WorldWideScience

Sample records for area fishery evaluation

  1. Evaluation on Fishery Resources in Daxingshan Artificial Reef Area of Huidong County

    Institute of Scientific and Technical Information of China (English)

    Xue; FENG; Pimao; CHEN; Huiquan; LI; Jiezhang; HONG

    2013-01-01

    In order to evaluate placement of artificial reefs in Huidong County and observe biological aggregating effect of fishery resources,background investigation and follow-up investigation were carried out for trawl fishing and gill-net fishing in Daxingshan artificial reef area.The biological resource density index(D),Margalef species richness index(R),Shannon-Winener diversity index(H’),and Pileou evenness index(J’)were used to study diversity of water biological population and resource density.Trawl fishing investigation indicated that after placement of reefs,there was significant increase in quantity of species of nekton,total resource density,species richness index,and diversity index in reef area,which were 1.321,2.07,1.012 and 1.084 times the value before placement of reefs respectively.Gill-net fishing investigation indicated that after placement of reefs,the quantity of species of nekton,total resource density,species richness index,and diversity index in reef area were 2.571,7.976,2.399 and 2.667 times the value before placement of reefs respectively.After reef placement,fishes and crabs become dominant population.It showed that after reef placement,attraction effect of fishes is significant,community structure is obviously optimized,and water environment in reef area is significantly improved.Thus,it proved that the multiplication system through artificial reefs has been basically established in Daxingshan reef area of Huidong County.

  2. Columbia River : Select Area Fishery Evaluation project : 1995-96 Annual Reports.

    Energy Technology Data Exchange (ETDEWEB)

    Hirose, Paul; Miller, Marc; Hill, Jim

    1998-06-01

    Water quality monitoring was conducted from November 1994 through October 1996 at five Oregon and three Washington select area study sites in the lower Columbia River. Physicochemical monitoring and aquatic biomonitoring programs were established to profile baseline parameters at each study site and document differences between study sites. Data collected at study sites where fish rearing operations were initiated indicate a potential negative impact on the surrounding benthic invertebrate communities.

  3. Selected Area Fishery Evaluation Project Economic Analysis Study Final Report, Final Draft Revision 4: November 10, 2006.

    Energy Technology Data Exchange (ETDEWEB)

    Bonneville Power Administration; Washington Department of Fish and Wildlife; Oregon Department of Fish and Wildlife

    2006-11-01

    The purpose of this Study is to provide an economic review of current and proposed changes to the Select Area Fishery Evaluation Project (SAFE or Project). The Study results are the information requested in comments made on the Project by a joint review dated March 2005 by the Northwest Power and Conservation Council (NPCC) Independent Scientific Review Panel (ISRP) and Independent Economic Analysis Board (IEAB). North et al. (2006) addressed technical questions about operations and plans, and this report contains the response information for comments concerning Project economics. This report can be considered an economic feasibility review meeting guidelines for cost-effective analysis developed by the IEAB (2003). It also contains other economic measurement descriptions to illustrate the economic effects of SAFE. The SAFE is an expansion of a hatchery project (locally called the Clatsop Economic Development Council Fisheries Project or CEDC) started in 1977 that released an early run coho (COH) stock into the Youngs River. The Youngs River entrance to the Columbia River at River Mile 12 is called Youngs Bay, which is located near Astoria, Oregon. The purpose of the hatchery project was to provide increased fishing opportunities for the in-river commercial fishing gillnet fleet. Instead of just releasing fish at the hatchery, a small scale net pen acclimation project in Youngs Bay was tried in 1987. Hirose et al. (1998) found that 1991-1992 COH broodstock over-wintered at the net pens had double the smolt-to-adult return rate (SAR) of traditional hatchery release, less than one percent stray rates, and 99 percent fishery harvests. It was surmised that smolts from other Columbia River hatcheries could be hauled to the net pens for acclimation and release to take advantage of the SAR's and fishing rates. Proposals were tendered to Bonneville Power Administration (BPA) and other agencies to fund the expansion for using other hatcheries smolts and other off

  4. FISHERY MANAGEMENT IN THE DANUBE CATCHMENT AREA

    Directory of Open Access Journals (Sweden)

    Tomislav Treer

    1999-12-01

    Full Text Available There are three successive regions of the Danube, each of which has to deal with its own problems in fisheries. Sport fishing and ecological recontruction problem matters predominate in the upper flow. These problems also characterize the middle flow, where to a certain extent, commercial fishery is coming into view, while the lower flow has to deal with commercial fishery problems to full extent. The difference is not so much due to the morphometry as to the development and state of the economy of the countries in the river basin, their legislation on fishery and the manner in which the legislation is applied. Numerous dams of the upper flow of the Danube (29 in Germany, 9 in Austria, influence significantly the ichthyocenoses. An extreme example of that is Gabčikovo dam at the Slovak-Hungarian border where fish catch decreased to one fourth. In the lower segment of the Danube fish catch falls down to one third and is followed, by a drastically negative change of fish species composition. The records show that highly valued species as sturgeons, pike and tench are in drastic decline over the last few years. The changes were caused by physical barriers, like dams and weirs, by water pollution, by increasing concentration of nutrients and heavy metals, by poaching and by overexploitation. For all those alarming reasons, some legal interventions in commercial fishery must be undertaken. In the middle flow, where the Danube flows through Croatian territory, there have also been declining trends of bentivore and phytophyl species respectively. The law supports the coexistence of sport and commercial fishery in this area and although sport fishing should be given the advantage, commercial fishing should be rigorously supervised and allowed only when there is a naturally produced surplus. Because of fish migrations and political frontiers of Danube area, it is essential that the neighboring countries coordinate their efforts in managing fisheries

  5. Fisheries management evaluation: a case study of the British Columbia groundfish fisheries

    OpenAIRE

    Edwards, Danielle Noella

    2008-01-01

    The role of evaluation in fisheries management has been expanding in response to growing concerns over the state of the world’s fisheries and ocean ecosystems. The British Columbia groundfish fisheries have been promoted as an example of fisheries management best practices but have not included comprehensive program evaluation within the management system. This study identifies best practices for comprehensive fisheries management evaluation and assesses the current state of evaluation in the...

  6. Development of Ecological Fishery in Poyang Lake Area

    Institute of Scientific and Technical Information of China (English)

    Haihua; WANG; Yilong; FU; Shengyun; KANG; Yougen; LI; Wenjing; CHEN

    2013-01-01

    Through in-depth analysis on history and current situations of fishery development in Poyang Lake area,this paper presents location,resource and environment advantages in development of ecological fishery.According to orientation of leading functions,Poyang Lake can be divided into breeding development,capture operation,enhancement protection and ecological rehabilitation functional zones.In accordance with industrial foundation and ecological advantages of cities and counties in Poyang Lake,it determines the reasonable distribution of 8 leading industries:river crabs,shrimps(Procambarus clarkia),eels,Pengze crucian carp,Siniperca chuatsi,Channa argus,Ietalurus Punetaus,and pearl.On the basis of systematically summing up exploration experience,it comes up with the development path"ecology oriented fishery and industrialization oriented ecological fishery"for ecological fishery in Poyang Lake area.It proposes a series of key technological measures,including reducing fertilizer and drugs,increasing output and benefits,low consumption and emission,high quality and safety,and standardization,to realize a benign cycle of"cost saving,benefit increasing,quality improving and low carbon"and the multi-win objective of coordination between ecology,economy and society.

  7. Mediterranean Marine Protected Areas And Fisheries Reserves

    OpenAIRE

    2003-01-01

    Marine protected areas (MPAs) are defined as “Any area of the littoral or subtidal terrain, together with its overlying water and associated flora, fauna, historical and cultural features, which has been reserved by law or other effective means to protect part or all of the enclosed environment” (Kelleher and Kenchington, 1992). This definition includes intertidal reserves, as well as areas for the protection of shipwrecks and archaeological remains. Marine protected areas a...

  8. 50 CFR Table 6 to Part 679 - Steller Sea Lion Protection Areas Atka Mackerel Fisheries Restrictions

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Steller Sea Lion Protection Areas Atka Mackerel Fisheries Restrictions 6 Table 6 to Part 679 Wildlife and Fisheries FISHERY CONSERVATION AND... THE EXCLUSIVE ECONOMIC ZONE OFF ALASKA Pt. 679, Table 6 Table 6 to Part 679—Steller Sea...

  9. 50 CFR Table 5 to Part 679 - Steller Sea Lion Protection Areas Pacific Cod Fisheries Restrictions

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Steller Sea Lion Protection Areas Pacific Cod Fisheries Restrictions 5 Table 5 to Part 679 Wildlife and Fisheries FISHERY CONSERVATION AND... THE EXCLUSIVE ECONOMIC ZONE OFF ALASKA Pt. 679, Table 5 Table 5 to Part 679—Steller Sea...

  10. 50 CFR Table 4 to Part 679 - Steller Sea Lion Protection Areas Pollock Fisheries Restrictions

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Steller Sea Lion Protection Areas Pollock... EXCLUSIVE ECONOMIC ZONE OFF ALASKA Pt. 679, Table 4 Table 4 to Part 679—Steller Sea Lion Protection Areas Pollock Fisheries Restrictions Steller Sea Lion Protection Areas Pollock Fisheries Restrictions...

  11. An evaluation of artisanal fisheries resources in Cross River State

    OpenAIRE

    Adaka, G.S.

    2005-01-01

    Artisanal fisheries resources and its exploitation trends in Cross River State were evaluated using questionnaire and participatory Rapid Appraisal (PRA) methods for a period of 5 years (1991-1995). They were open-access or unrestricted access fishing in Cross River State within the period under view. It was also discovered that, they were no proper records from the Department of fisheries. There was a decline in the relative abundance of the stock that constituted the important marine and fr...

  12. Ecologically Important Areas for Pacific Fishery Management Council's June 2005 Preferred Alternative, Groundfish EFH Final EIS

    Data.gov (United States)

    Pacific States Marine Fisheries Commission — These data depict ecologically important areas that were developed through a collaborative process involving Oceana; groundfish trawl fishermen, organized by the...

  13. Study on Fishery Ecological Environment and Fish Species Diversity in Yantan Water Area

    Institute of Scientific and Technical Information of China (English)

    Yaoquan; HAN; Anyou; HE; Li; HUANG; Jun; SHI; Dapeng; WANG; Weijun; WU

    2015-01-01

    Through analysis on water quality,planktonic organism,fish resources,and fish species diversity in Yantan water area,this paper evaluated current situation of quality of fishery ecological environment in Yantan water area. The survey recorded all 52365 fishes and 1410. 2kg catches obtained by fishermen in half a year,and more than 98% catches are small fishes. The Shannon-Weiner diversity index of Yantan water area is 0. 162,Wilhm improvement index is 1. 814,DG- Findex is 0. 083,and the index of fish species diversity is far lower than other water areas. The average quantity per unit of phytoplankton is 1. 0134 million ind. / L,and the average quantity per unit of organisms is 1. 1151 mg / L. The average quantity per unit of zooplankton is 459. 6 ind. / L,and the average quantity per unit of organisms is 0. 6422 mg / L. Evaluation results indicate that water quality and planktonic organism in Yantan water area are basically normal,but fish resources are increasingly exhausted,fish resource composition is not reasonable,and fish species diversity is extremely low. From the perspective of biomanipulation,it is required to restore fishery ecological environment of reservoir area through restoring normal composition of aquatic organisms.

  14. An Evaluation of Rebuilding Policies for U.S. Fisheries.

    Directory of Open Access Journals (Sweden)

    Ashleen Julia Benson

    Full Text Available Rebuilding depleted fish populations is a priority of modern fisheries management. In the U.S., strong statutory mandates extend to both the goals and process by which stocks are to be rebuilt. However, the National Standard Guidelines that govern the implementation of the Magnuson-Stevens Fishery Conservation and Management Act may change to increase flexibility in rebuilding requirements. In this study we evaluate performance of the status quo approach to fish stock rebuilding in the United States against 3 alternatives that have been proposed to improve rebuilding outcomes. These alternatives either simplify the analytical requirements of rebuilding analyses or apply 'best practices' in fisheries management, thereby avoiding the need for rebuilding analyses altogether. We use a Management Strategy Evaluation framework to evaluate rebuilding options across 6 fish life history types and 5 possible real-world fishery scenarios that include options for stock assessment quality, multiple fleets, and the degree to which the stocks are overfished at the start of the analysis. We show that the status quo rebuilding plan and a harvest control rule that reduces harvest rates at low stock size generally achieve the best rebuilding outcomes across all life-history types and fishery scenarios. Both approaches constrain fishing in the short term, but achieve high catches in the medium and long term as stocks rebuild to productive levels. These results support a growing body of literature that indicates that efforts to end overfishing early pay off in the medium- to long-term with higher cumulative catches than the alternative.

  15. An Evaluation of Rebuilding Policies for U.S. Fisheries.

    Science.gov (United States)

    Benson, Ashleen Julia; Cooper, Andrew B; Carruthers, Thomas R

    2016-01-01

    Rebuilding depleted fish populations is a priority of modern fisheries management. In the U.S., strong statutory mandates extend to both the goals and process by which stocks are to be rebuilt. However, the National Standard Guidelines that govern the implementation of the Magnuson-Stevens Fishery Conservation and Management Act may change to increase flexibility in rebuilding requirements. In this study we evaluate performance of the status quo approach to fish stock rebuilding in the United States against 3 alternatives that have been proposed to improve rebuilding outcomes. These alternatives either simplify the analytical requirements of rebuilding analyses or apply 'best practices' in fisheries management, thereby avoiding the need for rebuilding analyses altogether. We use a Management Strategy Evaluation framework to evaluate rebuilding options across 6 fish life history types and 5 possible real-world fishery scenarios that include options for stock assessment quality, multiple fleets, and the degree to which the stocks are overfished at the start of the analysis. We show that the status quo rebuilding plan and a harvest control rule that reduces harvest rates at low stock size generally achieve the best rebuilding outcomes across all life-history types and fishery scenarios. Both approaches constrain fishing in the short term, but achieve high catches in the medium and long term as stocks rebuild to productive levels. These results support a growing body of literature that indicates that efforts to end overfishing early pay off in the medium- to long-term with higher cumulative catches than the alternative. PMID:26761442

  16. Evaluating the effect of fishery closures: lessons learnt from the Plaice Box

    DEFF Research Database (Denmark)

    Beare, Doug; Rijnsdorp, Adriaan D.; Blæsbjerg, Mette; Damm, Ulrich; Egekvist, Josefine; Fock, Heino; Kloppmann, Matthias; Röckmann, Christine; Schroeder, Alexander; Schulze, Torsten; Tulp, Ingrid; Ulrich, Clara; Hal, Ralf van; Kooten, Tobias van; Verweij, Marieke

    2013-01-01

    to the fact that fishing had never been completely prohibited in the area. To evaluate whether the PB has been an effective management measure, the changes in the ecosystem (plaice, demersal fish, benthos) and fisheries are analysed to test whether the observed changes are due to the PB or to changes...... main food items of plaice (polychaetes and small bivalves) remained stable or decreased both inside and outside the PB. Currently catches of both plaice and sole from within the PB are lower than in the late 1980s and the exemption fleet often prefers to fish outside the Plaice Box alongside much...... setting testable objectives and an appropriate evaluation framework including both ecological and socio-economic indicators when implementing closed areas. Key words: Marine Protected Area, MPA, spatial management, fisheries management, discards, climate change, trawling impact, North Sea, benthos...

  17. Fish, Benthic and Urchin Survey Data from Kahekili Herbivore Fisheries Management Area (HFMA), Maui since 2008

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — In 2009, the state of Hawaii established the Kahekili Herbivore Fisheries Management Area (KHFMA) in West Maui. Fishing for herbivores (parrotfishes, surgeonfishes,...

  18. Management Pollution Model for Sustainability Tourism and Fisheries in Coastal Areas of Makassar City

    OpenAIRE

    Hamzah,

    2012-01-01

    HAMZAH. Management Pollution Model for Sustainability Tourism and Fisheries in Coastal Areas of Makassar City. Under direction of ACHMAD FAHRUDIN, HEFNI EFFENDI, ISMUDI MUCHSIN Coastal areas of Makassar have a rapid development growth deployed with various activities including tourism and fisheries. Such resource utilizations have impacted coastal environment particularly its water quality. This research is intended to assess bio-physical condition, water quality, pollution loading, poll...

  19. Areas of Interest for Pacific Fishery Management Council's June 2005 Preferred Alternative, Habitat Areas of Particular Concern (HAPC) for Groundfish EFH Final EIS

    Data.gov (United States)

    Pacific States Marine Fisheries Commission — These data depict areas of interest that were designated by the Pacific Fishery Management Council on June 15, 2005 as part of the Preferred Alternative, Habitat...

  20. Lake Roosevelt Fisheries Evaluation Program : Limnological and Fisheries Monitoring Annual Report 1999.

    Energy Technology Data Exchange (ETDEWEB)

    McLellan, Holly; Lee, Chuck; Scofield, Ben; Pavlik, Deanne

    1999-08-01

    other impacts to phytoplankton, zooplankton and fish caused by reservoir drawdowns and low water retention times; (2) quantification of seasonal distributions, standing crop, and habitat use of fish food organisms; (3) examination of variations in fish growth and abundance in relation to reservoir operations, prey abundance and predator/prey relationships; and (4) quantification of habitat alterations due to hydrooperations. The second goal of the LRMP is to evaluate the impacts of hatchery kokanee salmon and rainbow trout on the ecosystem and to determine stocking strategies that maximize angler harvest and return of adult kokanee salmon to egg collection facilities. Major tasks of the hatchery evaluation portion of the project include conducting a year round reservoir wide creel survey, sampling the fishery during spring, summer and fall via electro-fishing and gillnet surveys, and collecting information on diet, growth, and age composition of various fish species in Lake Roosevelt.

  1. Economic, Environmental, and Social Evaluation of Africa's Small-Scale Fisheries

    OpenAIRE

    World Bank

    2015-01-01

    This report is the culmination of a cross-African countries analytical and empirical study commissioned by the World Bank, which set out to improve the understanding of the characteristics and environmental, economic, and social performances of small-scale fisheries in Africa. It applies a common evaluation tool, called Fishery Performance Indicators (FPIs), which evaluates the ecological,...

  2. Evaluating the effect of fishery closures: Lessons learnt from the Plaice Box

    Science.gov (United States)

    Beare, Doug; Rijnsdorp, Adriaan D.; Blaesberg, Mette; Damm, Ulrich; Egekvist, Josefine; Fock, Heino; Kloppmann, Matthias; Röckmann, Christine; Schroeder, Alexander; Schulze, Torsten; Tulp, Ingrid; Ulrich, Clara; van Hal, Ralf; van Kooten, Tobias; Verweij, Marieke

    2013-11-01

    To reduce discarding of plaice Pleuronectes platessa in the North Sea flatfish fisheries, the major nursery areas were closed to large trawlers in 1995. The area closed was named the ‘Plaice Box’ (PB) and beam trawl effort fell by over 90%,while the exemption fleets of small flatfish beam trawlers, gill netters targeting sole (Solea solea) and shrimp (Crangon crangon) trawlers increased their effort. Contrary to the expectation, plaice landings and biomass declined. The initial support for the PB from the fisheries was lost, whereas other stakeholder groups claimed that any failure was due to the fact that fishing had never been completely prohibited in the area. To evaluate whether the PB has been an effective management measure, the changes in the ecosystem (plaice, demersal fish, benthos) and fisheries are analyzed to test whether the observed changes are due to the PB or to changes in the environment unrelated to the PB. Juvenile growth rate of plaice decreased and juveniles moved to deeper waters outside the PB. Demersal fish biomass decreased, whereas the abundance of epibenthic predators (Asterias rubens and Cancer pagurus) increased in the PB. Endobenthos, in particular the main food items of plaice (polychaetes and small bivalves) remained stable or decreased both inside and outside the PB. Currently catches of both plaice and sole from within the PB are lower than in the late 1980s and the exemption fleet often prefers to fish outside the Plaice Box alongside much larger competitors. It is concluded that the observed changes are most likely related to changes in the North Sea ecosystem, which may be related to changes in eutrophication and temperature. It is less likely that they are related to the change in fishing. This case study highlights the importance of setting testable objectives and an appropriate evaluation framework including both ecological and socio-economic indicators when implementing closed areas.

  3. 76 FR 16699 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2011-03-25

    ...-XA319 Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf... for pollock in Statistical Area 620 in the Gulf of Alaska (GOA). This action is necessary to prevent... Management Plan for Groundfish of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery...

  4. 78 FR 62005 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2013-10-11

    ...; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine Fisheries Service (NMFS...: NMFS is prohibiting directed fishing for pollock in Statistical Area 630 in the Gulf of Alaska (GOA... the Fishery Management Plan for Groundfish of the Gulf of Alaska (FMP) prepared by the North...

  5. Lake Roosevelt Fisheries Evaluation Program, Part A; Fisheries Creel Survey and Population Status Analysis, 1998 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Spotts, Jim; Shields, John; Underwood, Keith

    2002-05-01

    The Lake Roosevelt Fisheries Evaluation Program is the result of a merger between two projects, the Lake Roosevelt Monitoring Program (BPA No. 8806300) and the Lake Roosevelt Data Collection Project (BPA No. 9404300). These projects were merged in 1996 to continue work historically completed under the separate projects, and is now referred to as the Lake Roosevelt Fisheries Evaluation Program. Creel and angler surveys estimated that anglers made 196,775 trips to Lake Roosevelt during 1998, with an economic value of $8.0 million dollars, based on the Consumer Price Index (CPI). In 1998 it was estimated that 9,980 kokanee salmon, 226,809 rainbow trout, 119,346 walleye, and over 14,000 smallmouth bass and other species were harvested. Creel data indicates that hatchery reared rainbow trout contribute substantially to the Lake Roosevelt fishery. The contribution of kokanee salmon to the creel has not met the expectations of fishery managers to date, and is limited by entrainment from the reservoir, predation, and possible fish culture obstacles. The 1998 Lake Roosevelt Fisheries Creel and Population Analysis Annual Report includes analyses of the relative abundance of fish species, and reservoir habitat relationships (1990-1998). Fisheries surveys (1990-1998) indicate that walleye and burbot populations appear to be increasing, while yellow perch, a preferred walleye prey species, and other prey species are decreasing in abundance. The long term decreasing abundance of yellow perch and other prey species are suspected to be the result of the lack of suitable multiple reservoir elevation spawning and rearing refugia for spring spawning reservoir prey species, resulting from seasonal spring-early summer reservoir elevation manipulations, and walleye predation. Reservoir water management is both directly, and indirectly influencing the success of mitigation hatchery production of kokanee salmon and rainbow trout. Tag return data suggested excessive entrainment occurred in

  6. Area West of the 700 fathom Depth Contour for Pacific Fishery Management Council's June 2005 Preferred Alternative, Groundfish EFH Final EIS

    Data.gov (United States)

    Pacific States Marine Fisheries Commission — These data depict area within the West Coast Exclusive Economic Zone (EEZ) that is west of the 700 fathom isobath. This area was designated by the Pacific Fishery...

  7. Mesophotic depths as refuge areas for fishery-targeted species on coral reefs

    Science.gov (United States)

    Lindfield, Steven J.; Harvey, Euan S.; Halford, Andrew R.; McIlwain, Jennifer L.

    2016-03-01

    Coral reefs are subjected to unprecedented levels of disturbance with population growth and climate change combining to reduce standing coral cover and stocks of reef fishes. Most of the damage is concentrated in shallow waters (humans can comfortably operate and where physical disturbances are most disruptive to marine organisms. Yet coral reefs can extend to depths exceeding 100 m, potentially offering refuge from the threats facing shallower reefs. We deployed baited remote underwater stereo-video systems (stereo-BRUVs) at depths of 10-90 m around the southern Mariana Islands to investigate whether fish species targeted by fishing in the shallows may be accruing benefits from being at depth. We show that biomass, abundance and species richness of fishery-targeted species increased from shallow reef areas to a depth of 60 m, whereas at greater depths, a lack of live coral habitat corresponded to lower numbers of fish. The majority of targeted species were found to have distributions that ranged from shallow depths (10 m) to depths of at least 70 m, emphasising that habitat, not depth, is the limiting factor in their vertical distribution. While the gradient of abundance and biomass versus depth was steepest for predatory species, the first species usually targeted by fishing, we also found that fishery-targeted herbivores prevailed in similar biomass and species richness to 60 m. Compared to shallow marine protected areas, there was clearly greater biomass of fishery-targeted species accrued in mesophotic depths. Particularly some species typically harvested by depth-limited fishing methods (e.g., spearfishing), such as the endangered humphead wrasse Cheilinus undulatus, were found in greater abundance on deeper reefs. We conclude that mesophotic depths provide essential fish habitat and refuge for fishery-targeted species, representing crucial zones for fishery management and research into the resilience of disturbed coral reef ecosystems.

  8. Fishery regimes in Atlanto-Mediterranean European Marine Protected Areas

    OpenAIRE

    Vandeperre, F.; Higgins, R; R. S. Santos; Marcos, C.; Pérez Ruzafa, A.; García-Charton, J.A.; Lozano, I.J.; Mangi, S.; Maynou, F.; Salas, F.

    2008-01-01

    Marine Protected Areas (MPAs) are critically important to the conservation of marine biodiversity and ecological processes and to achieving a sound basis for sustainable use and development of marine environments and resources. This is clearly reflected in the statement from World Summit on Sustainable Development (Johannesburg): "MPAs are the key to achieving at least 10% of each of the world's ecological regions effectively conserved - the target established at the 6th Con...

  9. Management of fisheries in harbour porpoise (Phocoena phocoena) marine protected areas

    DEFF Research Database (Denmark)

    Kindt-Larsen, Lotte

    The harbour porpoise (Phocoena phocoena) is the focus of a range of conservation efforts and policies aiming at reducing bycatch of the species in gillnet fisheries. In European waters, the harbour porpoise is protected within the Habitats Directive (Annexes II and IV), implying that the population......, Member States are obliged to nominate candidate protected areas in their waters to the EU Commission and within six years establish legislation to implement them as special areas of conservation and prepare management plans. Up to this point in time, however, no such management plans exist. This Ph.......D. thesis focuses on research methods and management tools, which can contribute to a better scientific understanding in the preparation of fisheries management plans for Natura2000 sites designated for harbour porpoises. Firstly, it investigates the potential use of CCTV cameras to document bycatch...

  10. Evaluation of impact of artificial reefs on artisanal fisheries: need for complementary approaches

    Directory of Open Access Journals (Sweden)

    Barbara Koeck

    2011-01-01

    Full Text Available In a general context of fisheries decline due to overfishing and to other phenomena such as climate change, it appears to be crucial to implement a sustainable management of natural resources by finding a balance between conservation and exploitation purposes. Artificial reefs (ARs have recently become one of the existing management tools, often in combination with fishing quotas or marine protected areas. To evaluate the effectiveness of the studied ARs, different methods have been used: (i visual census by SCUBA diving (AR scale, (ii fisheries landings survey (local scale and (iii external fish tagging (regional scale. Underwater visual census (UVC showed a significantly higher species richness and density in ARs than in the control site. Abundance, biomass and LPUE data (Landings Per Unit Effort issued from artisanal fisheries landings survey were not significantly different around the AR system from other fishing grounds of the French Catalan coast. The tagging experiments on Diplodus sargus suggested that the connectivity of demersal fish populations must be taken into account to evaluate the influence area of ARs and thus their indirect impacts on artisanal fisheries. The present study highlights the interest of combining methods covering different spatial scales in order to evaluate direct and indirect impacts of ARs on artisanal fisheries. Methods for the evaluation of AR efficiency are discussed.Dentro do atual contexto de redução nos estoques de peixes ligados à sobrepesca, e também à outros fenômenos tais como as mudanças climáticas, é indispensável implementar um plano de gestão durável para os recursos pesqueiros, conciliando sua exploração e conservação. Os recifes artificiais (RAs tem surgido nos dias atuais como uma importante ferramenta de gestão, freqüentemente combinada à cotas de pesca ou áreas marinhas protegidas. Com a finalidade de avaliar a eficiência dos recifes artificiais, utilizou-se os seguintes

  11. "A Future for Fisheries?" Setting of a Field-based Class for Evaluation of Aquaculture and Fisheries Sustainability

    Science.gov (United States)

    Macko, Stephen; O'Connell, Matthew

    2016-04-01

    For the first time in 2015, aquaculture yields approximately equaled global wild capture fisheries. Are either of these levels of production sustainable? This course explored the limitations of both sources of fishery landings and included legal limitations, environmental concerns and technological problems and adaptations. It made use of visits to aquaculture facilities, government laboratories like NOAA , as well as large fish distribution centers like J.J. McDowell's Seafood (Jessup, MD), and included presentations by experts on legalities including the Law of the Sea. In addition, short day-long trips to "ocean-related" locations were also used to supplement the experience and included speakers involved with aquaculture. Central Virginia is a fortunate location for such a class, with close access for travel to the Chesapeake Bay and numerous field stations, museums with ocean-based exhibits (the Smithsonian and National Zoo) that address both extant and extinct Earth history, as well as national/state aquaria in Baltimore and Virginia Beach. Furthermore, visits to local seafood markets at local grocery stores, or larger city markets in Washington, Baltimore and Virginia Beach, enhance the exposure to productivity in the ocean, and viability of the fisheries sustainability. Sustainability awareness is increasingly a subject in educational settings. Marine science classes are perfect settings of establishing sustainability awareness owing to declining populations of organisms and perceived collapse in fisheries worldwide. Students in oceanography classes often request more direct exposure to actual ocean situations or field trips. This new approach to such a course supplement addresses the requests by utilizing local resources and short field trips for a limited number of students to locations in which Ocean experiences are available, and are often supported through education and outreach components. The vision of the class was a mixture of classroom time

  12. Threats posed by artisanal fisheries to the reproduction of coastal fish species in a Mediterranean marine protected area

    Science.gov (United States)

    Lloret, J.; Muñoz, M.; Casadevall, M.

    2012-11-01

    Artisanal fisheries are frequently considered as a sustainable activity compatible with the conservation objectives of marine protected areas (MPAs). Few studies have examined the impacts of these fisheries on the reproductive potential of exploited fish species within the marine reserves. This study evaluated the potential impact of artisanal fishing on the reproduction of coastal fish species in a Mediterranean MPA through onboard sampling from January 2008 to December 2010. Eleven sex-changing fish species constituted an important part of the catch (20% overall and up to 60% of the total gill net catch) and, in five of them, most individuals were of one sex. Artisanal fishing can negatively affect the sustainability of those coastal fishes showing sex reversal, particularly the protogynous ones such as Diplodus cervinus and Epinephelus marginatus, as well as the species with complex mating systems (e.g. some sparids, labrids and scorpaenids). In all species the average size for the individuals captured was above the minimum landing size (where this exists), but in four species (Conger conger, Diplodus puntazzo, Sphyraena spp. and Sparus aurata) it was below the size of first maturity (L50). Results show that sex and size selection by artisanal fishing not only can have an impact on the reproduction of coastal fish species but may also be exacerbating rather than reducing the impact of fishing on coastal resources. Thus, new management actions need to be urgently implemented in the MPAs where artisanal fisheries are allowed to operate in order to protect the reproductive potential of these species, particularly those showing a complicated reproductive strategy.

  13. Yakima/Klickitat Fisheries Project Genetic Studies; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2005-2006 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Busack, Craig A.; Fritts, Anthony L.; Kassler, Todd (Washington Department of Fish and Wildlife, Olympia, WA)

    2006-05-01

    This report covers one of many topics under the Yakima/Klickitat Fisheries Project's Monitoring and Evaluation Program (YKFPME). The YKFPME is funded under two BPA contracts, one for the Yakama Nation and the other for the Washington Department of Fish and Wildlife (Contract number 22370, Project Number 1995-063-25). A comprehensive summary report for all of the monitoring and evaluation topics will be submitted after all of the topical reports are completed. This approach to reporting enhances the ability of people to get the information they want, enhances timely reporting of results, and provides a condensed synthesis of the whole YKFPME. The current report was completed by the Washington Department of Fish and Wildlife.

  14. Banks Lake Fishery Evaluation Annual Report 2002-2003.

    Energy Technology Data Exchange (ETDEWEB)

    Polacek, Matt; Knuttgen, Kamia; Shipley, Rochelle

    2003-11-01

    The Washington Department of Fish and Wildlife implemented the Banks Lake Fishery Evaluation Project (BLFEP) in September 2001 with funds from the Bonneville Power Administration. Fiscal Year (FY) 2001 of the BLFEP was used to gather historic information, establish methods and protocols, collect limnology data, and conduct the first seasonal fish surveys. FY 2002 was used to continue seasonal fish and lakewide creel surveys and adjust methods and protocols as needed. Water quality parameters were collected monthly from February to May and bi-monthly from June to August. Banks Lake water temperatures began to increase in April and stratification was apparent by June at all 3 limnology collection sites. By late August, the thermocline had dropped to nearly 20 meters deep, with 16-17 C temperatures throughout the epilimnion. Dissolved oxygen levels were generally above 10 mg/L until August when dissolved oxygen dropped near or below 5 mg/L below 20-meters deep. Secchi depths ranged from 2.5-8 meters and varied by location and date. Nearshore and offshore fish surveys were conducted in October 2002 and May and July 2003 using boat electrofishing, fyke net, gill net, and hydroacoustic surveys. Yellow Perch Perca flavescens (32 %) and cottid spp. (22 %) dominated the nearshore species composition in October; however, by May yellow perch (12 %) were the third most common species followed by smallmouth bass Micropterous dolomieui (34 %) and lake whitefish Coregonus clupeaformis (14 %). Lake whitefish dominated the offshore catch during October (78 %) and May (81 %). Fish diet analysis indicated that juvenile fishes consumed primarily insects and zooplankton, while adult piscivores consumed cottids spp. and yellow perch most frequently. For FY 2002, the following creel statistics are comprehensive through August 31, 2003. The highest angling pressure occurred in June 2003, when anglers were primarily targeting walleye and smallmouth bass. Boat anglers utilized Steamboat

  15. Decision-making for ecosystem-based management: evaluating options for a krill fishery with an ecosystem dynamics model.

    Science.gov (United States)

    Watters, G M; Hill, S L; Hinke, J T; Matthews, J; Reid, K

    2013-06-01

    Decision-makers charged with implementing ecosystem-based management (EBM) rely on scientists to predict the consequences of decisions relating to multiple, potentially conflicting, objectives. Such predictions are inherently uncertain, and this can be a barrier to decision-making. The Convention on the Conservation of Antarctic Marine Living Resources requires managers of Southern Ocean fisheries to sustain the productivity of target stocks, the health and resilience of the ecosystem, and the performance of the fisheries themselves. The managers of the Antarctic krill fishery in the Scotia Sea and southern Drake Passage have requested advice on candidate management measures consisting of a regional catch limit and options for subdividing this among smaller areas. We developed a spatially resolved model that simulates krill-predator-fishery interactions and reproduces a plausible representation of past dynamics. We worked with experts and stakeholders to identify (1) key uncertainties affecting our ability to predict ecosystem state; (2) illustrative reference points that represent the management objectives; and (3) a clear and simple way of conveying our results to decision-makers. We developed four scenarios that bracket the key uncertainties and evaluated candidate management measures in each of these scenarios using multiple stochastic simulations. The model emphasizes uncertainty and simulates multiple ecosystem components relating to diverse objectives. We summarize the potentially complex results as estimates of the risk that each illustrative objective will not be achieved (i.e., of the state being outside the range specified by the reference point). This approach allows direct comparisons between objectives. It also demonstrates that a candid appraisal of uncertainty, in the form of risk estimates, can be an aid, rather than a barrier, to understanding and using ecosystem model predictions. Management measures that reduce coastal fishing, relative to

  16. The Fishery as a Watery Commons: Lessons from the Experiences of Other Public Policy Areas for US Fisheries Policy

    OpenAIRE

    Lawrence J. White

    2006-01-01

    Open access, combined with modern technologies of fishing, has created serious problems of overfishing and threatens the sustainability of many U.S. fisheries. The common pool problem -- the ocean version of "the tragedy of the commons" -- is the root cause of the overfishing. The major regulatory policies of the past few decades that have tried to address overfishing -- restrictions on fishing methods and inputs (in essence, "command and control" regulation) -- have largely been failures. In...

  17. 75 FR 64958 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 of the Gulf...

    Science.gov (United States)

    2010-10-21

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 of the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA) for 72 hours. This action is necessary to fully use the 2010... Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under authority of...

  18. 77 FR 65330 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2012-10-26

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 620 of the Gulf of Alaska (GOA). This action is necessary to fully use the 2012 total... the Fishery Management Plan for Groundfish of the Gulf of Alaska (FMP) prepared by the North...

  19. 78 FR 63899 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2013-10-25

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA). This action is necessary to fully use the 2013 total... the Fishery Management Plan for Groundfish of the Gulf of Alaska (FMP) prepared by the North...

  20. 76 FR 13097 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2011-03-10

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA). This action is necessary to fully use the A season allowance... Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under authority of...

  1. 75 FR 14359 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2010-03-25

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA) for 72 hours. This action is necessary to fully use the B... zone according to the Fishery Management Plan for Groundfish of the Gulf of Alaska (FMP) prepared...

  2. 75 FR 57702 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 of the Gulf...

    Science.gov (United States)

    2010-09-22

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 of the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA). This action is necessary to fully use the C season allowance... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  3. 78 FR 63405 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2013-10-24

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 620 of the Gulf of Alaska (GOA). This action is necessary to fully use the 2013 total... the Fishery Management Plan for Groundfish of the Gulf of Alaska (FMP) prepared by the North...

  4. 77 FR 9588 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2012-02-17

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA). This action is necessary to fully use the A season allowance... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  5. 75 FR 64172 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 of the Gulf...

    Science.gov (United States)

    2010-10-19

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 of the Gulf of Alaska AGENCY: National Marine... Statistical Area 610 of the Gulf of Alaska (GOA) for 72 hours. This action is necessary to fully use the 2010... Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under authority of...

  6. 76 FR 11393 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2011-03-02

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA) for 24 hours. This action is necessary to fully use the A... Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under authority of...

  7. 75 FR 61638 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2010-10-06

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... for pollock in Statistical Area 630 of the Gulf of Alaska (GOA) 36 hours after opening directed... economic zone according to the Fishery Management Plan for Groundfish of the Gulf of Alaska (FMP)...

  8. Report on the Predation Index, Predator Control Fisheries, and Program Evaluation for the Columbia River Basin Experimental Northern Pikeminnow Management Program, 2008 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Porter, Russell [Pacific States Marine Fisheries Commission].

    2009-09-10

    This report presents results for year seventeen in the basin-wide Experimental Northern Pikeminnow Management Program to harvest northern pikeminnow1 (Ptychocheilus oregonensis) in the Columbia and Snake Rivers. This program was started in an effort to reduce predation by northern pikeminnow on juvenile salmonids during their emigration from natal streams to the ocean. Earlier work in the Columbia River Basin suggested predation by northern pikeminnow on juvenile salmonids might account for most of the 10-20% mortality juvenile salmonids experience in each of eight Columbia River and Snake River reservoirs. Modeling simulations based on work in John Day Reservoir from 1982 through 1988 indicated that, if predator-size northern pikeminnow were exploited at a 10-20% rate, the resulting restructuring of their population could reduce their predation on juvenile salmonids by 50%. To test this hypothesis, we implemented a sport-reward angling fishery and a commercial longline fishery in the John Day Pool in 1990. We also conducted an angling fishery in areas inaccessible to the public at four dams on the mainstem Columbia River and at Ice Harbor Dam on the Snake River. Based on the success of these limited efforts, we implemented three test fisheries on a system-wide scale in 1991 - a tribal longline fishery above Bonneville Dam, a sport-reward fishery, and a dam-angling fishery. Low catch of target fish and high cost of implementation resulted in discontinuation of the tribal longline fishery. However, the sport-reward and dam-angling fisheries were continued in 1992 and 1993. In 1992, we investigated the feasibility of implementing a commercial longline fishery in the Columbia River below Bonneville Dam and found that implementation of this fishery was also infeasible. Estimates of combined annual exploitation rates resulting from the sport-reward and dam-angling fisheries remained at the low end of our target range of 10-20%. This suggested the need for additional

  9. A Comprehensive Evaluation and Countermeasures of Fishery Development in China Based on Its Domestic Development and Foreign Trade

    Institute of Scientific and Technical Information of China (English)

    Shixiu ZHANG; Qi ZHANG; Yanyuan ZHANG

    2012-01-01

    Abstract [Objective] The aim was to make a comprehensive evaluation and explore strategies on fishery development. [Method] Fishery development in China was ana- lyzed and concerning evaluation system was established based on its development stage, international competiveness and exportation. In addition, a comprehensive evaluation was made on fishery and countermeasures were proposed considering from government, department of quality control, fishery guild, producing and process- ing enterprises. [Result] Although progresses have been made in fishery in China, some problems still exist, such as overdose of drug residues, overloading breeding, lower additional value of products, and fewer excellent and famous products. Hence, local governments should give much support to fishery and enhance competitiveness to improve the products in global market; departments of quality control should strengthen supervision and management on fishery products against technical trade barriers; fishery guilds or researching institutions should provide technical support for concerning breeding and processing which should be mainly relied on science and technology. [Conclusion] The research provided references for fishery development.

  10. Analysis of Recreational Fisheries in the Croatian Areas of the Sava and Danube Rivers

    Directory of Open Access Journals (Sweden)

    Daniel Matulić

    2010-12-01

    Full Text Available The aim of the research was to provide an overview of the status of recreational anglers in the Croatian areas of the Sava and Danube rivers in many aspects: social and demographic characteristics, preferences, level of fishing experience and involvement, understanding of legal regulations, consumptive orientation, attitudes and satisfaction levels, the dynamics of fishing and the structure of catch, etc. A questionnaire of 48 questions was issued and distributed among the recreational anglers on the fishing locations. The survey included a representative number of 383 recreational fishermen. Using Redundancy Analysis (RDA with dummy variables (explanatory variables, we studied the relationships of important recreational fishery parameters. We concluded that, as there is a variety of competing users of freshwater resources there is a necessity to provide the laws to all the parties involved. In addition, we have found a relationship between knowledge of legal regulations and level of education. Recreational fisheries are oft en considered satisfactory even if no fish has been caught. The key factors are contact with nature, social interaction and breaks from day-to-day routines. The basis for developing satisfying recreational fishing experiences provides understanding anglers motivations.

  11. 76 FR 11394 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2011-03-02

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the A season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  12. 78 FR 57097 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2013-09-17

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  13. 77 FR 14698 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2012-03-13

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  14. 76 FR 53658 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2011-08-29

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  15. 78 FR 17135 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2013-03-20

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  16. 76 FR 58156 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2011-09-20

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  17. 78 FR 8985 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2013-02-07

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the A season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  18. 78 FR 15643 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2013-03-12

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  19. 77 FR 12505 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2012-03-01

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the A season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  20. 77 FR 64762 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2012-10-23

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the 2012 total allowable... exclusive economic zone according to the Fishery Management Plan for Groundfish of the Gulf of Alaska...

  1. 78 FR 11789 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2013-02-20

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the A season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  2. 75 FR 19562 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2010-04-15

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  3. 76 FR 14319 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2011-03-16

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  4. 75 FR 6589 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2010-02-10

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the A season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  5. 77 FR 58505 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2012-09-21

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  6. 77 FR 16481 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2012-03-21

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  7. 77 FR 56564 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2012-09-13

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  8. 75 FR 11749 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2010-03-12

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  9. 76 FR 17793 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2011-03-31

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under authority of...

  10. 77 FR 64240 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2012-10-19

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the 2012 total allowable... exclusive economic zone according to the Fishery Management Plan for Groundfish of the Gulf of Alaska...

  11. 78 FR 20037 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2013-04-03

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance of... of the Gulf of Alaska (FMP) prepared by the North Pacific Fishery Management Council under...

  12. Analysis of Recreational Fisheries in the Croatian Areas of the Sava and Danube Rivers

    Directory of Open Access Journals (Sweden)

    Daniel Matulić

    2014-02-01

    Full Text Available Normal 0 21 false false false MicrosoftInternetExplorer4 st1\\:*{behavior:url(#ieooui } /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Obična tablica"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} The aim of the research was to provide an overview of the status of recreational anglers in the Croatian areas of the Sava and Danube rivers in many aspects: social and demographic characteristics, preferences, level of fishing experience and involvement, understanding of legal regulations, consumptive orientation, attitudes and satisfaction levels, the dynamics of fishing and the structure of catch, etc. A questionnaire of 48 questions was issued and distributed among the recreational anglers on the fishing locations. The survey included a representative number of 383 recreational fishermen. Using Redundancy Analysis (RDA with dummy variables (explanatory variables, we studied the relationships of important recreational fishery parameters. We concluded that, as there is a variety of competing users of freshwater resources there is a necessity to provide the laws to all the parties involved. In addition, we have found a relationship between knowledge of legal regulations and level of education. Recreational fisheries are oft en considered satisfactory even if no fish has been caught. The key factors are contact with nature, social interaction and breaks from day-to-day routines. The basis for developing satisfying recreational fishing experiences provides understanding anglers motivations.

  13. Recreational Fisheries and Marine Protected Area Management: Marine Policy and Environmental Management of the Flower Garden Banks National Marine Sanctuary (USA

    Directory of Open Access Journals (Sweden)

    Juan Carlos Levesque

    2011-06-01

    Full Text Available The demand on our marine resources is increasing at unsustainable rates; however, marine policy and management is complex, political, and time consuming. One tool that resource managers in the United States use for managing, protecting, and conserving fragile marine resources is the designation of Marine Protected Areas. Presently, the public is concerned with the status and health of the fish and fisheries associated with the Flower Garden Banks National Marine Sanctuary (FGBNMS. Given these conservation and social issues, the main goal of this study was to provide an evaluation of the recreational fisheries associated with the FGBNMS. Findings showed that recreational landings were dominated by red snapper, vermilion snapper, and gray triggerfish; landings varied significantly by month and location. The highest fishing effort was in summer and the highest catch rates were in spring and fall; catch rates varied significantly by species and location in some areas. The mean weight of the primary recreational species taken was correlated negatively with time, but statistical similar. Proposed management measures for the FGBNMS are expected to impact some recreational fisheries, but long-term outcomes should benefit the Gulf of Mexico ecosystem.

  14. Fisheries Closed Areas Strengthen Scallop Larval Settlement and Connectivity Among Closed Areas and Across International Open Fishing Grounds: A Model Study

    Science.gov (United States)

    Davies, Kimberley T. A.; Gentleman, W. C.; DiBacco, C.; Johnson, C. L.

    2015-09-01

    This study examined whether a measured increase in average body size of adult sea scallops inside three fishery closed areas on Georges Bank (GB), United States (US), was sufficient to increase larval supply to closed areas and open fishing areas in both US and Canadian areas of the Bank. The effects of adult scallop density-at-size and fecundity-at-size on egg production were compared among open and closed fishery areas, countries, and time periods before and after the closed areas were established. Estimated egg production was then used to define spawning conditions in a coupled biological-physical larval tracking model that simulated larval development, mortality, and dispersal. Results showed that order of magnitude increases in larval settlement after closure were facilitated by increases in size-dependant egg production inside and dispersal from Closed Areas I and II, but not Nantucket Lightship Closed Area. The distributions of both egg production and larval settlement became more uniform across the Bank, causing the relative contribution of Canadian larvae to US scallop aggregations to decrease after establishment of Closed Areas I and II. Decreases in small and medium-sized scallop density in Canada and decreases in large scallops over the US-Southern Flank after closure caused local declines in egg production but were not sufficient to negatively affect larval settlement at the regional scale. Our model suggests that the establishment of fishery closed areas on GB considerably strengthened larval supply and settlement within and among several adult scallop aggregations.

  15. Coral Reef Ecosystem Data from the 2010-2011 Kahekili Herbivore Fisheries Management Area, West Maui, Herbivore Enhancement as a Tool for Reef Restoration Project (NODC Accession 0082869)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This research targets the Hawaii Coral Reef Initiative (HCRI) Priority Area A: Kahekili, Maui: Herbivore Fisheries Management Area (KHFMA). The project goal was to...

  16. Ways of Fishery Local Life: Processes of Participation in Management of Natural Resources in the Coastal Areas of the Upper Gulf of Eastern Area

    Directory of Open Access Journals (Sweden)

    Sulak Sa-Ngiamlak

    2011-01-01

    Full Text Available Problem statement: Local fishery was an inherited occupation for a long time. The objective of this research were to study: (1 the local fishery lifestyle of community in local fishery on upper area in Gulf of Thailand, (2 the appropriate participation process in natural resource management on upper part in Gulf of Thailand of people and organization and (3 the guidelines in natural resource management on the coastal area in upper part on Gulf of Thailand as relevant to local fishery lifestyle. Approach: The research area consisted of the shore of upper area in Gulf of Thailand including: Chachoengsao, Samutprakan, Samutsakon, Samutsongkram, Pechburi, Chonburi, Ra-yong, Chantaburi and Trad provinces. The samples as informants were 100 persons. The instruments using for data collection included the Survey, Interview Form, Observation Form, Record Form of Focus Group Discussion and Record Form of Participatory Workshop. The obtained data were classified into groups and investigated by using Triangulation Technique. Qualitative data were analyzed based on specified objectives. Results: The study of local fishery lifestyle found that there was location as in the present area owing to the fertility of area next to the sea. So, they could earn their living by fishery on coastal area. The local fishermen’s lifestyle was simple. Their living places were wooden houses with high space under a Thai house. For relationship of relative groups, they still helped each other among community people. They had belief in guardian spirit of a ship or boat and Kromluang Choomponke dudomsak. They did traditional fishery. Most of their instruments were made by themselves and adapted based on appropriateness. The wisdoms were transferred within their family, (2 the participation process in appropriate natural resource management, found that based on problem situations of natural resource on coastal area in upper area on Gulf of Thailand, being destroyed. Consequently

  17. An integrated approach is needed for ecosystem based fisheries management: insights from ecosystem-level management strategy evaluation.

    Directory of Open Access Journals (Sweden)

    Elizabeth A Fulton

    Full Text Available An ecosystem approach is widely seen as a desirable goal for fisheries management but there is little consensus on what strategies or measures are needed to achieve it. Management strategy evaluation (MSE is a tool that has been widely used to develop and test single species fisheries management strategies and is now being extended to support ecosystem based fisheries management (EBFM. We describe the application of MSE to investigate alternative strategies for achieving EBFM goals for a complex multispecies fishery in southeastern Australia. The study was undertaken as part of a stakeholder driven process to review and improve the ecological, economic and social performance of the fishery. An integrated management strategy, involving combinations of measures including quotas, gear controls and spatial management, performed best against a wide range of objectives and this strategy was subsequently adopted in the fishery, leading to marked improvements in performance. Although particular to one fishery, the conclusion that an integrated package of measures outperforms single focus measures we argue is likely to apply widely in fisheries that aim to achieve EBFM goals.

  18. Fishery of the Uçá Crab Ucides Cordatus (Linnaeus, 1763 in a Mangrove Area in Cananéia, State of São Paulo, Brazil: Fishery Performance, Exploitation Patterns and Factors Affecting the Catches

    Directory of Open Access Journals (Sweden)

    Luis Felipe de Almeida Duarte

    2014-09-01

    Full Text Available The fishery of the mangrove crab (Ucides cordatus is one of the oldest sources of food, income and extractive activity in the estuarine systems of Brazil. The state of São Paulo has the largest population of any Brazilian state, and the city of Cananéia, in the Brazilian southeast has the highest recorded level of exploitation of the uçá-crab. Since 1990, this species has been under intense exploitation pressure due to the unauthorized use of a type of trap called 'redinha'. This type of fishing gear is considered harmful and is prohibited by Brazilian law, although its use is very common throughout the country. This study aims to evaluate the exploitation patterns of U. cordatus based on landing data and monitoring of the crab fishermen to verify the population structure of the crab stock and to identify the factors that influence the catches. A general view of the sustainability of the fishery for this resource is also provided for five defined mangrove sectors (areas A to E at Cananéia. For this purpose, fishery data were recorded during 2009-2010 by the Instituto de Pesca (APTA/SAA-SP, and monitoring of the capture procedures used by two fishermen was conducted to obtain biometry data (CW, carapace width and gender data for the captured crabs. The redinha trap was very efficient (86.4% and produced sustainable catches because the trapped crabs were legal-sized males (CW>60 mm, although some traps are lost or remain in the mangrove swamps and can cause pollution by introducing plastic debris. The fishery data were evaluated with a General Linear Model (GLM based on six factors: the characteristics of the crab fishermen, the time of capture (by month and year, the lunar phase, the productive sector and the reproductive period. The individual crab fishermen's empirical knowledge, the year of capture and the productive sector were the strongest influences on the crab catch per unit effort (CPUE. Differing extraction patterns were found in

  19. Optimal feedback controls : comparative evaluation of the cod fisheries in Denmark, Iceland and Norway

    OpenAIRE

    Arnason, Ragnar; Sandal, Leif Kristoffer; Steinshamn, Stein Ivar; Vestergaard, Niels

    2000-01-01

    The purpose of this paper is to compare the relative efficiency of the fish harvesting policies of Iceland, Norway and Denmark. We have chosen to concentrate on the cod fishery as this is the single most important fishery in all three countries. The three nations conduct their cod fisheries in quite different contexts. First, there is a difference in national control over the respective fisheries. Iceland has been in virtual sole control of her cod fishery. Norway, on the other hand, shares h...

  20. Comparative evaluation of a mixed-fisheries effort-management system based on the Faroe Islands example

    DEFF Research Database (Denmark)

    Baudron, Alan; Ulrich, Clara; Nielsen, J. Rasmus; Boje, Jesper

    2010-01-01

    -specific measures may not be appropriate for such fisheries. A management strategy evaluation model was developed to compare an effort-management system based on the Faroese example with a TAC system as currently applied in EU fisheries. Results show that when stocks are considered in isolation, a total allowable...... appropriate, and interannual flexibility of the system appears to be the best compromise between short- and long-term objectives, as well as between biological sustainability and economic return....

  1. Artisanal Fisheries in the Ndumo Area of the Lower Phongolo River Floodplain, South Africa

    Directory of Open Access Journals (Sweden)

    Hendri C. Coetzee

    2015-03-01

    Full Text Available The aim of this study was to investigate the status of artisanal fisheries in the lower Phongolo River floodplain in northern KwaZulu-Natal, South Africa. A cross-sectional quantitative survey design was used that included the development of a questionnaire and a systematic survey among the five villages bordering the Ndumo Game Reserve. Data were collected over a 5-day period by a group of 16 fieldworkers and analysed using the Statistical Package for the Social Sciences, version 21. The results revealed that fish was the third most consumed protein in the area, that people consumed fish on average twice a week, that at least six fish species (and one recently introduced crayfish species were consumed regularly, and that most fish were obtained from local vendors, who in turn bought it from local fishermen and -women. Fishing activities also appeared to occur predominantly along the river system and targeted mainly red-breasted tilapia (Tilapia rendalli and Mozambique tilapia (Oreochromis mossambicus and, to a slightly lesser extent, African sharptooth catfish (Clarias gariepinus and brown squeaker (Synodontis zambezensis.Conservation implications: Given that Ndumo residents predominantly catch fish by means of non-commercial methods, that they do so for reasons of personal consumption and subsistence, and that they mostly target rivers and dams rather than the ecologically sensitive pans in the region, it would seem likely that fishing in the region might be sustainable for the moment. However, it is recommended that studies on the local fish populations and their reproductive rates be conducted so that the actual impact on local fish populations can be determined more accurately. This study serves to provide the necessary baseline data on fish utilisation in the region, which would enable the impact of artisanal fishing on fish reserves in the Ndumo region to be determined once population studies have been completed.

  2. Predisposition Factors of Students’ Choice in Agriculture, Fisheries and Natural Resources (AFNR Courses (Luzon Area

    Directory of Open Access Journals (Sweden)

    DR. ROMEO C. CLEMENTE

    2014-02-01

    Full Text Available This study is an inquiry into the motivational, personality, and extrinsic variables as factors affecting students’ predisposition in their career choice for agriculture, fisheries and forestry. It features empirical facts generally reflective of the recent conditions of public and private Higher Education Institutions (as NUCAFs, PIAs and PIFs identified by NAFES-CHED and DA of Luzon, Philippines vis-à-vis problems and reasons of continuous decline in the subscription of Filipino students for AFNR courses. Subsumed in the notable findings for Luzon area (i.e., most enrollees and their parents are marginalized; most mothers who are mere housekeepers heavily influence children’s disposition; most professional AFNR parents and enrollees’ siblings who are now AFNR professionals poorly influence them to take the same course; scholarship grants or free tuition fee as a prime way out to finish college education; personal ideal expectation of students for the government to provide promising local employment; common social motive to participate in addressing problems on food security for the continuously increasing population; economic motive to shorter waiting time for employment; SUCs feel obliged to expand curriculum offering to non-AFNR courses to survive institutional fiscal constraints; dearth of educationally qualified faculty and administrators; campaign for the AFNR curriculum programs as effective strategy to improve enrolment rate; low passing rate in AFNR board examinations due to low participation rate, expensive requirements of review, generic contents of examination, and deficiency on the quality and quantity of facilities/equipment and library holdings in most AFNR State Colleges/Universities served as framework of reference for the formulation of proposed education policy reforms/measures and advocacy interventions designed to spur interest in AFNR courses.

  3. Adaptive Co-management Networks: a Comparative Analysis of Two Fishery Conservation Areas in Sweden

    Directory of Open Access Journals (Sweden)

    Carl Rova

    2010-09-01

    Full Text Available Co-management constitutes a certain type of institutional arrangement that has gained increased attention among both policy makers and researchers involved in the field of natural resource management. Yet the concept of co-management is broad, and our knowledge about how different kinds of management structures affect the ability to deal with challenges pertinent to the commons is limited. One of these challenges is to foster an adaptive management process, i.e., a process in which rules are continuously revised and changed according to what is known about the ecological system. We aim to address the relationship between different kinds of co-management structures and adaptive management. To this end, we conducted a comparative case study of two Fishery Conservation Areas in Sweden. The concept of networks and the formal method of social network analysis are applied as theoretical and methodological devices. Building on previous research, we propose that adaptive management processes occur in co-management networks consisting of a heterogeneous set of actors that are centrally and densely integrated. Networks of this kind are believed to promote a management process in which actors with disparate perspectives and resources formulate a common view regarding the condition of the ecosystem, the basic problem to be solved, and what measures to adopt. The empirical findings support the existence of such a relationship. Nonetheless, the restricted empirical material, an inability to control for hidden variables, and a lack of success in determining causality among variables are all factors that call for more research.

  4. Evaluation of FAD-associated purse seine fishery reduction strategies for bigeye tuna ( Thunnus obesus) in the Indian Ocean

    Science.gov (United States)

    Tong, Yuhe; Chen, Xinjun; Xu, Liuxiong; Chen, Yong

    2013-07-01

    In the Indian Ocean, bigeye tuna supports one of the most important fisheries in the world. This fishery mainly consists of two components: longline and purse seine fisheries. Evidence of overfishing and stock depletion of bigeye tuna calls for an evaluation of alternative management strategies. Using an age-structured operating model, parameterized with the results derived in a recent stock assessment, we evaluated the effectiveness of applying constant fishing mortality (CF) and quasi-constant fishing mortality (QCF) strategies to reduce fishing effort of purse seining with fish aggregating devices (FADs) at different rates. Three different levels of productivity accounted for the uncertainty in our understanding of stock productivity. The study shows that the results of CF and QCF are similar. Average SSB and catch during simulation years would be higher if fishing mortality of FAD-associated purse seining was reduced rapidly. The banning or rapid reduction of purse seining with FAD resulted in a mean catch, and catch in the last simulation year, higher than that of the base case in which no change was made to the purse seine fishery. This could be caused by growth overfishing by purse seine fisheries with FADs according to the per-recruit analysis. These differences would be more obvious when stock productivity was low. Transferring efforts of FAD-associated purse seining to longline fisheries is also not feasible. Our study suggests that changes are necessary to improve the performance of the current management strategy.

  5. Effects of Water Pollution in Koluama Area, Niger Delta Area, Nigeria Fish Species Composition, Histology, Shrimp Fishery and Fishing Gear Type

    OpenAIRE

    J.F.N. Abowei; E.N. Ogamba

    2013-01-01

    The effect of water pollution in Koluama Area in the Niger Delta region of Nigeria to determine its effects on fish species composition, histology, shrimp fishery and fishing gear type. A total of twenty (20) species belonging to eleven (11) families were recorded. Strongylura senegalensis, Lagocephalus laevigatus, Tarpon atlantica, Pristis pristis, Galeoides decadatylus and Butis koilomatodon were rare. Ephippion guttifer, Chaetodipterus goreensis, Sardinella maderensis, Sardinella aurita, L...

  6. Crustacean fishery with bottom traps in an area of the southern Tyrrhenian Sea: species composition, abundance and biomass

    Directory of Open Access Journals (Sweden)

    L. CASTRIOTA

    2012-12-01

    Full Text Available The north-eastern coast of Sicily is characterized by deep, steep bottoms, not easily exploitable by trawl fishery. In this area few fishermen use bottom traps to catch shrimps and Norway lobsters. Our studies were aimed at identifying the species’ composition, abundance and biomass of crustaceans exploitable by bottom traps in this area. Monthly samples over one year were obtained from two lines of 30 baited traps each, at depths between 100 and 500 m. One line was placed in an area usually exploited by this fishery; the other line was used in the unexploited deepest bottoms. Trapped specimens were counted and weighed. ANOVA test, post hoc multiple comparisons and Student’s t test were applied on abundance and biomass data, for testing differences between areas, among seasons and species. During 22 fishing days, 23 species characteristic of the bathyal mud assemblage were caught, 8 of which were not considered commercial. Plesionika edwardsii was the most important species, recorded in the whole bathymetric range investigated; Nephrops norvegicus was significantly higher in terms of biomass in the unexploited area. The discard, of slight importance, was mostly represented by the crab Liocarcinus depurator. Spring season yielded the best catches in both areas, showing the highest values for both abundance and biomass

  7. The Fortune of the Commons: Participatory Evaluation of Small-Scale Fisheries in the Brazilian Amazon

    Science.gov (United States)

    Oviedo, Antonio F. P.; Bursztyn, Marcel

    2016-05-01

    This paper applies a participatory approach in evaluating small-scale fisheries, focusing on the Arapaima gigas fishery in the Brazilian Amazon. The evaluation uses the social-ecological system (SES) framework, adopted to explain the conditions needed for sustainability and user cooperation in natural resources management, as a more suitable alternative to the `blueprint' or `panaceas' approaches, based only on property rights or governmental intervention. However, managers and users often do not have the necessary information compiled and available for a specific SES while some actions need to be taken immediately. Thus, consensus and negotiation among stakeholders about SES variables may be useful to evaluate system performance and indicate actions to promote sustainability. In the case study, using a consensus-building model, we found that arapaima SES leads to sustainability and is far from being a case of `tragedy of the commons.' More investments in suitable monitoring and enforcement for adaptive management are recommended. Adopting an SES framework based on stakeholders' prospects may be useful until complete interdisciplinary studies become available so as to seek of sustainability in the long term.

  8. An evaluation of the opportunities and impediments in managing quota fisheries for biodiversity

    OpenAIRE

    Benson, Ashleen Julia

    2011-01-01

    Emerging political, ecological, and social priorities support inclusion of biodiversity conservation on national research and management agendas. Meeting biodiversity conservation objectives, however, will be difficult for fishery management systems that traditionally rely on the single-species, single-population "stock concept". My dissertation examines four scientific and institutional challenges to broadening the scope of fisheries management to include controlling fishery impacts on biodi...

  9. Non-dioxin-like PCBs: a survey on fishery and aquaculture from the Mediterranean area.

    Science.gov (United States)

    Masci, Maurizio; Nevigato, Teresina

    2016-09-01

    A sampling campaign from 21 sites in Italy was conducted: 15 species from fishery and three species from aquaculture, for a total of 40 determinations, were considered. A careful sample preparation preceded the instrumental analysis that was carried out by means of GC-ECD and GC-MS. Good laboratory practice was achieved by the participation in proficiency tests, by the use of certified reference materials and by applying other directives recommended by international organisations. Concentrations measured in this work were compared with a TDI proposed by some international bodies: for a person weighing 70 kg one-third of the samples from fishery, when consumed, lead to exceed this TDI if the average fish daily consumption per capita is considered. Based on the data obtained here some hypotheses on environmental spreading and influence of PCBs on human health are made. Some suggestions about the preparation of fish for consumption are also given. PMID:26885891

  10. What is the impact of kelp forest density and/or area on fisheries?

    OpenAIRE

    Araujo, Rita; Bartsch, Inka; Bekkby, Trine; Erzini, Karim; Sousa-Pinto, Isbel

    2013-01-01

    Background: Kelp forests are highly productive ecosystem engineers of rocky cold-water marine coastlines, providing shelter, habitat and food for a variety of associated organisms. Several factors have been related with an observed trend of kelp deforestation in some regions of the globe. The effect of this trend on fisheries has been poorly studied. The European directives addressing the conservation of marine habitats highlight the need to increase the knowledge about the relationship be...

  11. Sustainable Fisheries in Southeast Asia

    Directory of Open Access Journals (Sweden)

    Melda Kamil Ariadno

    2011-09-01

    Full Text Available Fisheries activity has increased significantly in number. As a result, we might see high investment in fisheries is due to the high demand for fish and fisheries products. Therefore, marine resources as well as other living resources are at risk in being harmed by excessive fisheries activities, for example: the use of trawl. Indonesia, as a Maritime State, need to impose sustainable fisheries because the principle of utilizing sustainable fisheries resources as adopted in the Law on Fisheries (Law No. 31 Year 2004 as amended by Law No. 45 Year 2009 to control fishery activities.Fishery activities are regulated not only by the Law on Fisheries but also international regulation adopted worldwide such as the Code of Conduct for Responsible Fisheries (CCRF. CCRF was prepared to include primary principles to elaborate the mechanism of fishery activities which is designated not to cost harmful damages in fisheries activities. CCRF is also accompanied by several technical guidelines that provide certain procedures to be applied to (1 fishing operations; (2 the precautionary approach as applied to capture fisheries and species introductions; (3 integrating fisheries into coastal area management; (4 fisheries management; (5 aquaculture development; and (6 inland fisheries. Consequently, CCRF is intended to cover any kind of fishery anywhere in the world not just marine capture fisheries, but also freshwater fisheries as well as aquaculture both marine and freshwater aquaculture. Excessive fishery activities would then not be harmful if Indonesia is willing to impose regulation which is significantly and effectively to manage these kind of fishery activities. Along with the fact that Indonesia is recognized as a Marine State, there is no reason to hold back in addressing this situation.

  12. A Fisheries Evaluation of the Westside Ditch and Town Canal Fish Screening Facilities, Spring 1990.

    Energy Technology Data Exchange (ETDEWEB)

    Neitzel, Duane A.; Abernethy, C. Scott; Hartenson, Gregg A.

    1990-11-01

    The Pacific Northwest Laboratory (PNL) evaluated the effectiveness of new fish screening facilities in the Westside Ditch and Town Canal, near Ellensburg, in south-central Washington State. At the Town Canal, we estimated that 0.3% of steelhead Oncorhynchus mykiss smolts released during tests were significantly descaled. The time required for 50% of the fish in the two steelhead test groups to exit from the Town Screens forebay ranged from 12 h to >85 h. Integrity tests at the Town Screens indicated that none of the rainbow trout fry released in front of the rotary drum screens passed through the screens, although 8.5% of the native zero-age chinook salmon fry diverted from the river into the screening facility were lost through the screens. At the Westside Screens, 16.8% of native zero-age chinook salmon fry passed through the screens. Most of the chinook salmon lost through the screens were small, <36 mm long. The methods used in 1990 were first used at the Sunnyside Screens in 1985. These methods were used again in subsequent years in tests at the Richland, Toppenish/Satus, Wapato, and Toppenish Creek screens. The methods used from 1985 through 1989 have been reviewed by the Washington State Department of Fisheries, US Fish and Wildlife Service, National Marine Fisheries Service, Northwest Power Planning Council, and Yakima Indian Nation. 14 refs., 12 figs., 7 tabs.

  13. Yakima/Klickitat Fisheries Project Genetic Studies; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2001-2002 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Busack, Craig A.; Fritts, Anthony L.; Loxterman, Janet (Washington Department of Fish and Wildlife, Olympia, WA)

    2003-05-01

    In chapter 1 we report on studies of the population genetic structure, using DNA microsatellites, of steelhead collected from different locations in the Yakima River basin (Roza Dam, Ahtanum Creek, Toppenish Creek, and Satus Creek) in 2000 and 2001. Of 28 pairwise tests of genotypic differentiation, only the 2000 and 2001 Roza Dam collections and the 2000 and 2001 Satus Creek collections did not exhibit significant differences. Similarly, pairwise tests of genetic differentiation (FST) were significant for all comparisons except the between-years comparisons of Roza Dam, Toppenish Creek, and Satus Creek collections. All tests between populations sampled from different localities were significant, indicating that these collections represent genetically differentiated stocks. In chapter 2 we report on genetic comparisons, again using microsatellites, of the three spring chinook populations in the Yakima basin (Upper Yakima, Naches, and American) with respect to our ability to be able to estimate the proportions of the three populations in mixed smolt samples collected at Chandler. We evaluated this both in terms of mixed fishery analysis, where proportions are estimated, but the likely provenance of any particular fish is unknown, and classification, where an attempt is made to assign individual fish to their population of origin. Simulations were done over the entire ranged of stock proportions observed in the Yakima basin in the last 20+ years. Stock proportions can be estimated very accurately by either method. Chapter 3 reports on our ongoing effort at cryopreserving semen from wild Upper Yakima spring chinook. In 2002, semen from 91 males, more than 50% of those spawned, was cryopreserved. Representation over the spawning season was excellent. Chapters 4,5, and 6 all relate to the continuing development of the domestication study design. Chapter 4 details the ISRP consultations and evolution of the design from last year's preferred alternative to the

  14. The eastern Baltic cod fishery: a fleet-based management strategy evaluation framework to assess the cod recovery plan of 2008

    DEFF Research Database (Denmark)

    Bastardie, Francois; Nielsen, J. Rasmus; Kraus, Gerd

    2010-01-01

    The eastern Baltic cod fishery: a fleet-based management strategy evaluation framework to assess the cod recovery plan of 2008. - ICES Journal of Marine Science, 67: 71-86.......The eastern Baltic cod fishery: a fleet-based management strategy evaluation framework to assess the cod recovery plan of 2008. - ICES Journal of Marine Science, 67: 71-86....

  15. Yakima/Klickitat Fisheries Project - Klickitat Monitoring and Evaluation, 2007 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Zendt, Joe; Babcock, Mike [Yakama Nation Fisheries Resource Management

    2006-04-02

    This report describes the results of monitoring and evaluation (M&E) activities for salmonid fish populations and habitat in the Klickitat River subbasin in south-central Washington. The M&E activities described here were conducted as a part of the Bonneville Power Administration (BPA)-funded Yakima/Klickitat Fisheries Project (YKFP) and were designed by consensus of the scientists with the Yakama Nation (YN) Fisheries Program. YKFP is a joint project between YN and Washington Department of Fish and Wildlife (WDFW). Overall YKFP goals are to increase natural production of and opportunity to harvest salmon and steelhead in the Yakima and Klickitat subbasins using hatchery supplementation, harvest augmentation and habitat improvements. Klickitat subbasin M&E activities have been subjected to scientific and technical review by members of the YKFP Science/Technical Advisory Committee (STAC) as part of the YKFP's overall M&E proposal. Yakama Nation YKFP biologists have transformed the conceptual design into the tasks described. YKFP biologists have also been involved with the Collaborative Systemwide Monitoring and Evaluation Project (CSMEP - a project aimed at improving the quality, consistency, and focus of fish population and habitat data to answer key M&E questions relevant to major decisions in the Columbia Basin) and are working towards keeping Klickitat M&E activities consistent with CSMEP recommendations. This report summarizes progress and results for the following major categories of YN-managed tasks under this contract: (1) Monitoring and Evaluation - to gather baseline information in order to characterize habitat and salmonid populations pre- and post-habitat restoration and pre-supplementation. (2) Ecological Interactions - to determine presence of pathogens in wild and naturally produced salmonids in the Klickitat Basin and develop supplementation strategies using this information. (3) Genetics - to develop YKFP supplementation broodstock collection

  16. Artisanal Fisheries in the Ndumo Area of the Lower Phongolo River Floodplain, South Africa

    OpenAIRE

    Hendri C. Coetzee; Werner Nell; Van Eeden, Elize S; Engela P. de Crom

    2015-01-01

    The aim of this study was to investigate the status of artisanal fisheries in the lower Phongolo River floodplain in northern KwaZulu-Natal, South Africa. A cross-sectional quantitative survey design was used that included the development of a questionnaire and a systematic survey among the five villages bordering the Ndumo Game Reserve. Data were collected over a 5-day period by a group of 16 fieldworkers and analysed using the Statistical Package for the Social Sciences, version 21. The res...

  17. Fisheries economics and fisheries management

    DEFF Research Database (Denmark)

    Andersen, Peder

    2013-01-01

    Professor Rögnvaldur Hannesson's influence on the development and history of fisheries economics is unquestionable. Also, he has strongly pointed out the potential gains from a more active use of fisheries economics in fisheries management. In light of this, one may ask if fisheries economists have...... spent too much time on fundamentals in fisheries economics at the expense of the development of applicable models for fisheries managers? Of course, this question is relevant only IF fisheries economics and fisheries economists have a role to play in fisheries management....

  18. Evaluation of the Danish mussel fishery: suggestions for an ecosystem management approach

    DEFF Research Database (Denmark)

    Dolmer, Per; Frandsen, Rikke

    2002-01-01

    , and is important for the transport of material and energy from the pelagic to benthic systems and the control of phytoplankton biomass. In order to evaluate the impact on clearance capacity of a reduction in mussel densities due to mussel dredging, mussel filtration activity measured in situ has been......In Limfjorden, Denmark, an extensive mussel fishery exploits the wild stocks of Mytilus edulis with annual landings of 80,000-100,000 t of mussels. During the last 10 years the impact of mussel dredging on the ecosystem has been studied, including the effect of resuspension of sediment and...... nutrients and the impoverishment of in- and epi-fauna assemblages. Furthermore, dredging changes the physical structure and complexity of the seabed which affects mussel growth and interactions among zoobenthic species. The blue mussel constitutes the dominant fraction of the zoobenthic suspension feeders...

  19. Economic evaluation of the fisheries policies in Denmark, Iceland and Norway : some performance indicators

    OpenAIRE

    Arnason, Ragnar; Sandal, Leif Kristoffer; Steinshamn, Stein Ivar; Vestergaard, Niels

    2002-01-01

    The economic efficiency of the Danish, Icelandic and Norwegian cod fisheries is examined. For this purpose nonlinear aggregate models of these three fisheries are constructed. A particular mathematical approach to calculate the rent maximizing feedback control, i.e. the optimal dynamic harvesting policy as a function of the state variable, is applied. On the basis of this approach, the optimal harvesting policies for each of the three cod fisheries are calculated for years in the past for whi...

  20. Gillnet fisheries as a major mortality factor of Magellanic penguins in wintering areas.

    Science.gov (United States)

    Cardoso, Luis Gustavo; Bugoni, Leandro; Mancini, Patrícia Luciano; Haimovici, Manuel

    2011-04-01

    The incidental capture in fisheries is probably the main conservation problem affecting seabirds. While the capture of albatrosses and petrels on longline hooks is well-known worldwide, the bycatch of diving seabirds in gillnets is an overlooked conservation problem. During a winter coastal fishing trip, the capture of Magellanic penguins (Spheniscus magellanicus) was recorded in driftnet and bottom setnet fisheries for the first time in southern Brazil. The highest captures rates were found in driftnets, from 146.5 to 545.5 penguins/km² of net and a total of 56 dead penguins were recorded. In the bottom gillnet, a total of 12 birds were killed and the capture rates varied from 41.7 to 125.0 penguins/km² of net. Although preliminary, the results presented in this paper were consistent between sets. If we consider the magnitude of driftnet and setnet fishing fleets, and that most dead penguins were adults, the impact upon Magellanic penguin populations is probably significant. PMID:21376348

  1. Evaluation of FAD-associated purse seine fishery reduction strategies for bigeye tuna (Thunnus obesus) in the Indian Ocean

    Institute of Scientific and Technical Information of China (English)

    TONG Yuhe; CHEN Xinjun; XU Liuxiong; CHEN Yong

    2013-01-01

    In the Indian Ocean,bigeye tuna supports one of the most important fisheries in the world.This fishery mainly consists of two components:longline and purse seine fisheries.Evidence of overfishing and stock depletion of bigeye tuna calls for an evaluation of alternative management strategies.Using an age-structured operating model,parameterized with the results derived in a recent stock assessment,we evaluated the effectiveness of applying constant fishing mortality (CF) and quasi-constant fishing mortality (QCF) strategies to reduce fishing effort of purse seining with fish aggregating devices (FADs) at different rates.Three different levels of productivity accounted for the uncertainty in our understanding of stock productivity.The study shows that the results of CF and QCF are similar.Average SSB and catch during simulation years would be higher if fishing mortality of FAD-associated purse seining was reduced rapidly.The banning or rapid reduction of purse seining with FAD resulted in a mean catch,and catch in the last simulation year,higher than that of the base case in which no change was made to the purse seine fishery.This could be caused by growth overfishing by purse seine fisheries with FADs according to the per-recruit analysis.These differences would be more obvious when stock productivity was low.Transferring efforts of FAD-associated purse seining to longline fisheries is also not feasible.Our study suggests that changes are necessary to improve the performance of the current management strategy.

  2. Fisheries Safety Management

    OpenAIRE

    Cabeças, José Miquel; Nunes, Isabel Lopes

    2005-01-01

    Fisheries is one of the most dangerous professions in the world. Fatal accidents and injuries in the fisheries are characterized as well as particular circumstances that may cause or aggravate the risk of accidents. Aspects of safety management of fishing vessels are covered in this paper: areas of concern when doing a risk assessment in fishing vessels, fundamental elements on a safety management system for the fisheries and the need for international and national level instruments as well a...

  3. Marine protected area and the spatial distribution of the gill net fishery in Copacabana, Rio de Janeiro, RJ, Brazil.

    Science.gov (United States)

    Amorim, R B; Monteiro-Neto, C

    2016-02-01

    This study characterizes the gill net fishery at Colônia de Pescadores Z13 (CPZ13), in Copacabana, Rio de Janeiro, and its relationship with the marine protected area 'Monumento Natural do Arquipélago das Ilhas Cagarras - MoNa Cagarras', describing the fleet and fishing gears, identifying fishing spots, species and their associations by gillnet type. From June 2012 to May 2013, every Tuesday to Sunday, gill net landings were monitored and fishers interviewed regarding their catch. Small boats (dory whaleboats) are used to set three types of gillnets: "Corvineira" (target species - whitemouth croaker), "linguadeira" (target species - flounders) and "rede-alta" (target species - bluefish). Fifty-nine species within 37 families were captured at 14 fishing spots, showing association with bottom type and distance from shore. The use of fisher's local ecological knowledge defines gear placement at specific sites targeting fisheries resources. All fishing sites are not within the limits of MoNa Cagarras but would benefit from management plans including an MPA buffering zone. PMID:26909618

  4. Development of a System-Wide Predator Control Program: Stepwise Implementation of a Predation Index, Predator Control Fisheries, and Evaluation Plan in the Columbia River Basin; Northern Pikeminnow Management Program, 2000 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Porter, Russell G.; Glaser, Bryce G.; Amren, Jennifer

    2003-03-01

    This report presents results for year ten in a basin-wide program to harvest northern pikeminnow (Ptychocheilus oregonensis). This program was started in an effort to reduce predation by northern pikeminnow on juvenile salmonids during their emigration from natal streams to the ocean. Earlier work in the Columbia River Basin suggested predation by northern pikeminnow on juvenile salmonids might account for most of the 10-20% mortality juvenile salmonids experience in each of eight Columbia River and Snake River reservoirs. Modeling simulations based on work in John Day Reservoir from 1982 through 1988 indicated that, if predator-size northern pikeminnow were exploited at a 10-20% rate, the resulting restructuring of their population could reduce their predation on juvenile salmonids by 50%. To test this hypothesis, we implemented a sport-reward angling fishery and a commercial longline fishery in the John Day Pool in 1990. We also conducted an angling fishery in areas inaccessible to the public at four dams on the mainstem Columbia River and at Ice Harbor Dam on the Snake River. Based on the success of these limited efforts, we implemented three test fisheries on a system-wide scale in 1991--a tribal longline fishery above Bonneville Dam, a sport-reward fishery, and a dam-angling fishery. Low catch of target fish and high cost of implementation resulted in discontinuation of the tribal longline fishery. However, the sport-reward and dam-angling fisheries were continued in 1992 and 1993. In 1992, we investigated the feasibility of implementing a commercial longline fishery in the Columbia River below Bonneville Dam and found that implementation of this fishery was also infeasible. Estimates of combined annual exploitation rates resulting from the sport-reward and damangling fisheries remained at the low end of our target range of 10-20%. This suggested the need for additional effective harvest techniques. During 1991 and 1992, we developed and tested a modified

  5. Sardine fishery in Kenya

    OpenAIRE

    Wakwabi, E.

    1986-01-01

    This paper gives an overview on the Kenya sardine fishery as a research area for the future development and management of marine resources. The fishery is viewed in the context of an industry and the need for research into it as an ecological indicator and for commercial exploitation is emphasized.

  6. Fisheries Habitat Evaluation in Tributaries of the Coeur d`Alene Indian Reservation : Annual Report 1992.

    Energy Technology Data Exchange (ETDEWEB)

    Woodward-Lillengreen, Kelly L.; Skillingstad, Tami; Scholz, Allan T.

    1993-10-01

    In 1987 the Northwest Power Planning Council amended the Columbia River Basin Fish and Wildlife Program, directing the Bonneville Power Administration (BPA) to fund, ``a baseline stream survey of tributaries located on the Coeur d`Alene Indian Reservation to compile information on improving spawning habitat, rearing habitat, and access to spawning tributaries for bull trout, cutthroat trout, and to evaluate the existing fish stocks. ff justified by the results of the survey, fund the design, construction and operation of a cutthroat and bull trout hatchery on the Coeur d`Alene Indian Reservation; necessary habitat improvement projects; and a three year monitoring program to evaluate the effectiveness of the hatchery and habitat improvement projects. If the baseline survey indicates a better alternative than construction of a fish hatchery, the Coeur d`Alene Tribe will submit an alternative plan for consideration in program amendment proceeding.`` This report contains the results of the third year of the study and the Coeur d`Alene Indian Tribes` preliminary recommendations for enhancing the cutthroat and bull trout fishery on the Coeur d`Alene Indian Reservation. These recommendations are based on study results from year three data and information obtained in the first two years of the study.

  7. Damage sustained by epibenthic invertebrates discarded in the Nephrops fishery of the Clyde Sea area, Scotland

    Science.gov (United States)

    Bergmann, M.; Beare, D. J.; Moore, P. G.

    2001-05-01

    The Clyde Sea Nephrops fishery produces ca. 25 000 t y -1 discards with invertebrates accounting for up to 90% of the number of animals discarded. Trawling and handling of the (by-)catch often results in physical injury, the extent of which was previously unknown. Damage sustained by invertebrate discards was assessed following commercial trawling (of 62-270 min duration) and sorting on deck. Brittlestars Ophiura ophiura were most vulnerable with 100% incurring damage, followed by squat lobsters Munida rugosa (57%) and starfish Astropecten irregularis (56%). Harder-shelled species such as hermit crabs Pagurus bernhardus and queen scallops Aequipecten opercularis sustained fewer injuries (14 and 2%, respectively). Shell chipping, loss and damage of limbs were the most frequent types of injury incurred. The severity and frequency of damage was mainly correlated with species-specific morphological and behavioural characteristics. Vessel type, tow duration and animal size had a major influence on damage to the epibenthic invertebrates caught. While damage may potentially be repaired, survival is adversely affected and sublethal effects might significantly impair fitness of frequently trawled individuals and populations.

  8. Mortality of small cetaceans and the crab bait fishery in the Magallanes area of Chile since 1980

    OpenAIRE

    Lescrauwaet, A.-K.; Gibbons, J.

    1994-01-01

    Since 1974, species of small cetaceans, fur seals, sea lions, sea birds and to some extent sea otters, have been taken deliberately each year for bait in the Chilean artisanal fishery. In recent years, three new trends are contributing to alleviate mortality pressure on marine mammals in Magellanes: a change in fisheries legislation, an increased diversification of the artisanal fishery and an increasing public awareness of the values of marine wildlife.

  9. Fisheries Habitat Evaluation on Tributaries of the Coeur d`Alene Indian Reservation : 1993, 1994 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Woodward-Lillengreen, Kelly L.; Vitale, Angelo; Peters, Ronald L.

    1996-09-01

    Bull trout and cutthroat trout are two salmonid species native to the Lake Coeur d`Alene drainage. Historically these species were a critical component of the Coeur d`Alene Tribe`s annual subsistence requirements. Since 1932, the cutthroat trout population has declined significantly in the Coeur d`Alene system. The present ecosystem bears little resemblance to habitat composition, diversity and structure of the historic ecosystem. The purpose of this study was to conduct baseline stream and biological surveys of four drainages located within the Coeur d`alene Reservation and make recommendations on ways to increase the westslope cutthroat and bull trout populations on the Reservation. Data indicated that habitat degradation, specifically, water quantity and lack of habitat complexity, was limiting westslope cutthroat and bull trout populations on the Reservation. Population data indicated that cutthroat trout populations were low when compared to other similar drainages. Surveys revealed a conspicuous absence of bull trout. Recommendations included: conducting extensive habitat restoration in the study drainages; developing alternate harvest opportunities to reduce pressure on wild stocks; purchasing critical watershed areas for fisheries habitat protection; constructing and operating a trout production facility; and, implementing a five-year monitoring program to evaluate the program effectiveness.

  10. Geothermal resource evaluation of the Yuma area

    Energy Technology Data Exchange (ETDEWEB)

    Poluianov, E.W.; Mancini, F.P.

    1985-11-29

    This report presents an evaluation of the geothermal potential of the Yuma, Arizona area. A description of the study area and the Salton Trough area is followed by a geothermal analysis of the area, a discussion of the economics of geothermal exploration and exploitation, and recommendations for further testing. It was concluded economic considerations do not favor geothermal development at this time. (ACR)

  11. Landscape evaluation in industrial areas

    International Nuclear Information System (INIS)

    In the North-East of Estonia, the landscape is contrasting: different natural and man-made landforms exist together. In this area, oil shale mining and processing have essentially changed the landscape, and as a result, different man-made industrial landscape forms have come into being. The attitude of local inhabitants towards the heritage of oil shale industry has been traditionally negative. Nevertheless, the artificial 'mountainous' and 'hilly' relief offers also a positive effect, having some expressive image in the background of the natural plain landscape forms. For protection of cultural landscapes from damages, 32 landscapes that are more valuable were selected, whereat the historical, cultural, natural, recreational, aesthetic, scientific, etc. factors were taken into account. In the future the status of industrial landscapes needs a more exact defining,and special means must be worked out to protect and manage those valuable cultural areas. (author)

  12. Multidimensional Evaluation of Sustainability Status of Seagrass Ecosystems to Support Fisheries Management in Barrang Lompo Island, South Sulawesi

    OpenAIRE

    Nurdin, Nadiarti; Riani, Etty; Djuwita, Etty; Budiharsono, Sugeng; Purbayanto, Ari

    2013-01-01

    The purposes of this study were 1) to examine the sustainability status of seagrass ecosystems based on ecology, social, economy, technology, and institutional dimensions, 2) to examine the most influence attribute within each dimension to the sustainability status of the seagrass fisheries, 3) to suggest intervention strategy of each dimension for future seagrass ecosystems sustainability management. Rapsecs (Rapid appraisal technique for evaluating seagrass ecosystem sustainability) analys...

  13. The seascape of demersal fish nursery areas in the North Mediterranean Sea, a first step towards the implementation of spatial planning for trawl fisheries.

    Directory of Open Access Journals (Sweden)

    Francesco Colloca

    Full Text Available The identification of nursery grounds and other essential fish habitats of exploited stocks is a key requirement for the development of spatial conservation planning aimed at reducing the adverse impact of fishing on the exploited populations and ecosystems. The reduction in juvenile mortality is particularly relevant in the Mediterranean and is considered as one of the main prerequisites for the future sustainability of trawl fisheries. The distribution of nursery areas of 11 important commercial species of demersal fish and shellfish was analysed in the European Union Mediterranean waters using time series of bottom trawl survey data with the aim of identifying the most persistent recruitment areas. A high interspecific spatial overlap between nursery areas was mainly found along the shelf break of many different sectors of the Northern Mediterranean indicating a high potential for the implementation of conservation measures. Overlap of the nursery grounds with existing spatial fisheries management measures and trawl fisheries restricted areas was also investigated. Spatial analyses revealed considerable variation depending on species and associated habitat/depth preferences with increased protection seen in coastal nurseries and minimal protection seen for deeper nurseries (e.g. Parapenaeus longirostris 6%. This is partly attributed to existing environmental policy instruments (e.g. Habitats Directive and Mediterranean Regulation EC 1967/2006 aiming at minimising impacts on coastal priority habitats such as seagrass, coralligenous and maerl beds. The new knowledge on the distribution and persistence of demersal nurseries provided in this study can support the application of spatial conservation measures, such as the designation of no-take Marine Protected Areas in EU Mediterranean waters and their inclusion in a conservation network. The establishment of no-take zones will be consistent with the objectives of the Common Fisheries Policy

  14. 50 CFR Figure 15 to Part 679 - Regulatory Areas for the Pacific Halibut Fishery

    Science.gov (United States)

    2010-10-01

    ....) and south of 54°49′00″ N. lat. in Isanotski Strait; Area 4A includes all waters in the GOA west of.... and south of 56°20′00″ N. lat.; Area 4B includes all waters in the Bering Sea and the GOA west of...

  15. Incentivising selective fishing under catch quotas: using an FCube modelling approach to evaluate management options for North Sea mixed fisheries

    DEFF Research Database (Denmark)

    Condie, Harriet M.; Dolder, Paul J.; Catchpole, Thomas L.;

    Reforms of EU Common Fisheries Policy will make fundamental changes to European fisheries management, including a discard ban with catch quotas for regulated species and management to achieve MSY. We evaluate the impact of these changes on revenue of North Sea demersal finfish fleets and fish...... stocks. With no change in behaviour, revenue is reduced by a mean of 31% compared to current management in the first year, but partly recovers by year 3, as fishing mortality is reduced and stocks increase. There are large differences in revenue changes between fleets, varying from -99% to +36...... revenue create a strong incentive to avoid catching the limiting species, particularly if it is not a primary target. Selectivity changes that avoid 30% cod catch reduced the economic impact for some fleets in moving to catch quotas. Increased flexibility will therefore be important in maintaining the...

  16. Evaluating targets and trade-offs among fisheries and conservation objectives using a multispecies size spectrum model

    DEFF Research Database (Denmark)

    Blanchard, J.L.; Andersen, Ken Haste; Scott, F.;

    2014-01-01

    when fishing populations at FMSY than if status quo (2010) fishing rates are maintained. The probability of achieving a food web target was 60% under both scenarios in spite of major community restructuring revealed by other indicators of community size structure. Synthesis and applications. Our model......Marine environmental management policies seek to ensure that fishing impacts on fished populations and other components of the ecosystem are sustainable, to simultaneously meet objectives for fisheries and conservation. For example, in Europe, targets for (i) biodiversity, (ii) food web structure......, productivity and interactions and therefore provides a single framework for evaluating trade-offs between population status, community and food web structure, biodiversity and fisheries yield. We show that the model can replicate realistic fish population and community structure and past responses to fishing...

  17. Yakima/Klickitat Fisheries Project Genetic Studies; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2000-2001 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Busack, Craig A.; Schroder, Steven L.; Young, Sewall F. (Washington Department of Fish and Wildlife, Olympia, WA)

    2002-11-01

    Genetic work for 2001 consisted of two major phases, both reported on here. The first is a DNA microsatellite analysis of several hundred juveniles from the experimental spawning channel at the Cle Elum Supplementation Research Facility, using the genetic markers to assign the juveniles to parents, and thus judge reproductive success of individual fish. The second is a reevaluation and revision of plans for studying domestication in the spring chinook supplementation effort. The pedigree analysis was significant in three respects. First, it showed that this approach can be successfully applied to the spawning channel research. Secondly it showed that this approach does indeed yield very useful information about the relative reproductive success of fish in the channel. Finally, it showed that this information can yield additional information about the experimental design. Of the 961 juveniles on which analysis was attempted, 774 yielded enough genetic information to be used in the pedigree analysis. Of these, 754 were assigned to males and females known to have been placed into the channel. Of the other 20, all were assignable to females, but sires were unknown. The genotypes of 17 of these were consistent with a single theoretical male genotype, suggesting a single precocial male sired them. The inferred parentage of the fish demonstrated that there had been substantial leakage of juveniles from one section of the channel into another. Reproductive success of females was fairly even, but success of males varied considerably. In a group of seven males (including the hypothetical one), one contributed 79% of the progeny analyzed, and three contributed none. The domestication experimental design evaluation was prompted by a critical review of the project by the Independent Scientific Review Panel (ISRP). The ISRP review set into motion a design revision process which extended beyond the contract period; the report presented here is intended to be an account of our

  18. The effects of shellfish fishery on the ecosystems of the Dutch Wadden Sea and Oosterschelde : final report on the second phase of the scientific evaluation of the Dutch shellfish fishery policy (EVA II)

    NARCIS (Netherlands)

    Ens, B.J.; Smaal, A.C.; Vlas, de J.

    2004-01-01

    This publication summarises the findings of the scientific research projects carried out as part of EVA II, the second phase in the evaluation of shellfish fisheries policy in the Zeeland Delta and the Wadden Sea, and relates these findings to other studies on the ecological effects of shellfish fis

  19. Evaluation of three harvest control rules for Bigeye Tuna ( Thunnus obesus) fisheries in the Indian Ocean

    Science.gov (United States)

    Tong, Yuhe; Chen, Xinjun; Kolody, Dale

    2014-10-01

    The stock of Bigeye tuna ( Thunnus obesus) in the Indian Ocean supports an important international fishery and is considered to be fully exploited. The responsible management agency, the Indian Ocean Tuna Commission (IOTC), does not have an explicit management decision-making framework in place to prevent over-fishing. In this study, we evaluated three harvest control rules, i) constant fishing mortality (CF), from 0.2 to 0.6, ii) constant catch (CC), from 60000 to 140000 t, and iii) constant escapement (CE), from 0.3 to 0.7. The population dynamics simulated by the operating model was based on the most recent stock assessment using Stock Synthesis version III (SS3). Three simulation scenarios (low, medium and high productivity) were designed to cover possible uncertainty in the stock assessment and biological parameters. Performances of three harvest control rules were compared on the basis of three management objectives (over 3, 10 and 25 years): i) the probability of maintaining spawning stock biomass above a level that can sustain maximum sustainable yield (MSY) on average, ii) the probability of achieving average catches between 0.8 MSY and 1.0 MSY, and iii) inter-annual variability in catches. The constant escapement strategy ( CE=0.5), constant fishing mortality strategy ( F=0.4) and constant catch ( CC=80000) were the most rational among the respective management scenarios. It is concluded that the short-term annual catch is suggested at 80000 t, and the potential total allowable catch for a stable yield could be set at 120000 t once the stock had recovered successfully. All the strategies considered in this study to achieve a `tolerable' balance between resource conservation and utilization have been based around the management objectives of the IOTC.

  20. Morocco - Artisanal Fisheries

    Data.gov (United States)

    Millenium Challenge Corporation — The final performance evaluation roadmap for the Small-Scale Fisheries Project (PPA-MCC) is developed using a grid constructed around indicators relating to Project...

  1. Fish, Benthic and Urchin Survey Data from Kahekili Herbivore Fisheries Management Area (HFMA), Maui since 2008 (NCEI Accession 0146683)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Data are summary fish, benthic and urchin data from belt transect surveys conducted by the NOAA Coral Reef Ecosystem Program within the Kahekili Herbivore Fisheries...

  2. Sensitivity of Coastal Environments and Wildlife to Spilled Oil: South Florida: MGT_FISH (Fishery Management Area Polygons)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — This data set contains commercial fisheries in South Florida. Vector polygons in this data set represent statistical reporting grids used to aggregate commercial...

  3. Responses of Herbivorous Fishes and Benthos to 6 Years of Protection at the Kahekili Herbivore Fisheries Management Area, Maui.

    Science.gov (United States)

    Williams, Ivor D; White, Darla J; Sparks, Russell T; Lino, Kevin C; Zamzow, Jill P; Kelly, Emily L A; Ramey, Hailey L

    2016-01-01

    In response to concerns about declining coral cover and recurring macroalgal blooms, in 2009 the State of Hawaii established the Kahekili Herbivore Fisheries Management Area (KHFMA). Within the KHFMA, herbivorous fishes and sea urchins are protected, but other fishing is allowed. As part of a multi-agency monitoring effort, we conducted surveys at KHFMA and comparison sites around Maui starting 19 months before closure, and over the six years since implementation of herbivore protection. Mean parrotfish and surgeonfish biomass both increased within the KHFMA (by 139% [95%QR (quantile range): 98-181%] and 28% [95%QR: 3-52%] respectively). Most of those gains were of small-to-medium sized species, whereas large-bodied species have not recovered, likely due to low levels of poaching on what are preferred fishery targets in Hawaii. Nevertheless, coincident with greater biomass of herbivores within the KHFMA, cover of crustose coralline algae (CCA) has increased from ~2% before closure to ~ 15% in 2015, and macroalgal cover has remained low throughout the monitoring period. Strong evidence that changes in the KHFMA were a consequence of herbivore management are that (i) there were no changes in biomass of unprotected fish families within the KHFMA; and that (ii) there were no similar changes in parrotfish or CCA at comparison sites around Maui. It is not yet clear how effective herbivore protection might eventually be for the KHFMA's ultimate goal of coral recovery. Coral cover declined over the first few years of surveys-from 39.6% (SE 1.4%) in 2008, to 32.9% (SE 0.8%) in 2012, with almost all of that loss occurring by 2010 (1 year after closure), i.e. before meaningful herbivore recovery had occurred. Coral cover subsequently stabilized and may have slightly increased from 2012 through early 2015. However, a region-wide bleaching event in 2015 had already led to some coral mortality by the time surveys were conducted in late 2015, at which time cover had dropped back

  4. Responses of Herbivorous Fishes and Benthos to 6 Years of Protection at the Kahekili Herbivore Fisheries Management Area, Maui.

    Directory of Open Access Journals (Sweden)

    Ivor D Williams

    Full Text Available In response to concerns about declining coral cover and recurring macroalgal blooms, in 2009 the State of Hawaii established the Kahekili Herbivore Fisheries Management Area (KHFMA. Within the KHFMA, herbivorous fishes and sea urchins are protected, but other fishing is allowed. As part of a multi-agency monitoring effort, we conducted surveys at KHFMA and comparison sites around Maui starting 19 months before closure, and over the six years since implementation of herbivore protection. Mean parrotfish and surgeonfish biomass both increased within the KHFMA (by 139% [95%QR (quantile range: 98-181%] and 28% [95%QR: 3-52%] respectively. Most of those gains were of small-to-medium sized species, whereas large-bodied species have not recovered, likely due to low levels of poaching on what are preferred fishery targets in Hawaii. Nevertheless, coincident with greater biomass of herbivores within the KHFMA, cover of crustose coralline algae (CCA has increased from ~2% before closure to ~ 15% in 2015, and macroalgal cover has remained low throughout the monitoring period. Strong evidence that changes in the KHFMA were a consequence of herbivore management are that (i there were no changes in biomass of unprotected fish families within the KHFMA; and that (ii there were no similar changes in parrotfish or CCA at comparison sites around Maui. It is not yet clear how effective herbivore protection might eventually be for the KHFMA's ultimate goal of coral recovery. Coral cover declined over the first few years of surveys-from 39.6% (SE 1.4% in 2008, to 32.9% (SE 0.8% in 2012, with almost all of that loss occurring by 2010 (1 year after closure, i.e. before meaningful herbivore recovery had occurred. Coral cover subsequently stabilized and may have slightly increased from 2012 through early 2015. However, a region-wide bleaching event in 2015 had already led to some coral mortality by the time surveys were conducted in late 2015, at which time cover had

  5. The Gordian knot: managing herring (Clupea harengus) bridging across populations, fishery units, management areas, and politics

    DEFF Research Database (Denmark)

    Worsøe Clausen, Lotte; Mosegaard, Henrik; Berg, Casper Willestofte;

    2012-01-01

    The management of western Baltic spring spawning (WBSS) herring is challenged by the highly complex stock structure with a temporal and geographical distribution leading to conflicting interests among different stakeholder groups. The stock is exploited in the Baltic Sea (Subdivisions 22–24) and...... the North Sea (Division IIIa) by various EU—and in the latter case also non‐EU—fishing fleets. For the two separate management areas, TACs are set at different times in the yearly TACsetting process by the EU and negotiating counties, which often result in conflicts over quota allocations among...... different management units. The WBSS herring stock spawns in the western Baltic Sea and migrates into the Kattegat and Skagerrak areas, where it mixes with North Sea autumn spawning (NSAS) herring. Recent development of otolith shape analysis has enabled a high‐resolution separation of herring stocks in...

  6. Analysis of Recreational Fisheries in the Croatian Areas of the Sava and Danube Rivers

    OpenAIRE

    Daniel Matulić; Nikica Šprem; Marina Piria; Tea Tomljanović; Tomislav Treer; Roman Safner; Ivica Aničić

    2010-01-01

    The aim of the research was to provide an overview of the status of recreational anglers in the Croatian areas of the Sava and Danube rivers in many aspects: social and demographic characteristics, preferences, level of fishing experience and involvement, understanding of legal regulations, consumptive orientation, attitudes and satisfaction levels, the dynamics of fishing and the structure of catch, etc. A questionnaire of 48 questions was issued and distributed among the recreational...

  7. Structure and Dynamics of Fisheries in Nigeria

    Institute of Scientific and Technical Information of China (English)

    2007-01-01

    The changes that have taken place in Nigerian fisheries are reviewed. Artisanal fishery has continued to dominate the fisheries, contributing over 85% of total fish production. The inland water and coastal seas are fully exploited and the increase in fishery production is not likely. Aquaculture potentials remain untapped as much as deep-sea fisheries. The combined potential of the fisheries resources-freshwater, marine and aquaculture can meet over 90% of the nation's demand for fish. Opportunities for investments, therefore, exist in the various subsectors, especially in the areas of storage, processing and preservation for the capture fishery and fish seed multiplication for aquaculture.

  8. CROATIAN FISHERIES IN 2007

    Directory of Open Access Journals (Sweden)

    Ante Mišura

    2008-10-01

    Full Text Available This work deals with all the relevant statistic data regarding fisheries of Republic of Croatia, including freshwater fisheries data (aquaculture of fish and other aquatic organisms, commercial and sports fisheries, marine fisheries data (mariculture, commercial fisheries, small–scale fisheries and processing of fish and other marine organisms, as well as data about import and export of fish and fish products and the data about financial subventions in fisheries. The total freshwater fish production in 2007 was 5,797 tons (4,151 tons of warm–water species and 1,646 tons of cold–water species. Total areas and production areas in 2007 was 5,558.66. Total catch of freshwater fish in 2007 was 697 tons. The total marine fish species production in 2007 was 4,000 tons, production of tuna 4,180 tons, mussels 3,000 tons and oysters 1,000,000 pieces. The catch of marine fish was increased by 6.09% comparing to 2006 (increase was noticed for white and blue fish species. During 2007 there were no significant changes regarding the number of commercial fishermen comparing to the last two years, while the number of small–scale fishermen increased 0.4 % comparing to the last year. The total production of fish products in 2007 was 15,349 tons, which is 11.6 % less comparing to 2006.

  9. Uncertainty in Driftless Area Cold-Water Fishery Decision Making and a Framework for Stakeholder-Based Science

    Science.gov (United States)

    Schuster, Z.

    2015-12-01

    The paradigm of stakeholder-based science is becoming more popular as organizations such as the U.S. Department of the Interior Climate Science Centers adopt it as a way of providing practicable climate change information to practitioners. One of the key issues stakeholders face in adopting climate change information into their decision processes is how uncertainty is addressed and communicated. In this study, we conducted a series of semi-structured interviews with managers and scientists working on stream habitat restoration of cold-water fisheries in the Driftless Area of Wisconsin that were focused on how they interpret and manage uncertainty and what types of information they need to make better decisions. One of the important lessons we learned from the interviews is that if researchers are going to provide useful climate change information to stakeholders, they need to understand where and how decisions are made and what adaptation measures are actually available in a given decision arena. This method of incorporating social science methods into climate science production can provide a framework for researchers from the Climate Science Centers and others who are interested in pursuing stakeholder-based science. By indentifying a specific ecological system and conducting interviews with actors who work on that system, researchers will be able to gain a better understanding of how their climate change science can fit into existing or shape new decision processes. We also interpreted lessons learned from our interviews via existing literature in areas such as stakeholder-based modeling and the decision sciences to provide guidance specific to the stakeholder-based science process.

  10. Spearfishing Regulation Benefits Artisanal Fisheries: The ReGS Indicator and Its Application to a Multiple-Use Mediterranean Marine Protected Area

    OpenAIRE

    Delphine Rocklin; Jean-Antoine Tomasini; Jean-Michel Culioli; Dominique Pelletier; David Mouillot

    2011-01-01

    The development of fishing efficiency coupled with an increase of fishing effort led to the overexploitation of numerous natural marine resources. In addition to this commercial pressure, the impact of recreational activities on fish assemblages remains barely known. Here we examined the impact of spearfishing limitation on resources in a marine protected area (MPA) and the benefit it provides for the local artisanal fishery through the use of a novel indicator. We analysed trends in the fish...

  11. AoA Region: The regional organization for the protection of the marine environment/regional commission for fisheries (ROPME/RECOFI) area

    Digital Repository Service at National Institute of Oceanography (India)

    Naqvi, S.W.A.

    are generally nutrient depleted, but AoA Region: The Regional Organization for the Protection of the Marine Environment/Regional Commission for Fisheries (ROPME/RECOFI) Area Wajih Naqvi © Faiza Al-Yamani The green turtle, an endangered species... ats. The Gulf’s fi sheries for penaeid shrimp, groupers, jacks and Spanish mackerel are of major regional and global importance. Fauna important to conservation include seabirds, green and hawksbill turtles, dolphins and dugong. Production...

  12. Degradation of marine ecosystems and decline of fishery resources in marine protected areas in the US Virgin Islands

    Science.gov (United States)

    Rogers, C.S.; Beets, J.

    2001-01-01

    The large number of marine protected areas (MPAs) in the Caribbean (over 100) gives a misleading impression of the amount of protection the reefs and other marine resources in this region are receiving. This review synthesizes information on marine resources in two of the first MPAs established in the USA, namely Virgin Islands National Park (1962) and Buck Island Reef National Monument (1961), and provides compelling evidence that greater protection is needed, based on data from some of the longest running research projects on coral reefs, reef fish assemblages, and seagrass beds for the Caribbean. Most of the stresses affecting marine resources throughout the Caribbean (e.g. damage from boats, hurricanes and coral diseases) are also causing deterioration in these MPAs. Living coral cover has decreased and macroalgal cover has increased. Seagrass densities have decreased because of storms and anchor damage. Intensive fishing in the US Virgin Islands has caused loss of spawning aggregations and decreases in mean fish size and abundance. Groupers and snappers are far less abundant and herbivorous fishes comprise a greater proportion of samples than in the 1960s. Effects of intensive fishing are evident even within MPA boundaries. Although only traditional fishing with traps of 'conventional design' is allowed, commercial trap fishing is occurring. Visual samples of fishes inside and outside Virgin Islands National 'Park showed no significant differences in number of species, biomass, or mean size of fishes. Similarly, the number of fishes per trap was statistically similar inside and outside park waters. These MPAs have not been effective because an unprecedented combination of natural and human factors is assaulting the resources, some of the greatest damage is from stresses outside the control of park managers (e.g. hurricanes), and enforcement of the few regulations has been limited. Fully functioning MPAs which prohibit fishing and other extractive uses (e.g. no

  13. Evaluation of the International Whaling Commission's revised management procedure for use in groundfish fisheries

    OpenAIRE

    McHugh, Diana Louise

    2011-01-01

    Developed for the International Whaling Commission (IWC) to manage a baleen whale fishery, the Revised Management Procedure (RMP) uses catch and abundance estimates to fit a simple population model and produces a target catch consistent with an acceptable probability level. When applied to a long-lived simulated groundfish species with low productivity, the RMP performed well once the no fishing benchmark was adjusted to a value more appropriate for a population with occasional, high recruit...

  14. Fisheries management

    OpenAIRE

    1997-01-01

    These Guidelines have been produced to support the implementation of Article 7 of the Code of Conduct for Responsible Fisheries, with some reference to Article 12. They are addressed primarily to the decision-makers within fisheries management authorities and other interest groups, including fishing companies, fishers' organizations, concerned non-governmental organizations and others. The Guidelines provide a background to the need for fisheries management and an introduction to the activiti...

  15. Empirical evidence for species-specific export of fish naïveté from a no-take marine protected area in a coastal recreational hook and line fishery

    OpenAIRE

    Alós, Josep; Puiggrós, Antoni; Díaz-Gil, Carlos; Palmer, Miquel; Rosselló, Rosario; Arlinghaus, Robert

    2015-01-01

    © 2015 Alós et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. No-take marine protected areas (MPAs) are assumed to enhance fisheries catch via the >spillover> effect, where biomass is exported to adjacent exploited areas. Recent studies in spearfishing fisheries suggest that the spillover of gear-naïve ...

  16. Evaluating local rules and practices for avoiding tragedies in small-scale fisheries of oxbow lakes, Southern Bangladesh

    OpenAIRE

    Abdullah Al Mamun; Brook, Ryan K.

    2015-01-01

    One of the key issues facing fishery managers, policy-makers and researchers has been acknowledging local institutions and rule systems for managing common pool resources. In this paper, we discuss local institutions and rule systems of community fisheries from two oxbow lake Fisheries in Southern Bangladesh. Both of the fisheries have been under private and state management systems resulting in different management outcomes. Control of fishers and stocking for production enhancement have bee...

  17. Development of a systemwide predator control program: Stepwise implementation of a predation index, predator control fisheries, and evaluation plan in the Columbia River Basin. Volume 2 -- Evaluation: 1993 Annual report

    International Nuclear Information System (INIS)

    An attempt was made to determine the extent to which northern squawfish predation on juvenile salmonids is a problem in the Columbia River Basin, and to evaluate how effectively fisheries can be used to control northern squawfish populations and reduce juvenile salmonid losses to predation. These studies were initiated as part of a basinwide program to control northern squawfish predation and reduce mortality of juvenile salmonids on their migration to the ocean. Modeling simulations based on work in the John Day Reservoir from 1982 through 1988 indicated that if northern squawfish larger than 250 mm fork length were exploited, at a rate of 10--20%, reductions in their numbers and restructuring of their populations could reduce their predation on juvenile salmonids by 50% or more. The authors evaluated the success of three test fisheries conducted in 1993--a sport-reward fishery, a dam-angling fishery, and a trap-net fishery, to achieve a 10--20% exploitation rate on northern squawfish. The authors also began evaluating the response of northern squawfish populations to sustained fisheries. In addition, the authors gathered information regarding the economic, social, and legal feasibility of sustaining each fishery, and report on the structure and function of the fish collection and distribution system

  18. 50 CFR 665.620 - PRIA coral reef ecosystem fisheries. [Reserved

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false PRIA coral reef ecosystem fisheries. 665.620 Section 665.620 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION, DEPARTMENT OF COMMERCE (CONTINUED) FISHERIES IN THE WESTERN PACIFIC Pacific Remote Island Area Fisheries § 665.620...

  19. A Fisheries Evaluation of the Westside Ditch and Wapato Canal Fish Screening Facilities, Spring 1989 : Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Neitzel, Duana A.; Abernethy, C. Scott; Lusty, E. William

    1990-06-01

    We evaluated the effectiveness of new fish screening facilities in the Westside Ditch and Wapato Canal in south-central Washington State. The screen integrity tests indicated that test fish released in front of the screens could enter the canal behind the screens. At Westside Ditch, between 6% and 25% of the zero-age fry passed through the rotary drum screens. The 6% estimate is based on tests with rainbow trout Oncorhynchus mykiss fry. The 25% estimate is based on monitoring chinook salmon 0. tshawytscha fry that were diverted from the river into the irrigation ditch. At Westside Ditch, we estimated that 1.8% of steelhead 0. mykiss smolts and 0.3% of chinook salmon smolts released during tests were descaled. The time required for 50% of the test fish to exit from the Westside Ditch Screen forebay was 3 to 8 h for chinook salmon smolts and up to 28 h for steelhead smolts. Methods used in 1988 were first used at Sunnyside in 1985 and were used in subsequent years at Richland. Toppenish/Satus. Wapato. and Toppenish Creek. The methods and 1985 through 1987 results have been reviewed by the Washington State Department of Fisheries, U.S. Fish and Wildlife Service, National Marine Fisheries Service, Northwest Power Planning Council, and the Yakima Indian Nation.

  20. CROATIAN FISHERIES IN 2006.

    Directory of Open Access Journals (Sweden)

    Irena Jahutka

    2007-10-01

    Full Text Available This work deals with all the relevant statistic data regarding fisheries of Republic of Croatia, including freshwater fisheries data (aquaculture of fish and other aquatic organisms, commercial and sports fisheries, marine fisheries data (mariculture, commercial fisheries, small–scale fisheries and processing of fish and other marine organisms, as well as data about import and export of fish and fish products and the data about financial subventions in fisheries. Regarding aquaculture (freshwater fish farming in 2005 there have been noticed production increase in coldwater fish species. The total freshwater fish production in 2006 was 6,328 tons (4,599 tons of warm–water species and 1,729 tons of cold–water species. Total areas and production areas were decreased comparing to 2005 in all categories of production areas. Total catch of freshwater fish in 2006 was 674 tons. The total marine fish species production in 2006 was 3,500 tons, production of tuna 6,700 tons, mussels 3,500 tons and oysters 1,000,000 pieces. The catch of marine fish was increased by 9.21% comparing to 2005 (increase was noticed for white and blue fish species. During 2006 there were no significant changes regarding the number of commercial fishermen comparing to the last two years, while the number of small–scale fishermen decreased 1% comparing to the last year. The total production of fish products in 2006 was 17,362 tons, which is 2.46% more comparing to 2005.

  1. Spearfishing regulation benefits artisanal fisheries: the ReGS indicator and its application to a multiple-use Mediterranean marine protected area.

    Directory of Open Access Journals (Sweden)

    Delphine Rocklin

    Full Text Available The development of fishing efficiency coupled with an increase of fishing effort led to the overexploitation of numerous natural marine resources. In addition to this commercial pressure, the impact of recreational activities on fish assemblages remains barely known. Here we examined the impact of spearfishing limitation on resources in a marine protected area (MPA and the benefit it provides for the local artisanal fishery through the use of a novel indicator. We analysed trends in the fish assemblage composition using artisanal fisheries data collected in the Bonifacio Strait Natural Reserve (BSNR, a Mediterranean MPA where the spearfishing activity has been forbidden over 15% of its area. Fish species were pooled into three response groups according to their target level by spearfishing. We developed the new flexible ReGS indicator reflecting shifts in species assemblages according to the relative abundance of each response group facing external pressure. The catch per unit effort (CPUE increased by ca. 60% in the BSNR between 2000 and 2007, while the MPA was established in 1999. The gain of CPUE strongly depended on the considered response group: for the highly targeted group, the CPUE doubled while the CPUE of the untargeted group increased by only 15.5%. The ReGS value significantly increased from 0.31 to 0.45 (on a scale between 0 and 1 in the general perimeter of this MPA while it has reached a threshold of 0.43, considered as a reference point, in the area protected from spearfishing since 1982. Our results demonstrated that limiting recreational fishing by appropriate zoning in multiple-use MPAs represents a real benefit for artisanal fisheries. More generally we showed how our new indicator may reveal a wide range of impacts on coastal ecosystems such as global change or habitat degradation.

  2. 50 CFR 679.6 - Exempted fisheries.

    Science.gov (United States)

    2010-10-01

    ... Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION... disposition of all species taken. (ii) Area and timing of the experiment. (iii) Vessel and gear to be used... Regional Administrator, in consultation with the Alaska Fishery Science Center, will review...

  3. Exploration of Introducing Public Evaluation Mechanism into Fishery Fidelity%渔业互保引入公估机制的探索

    Institute of Scientific and Technical Information of China (English)

    吴书爱; 于文宝; 刘加钊

    2012-01-01

    The article analyzes the fishery's current situation and existing problems,introducing the current public adjuster mechanism in the commercial insurance,putting forward the feasibility of leading the public adjuster system in the fishery mutual insurance,so that it can promoting the scientific and fair evaluation of the reason,responsibility and the loss amount in some cases in the fishery mutual insurance.%针对我国渔业互保现状存在的问题,介绍了目前商业保险中的公估机制,提出了在渔业互保中引入公估机制的可行性,以促进渔业互保工作对理赔案件的出险原因、责任归属、损失金额等做出科学、公允的评估。

  4. Comparison of modern and historical fish catches (AD 750-1400) to inform goals for marine protected areas and sustainable fisheries.

    Science.gov (United States)

    McClanahan, Timothy R; Omukoto, Johnstone O

    2011-10-01

    We tested the unsustainable fishing hypothesis that species in assemblages of fish differ in relative abundance as a function of their size, growth rates, vagility, trophic level, and diet by comparing species composition in historical bone middens, modern fisheries, and areas closed to fishing. Historical data came from one of the earliest and most enduring Swahili coastal settlements (approximately AD 750-1400). Modern data came from fisheries near the archeological site and intensively harvested fishing grounds in southern Kenya. The areas we sampled that were closed to fishing (closures) were small (unsustainable fishing hypothesis. Fishes represented in the early midden assemblages from AD 750 to 950 had longer life spans, older age at maturity, and longer generation times than fish assemblages after AD 950, when the abundance of species with longer maximum body lengths increased. Changes in fish life histories during the historical period were, however, one-third smaller than differences between the historical and modern assemblages. Fishes in the modern assemblage had smaller mean body sizes, higher growth and mortality rates, a higher proportion of microinvertivores, omnivores, and herbivores, and higher rates of food consumption, whereas the historical assemblage had a greater proportion of piscivores and macroinvertivores. Differences in fish life histories between modern closures and modern fishing grounds were also small, but the life histories of fishes in modern closures were more similar to those in the midden before AD 950 because they had longer life spans, older age at maturity, and a higher proportion of piscivores and macroinvertivores than the modern fisheries. Modern closures and historical fish assemblages were considerably different, although both contained species with longer life spans. PMID:21676028

  5. Central Facilities Area Sewage Lagoon Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Mark R. Cole

    2013-12-01

    The Central Facilities Area (CFA), located in Butte County, Idaho, at the Idaho National Laboratory has an existing wastewater system to collect and treat sanitary wastewater and non-contact cooling water from the facility. The existing treatment facility consists of three cells: Cell #1 has a surface area of 1.7 acres, Cell #2 has a surface area of 10.3 acres, and Cell #3 has a surface area of 0.5 acres. If flows exceed the evaporative capacity of the cells, wastewater is discharged to a 73.5-acre land application site that uses a center-pivot irrigation sprinkler system. As flows at CFA have decreased in recent years, the amount of wastewater discharged to the land application site has decreased from 13.64 million gallons in 2004 to no discharge in 2012 and 2013. In addition to the decreasing need for land application, approximately 7.7 MG of supplemental water was added to the system in 2013 to maintain a water level and prevent the clay soil liners in the cells from drying out and “cracking.” The Idaho National Laboratory is concerned that the sewage lagoons and land application site may be oversized for current and future flows. A further concern is the sustainability of the large volumes of supplemental water that are added to the system according to current operational practices. Therefore, this study was initiated to evaluate the system capacity, operational practices, and potential improvement alternatives, as warranted.

  6. Mapping Fish Community Variables by Integrating Field and Satellite Data, Object-Based Image Analysis and Modeling in a Traditional Fijian Fisheries Management Area

    Directory of Open Access Journals (Sweden)

    Stacy Jupiter

    2011-03-01

    Full Text Available The use of marine spatial planning for zoning multi-use areas is growing in both developed and developing countries. Comprehensive maps of marine resources, including those important for local fisheries management and biodiversity conservation, provide a crucial foundation of information for the planning process. Using a combination of field and high spatial resolution satellite data, we use an empirical procedure to create a bathymetric map (RMSE 1.76 m and object-based image analysis to produce accurate maps of geomorphic and benthic coral reef classes (Kappa values of 0.80 and 0.63; 9 and 33 classes, respectively covering a large (>260 km2 traditional fisheries management area in Fiji. From these maps, we derive per-pixel information on habitat richness, structural complexity, coral cover and the distance from land, and use these variables as input in models to predict fish species richness, diversity and biomass. We show that random forest models outperform five other model types, and that all three fish community variables can be satisfactorily predicted from the high spatial resolution satellite data. We also show geomorphic zone to be the most important predictor on average, with secondary contributions from a range of other variables including benthic class, depth, distance from land, and live coral cover mapped at coarse spatial scales, suggesting that data with lower spatial resolution and lower cost may be sufficient for spatial predictions of the three fish community variables.

  7. 浙江嵊泗人工鱼礁区渔业资源生态容纳量变动的研究%Preliminary study on the variation of the carrying capacity of fishery resources in Shengsi artificial reef area

    Institute of Scientific and Technical Information of China (English)

    尹增强; 章守宇

    2011-01-01

    人工鱼礁是放置于海底以影响海洋生物资源的物理、生物或社会经济过程的人工设施.科学评价人工鱼礁对渔业资源生态容纳量的改善程度对揭示鱼礁的生态功能和指导鱼礁后续建设具有重要的理论与现实意义.人工鱼礁区鱼类和大型无脊椎动物可分为3种类型(Ⅰ型、Ⅱ型和Ⅲ型),其中Ⅱ型鱼类和大型无脊椎动物身体不接触鱼礁,但在鱼礁周围游泳、在海底栖息.该生物学资料可通过拖网调查取样获得.根据2004年10月~2007年9月浙江嵊泗人工鱼礁海域渔业资源拖网调查数据,建立了模拟礁区渔业资源密度随时间变化趋势的Logistic模型,并据此求解了鱼礁海域资源数量容纳量模型.通过遗传算法求得了Logistic模型的参数.结果表明,人工鱼礁区Ⅱ型鱼类和大型无脊椎动物的原有生态容纳量约为6.00~8.03 ind/km·kW,鱼礁投放所产生的新生态容纳量约为4.40~5.89 ind/km· kW,容纳量随季节变化而呈周期性波动.%An artificial reef is one or more objects of natural or human origin deployed purposefully on the seafloor to influence physical, biological, or socioeconomic processes related to living marine resources, which is applied to improve marine environment and protect fishery resources. Large numbers of artificial reef projects have been carried out in China since the beginning of 21st century, so as to restore marine habitat. It is practically very important for future construction of the artificial reefs that the fishery resources enhancement of the artificial reef can be scientifically evaluated. There are 3 types of fish and macro-invertebrates (I. E. Type I, Ⅱ · And Ⅲ) in artificial reef area. Type Ⅱ animals inhabit surrounding areas and do not contact artificial reef, whose biological data can be obtained by trawling. Based on the survey data of fishery resources in artificial reef area of Shengsi in Zhejiang Province, the density of

  8. A Fisheries Evaluation of the Wapato, Sunnyside and Toppenish Creek Canal Fish Screening Facilities, Spring 1988 : Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Neitzel, Duane A.; Abernethy, C. Scott; Lusty, E. William (Pacific Northwest Laboratory)

    1990-03-01

    We evaluated the effectiveness of new screening facilities at the Toppenish Creek, Wapato, and Sunnyside canals in southcentral Washington State. Screen integrity tests indicated that fish released in front of the screens were prevented from entering the canal behind the screens. Screen efficiency estimates are 99% ({+-}0.6%) for Toppenish Creek, 99% ({+-}0.3%) for Wapato, and 98% ({+-}0.5%) for Sunnyside. During 1987 at the Wapato Canal, we estimated screen efficiency was 97% ({+-}l%). We conducted descaling tests at the Toppenish Creek Screens. We estimated that 0.2% of steelhead Qncorhynchus mykiss smelts released during tests were descaled. None of the fish released through the fish return pipe were descaled. We measured the time required for fish to move through the screen facilities. The time required for 50% of the test fish to exit the Toppenish Creek Screen forebay was 4 to 9 h for rainbow trout fry and up to 39 h for steelhead smelts. The time for 50% of the test fish to exit the Wapato and Sunnyside screen forebays was less than 8 h. As with past studies, exit times varied with canal flow and species. After 39 h at Toppenish Creek, half the steelhead smelts were still in the forebay when canal flows were 20 cfs. At Sunnyside, half the chinook salmon fry exited the forebay in 1 h or less. Methods used in 1988 were the same as those used at Sunnyside in 1985 and in subsequent years at Richland, Toppenish/Satus, and Wapato. The methods and previous results have been reviewed by the Washington State Department of Fisheries, U.S. Fish and Wildlife Service, National Marine Fisheries Service, Northwest Power Planning Council, and Yakima Indian Nation.

  9. A size-structured simulation model for evaluating management strategies in gillnet fisheries exploiting spatially differentiated populations.

    NARCIS (Netherlands)

    Pet, J.S.; Machiels, M.A.M.; Densen, van W.L.T.

    1996-01-01

    A length-structured simulation model is presented as a tool in decision making for gillnet fisheries management. The analytical model simulates the fish population dynamics and impact of the fisheries, taking into account size-dependent spatial distribution patterns and migration of the fish. The da

  10. Selecting indicators to assess the fisheries of Lake Malawi and Lake Malombe: Knowledge base and evaluative capacity

    NARCIS (Netherlands)

    Zwieten, van P.A.M.; Banda, M.; Kolding, J.

    2011-01-01

    The provision of management information on the fisheries of Lakes Malawi and Malombe has been characterised by top–down controlled single species steady-state assessment techniques originating from single gear industrial fisheries but applied to an open access highly diverse and adaptive small-scale

  11. Evaluating social and ecological vulnerability of coral reef fisheries to climate change.

    Directory of Open Access Journals (Sweden)

    Joshua E Cinner

    Full Text Available There is an increasing need to evaluate the links between the social and ecological dimensions of human vulnerability to climate change. We use an empirical case study of 12 coastal communities and associated coral reefs in Kenya to assess and compare five key ecological and social components of the vulnerability of coastal social-ecological systems to temperature induced coral mortality [specifically: 1 environmental exposure; 2 ecological sensitivity; 3 ecological recovery potential; 4 social sensitivity; and 5 social adaptive capacity]. We examined whether ecological components of vulnerability varied between government operated no-take marine reserves, community-based reserves, and openly fished areas. Overall, fished sites were marginally more vulnerable than community-based and government marine reserves. Social sensitivity was indicated by the occupational composition of each community, including the importance of fishing relative to other occupations, as well as the susceptibility of different fishing gears to the effects of coral bleaching on target fish species. Key components of social adaptive capacity varied considerably between the communities. Together, these results show that different communities have relative strengths and weaknesses in terms of social-ecological vulnerability to climate change.

  12. Fisheries manpower development in the eighties

    OpenAIRE

    Olaniawa, A.A.

    1986-01-01

    An examination is made of training programmes in the Federal Fisheries School, Lagos, detailing training objectives, manpower requirement and training strategies, indicating also areas for improvement and development

  13. CROATIAN FISHERIES IN 2004

    Directory of Open Access Journals (Sweden)

    Irena Jahutka

    2005-10-01

    Full Text Available This work deals with all the relevant statistic data regarding fisheries of Republic of Croatia, including freshwater fisheries data (aquaculture of fish and other aquatic organisms, commercial and sports fisheries, marine fisheries data (mariculture, commercial fisheries, small–scale fisheries and processing of fish and other marine organisms, as well as data about import and export of fish and fish products and the data about financial subventions in fisheries. Regarding aquaculture (freshwater fish farming in 2004 there have been noticed slight changes comparing to 2003. The total freshwater fish production in 2004 was 5,618 tons (4,259 tons of warm–water species and 1,359 tons of cold–water species. Total areas and production areas were increased comparing to 2003 (total areas 1.94% and production areas 5.42%. Total catch of freshwater fish in 2004 was 567 tons. The total marine fish species production was increased cca. 20% comparing to 2003. Mussels farming, which is slightly increasing since 1999, during 2004 was decreased, while oysters farming were stagnating. The catch of marine fish was increased by 9.74% comparing to 2003. The biggest increase is noticed regarding catch of demersal and other fish species. As well as the increase of the total catch, the number of commercial fishermen and fishing vessels was also increased in 2003. The number of fishermen who fish for their own consumption (without the right to sell fish–small scale fishermen in 2004 was 13,700. The total production of fish products in 2004 was 14,270 tons, which is 24.89% less comparing to 2003. Along this decrease, there has been also noticed an increasing trend of the production assortments, specially salted anchovy. The value of import in 2004 was higher than the value of export, although the export/import balance was higher in amount on the import side. Financial subventions payments in 2004 were 67.21% higher comparing to the first year of payments (1997

  14. Effects of Water Pollution in Koluama Area, Niger Delta Area, Nigeria Fish Species Composition, Histology, Shrimp Fishery and Fishing Gear Type

    Directory of Open Access Journals (Sweden)

    J.F.N. Abowei

    2013-06-01

    Full Text Available The effect of water pollution in Koluama Area in the Niger Delta region of Nigeria to determine its effects on fish species composition, histology, shrimp fishery and fishing gear type. A total of twenty (20 species belonging to eleven (11 families were recorded. Strongylura senegalensis, Lagocephalus laevigatus, Tarpon atlantica, Pristis pristis, Galeoides decadatylus and Butis koilomatodon were rare. Ephippion guttifer, Chaetodipterus goreensis, Sardinella maderensis, Sardinella aurita, Liza falcipinnis, Mugil bananensis, Pentanemus quinquarius, Polydactylus quadrafilis and Trichuris lepturis were common. Ethmalosa fimbriata, Liza grandisquamis, Sphyraena guachancho, Mugil curema, Sphyraena guachancho and Dormitator pleurops were abundant. None was dominant. The highest number of fish species (16 were recorded in fish town and none was recorded in Kuloma 1 and one (1 was recorded for Kulauma 11. Foroupa, Ekeni, Ejetu and Ikebiri fishing port 1 and 2 recorded 8, 7, 3 and 5 fish species respectively. Artisanal fishing is based on traditional methods of fishing using essentially canoe and different fishing nets which depend on the season and target fish species. Canoes may be motorized or hand-paddled. Common gear types include shrimp traps, drift gill nets, set gill nets, cast nets, seine nets, hook and lines. Lift nets may be use by women folk who target small shrimp species in the creeks and creek lets. Other fishing methods include hand-picking for periwinkles, oysters and other shellfish by women folk and children. Prominent among the fishing devices are edek, a type of fish fence used in the creeks; alot, a large trap used on sand and mud-banks in the estuaries; and otunwa, a barbed spear. Fishers using these devices either operated from their home villages, exploiting the nearby waters, or staged long distance fishing expeditions, during which they lived in distant camps or house-boats. The heavy metals concentration level values are: Cd

  15. Institutions for sustainable fisheries governance - the case of the commercial Peruvian anchovy fishery

    OpenAIRE

    Arias Schreiber, Milena

    2013-01-01

    Fisheries governance is about influencing multiple actors decisions and behaviours relative to an ocean area and the resources contained therein. How these behaviours and decisions are influenced is a matter of institutions. This research uses the Peruvian anchovy fishery as a case study. Landings of Peruvian anchovy represent almost 10 % of the worlds total fishery landings. Following the well known collapse of the anchovy fishery at the start of the 1970s, landings have recovered and have b...

  16. Banks Lake Fishery Evaluation Project Annual Report : Fiscal Year 2008 (March 1, 2008 to February 1, 2009).

    Energy Technology Data Exchange (ETDEWEB)

    Polacek, Matt [Washington Department of Fish and Wildlife

    2009-07-15

    The Washington Department of Fish and Wildlife implemented the Banks Lake Fishery Evaluation Project (BLFEP) in September 2001 with funds from the Bonneville Power Administration, and continued project tasks in 2008. The objective was to evaluate factors that could limit kokanee in Banks Lake, including water quality, prey availability, harvest, and acute predation during hatchery releases. Water quality parameters were collected twice monthly from March through November. Banks Lake water temperatures began to increase in May and stratification was apparent by July. By late August, the thermocline had dropped to 15 meters deep, with temperatures of 21-23 C in the epilimnion and 16-19 C in the hypolimnion. Dissolved oxygen levels were generally above 8 mg/L until August when they dropped near or below 5 mg/L deeper than 20-meters. Secchi depths ranged from 3.2 to 6.2 meters and varied spatially and temporally. Daphnia and copepod densities were the highest in May and June, reaching densities of 26 copepods/liter and 9 Daphnia/liter. Fish surveys were conducted in July and October 2008 using boat electrofishing, gill netting, and hydroacoustic surveys. Lake whitefish (71%) and yellow perch (16%) dominated the limnetic fish assemblage in the summer, while lake whitefish (46%) and walleye (22%) were the most abundant in gill net catch during the fall survey. Piscivore diets switched from crayfish prior to the release of rainbow trout to crayfish and rainbow trout following the release. The highest angling pressure occurred in May, when anglers were primarily targeting walleye and smallmouth bass. Boat anglers utilized Steamboat State Park more frequently than any other boat ramp on Banks Lake. Shore anglers used the rock jetty at Coulee City Park 45% of the time, with highest use occurring from November through April. Ice fishing occurred in January and February at the south end of the lake. An estimated total of 4,397 smallmouth bass, 11,106 walleye, 371 rainbow trout

  17. Lake Roosevelt Fisheries Evaluation Program, Part B; Limnology, Primary Production, and Zooplankton in Lake Roosevelt, Washington, 1998 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Shields, John; Spotts, Jim; Underwood, Keith

    2002-11-01

    The Lake Roosevelt Fisheries Evaluation Program is the result of a merger between two projects, the Lake Roosevelt Monitoring Program (BPA No. 8806300) and the Lake Roosevelt Data Collection Project (BPA No. 9404300). These projects were merged in 1996 to continue work historically completed under the separate projects, and is now referred to as the Lake Roosevelt Fisheries Evaluation Program. The 1998 Annual Report, Part B. Limnology, Primary Production, and Zooplankton in Lake Roosevelt, Washington examined the limnology, primary production, and zooplankton at eleven locations throughout the reservoir. The 1998 research protocol required a continuation of the more complete examination of limnological parameters in Lake Roosevelt that began in 1997. Phytoplankton and periphyton speciation, phytoplankton and periphyton chlorophyll a analysis, complete zooplankton biomass analysis by taxonomic group, and an increased number of limnologic parameters (TDG, TDS, etc.) were examined and compared with 1997 results. Total dissolved gas levels were greatly reduced in 1998, compared with 1997, likely resulting from the relatively normal water year experienced in 1998. Mean water temperatures were similar to what was observed in past years, with a maximum of 22.7 C and a minimum of 2.6 C. Oxygen concentrations were also relatively normal, with a maximum of 16.6 mg/L, and a minimum of 0.9 mg/L. Phytoplankton in Lake Roosevelt was primarily composed of microplankton (29.6%), Cryptophyceae (21.7%), and Bacillriophyceae (17.0 %). Mean total phytoplankton chlorophyll a maximum concentration occurred in May (3.53 mg/m{sup 3}), and the minimum in January (0.39 mg/m{sup 3}). Phytoplankton chlorophyll a concentrations appear to be influenced by hydro-operations and temperature. Trophic status as indicated by phytoplankton chlorophyll a concentrations place Lake Roosevelt in the oligomesotrophic range. Periphyton colonization rates and biovolume were significantly greater at a depth

  18. CROATIAN FISHERIES IN 2005

    Directory of Open Access Journals (Sweden)

    Irena Jahutka

    2006-10-01

    Full Text Available This work deals with all the relevant statistic data regarding fisheries of Republic of Croatia, including freshwater fisheries data (aquaculture of fish and other aquatic organisms, commercial and sports fisheries, marine fisheries data (mariculture, commercial fisheries, small–scale fisheries and processing of fish and other marine organisms, as well as data about import and export of fish and fish products and the data about financial subventions in fisheries. Regarding aquaculture (freshwater fish farming in 2005. there have been noticed slight production increase (both warmwater and coldwater fish species. The total freshwater fish production in 2005. was 6,199 tons (4,776 tons of warm–water species and 1,423 tons of cold–water species. Total areas and production areas were decreased comparing to 2004. (in all categories of production areas except for consum–fish production areas, where a slight increase has been noticed. Total catch of freshwater fish in 2005. was 656 tons. The total marine fish species production in 2005. was 3,000 tons, production of tuna 4,000 tons, mussels 2,500 tons and oysters 800,000 pieces. In mariculture sector there has been noticed the biggest increase in fish–fry production (43.39% comparing to 2004., in 2005. it was 10,000,000 pieces. The catch of marine fish was increased by 8.50% comparing to 2004. (increase was noticed for white and blue fish species. During 2005. there were no significant changes regarding the number of commercial fishermen comparing to the last two years, while the number of small–scale fishermen decreased 3.80% comparing to the last year. The total production of fish products in 2005. as 16,945 tons, which is 31.65% more comparing to 2004. In this sector the most significant is the increase of salted fish production, which was 56.11% more than 2004. The value of import in 2005. was higher than the value of export, which represents the only exception in last decade. The

  19. Development of a System-Wide Predator Control Program: Stepwise Implementation of a Predation Index, Predator Control Fisheries, and Evaluation Plan in the Columbia River Basin; Northern Pikeminnow Management Program, 2001 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Porter, Russell G.; Winther, Eric C.; Fox, Lyle G.

    2003-03-01

    This report presents results for year eleven in a basin-wide program to harvest northern pikeminnow (Ptychocheilus oregonensis). This program was started in an effort to reduce predation by northern pikeminnow on juvenile salmonids during their emigration from natal streams to the ocean. Earlier work in the Columbia River Basin suggested predation by northern pikeminnow on juvenile salmonids might account for most of the 10-20% mortality juvenile salmonids experience in each of eight Columbia River and Snake River reservoirs. Modeling simulations based on work in John Day Reservoir from 1982 through 1988 indicated that, if predator-size northern pikeminnow were exploited at a 10-20% rate, the resulting restructuring of their population could reduce their predation on juvenile salmonids by 50%. To test this hypothesis, we implemented a sport-reward angling fishery and a commercial longline fishery in the John Day Pool in 1990. We also conducted an angling fishery in areas inaccessible to the public at four dams on the mainstem Columbia River and at Ice Harbor Dam on the Snake River. Based on the success of these limited efforts, we implemented three test fisheries on a system-wide scale in 1991--a tribal longline fishery above Bonneville Dam, a sport-reward fishery, and a dam-angling fishery. Low catch of target fish and high cost of implementation resulted in discontinuation of the tribal longline fishery. However, the sport-reward and dam-angling fisheries were continued in 1992 and 1993. In 1992, we investigated the feasibility of implementing a commercial longline fishery in the Columbia River below Bonneville Dam and found that implementation of this fishery was also infeasible.

  20. Yakima River Species Interactions Studies; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2004-2005 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Pearsons, Todd N.; Temple, Gabriel M.; Fritts, Anthony L. (Washington Department of Fish and Wildlife, Olympia, WA)

    2005-05-01

    Journal of Fisheries Management. Chapter 3 is an essay that describes the problems associated with popular population estimators. This essay was submitted to Fisheries magazine. Chapter 4 describes an evaluation of recovery times on mark-recapture and multiple removal population estimates. Chapter 4 was submitted to the North American Journal of Fisheries Management as a manuscript. Chapter 5, which was submitted as a manuscript to Transactions of the American Fisheries Society, describes the role of predator and prey size in evaluating predation risk by smallmouth bass in the Yakima River. The chapters in this report are in various stages of development and should be considered preliminary unless they have been published in a peer-reviewed journal. Additional field-work and/or analysis is in progress for topics covered in this report.

  1. Let's make the brown shrimp green ! Evaluation of discarding practices in the North Sea Brown shrimp (Crangon crangon L.) fishery

    OpenAIRE

    H. POLET

    2005-01-01

    The Brown Shrimp (Crangon crangon L.) fishery in the North Sea, the focus of this study, is carried out with small meshed nets in vulnerable areas like coastal zones and estuaries. The discarding practices associated with it have been regarded as a problem for many years. The discussion, however, was difficult since no sufficiently reliable discard data were available. The need for data on this issue and a solution for the discard problem was the starting point of the study. The main objectiv...

  2. Development of a Systemwide Program: Stepwise Implementation of a Predation Index, Predator Control Fisheries and Evaluation Plan in the Columbia River Basin, Volume 1, 1992 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Ward, David L.

    1994-06-01

    Results of the second year are reported of a basinwide program to harvest northern squawfish in an effort to reduce mortality due to squawfish predation on juvenile salmonids during their migration from natal streams to the ocean. Six papers are included in this report. They are entitled: feasibility investigation of a commercial longline fishery for northern squawfish in the Columbia River downstream from Bonneville dam; evaluation of the northern squawfish sport-reward fishery in the Columbia and Snake Rivers; controlled angling for northern squawfish at selected dams on the Columbia and Snake Rivers in 1992; evaluation of harvest technology for squawfish control in Columbia River reservoirs; effectiveness of predator-removal for protecting juvenile fall chinook salmon released from Bonneville Hatchery; and Northern squawfish sport-reward payments.

  3. Discarding in beam trawl fisheries: optimisation of discard sampling, evaluation of reducing technical measures and sensibilisation of the sector

    OpenAIRE

    Vandendriessche, S; Vandemaele, S.; Moreau, K.; Anseeuw, D

    2008-01-01

    Beam trawling for flatfish is the dominant activity in the Belgian fisheries fleet. This activity is characterised by a considerable environmental impact and a high discard rate of bottom-dwelling fish and benthic invertebrates. international pressure on beam trawl fisheries leading to future European measures to reduce or potentially even ban Research on discard practices is currently conducted in the framework of the National Data Gathering Program, but is mainly focussed on commercial fi...

  4. Yakima/Klickitat Fisheries Project Monitoring and Evaluation, Final Report For the Performance Period May 1, 2008 through April 30, 2009.

    Energy Technology Data Exchange (ETDEWEB)

    Sampson, Melvin R. [The Confederated Tribes and Bands of the Yakama Nation

    2009-07-30

    The Yakima-Klickitat Fisheries Project (YKFP) is a joint project of the Yakama Nation (lead entity) and the Washington State Department of Fish and Wildlife (WDFW) and is sponsored in large part by the Bonneville Power Administration (BPA) with oversight and guidance from the Northwest Power and Conservation Council (NPCC). It is among the largest and most complex fisheries management projects in the Columbia Basin in terms of data collection and management, physical facilities, habitat enhancement and management, and experimental design and research on fisheries resources. Using principles of adaptive management, the YKFP is attempting to evaluate all stocks historically present in the Yakima subbasin and apply a combination of habitat restoration and hatchery supplementation or reintroduction, to restore the Yakima Subbasin ecosystem with sustainable and harvestable populations of salmon, steelhead and other at-risk species. The original impetus for the YKFP resulted from the landmark fishing disputes of the 1970s, the ensuing legal decisions in United States versus Washington and United States versus Oregon, and the region's realization that lost natural production needed to be mitigated in upriver areas where these losses primarily occurred. The YKFP was first identified in the NPCC's 1982 Fish and Wildlife Program (FWP) and supported in the U.S. v Oregon 1988 Columbia River Fish Management Plan (CRFMP). A draft Master Plan was presented to the NPCC in 1987 and the Preliminary Design Report was presented in 1990. In both circumstances, the NPCC instructed the Yakama Nation, WDFW and BPA to carry out planning functions that addressed uncertainties in regard to the adequacy of hatchery supplementation for meeting production objectives and limiting adverse ecological and genetic impacts. At the same time, the NPCC underscored the importance of using adaptive management principles to manage the direction of the Project. The 1994 FWP reiterated the

  5. A Setting for a Field-based Class for Improved Understanding of Sustainability Through the Evaluation of Aquaculture and Fisheries

    Science.gov (United States)

    Macko, S. A.; O'Connell, M. T.

    2015-12-01

    An improved understanding of sustainability is increasingly a subject in educational settings. Marine science classes are perfect settings of establishing sustainability awareness owing to declining populations of organisms and perceived collapse in fisheries worldwide. Students in oceanography classes often request more direct exposure to actual ocean situations or field trips. During regular session (13 week) or shorter term (4 week) summer classes such long trips are logistically difficult owing to large numbers of students involved or timing. This new approach to such a course supplement addresses the requests by utilizing local resources and short field trips for a limited number of students (20) to locations in which Ocean experiences are available, and are often supported through education and outreach components. The vision of the class was a mixture of classroom time, readings, along with paper and laboratories. In addition, short day-long trips to locations where the ocean was "captured" were also used to supplement the experience as well as speakers involved with aquaculture. Central Virginia is a fortunate location for such a class, with close access for travel to the Chesapeake Bay and numerous field stations, museums with ocean-based exhibits (the Smithsonian and National Zoo) that address both extant and extinct Earth history, as well as national/state aquaria in Baltimore and Virginia Beach. Furthermore, visits to local seafood markets at local grocery stores, or larger city markets in Washington, Baltimore and Virginia Beach, enhance the exposure to productivity in the ocean, and viability of the fisheries sustainability. The course could then address not only the particulars of the marine science, but also aspects of sustainability with discussions on ethics, including keeping animals in captivity or overfishing of particular species and the special difficulties that arise from captive or culturing ocean populations. In addition, the class was

  6. Development of a System-Wide Predator Control Program: Stepwise Implementation of a Predation Index, Predator Control Fisheries, and Evaluation Plan in the Columbia River Basin; Northern Pikeminnow Management Program, 2002 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Porter, Russell G.; Winther, Eric C.; Fox, Lyle G.

    2004-01-01

    This report presents results for year twelve in a basin-wide program to harvest northern pikeminnow1 (Ptychocheilus oregonensis). This program was started in an effort to reduce predation by northern pikeminnow on juvenile salmonids during their emigration from natal streams to the ocean. Earlier work in the Columbia River Basin suggested predation by northern pikeminnow on juvenile salmonids might account for most of the 10-20% mortality juvenile salmonids experience in each of eight Columbia River and Snake River reservoirs. Modeling simulations based on work in John Day Reservoir from 1982 through 1988 indicated that, if predator-size northern pikeminnow were exploited at a 10-20% rate, the resulting restructuring of their population could reduce their predation on juvenile salmonids by 50%. To test this hypothesis, we implemented a sport-reward angling fishery and a commercial longline fishery in the John Day Pool in 1990. We also conducted an angling fishery in areas inaccessible to the public at four dams on the mainstem Columbia River and at Ice Harbor Dam on the Snake River. Based on the success of these limited efforts, we implemented three test fisheries on a system-wide scale in 1991--a tribal longline fishery above Bonneville Dam, a sport-reward fishery, and a dam-angling fishery. Low catch of target fish and high cost of implementation resulted in discontinuation of the tribal longline fishery. However, the sport-reward and dam-angling fisheries were continued in 1992 and 1993. In 1992, we investigated the feasibility of implementing a commercial longline fishery in the Columbia River below Bonneville Dam and found that implementation of this fishery was also infeasible. Estimates of combined annual exploitation rates resulting from the sport-reward and damangling fisheries remained at the low end of our target range of 10-20%. This suggested the need for additional effective harvest techniques. During 1991 and 1992, we developed and tested a modified

  7. Development of a System-Wide Program, Volume II : Stepwise Implementation of a Predation Index, Predator Control Fisheries and Evaluation Plan in the Columbia River Basin, 1992 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Ward, David L.; Nigro, Anthony A. (Oregon Department of Fish and Wildlife); Willis, Charles F. (S.P. Cramer and Associates., Gresham, OR)

    1994-06-01

    The authors report their results of studies to determine the extent to which northern squawfish predation on juvenile salmonids is a problem in the Columbia River Basin, and to evaluate how effectively fisheries can be used to control northern squawfish populations and reduce juvenile salmonid losses to predation. These studies were initiated as part of a basinwide program to control northern squawfish predation and reduce mortality of juvenile salmonids on their migration to the ocean. Three papers are included in this report. They are entitled: (1) Development of a Systemwide Predator Control Program: Indexing and Fisheries Evaluation; (2) Economic, Social and Legal Feasibility of Commercial Sport, and Bounty Fisheries on Northern Squawfish; (3) Columbia River Ecosystem Model (CREM): Modeling Approach for Evaluation of Control of Northern Squawfish Populations using Fisheries Exploitation.

  8. Connectivity of larval cod in the transition area between North Sea and Baltic Sea and potential implications for fisheries management

    DEFF Research Database (Denmark)

    Huwer, Bastian; Hinrichsen, H.-H.; Hüssy, Karin;

    2016-01-01

    distributions of juvenile cod. The transport of particles showed considerable intra- and interannual variability, but also some general patterns of retention within and dispersion todifferentmanagement areas.Good spatial overlapof particle end positions, representing potential juvenile settlement areas...

  9. 77 FR 60321 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2012-10-03

    ...NMFS is prohibiting directed fishing for pollock in Statistical Area 620 in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the 2012 total allowable catch of pollock for Statistical Area 620 in the...

  10. Yakima/Klickitat Fisheries Project; Klickitat Only Monitoring and Evaluation, 2002-2003 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Sampson, Melvin; Evenson, Rolf

    2003-12-01

    The monitoring and evaluation activities described in this report were determined by consensus of the scientists from the Yakama Nation (YN). Klickitat Subbasin Monitoring and Evaluation (M&E) activities have been subjected to scientific and technical review by members of YKFP's Science/Technical Advisory Committee (STAC) as part of the YKFP's overall M&E proposal. Yakama Nation YKFP project biologists have transformed the conceptual design into the tasks described. This report summarizes progress and results for the following major categories of YN-managed tasks under this contract: (1) Monitoring and Evaluation - Accurately characterize baseline available habitat and salmonid populations pre-habitat restoration and pre-supplementation. (2) EDT Modeling - Identify and evaluate habitat and artificial production enhancement options. (3) Genetics - Characterize the genetic profile of wild steelhead in the Klickitat Basin. (4) Ecological Interactions - Determine the presence of pathogens in wild and naturally produced salmonids in the Klickitat Basin and develop supplementation strategies using this information.

  11. A fisheries evaluation of the Westside Ditch and Wapato Canal fish screening facilities, Spring 1989

    Energy Technology Data Exchange (ETDEWEB)

    Neitzel, D.A.; Abernethy, C.S.; Lusty, E.W.

    1990-06-01

    The Bonneville Power Administration, the United States Bureau of Reclamation, and the Washington State Department of Ecology are funding the construction and evaluation of fish passage and protection facilities at irrigation and hydroelectric diversions in the Yakima River Basin, Washington State. The programs provide offsite enhancement to compensate for fish and wildlife losses caused by hydroelectric development throughout the Columbia River Basin, and they address natural propagation of salmon to help mitigate the impact of irrigation in the Yakima River Basin. The Westside Ditch and Wapato Screens are two of the juvenile screening facilities. This report evaluates the effectiveness of the screens facilities for intercepting and returning juvenile salmonids unharmed to the Yakima River from which they were diverted. We evaluated the effectiveness of new fish screening facilities in the Westside Ditch and Wapato Canal in south-central Washington State. The screen integrity tests indicated that test fish released in front of the screens could enter the canal behind the screens. The study emphasized salmonids. Test fish were steelhead Oncorhynchus mykiss smolts, spring chinook salmon O. tshawytscha smolts, and rainbow trout O. mykiss fry. Evaluations were conducted during typical spring flows in the diversion. 13 refs., 10 figs., 6 tabs.

  12. 75 FR 9534 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2010-03-03

    ... Statistical Area 630 of the GOA under Sec. 679.20(d)(1)(iii) on February 5, 2010 (75 FR 6589 February 10, 2010... Statistical Area 630 of the Gulf of Alaska (GOA). This action is necessary to fully use the A season allowance of the 2010 total allowable catch (TAC) of pollock in Statistical Area 630 of the GOA....

  13. Monitoring and evaluation : Yakima/Klickitat fisheries project, Final report 2000; FINAL

    International Nuclear Information System (INIS)

    The monitoring and evaluation objectives and tasks have been developed through a joint process between the co-managers, Yakama Nation (YN, Lead Agency) and Washington Department of Fish and Wildlife (WDFW). The Science/Technical Advisory Committee (STAC), which consists of core members from the co-managers, employs the services of a work committee of scientists, the Monitoring Implementation Planning Team (MIPT) to develop the Monitoring and Evaluation (M and E) Plan. The process employed by STAC to verify these designated activities and the timing of their implementation involved the utilization of the following principles: (1) YKFP monitoring should evaluate the success (or lack of it) of project supplementation efforts and its impacts, including juvenile post release survival, natural production and reproductive success, ecological interactions, and genetics; (2) YKFP monitoring should be comprehensive: and, (3) YKFP monitoring should be done in such a way that results are of use to salmon production efforts throughout and Columbia basin and the region. Utilizing these principles, STAC and MIPT developed this M and ;E action plan in three phases. The first phase was primarily conceptual. STAC and MIPT defined critical issues and problems and identified associated response variables. The second phase was quantitative, which determined the scale and size of an effective monitoring effort. A critical element of the quantitative phase was an assessment of the precision with which response variables can be measured, the probability of detecting real impacts and the sample sizes required for a given level of statistical precision and power. The third phase is logistical. The feasibility of monitoring measures was evaluated as to practicality and cost. The Policy Group has determined that the M and E activities covered by this agreement are necessary, effective and cost-efficient

  14. Monitoring and evaluation : Yakima/Klickitat fisheries project, annual report, 2001

    International Nuclear Information System (INIS)

    The monitoring and evaluation objectives and tasks have been developed through a joint process between the co-managers, Yakama Nation (YN, Lead Agency) and Washington Department of Fish and Wildlife (WDFW). The Science/Technical Advisory Committee (STAC), which consists of core members from the co-managers, employs the services of a work committee of scientists, the Monitoring Implementation Planning Team (MIPT) to develop the Monitoring and Evaluation (M and E) Plan. The process employed by STAC to verify these designated activities and the timing of their implementation involved the utilization of the following principles: (1) YKFP monitoring should evaluate the success (or lack of it) of project supplementation efforts and its impacts, including juvenile post release survival, natural production and reproductive success, ecological interactions, and genetics; (2) YKFP monitoring should be comprehensive: and, (3) YKFP monitoring should be done in such a way that results are of use to salmon production efforts throughout and Columbia basin and the region. Utilizing these principles, STAC and MIPT developed this M and E action plan in three phases. The first phase was primarily conceptual. STAC and MIPT defined critical issues and problems and identified associated response variables. The second phase was quantitative, which determined the scale and size of an effective monitoring effort. A critical element of the quantitative phase was an assessment of the precision with which response variables can be measured, the probability of detecting real impacts and the sample sizes required for a given level of statistical precision and power. The third phase is logistical. The feasibility of monitoring measures was evaluated as to practicality and cost. The Policy Group has determined that the M and E activities covered by this agreement are necessary, effective and cost-efficient

  15. Ecological footprint evaluation of improved student’s menus using fishery products

    OpenAIRE

    Iuliana Vintilă

    2010-01-01

    The ecological footprints (EF) analyses were conducted in order to evaluate the environmentimpact of improving actual catering system by replacing 50-100% of red meat products (beef) withlocal/regional fishy products in the weekly meals created for “Dunarea de Jos” University (UGAL)students in 2010. Product-specific EF was calculated from consistent and quality-controlled life cycleinformation of food products and services, including energy, materials, transport, waste treatment andinfrastruc...

  16. Monitoring and Evaluation : Yakima/Klickitat Fisheries Project, Final Report 2000.

    Energy Technology Data Exchange (ETDEWEB)

    Sampson, Melvin R.

    2000-01-01

    The monitoring and evaluation objectives and tasks have been developed through a joint process between the co-managers, Yakama Nation (YN, Lead Agency) and Washington Department of Fish and Wildlife (WDFW). The Science/Technical Advisory Committee (STAC), which consists of core members from the co-managers, employs the services of a work committee of scientists, the Monitoring Implementation Planning Team (MIPT) to develop the Monitoring and Evaluation (M&E) Plan. The process employed by STAC to verify these designated activities and the timing of their implementation involved the utilization of the following principles: (1) YKFP monitoring should evaluate the success (or lack of it) of project supplementation efforts and its impacts, including juvenile post release survival, natural production and reproductive success, ecological interactions, and genetics; (2) YKFP monitoring should be comprehensive: and, (3) YKFP monitoring should be done in such a way that results are of use to salmon production efforts throughout and Columbia basin and the region. Utilizing these principles, STAC and MIPT developed this M&E action plan in three phases. The first phase was primarily conceptual. STAC and MIPT defined critical issues and problems and identified associated response variables. The second phase was quantitative, which determined the scale and size of an effective monitoring effort. A critical element of the quantitative phase was an assessment of the precision with which response variables can be measured, the probability of detecting real impacts and the sample sizes required for a given level of statistical precision and power. The third phase is logistical. The feasibility of monitoring measures was evaluated as to practicality and cost. The Policy Group has determined that the M&E activities covered by this agreement are necessary, effective and cost-efficient.

  17. Monitoring and Evaluation : Yakima/Klickitat Fisheries Project, Annual Report 2001.

    Energy Technology Data Exchange (ETDEWEB)

    Sampson, Melvin R.

    2002-12-01

    The monitoring and evaluation objectives and tasks have been developed through a joint process between the co-managers, Yakama Nation (YN, Lead Agency) and Washington Department of Fish and Wildlife (WDFW). The Science/Technical Advisory Committee (STAC), which consists of core members from the co-managers, employs the services of a work committee of scientists, the Monitoring Implementation Planning Team (MIPT) to develop the Monitoring and Evaluation (M&E) Plan. The process employed by STAC to verify these designated activities and the timing of their implementation involved the utilization of the following principles: (1) YKFP monitoring should evaluate the success (or lack of it) of project supplementation efforts and its impacts, including juvenile post release survival, natural production and reproductive success, ecological interactions, and genetics; (2) YKFP monitoring should be comprehensive: and, (3) YKFP monitoring should be done in such a way that results are of use to salmon production efforts throughout and Columbia basin and the region. Utilizing these principles, STAC and MIPT developed this M&E action plan in three phases. The first phase was primarily conceptual. STAC and MIPT defined critical issues and problems and identified associated response variables. The second phase was quantitative, which determined the scale and size of an effective monitoring effort. A critical element of the quantitative phase was an assessment of the precision with which response variables can be measured, the probability of detecting real impacts and the sample sizes required for a given level of statistical precision and power. The third phase is logistical. The feasibility of monitoring measures was evaluated as to practicality and cost. The Policy Group has determined that the M&E activities covered by this agreement are necessary, effective and cost-efficient.

  18. A fisheries evaluation of the Wapato, Sunnyside, and Toppenish Creek canal fish screening facilities, spring 1988

    Energy Technology Data Exchange (ETDEWEB)

    Neitzel, D.A.; Abernethy, C.S.; Lusty, E.W.

    1990-03-01

    The Bonneville Power Administration, the United States Bureau of Reclamation, and the Washington State Department of Ecology are funding the construction and evaluation of fish passage and protection facilities at irrigation and hydroelectric diversions in the Yakima River Basin, Washington State. The programs provide offsite enhancement to compensate for fish and wildlife losses caused by hydroelectric development throughout the Columbia River Basin and address natural propagation of salmon to help mitigate the impact of irrigation in the Yakima River Basin. The Wapato, Sunnyside, and Toppenish Creek Screens are three of the facilities in the basin. This report evaluates the effectiveness of the screens in intercepting and returning juvenile salmonids unharmed to the river from which they were diverted. We evaluated the effectiveness of new screening facilities at the Toppenish Creek, Wapato, and Sunnyside canals in southcentral Washington State. Screen integrity tests indicated that fish released in front of the screens were prevented from entering the canal behind the screens. We conducted descaling tests at the Toppenish Creek Screens. We measured the time required for fish to move through the screen facilities. Methods used in 1988 were the same as those used at Sunnyside in 1985 and in subsequent years at Richland. Toppenish/Satus, and Wapato. 11 refs., 11 figs., 14 tabs.

  19. Fisheries studies and stock evaluation of shrimp scad, Alepes djedaba (Teleostei:Carangidae) caught from Arabian Gulf

    Institute of Scientific and Technical Information of China (English)

    Medhat Abdel Barr; Amany Mohammed Osman; Hayam Abdulla Al Abdulhadi

    2014-01-01

    Objective: To evaluate the stock of Alepes djedaba (A. djedaba) by describing the length composition, growth parameters, mortality rates of A. djedaba captured in Arabian Gulf off Saudi Arabia and adopting yield per recruit and biomass per recruit models. Methods:A random sample of 490 fish representing a moderate range of total lengths (16.5-32.4cm) and weights (60-410 g) were sampled in Arabian Gulf off Dammam, Saudi Arabia during the period from August 2008 to July 2009. LFD5 software was used for estimation of growth parameters. Total mortality was calculated using the length converted catch curve. Natural mortality was estimated using Pauly and David's formula. Fishing mortality was computed by subtracting natural mortality from total mortality. Per recruit analysis was made using Beverton and Holt model. Results:Length-frequency analysis revealed four peaks and the length range from 22 cm to 27 cm dominated the catch, constituting about 71% of the catch. Values of the von Bertalanffy growth parameters were computed using LFD5 software as follows: the asymptotic length (Lg)=41.71 cm, curvature parameter (K)= 0.36 year-1, and hypothetic age at zero length (t0) = -0.76 year. The total mortality (Z) was estimated as 2.07 year-1, and natural mortality was 0.8 year-1. Fishing mortalityF=1.27 year-1 , which was higher than F0.1 (0.3 year-1), FSB(50) (0.59 year-1) and FSB(40) (0.86 year-1). Atthe current levels of fishing and natural mortality, the biomass per recruit is 34% of the virgin biomass. Conclusions:These may indicate an overexploitation state of the fisheries of A. djedaba in Arabian Gulf .

  20. Empirical Evidence for Species-Specific Export of Fish Naivete from a No-Take Marine Protected Area in a Coastal Recreational Hook and Line Fishery.

    Directory of Open Access Journals (Sweden)

    Josep Alós

    Full Text Available No-take marine protected areas (MPAs are assumed to enhance fisheries catch via the "spillover" effect, where biomass is exported to adjacent exploited areas. Recent studies in spearfishing fisheries suggest that the spillover of gear-naïve individuals from protected to unprotected sites increases catch rates outside the boundaries of MPAs. Whether this is a widespread phenomenon that also holds for other gear types and species is unknown. In this study, we tested if the distance to a Mediterranean MPA predicted the degree of vulnerability to hook and line in four small-bodied coastal fish species. With the assistance of underwater video recording, we investigated the interaction effect of the distance to the boundary of an MPA and species type relative to the latency time to ingest a natural bait, which was considered as a surrogate of fish naïveté or vulnerability to fishing. Vulnerability to angling increased (i.e., latency time decreased within and near the boundary of an MPA for an intrinsically highly catchable species (Serranus scriba, while it remained constant for an intrinsically uncatchable control species (Chromis chromis. While all of the individuals of S. scriba observed within the MPA and surrounding areas were in essence captured by angling gear, only one fifth of individuals in the far locations were captured. This supports the potential for the spillover of gear-naïve and consequently more vulnerable fish from no-take MPAs. Two other species initially characterized as intermediately catchable (Coris julis and Diplodus annularis also had a shorter latency time in the vicinity of an MPA, but for these two cases the trend was not statistically significant. Overall, our results suggest that an MPA-induced naïveté effect may not be universal and may be confined to only intrinsically highly catchable fish species. This fact emphasizes the importance of considering the behavioural dimension when predicting the outcomes of MPAs

  1. Development of a systemwide predator control program: Stepwise implementation of a predation index, predator control fisheries, and evaluation plan in the Columbia River Basin. Section 1: Implementation. Annual report 1994

    International Nuclear Information System (INIS)

    The authors report the results from the forth year of a basinwide program to harvest northern squawfish (Ptychocheilus oregonensis) in an effort to reduce mortality due to northern squawfish predation on juvenile salmonids during their emigration from natal streams to the ocean. Earlier work in the Columbia River Basin suggested predation by northern squawfish on juvenile salmonids may account for most of the 10--20% mortality juvenile salmonids experience in each of eight Columbia and Snake River reservoirs. Modeling simulations based on work in John Day Reservoir from 1982 through 1988 indicated it is not necessary to eradicate northern squawfish to substantially reduce predation-caused mortality of juvenile salmonids. Instead, if northern squawfish were exploited at a 10--20% rate, reductions in numbers of larger, older fish resulting in restructuring of their population could reduce their predation on juvenile salmonids by 50% or more. Consequently, the authors designed and tested a sport-reward angling fishery and a commercial longline fishery in the John Day pool in 1990. They also conducted an angling fishery in areas inaccessible to the public at four dams on the mainstem Columbia River and at Ice Harbor Dam on the Snake River. Based on the success of these limited efforts, they implemented three test fisheries on a multi-pool, or systemwide, scale in 1991--a tribal longline fishery above Bonneville Dam, a sport-reward fishery, and a dam-angling fishery

  2. 78 FR 17886 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2013-03-25

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA) for 96 hours. This action is necessary to fully use the 2013... FR 15643, March 12, 2012). As of March 18, 2013, NMFS has determined that approximately 2,400...

  3. 78 FR 9849 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2013-02-12

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA). This action is necessary to fully use the 2013 total... (78 FR 5145, January 24, 2012). As of February 5, 2013, NMFS has determined that approximately...

  4. 77 FR 64917 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2012-10-24

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 610 of the Gulf of Alaska (GOA) for 96 hours. This action is necessary to fully use the 2012... (77 FR 64240, October 19, 2012). As of October 17, 2012, NMFS has determined that approximately...

  5. 78 FR 5145 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2013-01-24

    ...NMFS is prohibiting directed fishing for pollock in Statistical Area 630 in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the A season allowance of the 2013 total allowable catch of pollock for Statistical Area 630 in the...

  6. 77 FR 16950 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2012-03-23

    ... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... Statistical Area 630 of the Gulf of Alaska (GOA) for 72 hours. This action is necessary to fully use the B... FR 14698, March 13, 2012). As of March 15, 2012, NMFS has determined that approximately 1,389...

  7. 78 FR 57318 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2013-09-18

    ...NMFS is prohibiting directed fishing for pollock in Statistical Area 630 in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance of the 2013 total allowable catch of pollock for Statistical Area 630 in the...

  8. 77 FR 11776 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2012-02-28

    ...NMFS is prohibiting directed fishing for pollock in Statistical Area 630 in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the A season allowance of the 2012 total allowable catch of pollock for Statistical Area 630 in the...

  9. 75 FR 55288 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2010-09-10

    ...NMFS is prohibiting directed fishing for pollock in Statistical Area 620 in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance of the 2010 total allowable catch (TAC) of pollock for Statistical Area 620 in the...

  10. Marine Ecological Footprint of Italian Mediterranean Fisheries

    Directory of Open Access Journals (Sweden)

    Federica de Leo

    2014-10-01

    Full Text Available The capacity of marine and coastal ecosystems to sustain seafood production and consumption is seldom accounted for and is not included in the signals that guide economic development. In this article, we review estimates of marine and coastal areas aimed at sustaining catches for seafood consumption. The aim of this paper is the assessment of the interactions between the environment, intended as a set of ecological subsystems in natural equilibrium, including the marine ecosystem, and the process of fisheries systems. In particular we analyze fisheries in Italy, which is the third biggest economy and the greatest consumer of seafood in the Eurozone, conducting an in-depth analysis of the Marine Ecological Footprint (MEF that evaluates the marine ecosystem area exploited by human populations to supply seafood and other marine products and services. The positioning of Italian fisheries shows a level of sustainability next to the threshold value. The analysis in the present study highlights the importance of absolute indicators in providing rough estimates about human dependence on ecological systems and recognizes the importance of those indicators, such as the Marine Footprint (expressed in % of Primary Production Required/Primary Production, in ensuring a high level of precision and accuracy in quantifying human activity impact on the environment.

  11. Central Facilities Area Sewage Lagoon Evaluation

    Energy Technology Data Exchange (ETDEWEB)

    Giesbrecht, Alan [Idaho National Lab. (INL), Idaho Falls, ID (United States)

    2015-03-01

    The Central Facilities Area (CFA) located in Butte County, Idaho at Idaho National Laboratory (INL) has an existing wastewater system to collect and treat sanitary wastewater and non contact cooling water from the facility. The existing treatment facility consists of three cells: Cell 1 has a surface area of 1.7 acres, Cell 2 has a surface area of 10.3 acres, and Cell 3 has a surface area of 0.5 acres. If flows exceed the evaporative capacity of the cells, wastewater is discharged to a 73.5 acre land application site that utilizes a center pivot irrigation sprinkler system. The purpose of this current study is to update the analysis and conclusions of the December 2013 study. In this current study, the new seepage rate and influent flow rate data have been used to update the calculations, model, and analysis.

  12. An empirical test of the 'shark nursery area concept' in Texas bays using a long-term fisheries-independent data set

    Science.gov (United States)

    Froeschke, John T.; Stunz, Gregory W.; Sterba-Boatwright, Blair; Wildhaber, Mark L.

    2010-01-01

    Using a long-term fisheries-independent data set, we tested the 'shark nursery area concept' proposed by Heupel et al. (2007) with the suggested working assumptions that a shark nursery habitat would: (1) have an abundance of immature sharks greater than the mean abundance across all habitats where they occur; (2) be used by sharks repeatedly through time (years); and (3) see immature sharks remaining within the habitat for extended periods of time. We tested this concept using young-of-the-year (age 0) and juvenile (age 1+ yr) bull sharks Carcharhinus leucas from gill-net surveys conducted in Texas bays from 1976 to 2006 to estimate the potential nursery function of 9 coastal bays. Of the 9 bay systems considered as potential nursery habitat, only Matagorda Bay satisfied all 3 criteria for young-of-the-year bull sharks. Both Matagorda and San Antonio Bays met the criteria for juvenile bull sharks. Through these analyses we examined the utility of this approach for characterizing nursery areas and we also describe some practical considerations, such as the influence of the temporal or spatial scales considered when applying the nursery role concept to shark populations.

  13. Ecological footprint evaluation of improved student’s menus using fishery products

    Directory of Open Access Journals (Sweden)

    Iuliana Vintilă

    2010-11-01

    Full Text Available The ecological footprints (EF analyses were conducted in order to evaluate the environmentimpact of improving actual catering system by replacing 50-100% of red meat products (beef withlocal/regional fishy products in the weekly meals created for “Dunarea de Jos” University (UGALstudents in 2010. Product-specific EF was calculated from consistent and quality-controlled life cycleinformation of food products and services, including energy, materials, transport, waste treatment andinfrastructural processes. The reducing of red meat products in the student’s daily menus with 50% andthe reducing of long food chain at the local/regional level determined a 36.24% average decreasing ofactual menu EF and the replacing of red meat with fishy products a 72.2% reducing of Eco-menus EF. Atleast 20.83% less amount of money could be saved in the menu creations and if we replace one day in aweek 50% meat with local fishy products and the average reducing EF for menu creation in an academicyear could be in average 17.27%.

  14. A Fisheries Evaluation of the Richland and Wapato Canal Fish Screening Facilities, Spring 1987 : Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Neitzel, Duane A.; Abernethy, C.Scott; Lusty, E.William; Wampler, Sally J.

    1988-02-01

    We evaluated the effectiveness of new fish screening facilities at the Richland and Wapato canals in south-central Washington State. The screen integrity tests at the Richland Screens indicated that 100% of fall chinook salmon fry (Oncorhynchus tshawytscha) released in front of the screens were prevented from entering the canal behind the screens. Our estimate is based on a 61% catch efficiency for control fish planted behind the screens. At the Wapato Canal, we estimated that between 3% and 4% of the test fish were either impinged on the screen surface and passed over the screens or passed through faulty screen seals. Our estimate is based over the screens or passed through faulty screen seals. Our estimate is based on a greater than 90% capture of control fish released in front of the screens. At the Wapato Screens, we estimated that 0.8% of steelhead smolts (Salmo gairdneri) and 1.4% of spring chinook salmon smolts released during low canal flow tests wee descaled. During full canal flow tests, 1.6% of the steelhead and 3.1% of the spring chinook salmon released were descaled. The fish return pipe at the Wapato Canal was tested: the estimate of descaled test fish wa not different from the estimate of descaled control fish. The time required for fish to exit from the Wapato Screen forebay varied with species and with canal flow. During low canal flows, 43.2% of steelhead and 61.6% of spring chinook salmon smolts released at the trash racks were captured in the fish return within 96 hr. 11 refs., 11 figs., 10 tabs.

  15. Bycatch of franciscana dolphins Pontoporia blainvillei and the dynamic of artisanal fisheries in the species' southernmost area of distribution

    Directory of Open Access Journals (Sweden)

    María Fernanda Negri

    2012-06-01

    Full Text Available In Argentina, the franciscana dolphin is one of the most vulnerable cetaceans regularly entangled in coastal artisanal fishery nets. The aim of this paper is to estimate the species' incidental mortality on the Southern coast of Buenos Aires province through interviews with the captains of artisanal fishing vessels, in the period 2006-2009. Franciscana bycatch was reported for gillnets and shrimper gear all year round but it occurred more frequently between October and February, at 5 km offshore and 10-20 m depth. The estimated mean annual incidental mortality was 107 dolphins (CI 95% = 87-129, 92 caught in gillnets (CI 95% = 73-112 and 15 in shrimpers' gear (CI 95% = 8-25 with a capture per unit effort of 0.029 dolphins per km of gillnet (CI 95% = 0.023-0.036 and 0.022 per shrimpe r's net (CI 95% = 0.012-0.035. Annual fluctuations were due to differences in the number of gillnetting fishing days. If mortality estimates for the Northern coast are also taken into account, values attain a maximum of 360-539 dolphins bycaught in the entire Buenos Aires province, representing 2.5-3.7% of the species' abundance in Argentina. This will inevitably lead to the decline of franciscana dolphin populations in the near future unless alternative fishing grounds are identified and alternative gearadopted.Na Argentina, a toninha é um dos cetáceos mais vulneráveis devido às capturas por rede de pesca artesanal. O presente estudo teve como objetivo estimar as capturas acidentais no sul da província de Buenos Aires, através de entrevistas aos capitães de barcos de pesca artesanal, entre os anos 2006-2009. As capturas foram reportadas para redes de emalhe e de camarão; com as mais altas frequências entre outubro e fevereiro, a 5 km da costa e 10-20 m de profundidade. A mortalidade acidental média anual estimada foi de 107 golfinhos (IC 95% = 87-129, 92 em redes de emalhe (IC 95% = 73-112 e 15 em redes de camarão (IC 95% = 8-25, com uma captura de 0

  16. Development of a System-Wide Predator Control Program : Stepwise Implementation of a Predation Index, Predator Control Fisheries and Evaluation Plan in the Columbia River Basin, 1991 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Nigro, Anthony A.; Willis, Charles F.

    1993-02-01

    We report our results from the first year of a basin-wide program to harvest northern squawfish in an effort to reduce mortality due to northern squawfish predation on juvenile salmonids during their emigration from natal streams to the ocean. Earlier work in the Columbia River basin suggested predation by northern squawfish on juvenile salmonids may account for most of the 10 to 20 percent mortality juvenile salmonids experience in each of eight Columbia and Snake river reservoirs. Modeling simulations based on work in John Day Reservoir from 1982 through 1988 indicated it is not necessary to eradicate northern squawfish to substantially reduce predation-caused mortality of juvenile salmonids. Instead, if northern squawfish were exploited at a 10 to 20 percent rate, reductions in their numbers and restructuring of their populations could reduce their predation on juvenile salmonids by 50 percent or more. Consequently, we designed and tested a sport reward hook-and-line fishery and a longline fishery in the John Day pool in 1990. Based on the successfulness of these limited efforts, we implemented three test fisheries on a multi-pool or system wide scale in 1991: a tribal longline fishery, a sport reward fishery, and a dam angling (hook-and-line) fishery. In addition, we examined several alternative harvest techniques to determine their potential for use in system-wide test fisheries. Evaluation of the success of the three test fisheries conducted in 1991 in achieving a 20 percent exploitation rate on northern squawfish, together with information regarding the economic, social, and legal feasibility of sustaining each fishery, is presented in Section II of this report.

  17. Scientific, Technical and Economic Committee for Fisheries (STECF) -Evaluation/scoping of Management plans - Evaluation of the multi-annual management plan for the North Sea stocks of plaice and sole(STECF-14-03). 2014.

    OpenAIRE

    2014-01-01

    The Expert Working Group meeting of the Scientific, Technical and Economic Committee for Fisheries EWG-14-03 on Evaluation/scoping of Management plans. Evaluation of the multi-annual management plan for the North Sea stocks of plaice and sole was held from 10-14 March 2014 in Varese, Italy. The report was reviewed and endorsed by the STECF during its plenary meeting held from 24 to 28 March 2014 in Brussels (Belgium).

  18. Scientific, Technical and Economic Committee for Fisheries (STECF) - Evaluation/scoping of Management plans - Evaluation of the multi-annual plan for the management of Western Channel sole (Regulation EC 509/2007)(STECF-14-04)

    OpenAIRE

    2014-01-01

    The Expert Working Group meeting of the Scientific, Technical and Economic Committee for Fisheries EWG-14-03 on Evaluation/scoping of Management plans. Evaluation of the multi-annual plan for the management of Western Channel sole (Regulation EC 509/2007) was held from 10-14 March 2014 in Varese, Italy. The report was reviewed and endorsed by the STECF during its plenary meeting held from 24 to 28 March 2014 in Brussels (Belgium).

  19. 78 FR 27863 - Fisheries of the Exclusive Economic Zone Off Alaska; Big Skate in the Central Regulatory Area of...

    Science.gov (United States)

    2013-05-13

    ... established by the final 2013 and 2014 harvest specifications for groundfish of the GOA (78 FR 13162, February... of the Gulf of Alaska (GOA). This action is necessary because the 2013 total allowable catch of big skate in the Central Regulatory Area of the GOA has been reached. DATES: Effective 1200 hrs,...

  20. 75 FR 9534 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2010-03-03

    ... (74 FR 7333, February 17, 2009) and inseason adjustment (74 FR 68713, December 29, 2009). In... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the A season allowance of the 2010 total allowable catch (TAC) of pollock for Statistical Area 610 in the GOA. ]...

  1. 75 FR 73981 - Fisheries of the Exclusive Economic Zone Off Alaska; Big Skate in the Central Regulatory Area of...

    Science.gov (United States)

    2010-11-30

    ... and 2011 harvest specifications for groundfish of the GOA (75 FR 11749, March 12, 2010). In accordance... of the Gulf of Alaska (GOA). This action is necessary because the 2010 total allowable catch (TAC) of big skate in the Central Regulatory Area of the GOA has been reached. DATES: Effective 1200...

  2. 75 FR 56018 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2010-09-15

    ... (75 FR 11749, March 12, 2010). In accordance with Sec. 679.20(a)(5)(iv)(B) the Administrator, Alaska... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance of the 2010 total allowable catch (TAC) of pollock for Statistical Area 610 in the GOA. DATES:...

  3. 77 FR 75399 - Fisheries of the Exclusive Economic Zone Off Alaska; Big Skate in the Central Regulatory Area of...

    Science.gov (United States)

    2012-12-20

    ... established by the final 2012 and 2013 harvest specifications for groundfish of the GOA (77 FR 15194, March 14... of the Gulf of Alaska (GOA). This action is necessary because the 2012 total allowable catch of big skate in the Central Regulatory Area of the GOA has been reached. DATES: Effective 1200 hrs,...

  4. 75 FR 63104 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2010-10-14

    ... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the 2010 total allowable... 2011 harvest specifications for groundfish of the GOA (75 FR 11749, March 12, 2010). In accordance...

  5. 77 FR 20317 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf...

    Science.gov (United States)

    2012-04-04

    ... (77 FR 15194, March 14, 2012). In accordance with Sec. 679.20(a)(5)(iv)(B), the Administrator, Alaska... Economic Zone Off Alaska; Pollock in Statistical Area 610 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the B season allowance...

  6. 75 FR 62482 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf...

    Science.gov (United States)

    2010-10-12

    ... Economic Zone Off Alaska; Pollock in Statistical Area 620 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the 2010 total allowable... 2011 harvest specifications for groundfish of the GOA (75 FR 11749, March 12, 2010). In accordance...

  7. 75 FR 52891 - Fisheries of the Exclusive Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf...

    Science.gov (United States)

    2010-08-30

    ... (75 FR 11749, March 12, 2010). In accordance with Sec. 679.20(a)(5)(iv)(B) the Administrator, Alaska... Economic Zone Off Alaska; Pollock in Statistical Area 630 in the Gulf of Alaska AGENCY: National Marine... in the Gulf of Alaska (GOA). This action is necessary to prevent exceeding the C season allowance...

  8. Benthic habitat map of the U.S. Coral Reef Task Force Watershed Partnership Initiative Kā'anapali priority study area and the State of Hawai'i Kahekili Herbivore Fisheries Management Area, west-central Maui, Hawai'i

    Science.gov (United States)

    Cochran, Susan A.; Gibbs, Ann E.; White, Darla J.

    2014-01-01

    Nearshore areas off of west-central Maui, Hawai‘i, once dominated by abundant coral coverage, now are characterized by an increased abundance of turf algae and macroalgae. In an effort to improve the health and resilience of the coral reef system, the Kahekili Herbivore Fisheries Management Area was established by the State of Hawai‘i, and the U.S. Coral Reef Task Force selected the Kā‘anapali region as a priority study area. To support these efforts, the U.S. Geological survey mapped nearly 5 km2 of sea floor from the shoreline to water depths of about 30 m. Unconsolidated sediment (predominantly sand) constitutes 65 percent of the sea floor in the mapped area. Reef and other hardbottom potentially available for coral recruitments constitutes 35 percent of the mapped area. Of this potentially available hardbottom, only 51 percent is covered with a minimum of 10 percent coral, and most is found between 5 and 10 m water depth.

  9. Challenges in integrating short-term behaviour in a mixed-fishery Management Strategies Evaluation frame: a case study of the North Sea flatfish fishery

    DEFF Research Database (Denmark)

    Andersen, Bo Sølgaard; Vermard, Youen; Ulrich, Clara;

    2010-01-01

    . A simplified random utility model was used based on the expected revenue (or economic attractiveness) and two tradition parameters related to short and long term historical fishing patterns. All three parameters were significant. Even though reactions and adaptations vary between fleets, the...... estimated conservative behaviour of the main fleets led to only marginal effect at the stock level. The importance of accounting for fleet behaviour was then evaluated using an elasticity analysis to explore how increased weight of economic attractiveness contributes to changes in the biological output and...

  10. 76 FR 54739 - Pacific Halibut Fishery; Guideline Harvest Levels for the Guided Sport Fishery for Pacific...

    Science.gov (United States)

    2011-09-02

    ... NMFS' authority to take action at any time to limit the guided sport angler catch to the GHL (74 FR... the guided sport halibut fishery in Areas 2C and 3A on January 5, 2010 (75 FR 554). As of February 1... guided sport and commercial fisheries in Areas 2C and 3A (76 FR 44156). If approved by the Secretary...

  11. Loggerhead sea turtle bycatch data in artisanal fisheries within a marine protected area: fishermen surveys versus scientific observations

    Directory of Open Access Journals (Sweden)

    Lozano, M.

    2011-06-01

    Full Text Available Loggerhead sea turtles can be incidentally captured by artisanal gears but information about the impact of this fishing is inconsistent and scarce. Recent studies have observed that the bycatch, or incidental catch rate, in fishermen surveys is irregular. The aim of this study was to compare direct data (onboard observers concerning the incidental catch of loggerhead sea turtles by the artisanal vessels versus data from fishermen surveys. The study area was the Cabo de Gata-Níjar marine protected area, situated in the western Mediterranean (southeast of the Iberian peninsula. We observed two loggerhead turtles that were incidentally caught in a total of 165 fishing operations. According to fishermen surveys, a total of nine loggerheads were incidentally caught in 861 fishing operations. The differences between the loggerhead sea turtle bycatch reported by fishermen surveys and scientific observations versus random distribution (x2 = 0.3146, P = 0.575, df = 1 were not significant. We conclude that the surveys are useful but that findings should be interpreted with caution.

  12. Coeur d'Alene Tribe Fisheries Program Research, Monitoring and Evaluation Plan; Implementation of Fisheries Enhancement Opportunities on the Coeur d'Alene Reservation, 1997-2002 Technical Report.

    Energy Technology Data Exchange (ETDEWEB)

    Vitale, Angelo; Lamb, Dave; Peters, Ronald

    2002-11-01

    channel forms. In addition, ponds have been constructed to trap sediment from rill and gully erosion associated with agricultural practices, and to provide flow enhancement and ameliorate elevated stream temperatures during the summer base flow period. The implementation of restoration efforts that target the key habitats and lifestages for resident westslope cutthroat trout on the Coeur d'Alene Reservation is one means the Tribe is using to partially mitigate for lost anadromous fisheries. In this context, restoration is consistent with the definition provided by Ebersole et al. (1997), who described stream restoration as the reexpression of habitat capacity in a stream system. At the reach scale, habitat capacity is affected by biotic (e.g., riparian vegetation) and physical (e.g., flooding) processes. Superimposed on the natural biotic and physical processes are anthropogenic stressors (e.g., logging, roads and grazing) that suppress habitat capacity and can result in simplified, degraded stream reaches. The effectiveness of habitat restoration, measured as an increase in native trout abundance, is dependent on reducing limiting factors (e.g., passage barriers, high water temperatures, sediment transport from source areas) in areas that are critical for spawning and rearing lifestages. This plan outlines a monitoring strategy to help determine the effectiveness of specific restoration/enhancement treatments and to track the status of trout populations in four target watersheds.

  13. Development of a System-Wide Predator Control Program : Stepwise Implementation of a Predation Index Predator Control Fisheries and Evaluation Plan in the Columbia River Basin, 1990 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Nigro, Anthony A.

    1990-12-01

    The papers in this document report the results of studies to develop a Columbia River basin-wide program to control northern squawfish predation on juvenile salmonids. Our studies focus on (1) determining where in the basin northern squawfish predation is a problem, (2) conducting various fisheries for northern squawfish, and (3) testing a plan to evaluate how well fisheries are controlling northern squawfish populations. These studies were initiated as part of a basin-wide effort to reduce mortality of juvenile salmonids on their journey from natal streams to the ocean. Earlier work in the Columbia River basin suggested predation by northern squawfish on juvenile salmonids may account for most of the 10 to 20 percent mortality juvenile salmonids experience in each of eight Columbia and Snake river reservoirs. Modeling simulations based on work in John Day Reservoir from 1982--1988 indicated it is not necessary to eradicate northern squawfish to substantially reduce predation-caused mortality of juvenile salmonids. Instead, if northern squawfish were exploited at a 20 percent rate, reductions in their numbers and restructuring of their populations could reduce their predation on juvenile salmonids by 50 percent. We tested three fisheries in 1990, a tribal long-line fishery, a recreational-reward fishery, and a dam hook-and-line fishery.

  14. A HEALTHY APPROACH TO HEALTHY FOOD FROM THE HEALTHY SEA: EVALUATION OF FISH ORIGINATING FROM THE PROTECTED AREA

    Directory of Open Access Journals (Sweden)

    Ivana Bušelić

    2012-12-01

    Full Text Available The Lastovo Archipelago Nature Park (NP adopted a special fishing protocol in conformity with its Code of Conduct. The present study analyses the littoral fisheries resources of the NP and compares them to baseline data from 2010 to evaluate possible changes produced by the proclaimed fisheries management. Littoral fisheries resources were sampled by experimental trammel net. Analyses were performed on total fish abundance and biomass, diversity indices and multivariate abundance and biomass structure of caught assemblages. Although no significant difference in the catches was found regarding average species richness, total abundance and biomass, there appears to be a weak indication of change. Namely, an inclining trend was observed at protected zones (14% higher species richness, 9% higher total abundance and 19% higher total biomass, while fishing zones showed a declining trend (7% lower species richness, 12% lower total abundance and 24% lower total biomass. Since the variation in average species richness, total abundance and biomass is not significant and could therefore be coincidental (reflecting natural spatial and temporal variability, it is necessary to analyse the 2012 catch data in order to establish whether the observed trends continued and whether they could be attributed to differing levels of protection. Average catch per unit effort - CPUE (unit effort being a 33 m long trammel net is x ± SE = 1,6 ± 0,1 kg / net, which is rated as a 'very good' catch. In this respect the situation is quite favourable in the study area compared to many other sites in the Adriatic. However, biometry characteristics of commercially highly valuable and thus most targeted species show that average landing sizes are more than half the size of those attainable. Overall, plausible explanation for the observed limited effects of protection for the recovery of fisheries resources to date is that not enough time has passed to allow for significant

  15. CROATIAN FRESHWATER FISHERY

    OpenAIRE

    Višnja Knjaz

    2007-01-01

    The basic characteristics of freshwater fishery in Croatia are predominantly negative trend in the past twenty years. Even though the total fish pond area covers more than 12,000 hectares, only 6,200 hectares of carp ponds and 58,700 m2 of trout ponds have been exploited. In 2006 the production of total freshwater fish reached 6,547 tons, out of which the production of consumable fish amounted to 5,067 tons and the juveniles 1,480 tons. The export of freshwater fish to EU countries, Macedonia...

  16. Fishery of the Uçá Crab Ucides Cordatus (Linnaeus, 1763) in a Mangrove Area in Cananéia, State of São Paulo, Brazil: Fishery Performance, Exploitation Patterns and Factors Affecting the Catches

    OpenAIRE

    Luis Felipe de Almeida Duarte; Ricardo Santos Duran; Jocemar Tomasino Mendonça; Marcelo Antonio Amaro Pinheiro

    2014-01-01

    The fishery of the mangrove crab (Ucides cordatus) is one of the oldest sources of food, income and extractive activity in the estuarine systems of Brazil. The state of São Paulo has the largest population of any Brazilian state, and the city of Cananéia, in the Brazilian southeast has the highest recorded level of exploitation of the uçá-crab. Since 1990, this species has been under intense exploitation pressure due to the unauthorized use of a type of trap called 'redinha'. This type of fis...

  17. Evaluation of the current state of small pelagic fisheries in the Colombian Pacific: ensuring the sustainability of the resource and evaluating its response to climatic events

    Science.gov (United States)

    Zapata, L. A.; Beltrán-León, B. S.; Herrera, J. C.; Jiménez-Tello, P.; Prieto, L. M.; Baos, R. A.; Guevara-Fletcher, C.; Zambrano, E.

    2013-04-01

    Commercial fishing of small pelagic species in Colombia, mainly "carduma" (Cetengraulis mysticetus) and "plumuda" (Opisthonema spp.), has been recorded since 1970. Both are used to produce fish meal for aquaculture and poultry and for canned foods. These two species are filter feeders, and therefore support higher levels of the food chain (other fish, birds and marine mammals), and artisanal fishermen use them as bait. Between 2005 and 2010, 86.131 t have been captured (X = 14.355 t yr-1), and a strong reduction was noticed in 2009 (6.969 t). Carduma is considered a total spawning species. However, from 1997 to 2000 and from 2008 to date, atypical reproductive behavior of the species has been observed, including partition of the spawning period and the reduction of the volume of eggs and larvae released to the environment. Both situations are linked to thermal anomalies such as El Niño and La Niña events. Therefore, the process of assigning the global quota of extraction has been revised to take into account the reduction of total capture during the last years and the inconsistencies of the reproductive processes. The Ministry of Agriculture reduced the quota by 10%, leaving available a total of 27 000 t for 2010 and reduced it again to 25 000 t for 2011. It is important to maintain the management measures that are already implemented on this resource (bans during reproduction seasons, catch quotas, regulation of mesh sizes for the fishing nets, and limiting the number of new vessels) and considering other measures such as season closure for recruitment and establishment of marine protected areas to further contribute to the sustainability of these fisheries.

  18. Aquatic Natural Areas Analysis and Evaluation: Oak Ridge Reservation

    Energy Technology Data Exchange (ETDEWEB)

    Baranski, Dr. Michael J. [Catawba College

    2011-04-01

    This report presents an assessment of the natural area value of eight Aquatic Natural Areas (ANAs) and seven Aquatic Reference Areas (ARAs) on the Oak Ridge Reservation (ORR) in Anderson and Roane Counties in east Tennessee. It follows a previous study in 2009 that analyzed and evaluated terrestrial natural areas on the Reservation. The purpose of both studies was to evaluate and rank those specially designated areas on the Reservation that contain sensitive species, special habitats, and natural area value. Natural areas receive special protections through established statutes, regulations, and policies. The ORR contains 33,542 acres (13,574 ha) administered by the Department of Energy. The surface waters of the Reservation range from 1st-order to 5th-order streams, but the majority of the streams recognized as ANAs and ARAs are 1st- and 2nd-order streams. East Fork Poplar Creek is a 4th-order stream and the largest watershed that drains Reservation lands. All the waters of the Reservation eventually reach the Clinch River on the southern and western boundaries of the ORR. All available information was collected, synthesized, and evaluated. Field observations were made to support and supplement the available information. Geographic information system mapping techniques were used to develop several quantitative attributes about the study areas. Narrative descriptions of each ANA and ARA and tables of numerical data were prepared. Criteria for assessment and evaluation were developed, and eight categories of factors were devised to produce a ranking system. The evaluation factors used in the ranking system were: (A) size of area, (B) percentage of watershed protected, (C) taxa present with protected status, (D) overall biotic diversity, (E) stream features, (F) water quality and use support ratings, (G) disturbance regime, and (H) other factors. Each factor was evaluated on a 5-point ranking scale (0-4), and each area received a composite score, where 32 was the

  19. Development of a systemwide predator control program: Stepwise implementation of a predation index, predator control fisheries, and evaluation plan in the Columbia River Basin. Section 2: Evaluation, Annual Report 1994

    International Nuclear Information System (INIS)

    The authors are reporting progress on evaluation of the Northern Squawfish Management Program in 1994. The objectives in 1994 were to (1) evaluate exploitation rate, size composition, and incidental catch of northern squawfish (Ptychocheilus oregonensis) captured in the various fisheries and estimate reductions in predation on juvenile salmonids since implementation of the management program, and (2) evaluate changes through 1994 in relative abundance, smolt consumption rate, size and age structure, growth, and fecundity of northern squawfish in lower Columbia and Snake River reservoirs and in the Columbia River downstream from Bonneville Dam

  20. Ocean acidification risk assessment for Alaska's fishery sector

    Science.gov (United States)

    Mathis, J. T.; Cooley, S. R.; Lucey, N.; Colt, S.; Ekstrom, J.; Hurst, T.; Hauri, C.; Evans, W.; Cross, J. N.; Feely, R. A.

    2015-08-01

    The highly productive fisheries of Alaska are located in seas projected to experience strong global change, including rapid transitions in temperature and ocean acidification-driven changes in pH and other chemical parameters. Many of the marine organisms that are most intensely affected by ocean acidification (OA) contribute substantially to the state's commercial fisheries and traditional subsistence way of life. Prior studies of OA's potential impacts on human communities have focused only on possible direct economic losses from specific scenarios of human dependence on commercial harvests and damages to marine species. However, other economic and social impacts, such as changes in food security or livelihoods, are also likely to result from climate change. This study evaluates patterns of dependence on marine resources within Alaska that could be negatively impacted by OA and current community characteristics to assess the potential risk to the fishery sector from OA. Here, we used a risk assessment framework based on one developed by the Intergovernmental Panel on Climate Change to analyze earth-system global ocean model hindcasts and projections of ocean chemistry, fisheries harvest data, and demographic information. The fisheries examined were: shellfish, salmon and other finfish. The final index incorporates all of these data to compare overall risk among Alaska's federally designated census areas. The analysis showed that regions in southeast and southwest Alaska that are highly reliant on fishery harvests and have relatively lower incomes and employment alternatives likely face the highest risk from OA. Although this study is an intermediate step toward our full understanding, the results presented here show that OA merits consideration in policy planning, as it may represent another challenge to Alaskan communities, some of which are already under acute socio-economic strains.

  1. Reproductive Ecology of Yakima River Hatchery and Wild Spring Chinook; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2005-2006 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Knedsen, Curtis M. (Oncorh Consulting, Olympia, WA); Schroder, Steven L. (Washington Department of Fish and Wildlife, Olympia, WA); Johnston, Mark V. (Yakama Nation, Toppenish, WA)

    2006-05-01

    This report covers three of many topics under the Yakima/Klickitat Fisheries Project's Monitoring and Evaluation Program (YKFPME) and was completed by Oncorh Consulting as a contract deliverable to the Yakama Nation and Washington Department of Fish and Wildlife. The YKFPME (Project Number 1995-063-25) is funded under two BPA contracts, one for the Yakama Nation (Contract No. 00022449) and the other for the Washington Department of Fish and Wildlife (Contract No. 22370). A comprehensive summary report for all of the monitoring and evaluation topics will be submitted after all of the topical reports are completed. This approach to reporting enhances the ability of people to get the information they want, enhances timely reporting of results, and provides a condensed synthesis of the whole YKFPME.

  2. Radiation detection technique on the fishery foods

    International Nuclear Information System (INIS)

    According to necessity on preliminary establishment of a technique to detect scientifically conducts of radiation to individual food such as fishery foods and on preparation of a detectable system, the present project was started under five year planning since 1994 fiscal year to aim referring research results of the agricultural and the fishery products and the species because of beginning to publish those reaching actual area and finding a detection technique based on fishery features. In 1996 fiscal year, in order to study further on adaptability of tyrosine isomer for detection index in shrimps, relationships between radiation dose and production of the tyrosine isomer were examined. And, for detection index of fisheries, in order to search probability of hydro-carbon production in irradiated fisheries was attempted and a relationship between its production and radiation dose was investigated. (G.K.)

  3. Fishery Performance Indicators

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Performance indicators for landings, effort, revenue and distribution of revenue are collected for various fisheries nation-wide. The fisheries include catch and...

  4. Reservoir fisheries of Asia

    International Nuclear Information System (INIS)

    At a workshop on reservoir fisheries research, papers were presented on the limnology of reservoirs, the changes that follow impoundment, fisheries management and modelling, and fish culture techniques. Separate abstracts have been prepared for three papers from this workshop

  5. 77 FR 59132 - Fisheries of the Northeastern United States; Northeast Multispecies Fishery; Fishing Year 2012...

    Science.gov (United States)

    2012-09-26

    ... Pool Fishery; Announcement of Fishing Year 2011 Sector Annual Catch Entitlement Carryover AGENCY... affect the ACE available to the market for trading, to the economic detriment of the fishery. Lastly, a... common pool vessels in the distinct Differential DAS Area where each stock is predominantly caught....

  6. 75 FR 79330 - Groundfish Fisheries of the Exclusive Economic Zone Off Alaska; American Fisheries Act...

    Science.gov (United States)

    2010-12-20

    ... Exclusive Economic Zone Off Alaska; American Fisheries Act; Recordkeeping and Reporting AGENCY: National... file formats only. Electronic copies of this rule, the Regulatory Impact Review (RIR), and the... fisheries in the Exclusive Economic Zone of the Bering Sea and Aleutian Islands Management Area under...

  7. Inland capture fisheries

    OpenAIRE

    Welcomme, Robin L.; Cowx, Ian G.; Coates, David; Béné, Christophe; Funge-Smith, Simon; Halls, Ashley; Lorenzen, Kai

    2010-01-01

    The reported annual yield from inland capture fisheries in 2008 was over 10 million tonnes, although real catches are probably considerably higher than this. Inland fisheries are extremely complex, and in many cases poorly understood. The numerous water bodies and small rivers are inhabited by a wide range of species and several types of fisher community with diversified livelihood strategies for whom inland fisheries are extremely important. Many drivers affect the fisheries, including inter...

  8. Natural Areas Analysis and Evaluation: Oak Ridge Reservation

    Energy Technology Data Exchange (ETDEWEB)

    Baranski, Micahel J [self

    2009-11-01

    EXECUTIVE SUMMARY The Oak Ridge Reservation, encompassing 33,639 acres in the Valley and Ridge Physiographic Province of East Tennessee, has long been known for its unfragmented forests and high biodiversity. Many areas on the Reservation have been recognized as important natural areas, but no comprehensive treatment has been performed to evaluate the relative significance and importance of these areas compared to each other. The present study was conducted to develop a set of guidelines for evaluating the natural value of specific areas, to evaluate all the terrestrial areas that are currently delineated, and to rank all areas according to their relative biodiversity importance. All available data, reports and site-specific information relevant to Reservation lands, including Tennessee Division of Natural Areas database information, were evaluated and field work was conducted. Methodologies and criteria for assessment and evaluation of areas were developed; categories of criteria were devised; and a ranking system for evaluation of natural areas was produced. There were 70 areas evaluated during the study. The system is flexible, dynamic and easily revised to reflect updated and new information and interpretations. Eight categories of evaluation factors were established and used to characterize each site. These were the following: size of area, number or status taxa present, number of Endangered and Threatened taxa present, rarity of the Endangered and Threatened taxa on the Reservation, community diversity, site integrity and quality, disturbance and threat levels, and other significant features and factors. Each category generally consisted of a 5-point ranking scale from 0-4, allowing for a possible composite score of 32, with higher ranked, more important, sites attaining higher scores. Highly ranked sites are representative of regional natural diversity; contain outstanding natural features, communities or geology and/or very rare taxa or other elements; are

  9. 76 FR 19748 - Atlantic Coastal Fisheries Cooperative Management Act Provisions; General Provisions for Domestic...

    Science.gov (United States)

    2011-04-08

    ... National Oceanic and Atmospheric Administration RIN 0648-XA312 Atlantic Coastal Fisheries Cooperative Management Act Provisions; General Provisions for Domestic Fisheries; Application for Exempted Fishing...-50 mm carapace length), throughout lobster management area 3 (Area 3), in an attempt to...

  10. 77 FR 66585 - Atlantic Coastal Fisheries Cooperative Management Act Provisions; General Provisions for Domestic...

    Science.gov (United States)

    2012-11-06

    ... National Oceanic and Atmospheric Administration RIN 0648-XC304 Atlantic Coastal Fisheries Cooperative Management Act Provisions; General Provisions for Domestic Fisheries; Application for Exempted Fishing... dispersal and settlement in the offshore Lobster Management Area 3 (Area 3), 11 federally permitted...

  11. 淡水水体渔业碳移出之估算%Evaluation of the carbon removal by fisheries and aquaculture in freshwater bodies

    Institute of Scientific and Technical Information of China (English)

    解绶启; 刘家寿; 李钟杰

    2013-01-01

    of grass carp, crucian carp, common carp and blunthead bream Megalobrama amblycephala from aquaculture feeding on the natural food, the carbon removal by freshwater aquaculture is around 1. 55 million tonnes and about 1. 86 million tonnes of carbon is deposited in feces(the carbon input was not calculated). There are also 0. 278 million tonnes of carbon removed from natural capture fisheries as the production is around 2. 14 million tonnes. Different lakes are varied in ecosystem characteristics and show different ability of carbon removal. The Poyang Lake is a large shallow lake. The carbon removal from Poyang Lake by fisheries was 11. 8~27. 6 kg/hm2 · Yr and its total removal was 3 890~9 061 t/yr, and its total carbon sequestration was 8 558~19 935t/yr during 1950s to 1990s. The Liangzi Lake is a medium shallow lake. Carbon removal by fisheries from Liangzi Lake is around 24~38 t/hm2 · Yr and total removal is 700 ~1 100 t/yr. The Donghu Lake is a eutrophic lake and its fisheries carbon removal is 78 kg/hm2 · Yr and total carbon removal is 260t/yr. The total lake area in the middle and lower reaches of Yangzi River is 16 700 km2 in 1971 and 13 000 km2 in 2000, of which average carbon removal by fisheries is 10~ 30 kg/hm2 · Yr and the total carbon removal by fisheries from all these lakes is 16 700 ~13 000 t/yr and 50 100~ 39 000 t/yr. Freshwater fisheries and aquaculture could remove carbon from freshwater, but also provide food for the human beings. There are still some differences in carbon removal via different calculations.

  12. Lake Roosevelt Fisheries Evaluation Program; Evaluation of Limiting Factors for Stocked Kokanee and Rainbow Trout in Lake Roosevelt, Washington, 1999 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Baldwin, Casey; Polacek, Matt

    2009-03-01

    Hatchery supplementation of kokanee Oncorhynchus nerka and rainbow trout O. mykiss has been the primary mitigation provided by Bonneville Power Administration for loss of anadromous fish to the waters above Grand Coulee Dam (GCD). The hatchery program for rainbow trout has consistently met management goals and provided a substantial contribution to the fishery; however, spawner returns and creel survey results for kokanee have been below management goals. Our objective was to identify factors that limit limnetic fish production in Lake Roosevelt by evaluating abiotic conditions, food limitations, piscivory, and entrainment. Dissolved oxygen concentration was adequate throughout most of the year; however, levels dropped to near 6 mg/L in late July. For kokanee, warm water temperatures during mid-late summer limited their nocturnal distribution to 80-100 m in the lower section of the reservoir. Kokanee spawner length was consistently several centimeters longer than in other Pacific Northwest systems, and the relative weights of rainbow trout and large kokanee were comparable to national averages. Large bodied daphnia (> 1.7 mm) were present in the zooplankton community during all seasons indicating that top down effects were not limiting secondary productivity. Walleye Stizostedion vitreum were the primary piscivore of salmonids in 1998 and 1999. Burbot Lota lota smallmouth bass Micropterus dolomieui, and northern pikeminnow Ptychocheilus oregonensis preyed on salmonids to a lesser degree. Age 3 and 4 walleye were responsible for the majority (65%) of the total walleye consumption of salmonids. Bioenergetics modeling indicated that reservoir wide consumption by walleye could account for a 31-39% loss of stocked kokanee but only 6-12% of rainbow trout. Size at release was the primary reason for differential mortality rates due to predation. Entrainment ranged from 2% to 16% of the monthly abundance estimates of limnetic fish, and could account for 30% of total

  13. 78 FR 25256 - New England Fishery Management Council; Public Meeting

    Science.gov (United States)

    2013-04-30

    ... various evaluation metrics. The Committees will provide guidance about packaging options into alternatives... L. Thompson, Acting Deputy Director, Office of Sustainable Fisheries, National Marine...

  14. CROATIAN FISHERY IN 2003 YEAR

    Directory of Open Access Journals (Sweden)

    Irena Jahutka

    2004-12-01

    Full Text Available This work deals with the analysis and sublimation of all the relevant informations regarding fisheries in Republic of Croatia. This means that there were processed data about freshwater fisheries (farming of freshwater fish and other aquatic organisms, commercial and sports fisheries, marine fisheries (mariculture, commercial fisheries, small–scale fisheries and processing of fish products, import and export of fish and fish products as well as the financial subventions regarding fisheries. The farming of freshwater fish in 2003 is marked by the decrease of production comparing to the past 5 years. Carp is furthermore the most dominant fish species in freshwater fish farming, but it’s percentage is decreasing, and the percentage of the trout is increasing over the years. In addition to the decrease of production, the areas of production are decreasing as well, and now they are the smallest in the past decade — 6,281.97 ha. In 2003 the amount of used food is also decreased, but the amount of used fertilizers and lime is increased, that means it is the biggest in the past decade. This is caused by the bad climate conditions during the summer. Marine fisheries farming (mariculture in 2003 is in a slightly better position then the freshwater fish farming. The production of white fish species, which was reached before few years, is not changing — 2,510 tons, also the farming of oysters is stagnating, but in the past few years the farming of mussels and tuna fish is increasing. The total marine fish catch is 29,102 tons and it is performed over 34,000 km2, comparing to the 2002 it is increased by almost 49.24%. Additional to the increase of the total catch the number of commercial fishermen and fishing vessels is also increased. The number of fisherman which fish for their own consumption without the right to sell fish, that means the small–scale fishermen in 2003 is 13,500. The production of fish and fish products in 2003 is 19,000 tons

  15. FUZZY COMPREHENSIVE EVALUATION MODEL OF ECOLOGICAL DEMONSTRATION AREA

    Institute of Scientific and Technical Information of China (English)

    YU Ya-juan; GUO Huai-cheng; LIU Yong; WANG Shu-tong; WANG Jin-feng

    2005-01-01

    Ecological demonstration area (EDA) is an authorized nomination, which should be assessed from several aspects, including ecological, social, environmental, economic ones and so on. It is difficult to advance an exact developing level index of EDA due to its indicator system's complexity and disequilibrium. In this paper, a framework of indicators was set to evaluate, monitor and examine the comprehensive level of ecological demonstration area (EDA). Fuzzy logic method was used to develop the fuzzy comprehensive evaluation model (FCEM), which could quantitatively reveal the developing degree of EDA. Huiji District of Zhengzhou, Henan Province, one of the 9th group of national EDAs, was taken as a study case. The framework of FCEM for the integrated system included six subsystems, which were social, economic, ecological, rural, urban and accessorial description ones. The research would be valuable in the comprehensive quantitative evaluation of EDA and would work as a guide in the construction practices of Huiji ecological demonstration area.

  16. Putative fishery-induced changes in biomass and population size structures of demersal deep-sea fishes in ICES Sub-area VII, North East Atlantic Ocean

    Directory of Open Access Journals (Sweden)

    J. A. Godbold

    2012-08-01

    Full Text Available A time series from 1977–1989 and 2000–2002 of scientific trawl surveys in the Porcupine Seabight and adjacent Abyssal Plain of the NE Atlantic was analysed to assess changes in demersal fish biomass and length frequency. These two periods coincide with the on-set of the commercial deep-water fishery in the late 1970s and the on-set of the regulation of the fishery in the early 2000's and allowed us to investigate changes in the relationship between total demersal fish biomass and depth between the pre- and post commercial fishing periods, changes in the biomass (kg km2 depth distribution and length frequency distribution of the most dominant fish species. Our results show a decline in total demersal fish biomass of 36% within the depth range of the commercial fishery (< 1500 m. Whilst there were significant declines in target (e.g. Coryphaenoides rupestris decreased by 57% and non-target (e.g. Coryphaenoides guentheri and Antimora rostrata species, not all species declined significantly. Changes in the overall length-frequency distribution were detected for 2 species (Coryphaenoides armatus, Synaphobranchus kaupii, but only at depths greater than 1800 m (outside the maximum depth for commercial trawling. This suggests that whilst there is evidence for likely fisheries impacts on the biomass distribution of the demersal fish population as a whole, species-specific impacts are highly variable. It is clear that changes in population structure can extend beyond the depth at which fishing takes place, highlighting the importance for also considering the indirect effects on deep-sea fish populations.

  17. Putative fishery-induced changes in biomass and population size structures of demersal deep-sea fishes in ICES Sub-area VII, Northeast Atlantic Ocean

    Directory of Open Access Journals (Sweden)

    J. A. Godbold

    2013-01-01

    Full Text Available A time series from 1977–1989 and 2000–2002 of scientific trawl surveys in the Porcupine Seabight and adjacent abyssal plain of the NE Atlantic was analysed to assess changes in demersal fish biomass and length frequency. These two periods coincide with the onset of the commercial deep-water fishery in the late 1970s and the onset of the regulation of the fishery in the early 2000's, which allowed us to investigate changes in the relationship between total demersal fish biomass and depth between the pre- and post commercial fishing periods, as well as changes in the biomass (kg km−2 depth distribution and length frequency distribution of the most dominant fish species. Our results show a decline in total demersal fish biomass of 36% within the depth range of the commercial fishery (< 1500 m. Whilst there were significant declines in target (e.g. Coryphaenoides rupestris decreased by 57% and non-target (e.g. C. guentheri and Antimora rostrata species, not all species declined significantly. Changes in the overall length-frequency distribution were detected for 5 out of the 8 dominant species occupying depth ranges both within and outside the maximum depth for commercial trawling. This suggests that whilst there is evidence for likely fishery impacts on the biomass distribution of the demersal fish population as a whole, species-specific impacts are highly variable. It is clear that changes in population structure can extend beyond the depth at which fishing takes place, highlighting the importance for also considering the indirect effects on deep-sea fish populations.

  18. A Captive Ocean: Evaluation of Aquaculture, Fisheries Sustainabilty and Aquaria as Arks in the Setting of a Field-based Class

    Science.gov (United States)

    Macko, Stephen; O'Connell, Matthew; Sullivan, Heather

    2015-04-01

    Sustainability awareness is increasingly a subject in educational settings. Marine science classes are perfect settings of establishing sustainability awareness owing to declining populations of organisms and perceived collapse in fisheries worldwide. Students in oceanography classes often request more direct exposure to actual ocean situations or field trips. During regular session (13 week) or shorter term (4 week) summer classes such long trips are logistically difficult owing to large numbers of students involved or timing. This new approach to such a course supplement addresses the requests by utilizing local resources and short field trips for a limited number of students (20) to locations in which Ocean experiences are available, and are often supported through education and outreach components. The vision of the class was a mixture of classroom time, readings, along with paper and laboratories. In addition, short day-long trips to locations where the ocean was 'captured' were also used to supplement the experience as well as speakers involved with aquaculture. Central Virginia is a fortunate location for such a class, with close access for travel to the Chesapeake Bay and numerous field stations, museums with ocean-based exhibits (the Smithsonian and National Zoo) that address both extant and extinct Earth history, as well as national/state aquaria in Baltimore and Virginia Beach. Furthermore, visits to local seafood markets at local grocery stores, or larger city markets in Washington, Baltimore and Virginia Beach, enhance the exposure to productivity in the ocean, and viability of the fisheries sustainability. The course could then address not only the particulars of the marine science, but also aspects of sustainability with discussions on ethics, including keeping animals in captivity or overfishing of particular species and the special difficulties that arise from captive or culturing ocean populations. In addition, the class was encouraged to post web

  19. Ecosystem approach to inland fisheries: Research needs and implementation strategies

    Science.gov (United States)

    Beard, T.D., Jr.; Arlinghaus, R.; Cooke, S.J.; McIntyre, P.B.; De Silva, S.; Bartley, D.; Cowx, I.G.

    2011-01-01

    Inland fisheries are a vital component in the livelihoods and food security of people throughout the world, as well as contributing huge recreational and economic benefits. These valuable assets are jeopardized by lack of research-based understanding of the impacts of fisheries on inland ecosystems, and similarly the impact of human activities associated with inland waters on fisheries and aquatic biodiversity. To explore this topic, an international workshop was organized in order to examine strategies to incorporate fisheries into ecosystem approaches for management of inland waters. To achieve this goal, a new research agenda is needed that focuses on: quantifying the ecosystem services provided by fresh waters; quantifying the economic, social and nutritional benefits of inland fisheries; improving assessments designed to evaluate fisheries exploitation potential; and examining feedbacks between fisheries, ecosystem productivity and aquatic biodiversity. Accomplishing these objectives will require merging natural and social science approaches to address coupled social-ecological system dynamics. ?? 2010 The Royal Society.

  20. Ecosystem approach to inland fisheries: research needs and implementation strategies.

    Science.gov (United States)

    Beard, T Douglas; Arlinghaus, Robert; Cooke, Steven J; McIntyre, Peter B; De Silva, Sena; Bartley, Devin; Cowx, Ian G

    2011-08-23

    Inland fisheries are a vital component in the livelihoods and food security of people throughout the world, as well as contributing huge recreational and economic benefits. These valuable assets are jeopardized by lack of research-based understanding of the impacts of fisheries on inland ecosystems, and similarly the impact of human activities associated with inland waters on fisheries and aquatic biodiversity. To explore this topic, an international workshop was organized in order to examine strategies to incorporate fisheries into ecosystem approaches for management of inland waters. To achieve this goal, a new research agenda is needed that focuses on: quantifying the ecosystem services provided by fresh waters; quantifying the economic, social and nutritional benefits of inland fisheries; improving assessments designed to evaluate fisheries exploitation potential; and examining feedbacks between fisheries, ecosystem productivity and aquatic biodiversity. Accomplishing these objectives will require merging natural and social science approaches to address coupled social-ecological system dynamics. PMID:21325307

  1. Discard Atlas of North Sea fisheries

    OpenAIRE

    Quirijns, F.J.; Pastoors, M.A.; Uhlmann, S.S.; Verkempynck, R.

    2014-01-01

    The results presented in this discard atlas are based on landings and discards data from the official database of the Scientific, Technical and Economic Committee for Fisheries (STECF) of the European Union. Quantities of landings are derived from the national fisheries statistics which are recorded according to the control regulation (Council Regulation 1224/2009). These include logbook or sales slip records of the volume of landing by species and size grade per management area. Under the Eu...

  2. Rice field fisheries: a resource for Cambodia

    OpenAIRE

    Guttman, H.

    1999-01-01

    Small-scale fisheries in and around rice fields in the lowland areas of Cambodia are greatly underestimated and undervalued. Their contribution to the protein requirements of the poor rural households is significant. In Svay Rieng province, they could provide 65-75% of the animal protein requirements of these households. The value could well be around 40% of the value of rice production. It is, therefore, important that these natural stocks and the fisheries are managed well and that developm...

  3. Evaluation of the flathead catfish population and fishery on Lake Carl Blackwell, Oklahoma, with emphasis on the effects of noodling

    Science.gov (United States)

    Winkelman, Dana L.

    2011-01-01

    I conducted a 3-year study at Lake Carl Blackwell, Oklahoma to estimate effects of various fishing gears on the flathead catfish Pylodictis olivaris population. Managers were particularly interested in the effect of handfishing or noodling on this population. I used a phone survey to assess angler effort and electrofishing and gill nets to calculate standard population metrics to assess composition of the current population. Survey data indicated that fishing effort and harvest were highest for trotlines and juglines and lowest for noodling. Size distribution of fish harvested by noodlers was not different from sizes that were available in the fishery and was similar to those fish harvested with other gears. Flathead catfish Sampled in Lake Carl Blackwell ranged in size from 38 to 1,220 mm total length, and 77% of the population was less than 508 mm (minimum legal size). Estimated total annual mortality was about 11%. Proportional size distribution (PSD) of flathead catfish for Lake Carl Blackwell indicates that about 70% of legal-sized flathead catfish were over the preferred size of 710 mm. Overall, the Lake Carl Blackwell flathead catfish population appeared healthy. There were a wide range of sizes and ages in the population, and PSD indicated a well-balanced population with many preferred and memorable-sized fish. Due to its rarity, noodling is probably not adversely influencing the population. Additionally, noodling at Lake Carl Blackwell does not appear to be as size-selective as previously thought. 

  4. Oyster Fisheries App

    Science.gov (United States)

    Perez Guerrero, Geraldo A.; Armstrong, Duane; Underwood, Lauren

    2015-01-01

    This project is creating a cloud-enabled, HTML 5 web application to help oyster fishermen and state agencies apply Earth science to improve the management of this important natural and economic resource. The Oyster Fisheries app gathers and analyzes environmental and water quality information, and alerts fishermen and resources managers about problems in oyster fishing waters. An intuitive interface based on Google Maps displays the geospatial information and provides familiar interactive controls to the users. Alerts can be tailored to notify users when conditions in specific leases or public fishing areas require attention. The app is hosted on the Amazon Web Services cloud. It is being developed and tested using some of the latest web development tools such as web components and Polymer.

  5. Research on Fish Consumer Profile Evaluation in Romanian Plain Area

    Directory of Open Access Journals (Sweden)

    Silvius STANCIU

    2011-11-01

    Full Text Available Research aimed at shaping a fish consumer profile in the Romanian Plain area. 150 people were interviewed. Preferences evaluation was conducted by means of a questionnaire with 27 questions. Favorite fish species, purchasing place and manner, favorite preparation choices, consumption frequency and place have been identified.

  6. Westside Area Career Occupations Project. Evaluation Report 1975-76.

    Science.gov (United States)

    Glur, John

    Evaluation of the Westside Area Career Occupations Project (WACOP) focused on (1) examining what aspects of the Arizona career education effort had the most significant impact on students, and (2) measuring specific outcomes related to the students' knowledge about the world of work, using the Arizona Careers Test. System implementation and…

  7. Area recommendation report for the crystalline repository project: An evaluation

    International Nuclear Information System (INIS)

    An evaluation is given of DOE's recommendation of the Elk River complex in North Carolina for siting the second repository. Twelve recommendations are made including a strong suggestion that the Cherokee Tribe appeal both through political and legal avenues for inclusion as an affected area primarily due to projected impacts upon economy and public health as a consequence of the potential for reduced tourism

  8. Hawaii's Pelagic Fisheries

    OpenAIRE

    Boggs , Christofer H.; Ito , Russell Y.

    1993-01-01

    Hawaii's diverse pelagic fisheries supply the bulk of the State's total catch. The largest Hawaii fishery is the recently expanded longline fishery, which now lands about 4,400 metric tons (t) of broadbill swordfish, Xiphias gladius; 1,500 t of bigeye tuna, Thunnus obesus, and 3,000 t of other pelagic species annually. The increased catch of these other species has raised concerns regarding the continued availability of yellowfin tuna, T. albacares; blue marlin, Makaira mazara; and mahimahi, ...

  9. Corrective measures evaluation report for technical area-v groundwater.

    Energy Technology Data Exchange (ETDEWEB)

    Witt, Johnathan L (North Wind, Inc., Idaho Falls, ID); Orr, Brennon R. (North Wind, Inc., Idaho Falls, ID); Dettmers, Dana L. (North Wind, Inc., Idaho Falls, ID); Hall, Kevin A. (North Wind, Inc., Idaho Falls, ID); Howard, Hope (North Wind, Inc., Idaho Falls, ID)

    2005-07-01

    This Corrective Measures Evaluation Report was prepared as directed by the Compliance Order on Consent issued by the New Mexico Environment Department to document the process of selecting the preferred remedial alternative for contaminated groundwater at Technical Area V. Supporting information includes background information about the site conditions and potential receptors and an overview of work performed during the Corrective Measures Evaluation. Evaluation of remedial alternatives included identification and description of four remedial alternatives, an overview of the evaluation criteria and approach, qualitative and quantitative evaluation of remedial alternatives, and selection of the preferred remedial alternative. As a result of the Corrective Measures Evaluation, it was determined that monitored natural attenuation of all contaminants of concern (trichloroethene, tetrachloroethene, and nitrate) was the preferred remedial alternative for implementation as the corrective measure to remediate contaminated groundwater at Technical Area V of Sandia National Laboratories/New Mexico. Finally, design criteria to meet cleanup goals and objectives and the corrective measures implementation schedule for the preferred remedial alternative are presented.

  10. Natural, social, economical and political influences on fisheries: a review of the transitional area of the Polish waters of the Vistula Lagoon.

    Science.gov (United States)

    Psuty, Iwona

    2010-01-01

    A 60 year (1948-2007) dataset gathered by Polish researchers working on the Vistula Lagoon fish assemblages and fisheries has shown this stressed transitional environment to be always been dominated by a few highly abundant fish species. During this period, the surrounding countries Poland and Russia (Kaliningrad) were transformed from centrally-planned economies with fixed prices to free market systems. The organization of the fishery evolved from one in which the majority of the fishing effort was expended by cooperatives, to one which was characterized by individual economic activity. The fishing gear deployed also evolved from cotton to monofilament, as well as from large sailing vessels with small-sized pair trawls to fyke nets targeting eel (Anguilla anguilla) and pound nets targeting herring (Clupea harengus). Small-sized gillnets targeting perch (Perca fluviatilis) grew in popularity as eel and pikeperch (Sander lucioperca) catches decreased. Cooperation between Polish and Russian fishery managers began in 1952 with the aim of implementing joint agreements to establish protection guidelines. The substantial nutrient loads into the lagoon in 1970 and 1980 put very large pressure on the environment, and contributed to the loss of macrophytes as well as the development of non-commercial fish populations. One of the consequences of these changes was the rapid growth of a black cormorant (Phalacrocorax carbo) breeding colony. These multi-faceted changes are considered to be the factors that have influenced the exploitation of fish assemblages in the Polish part of the Vistula Lagoon. The most evident change in the fish assemblage structure during the study period was the permanent decrease in the basin's top predators--pike (Esox lucius) and pikeperch. Eel stocking was initiated in 1970 following a crucial decline in yield from natural recruitment, and stocking was successful in increasing eel abundance. PMID:20359718

  11. Evaluation of water quality conditions near proposed fish production sites associated with the Yakima Fisheries Project. Final report

    International Nuclear Information System (INIS)

    In 1991, the Pacific Northwest Laboratory (PNL) began studying water quality at several sites in the Yakima River Basin for the Bonneville Power Administration. These sites were being proposed as locations for fish culture facilities as part of the Yakima Fisheries Project (YFP). Surface water quality parameters near the proposed fish culture facilities are currently suitable for fish production. Water quality conditions in the mainstream Yakima River and its tributaries are generally excellent in the upper part of the watershed (i.e., near Cle Elum), but they are only fair to poor for the river downstream of Union Gap (river mile 107). Water quality of the Naches River near Oak Flats is also suitable for fish production. Groundwater supplies near the proposed fish production facilities typically have elevated concentrations of metals and dissolved gases. These conditions can be mitigated using best engineering practices such as precipitation and degasification. Additionally, mixing with surface water may improve these conditions. Depending on the location and depth of the well, groundwater temperatures may be warmer than optimum for acclimating and holding juvenile and adult fish. Water quality parameters measured in the Yakima River and tributaries sometimes exceed the range of values described as acceptable for culture of salmonids and for the protection of other aquatic life. However, constituent concentrations are within ranges that exist in many northwest fish hatcheries. Additionally, site-specific tests conducted by PNL (i.e., live box exposures and egg incubation studies) indicate that fish can be successfully reared in surface and well water near the proposed facility sites. Thus, there appear to be no constraints to artificial production for the YFP

  12. Landscape Influences on Fisher Success: Adaptation Strategies in Closed and Open Access Fisheries in Southern Chile

    Directory of Open Access Journals (Sweden)

    Tracy Van Holt

    2012-03-01

    Full Text Available Determinants of fisher success in southern Chile's loco (Concholepas concholepas fishery are examined by comparing fisher success in exclusive access territories that vary in relationship to tree-plantation development, which can affect shellfish quality. The relative importance of fishers' experience and capture technology (traditional measures of fisher success are evaluated against environmental and geospatial characteristics. While knowledge and technology explained variation in catches, this did not translate into higher prices or profit. Fishers succeeded (gained higher prices for locos and had higher monthly incomes from their management areas when they harvested shellfish from closed (exclusive nearshore management areas where the environmental condition produced high quality locos regardless of their fishing experience, technology, and the geospatial features of management areas. Experienced fishers who worked in management areas near tree plantations that fail to produce resources of sufficient quality shifted to offshore fisheries where their experience counted. Offshore fishers working in the congrio (Genypterus chilensis fishery likely exposed themselves to more risk and benefited from their experience and available technology; environmental condition and geospatial factors played little role in their success (price. Closed management areas provided resources to harvest, but may reduce a fisher's ability to adapt to environmental change because success depends on environmental factors outside of a fisher's control. Fishers were not financially rewarded for their experience or their technology in the loco fishery.

  13. 76 FR 77806 - International Affairs; U.S. Fish Quotas in the Northwest Atlantic Fisheries Organization...

    Science.gov (United States)

    2011-12-14

    ... National Oceanic and Atmospheric Administration RIN 0648-XA868 International Affairs; U.S. Fish Quotas in the Northwest Atlantic Fisheries Organization Regulatory Area AGENCY: National Marine Fisheries... Northwest Atlantic Fisheries ] Organization (NAFO) Regulatory Area. This action is necessary to make...

  14. 76 FR 72907 - International Affairs; U.S. Fishing Opportunity in the Northwest Atlantic Fisheries Organization...

    Science.gov (United States)

    2011-11-28

    ... National Oceanic and Atmospheric Administration RIN 0648-XA845 International Affairs; U.S. Fishing Opportunity in the Northwest Atlantic Fisheries Organization Regulatory Area AGENCY: National Marine Fisheries... flounder in Division 3LNO of the Northwest Atlantic Fisheries Organization (NAFO) Regulatory Area...

  15. Corrective measures evaluation work plan Technical Area V groundwater.

    Energy Technology Data Exchange (ETDEWEB)

    Lebow, Patrick S.; Dettmers, Dana L.; Hall, Kevin A.

    2004-04-01

    This document, which is prepared as directed by the Compliance Order on Consent (COOC) issued by the New Mexico Environment Department, identifies and outlines a process to evaluate remedial alternatives to identify a corrective measure for the Sandia National Laboratories New Mexico Technical Area (TA)-V Groundwater. The COOC provides guidance for implementation of a Corrective Measures Evaluation (CME) for the TA-V Groundwater. This Work Plan documents an initial screening of remedial technologies and presents a list of possible remedial alternatives for those technologies that passed the screening. This Work Plan outlines the methods for evaluating these remedial alternatives and describes possible site-specific evaluation activities necessary to estimate remedy effectiveness and cost. These methods will be reported in the CME Report. This Work Plan outlines the CME Report, including key components and a description of the corrective measures process.

  16. 76 FR 41764 - Atlantic Coastal Fisheries Cooperative Management Act Provisions; General Provisions for Domestic...

    Science.gov (United States)

    2011-07-15

    ... National Oceanic and Atmospheric Administration RIN 0648-XA563 Atlantic Coastal Fisheries Cooperative Management Act Provisions; General Provisions for Domestic Fisheries; Application for Exempted Fishing... population in management Area 3. This EFP would excuse 11 commercial fishing vessels from the...

  17. Evaluation of the Contribution of Fall Chinook Salmon Reared at Columbia River Hatcheries to the Pacific Salmon Fisheries, 1989 Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    Vreeland, Robert R.

    1989-10-01

    In 1979 this study was initiated to determine the distribution, contribution, and value of artificially propagated fall chinook salmon from the Columbia River. Coded wire tagging (CWT) of hatchery fall chinook salmon began in 1979 with the 1978 brood and was completed in 1982 with the 1981 brood of fish at rearing facilities on the Columbia River system. From 18 to 20 rearing facilities were involved in the study each brood year. Nearly 14 million tagged fish, about 4% of the production, were released as part of this study over the four years, 1979 through 1982. Sampling for recoveries of these tagged fish occurred from 1980 through 1986 in the sport and commercial marine fisheries from Alaska through California, Columbia River fisheries, and returns to hatcheries and adjacent streams. The National Marine Fisheries Service coordinated this study among three fishery agencies: US Fish and Wildfire Service, Oregon Department of Fish and Wildlife, and Washington Department of Fisheries. The objectives of this study were to determine the distribution, fishery contribution, survival, and value of the production of fall chinook salmon from each rearing facility on the Columbia River system to Pacific coast salmon fisheries. To achieve these objectives fish from each hatchery were given a distinctive CWT. 81 refs., 20 figs., 68 tabs.

  18. Sustainable Fisheries in Southeast Asia

    OpenAIRE

    Melda Kamil Ariadno

    2011-01-01

    Fisheries activity has increased significantly in number. As a result, we might see high investment in fisheries is due to the high demand for fish and fisheries products. Therefore, marine resources as well as other living resources are at risk in being harmed by excessive fisheries activities, for example: the use of trawl. Indonesia, as a Maritime State, need to impose sustainable fisheries because the principle of utilizing sustainable fisheries resources as adopted in the Law on Fish...

  19. A cybernetic future for small-scale fisheries

    OpenAIRE

    2014-01-01

    This article discusses the future of indigenous Sami fisheries in cybernetic fisheries systems characterized by increasing effectivization and industrialisation. It empirically investigates the past and present development of a small-scale fjord fishery in Porsanger, northern Norway, which has been a major part of the material basis for indigenous Sami culture and settlements in the area. The article utilises historical vessel registries and fishers’ vessel career narratives fr...

  20. A model evaluating the number and areas of functional regions

    OpenAIRE

    Drobne, Samo

    2016-01-01

    Functional regions are a generalization of changeable social and economic functional interactions in a territory. These regions are increasingly used when analysing economic, social, environmental, and spatial development and when making development-related decisions. In this doctoral dissertation we propose a procedure to evaluate the areas and the number of hierarchical functional regions. The procedure is based on: (a) using Intramax, a hierarchical method to model functional region system...

  1. Genomic approaches in aquaculture and fisheries

    DEFF Research Database (Denmark)

    Cancela, M. Leonor; Bargelloni, Luca; Boudry, Pierre;

    2010-01-01

    . Improving state-of-the-art genomics research in various aquaculture systems, as well as its industrial applications, remains one of the major challenges in this area and should be the focus of well developed strategies to be implemented in the next generation of projects. This chapter will first provide an......Despite the enormous input into the worldwide development of fish and shellfish farming in the recent decades, in part as an attempt to minimize the impact of fishing on already overexploited natural populations, the application of genomics to aquaculture and fisheries remains poorly developed...... overview of the genomic tools and resources available, then discuss the application of genomic approaches to the improvement of fish and shellfish farming (e.g. breeding, reproduction, growth, nutrition and product quality), including the evaluation of stock diversity and the use of selection procedures...

  2. A special report on fishery resources of the Kenai Peninsula, Territory of Alaska

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This report evaluates existing fisheries of the Kenai Peninsula and is broken down in two section, values associated with commercial fishery resources and value of...

  3. Scientific, Technical and Economic Committee for Fisheries (STECF) - Evaluation/scoping of Management plans - Data analysis for support of the impact assessment for the management plan of Bay of Biscay anchovy (COM(2009)399 final). (STECF-14-05)

    OpenAIRE

    2014-01-01

    The Expert Working Group meeting of the Scientific, Technical and Economic Committee for Fisheries EWG-14-03 on Evaluation/scoping of Management plans. Data analysis for support of the impact assessment for the management plan of Bay of Biscay anchovy (COM(2009)399 final) was held from 10-14 March 2014 in Varese, Italy. The report was reviewed and endorsed by the STECF during its plenary meeting held from 24 to 28 March 2014 in Brussels (Belgium).

  4. Damage Degree Evaluation of Earthquake Area Using UAV Aerial Image

    Directory of Open Access Journals (Sweden)

    Jinhong Chen

    2016-01-01

    Full Text Available An Unmanned Aerial Vehicle (UAV system and its aerial image analysis method are developed to evaluate the damage degree of earthquake area. Both the single-rotor and the six-rotor UAVs are used to capture the visible light image of ground targets. Five types of typical ground targets are considered for the damage degree evaluation: the building, the road, the mountain, the riverway, and the vegetation. When implementing the image analysis, first the Image Quality Evaluation Metrics (IQEMs, that is, the image contrast, the image blur, and the image noise, are used to assess the imaging definition. Second, once the image quality is qualified, the Gray Level Cooccurrence Matrix (GLCM texture feature, the Tamura texture feature, and the Gabor wavelet texture feature are computed. Third, the Support Vector Machine (SVM classifier is employed to evaluate the damage degree. Finally, a new damage degree evaluation (DDE index is defined to assess the damage intensity of earthquake. Many experiment results have verified the correctness of proposed system and method.

  5. Evaluation of municipal solid waste management in egyptian rural areas.

    Science.gov (United States)

    El-Messery, Mamdouh A; Ismail, Gaber A; Arafa, Anwaar K

    2009-01-01

    A two years study was conducted to evaluate the solid waste management system in 143 villages representing the Egyptian rural areas. The study covers the legal responsibilities, service availability, environmental impacts, service providers, financial resources, private sector participation and the quality of collection services. According to UN reports more than 55% of Egyptian population lives in rural areas. A drastic change in the consumption pattern altered the quantity and quality of the generated solid wastes from these areas. Poor solid waste management systems are stigmata in most of the Egyptian rural areas. This causes several environmental and health problems. It has been found that solid waste collection services cover only 27% of the surveyed villages, while, the statistics show that 75% of the surveyed villages are formally covered. The service providers are local villager units, private contractors and civil community associations with a percentage share 71%, 24% and 5% respectively. The operated services among these sectors were 25%, 71% and 100% respectively. The share of private sector in solid waste management in rural areas is still very limited as a result of the poverty of these communities and the lack of recyclable materials in their solid waste. It has been found that direct throwing of solid waste on the banks of drains and canals as well as open dumping and uncontrolled burning of solid waste are the common practice in most of the Egyptian rural areas. The available land for landfill is not enough, pitiable designed, defectively constructed and unreliably operated. Although solid waste generated in rural areas has high organic contents, no composting plant was installed. Shortage in financial resources allocated for valorization of solid waste management in the Egyptian rural areas and lower collection fees are the main points of weakness which resulted in poor solid waste management systems. On the other hand, the farmer's participation

  6. Hazard and Risk Analysis in Culture Fisheries

    Directory of Open Access Journals (Sweden)

    E.N. Ezekiel

    2011-10-01

    Full Text Available Culture fisheries is multi-faceted and also presents a diverse array of environment ranging from freshwater to marine and from simple stagnant ponds to high tech computerized closed indoor water recirculation systems. The industry is therefore, fraught with potential risks and hazards. Risk analysis is now widely applied in many fields that touch our daily lives. Risk analysis is a process that provides a flexible framework within which the risks of adverse consequences resulting from a course of action can be evaluated in a systematic, science-based manner. Governments and the private sector must often make decisions based on incomplete knowledge and a high degree of uncertainty. Such decisions may have far-reaching social, environmental and economic consequences. An integrated approach to risk analysis will assist the culture fisheries sector in reducing risks to successful operations from both internal and external hazards and can similarly help to protect the environment, society and other resource users from adverse and often unpredicted impacts. The principles for controlling hazards in Culture fisheries will include the identification of hazard, control of the hazard and monitoring of the effectiveness of the controls. This paper reviews the risk concept, general Principles, applications of risk analysis, management of hazards and risks in culture fisheries, application of risk analysis to culture fisheries and proffered management strategy to reduce or minimize hazards and risk in culture fisheries.

  7. Economic response to harvest and effort control in fishery

    DEFF Research Database (Denmark)

    Hoff, Ayoe; Frost, Hans

    This report constitutes a contribution to the EFIMAS project, Operational Evaluation Tools for Fisheries Management Options, under EU's sixth framework programme, priority 8. EFIMAS is carried out as a multidisciplinary research project with the aim to improve the scientific foundation for fisher...... the complexities of biological and economic interaction in a multispecies, multifleet framework and outlines consistent mathematical models....... fisheries management. The report outlines bio-economic models, which are designed to shed light on the efficiency of different management tools in terms of quota or effort restrictions given the objectives of the Common Fisheries Policy about sustainable and economic viable fisheries. The report addresses...

  8. Impact of groundwater use as heat energy on coastal ecosystem and fisheries

    Science.gov (United States)

    Taniguchi, Makoto

    2016-04-01

    Demands for groundwater as a heat energy source to melt snow is increasing in many coastal snowy areas in Japan because of the lack of laborers for snow removal and the abundance of groundwater resources. The temperature of groundwater is relatively higher in winter than that of the air and river water, therefore it is a useful heat source to melt snow. However, groundwater is also beneficial for the coastal ecosystem and fishery production because of the nutrient discharge by submarine groundwater discharge (SGD), which is one of the water and dissolved material pathways from land to the ocean. Therefore, groundwater is involved in the tradeoff and management conflict existing between energy and food (fisheries). In this study, the impact of groundwater, used as a heat energy source for the melting of snow accumulated on roads, on the coastal ecosystem and fisheries has been analyzed in the snowy areas of Obama City, Fukui Prefecture, Japan. Positive correlation has been found between primary production rates in Obama Bay and radon concentrations which show the magnitude of the submarine groundwater discharge. Therefore, the increase in groundwater pumping on land reduces fishery production in the ocean. Results of 3D numerical simulations of the basin scale groundwater model show a reduction of SGD by 5 percent due to an increase in groundwater pumping by 1.5 times. This reduction of SGD caused a 3.7 ton decrease in fishery production under the aforementioned assumptions. The groundwater-energy-fishery nexus was found in Obama Bay, Japan and the tradeoff between water and food was evaluated.

  9. 78 FR 37208 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of Puerto Rico...

    Science.gov (United States)

    2013-06-20

    ... fishing activities is to obtain additional life history information for the Caribbean Fishery Management....435(a) (Seasonal and area closures), Sec. 622.436 (Size limits), and Sec. 622.437 (Bag limits). This... accurately describe the status of the Caribbean reef fish fishery. Additional life history information...

  10. Evaluation of the forest ecosystem health in Beijing area

    Institute of Scientific and Technical Information of China (English)

    Ma Li; Han Hai-rong; Ma Qin-yan; Liu Hong-wen; Xia Wei-wei; Cheng Xiao-qin

    2007-01-01

    The evaluation of ecosystem health has become one of the main research topics of ecosystem science, thus more and more assessment methods and frameworks have been put forward in recent years. However, the attention people pay to ecosystem health is actually more about what the social functions the ecosystem affords, which depend on the integrity and maintenance of the ecosystem structure and function, and the intensity of disturbance from outside. Accordingly, this research commenced from three main aspects,selected the evaluation indices, and then established the Evaluation Index System of Beijing Forest Ecosystem Health (EIS-BFEH).In the EIS-BFEH, each of the three foundations contained an easily-operated and standard sub-index system, which compounded the specific natural and social conditions of Beijing and was concrete enough to measure and evaluate. Then with the method of the Analytical Hierarchy Process (AHP), the comprehensive index (CI) could be obtained, which represented the health of the forest ecosystem. As a case study, the forest ecosystems in the Badaling area were sampled, evaluated, compared and ranked by use of the EIS-BFEH. The result show that the health of natural forests is much better than that of plantations in the Badaling forest center: the average comprehensive index of the former is 7.9, while the latter is only 6.6. From the results, it could also be found that there are nine units in the healthy state, two units in the subhealthy state, and only one unit of Robinia pseudoacacia in the morbid state.

  11. 50 CFR 660.390 - Groundfish conservation areas.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Groundfish conservation areas. 660.390 Section 660.390 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND... Groundfish Fisheries § 660.390 Groundfish conservation areas. In § 660.302, a groundfish conservation area...

  12. 50 CFR 660.396 - EFH Conservation Areas.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false EFH Conservation Areas. 660.396 Section 660.396 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC... Fisheries § 660.396 EFH Conservation Areas. EFH Conservation Areas are designated to minimize to the...

  13. CCDP evaluation of the fire areas of KSNP using CFAST

    International Nuclear Information System (INIS)

    During the past decade, the nuclear power industry has been moving away from prescriptive rules and practices toward risk-informed and performance-based engineering analysis to support the decision making for plant fire protection programs. For example, the National Fire Protection Association (NFPA) prepared NFPA 805, Performance-Based Standard for Fire Protection for Light Water Reactor Electric Generating Plants 2001 Edition. One crucial element in supporting the risk-informed fire protection is availability of simple and reliable methods and tools for evaluating the likelihood and consequences of fire scenarios. These tools directly benefit risk-informed and performance-based fire protection and application of risk information to resolve fire protection issues. Now the deterministic analysis results for the cable integrity is not given in case of performing the fire PSA. So it is necessary to apply the results for the fire modeling to the fire PSA model to develop the more realistic model. This document is intended to analyze the peak temperature of the upper gas layer using the fire modeling code, CFAST , to evaluate the integrity of the cable located on the dominant pump rooms, and to assess the CCDP(Conditional Core Damage Probability) using the results of the cable integrity. Accordingly, the fire safety assessment for the dominant fire areas using the fire modeling code will be capable of evaluating the consequences of the fire scenario, of reducing the the uncertainty, and to develop a more realistic model

  14. Materials balance area Custodian Performance Evaluation Program at PNL

    International Nuclear Information System (INIS)

    The material balance area (MBA) custodian has primary responsibility for control and accountability of nuclear material within an MBA. In this role, the custodian operates as an extension of the facility material control and accountability (MC ampersand A) organization. To effectively meet administrative requirements and protection needs, the custodian must be fully trained in all aspects of MC ampersand A related to the MBA, and custodian performance must be periodically evaluated. DOE Policy requires that each facility provide for a program which assures that each facility provide for a program which assures that personnel performing MC ampersand A functions are (1) trained and/or qualified to perform their duties and responsibilities and (2) knowledgeable of requirements and procedures related to their functions. The MBA Custodian Performance Evaluation Program at PNL uses a variety of assessment techniques to meet this goal, including internal and independent MBA audits, periodic custodian testing, conduct of limited scope performance tests, daily monitoring of MC ampersand A documentation, and reviewing custodian performance during physical inventories. The data collected from these sources is analyzed and incorporated into an annual custodian performance evaluation document, given to each custodian and line management. Development of this program has resulted in significantly improved custodian performance and a marked decrease in finding and observations identified during MBA audits

  15. International Fisheries Agreements

    DEFF Research Database (Denmark)

    Pintassilgo, Pedro; Kronbak, Lone Grønbæk; Lindroos, Marko

    2015-01-01

    This paper surveys the application of game theory to the economic analysis of international fisheries agreements. The relevance of this study comes not only from the existence of a vast literature on the topic but especially from the specific features of these agreements. The emphasis of the survey...... is on coalition games, an approach that has become prominent in the fisheries economics literature over the last decade. It is shown that coalition games were first applied to international fisheries agreements in the late 1990s addressing cooperative issues under the framework of characteristic...... formation and stability of international fisheries agreements. A key message that emerges from this literature strand is that self-enforcing cooperative management of internationally shared fish stocks is generally difficult to achieve. Hence, the international legal framework and regulations play a...

  16. Physical properties and fisheries

    Digital Repository Service at National Institute of Oceanography (India)

    Antony, M.K.

    currents become important in the fishery as the distribution, concentration, depletion, etc., of the fish eggs and larvae are mostly dependent on them. A knowledge of the breeding season and place along with the seasonal winds enables to predict...

  17. Fishery Biology Database (AGDBS)

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — Basic biological data are the foundation on which all assessments of fisheries resources are built. These include parameters such as the size and age composition of...

  18. Fisheries Reclamation Events

    Data.gov (United States)

    Minnesota Department of Natural Resources — This layer shows waterbodies that have been treated for fish removal(i.e., reclaimed)by DNR Fisheries. Some waterbodies have had multiple treatments. Attributes...

  19. Effects of sex change on the implications of marine reserves for fisheries.

    Science.gov (United States)

    Chan, Neil C S; Connolly, Sean R; Mapstone, Bruce D

    2012-04-01

    Marine reserves have become widely used in biodiversity conservation and are increasingly proposed as fisheries management tools. Previous modeling studies have found that reserves may increase or decrease yields, depending on local environmental conditions and on the specific life-history traits of the fishery species. Sex-changing (female-to-male) fish are targets of some of the most important commercial and recreational fisheries in the world. The potential for disproportionate removal of the larger, older sex of such species requires new theory to facilitate our understanding of how reserves will affect the yields of surrounding fisheries, relative to fishes with separate sexes. We investigated this question by modeling the effects of marine reserves on a non-sex-changing and a sex-changing population. We used demographic parameter estimates for the common coral trout as a baseline, and we conducted extensive sensitivity analyses to determine how sustainable yields of sex-changing species are likely to be affected by reserves across a broad range of life-history parameters. Our findings indicate that fisheries for sex-changing species are unlikely to receive the same yield-enhancing benefit that non-sex-changing fisheries enjoy from marine reserves, and that often reserves tend to reduce sustainable yields for a given overall population size. Specifically, the increased egg production and high fertilization success within reserves is more than offset by the reduced egg production and fertilization success in the fished areas, relative to a system in which fishing mortality is distributed more evenly over the entire system. A key reason for this appears to be that fertilization success is reduced, on average, when males are unevenly distributed among subpopulations, as is the case when reserves are present. These findings suggests that, for sex-changing populations, reserves are more suited to rebuilding overfished populations and sustaining fishery viability

  20. Lake Roosevelt Fisheries Evaluation Program : Meadow Creek vs. Lake Whatcom Stock Kokanee Salmon Investigations in Lake Roosevelt Annual Report 2000-2001.

    Energy Technology Data Exchange (ETDEWEB)

    McLellan, Holly J.; Scholz, Allan T.

    2001-07-01

    Lake Roosevelt has been stocked with Whatcom stock kokanee since 1989 to mitigate for anadromous salmon losses caused by the construction of Grand Coulee Dam. The primary objective of the hatchery plantings was to create a self-sustaining recreational fishery. Due to low return numbers, it was hypothesized a native stock of kokanee might perform better than the coastal Whatcom strain. Therefore, kokanee from Meadow Creek, a tributary of Kootenay Lake, British Columbia were selected as an alternative stock. Matched pair releases of Whatcom stock and Meadow Creek kokanee were made from Sherman Creek in late June 2000. Stock performance between Lake Whatcom and Meadow Creek kokanee was evaluated through three performance measures (1) returns to Sherman Creek, the primary egg collection facility, (2) returns to other tributaries, indicating availability for angler harvest, and (3) returns to the creel. A secondary objective was to evaluate the numbers collected at downstream fish passage facilities. Age 2 kokanee were collected during five passes through the reservoir, which included 89 tributaries between August 17th and November 7th, 2000. Sherman Creek was sampled once a week because it was the primary egg collection location. A total of 2,789 age 2 kokanee were collected, in which 2,658 (95%) were collected at Sherman Creek. Chi-square analysis indicated the Meadow Creek kokanee returned to Sherman Creek in significantly higher numbers compared to the Whatcom stock ({chi}{sup 2} = 734.4; P < 0.01). Reservoir wide recoveries indicated similar results ({chi}{sup 2} = 733.1; P < 0.01). No age 2 kokanee were collected during creel surveys. Age 3 kokanee are expected to recruit to the creel in 2001. No age 2 kokanee were collected at the fish passage facilities due to a 170 mm size restriction at the fish passage centers. Age 3 kokanee are expected to be collected at the fish passage centers during 2001. Stock performance cannot be properly evaluated until 2001, when

  1. Material balance area custodian performance evaluation program at PNL

    International Nuclear Information System (INIS)

    This paper reports that the material balance area (MBA) custodian has primary responsibility for control and accountability of nuclear material within an MBA. In this role, the custodian operates as an extension of the facility material control and accountability (MC and A) organization. To effectively meet administrative requirements and protection needs, the custodian must be fully trained in all aspects of MC and A related to the MBA, and custodian performance must be periodically evaluated. U.S. Department of Energy (DOE) Policy requires that each facility provide for a program which ensures that personnel performing MC and A functions are trained and/or qualified to perform their duties and responsibilities and knowledgeable of requirements and procedures related to their functions. the MBA Custodian Performance Evaluation Program at Pacific Northwest Laboratory (PNL) uses a variety of assessment techniques to meet this goal, including internal and independent MBA audits, periodic custodian testing, limited scope performance tests, daily monitoring of MC and A documentation, and reviewing custodian performance during physical inventories

  2. Landscape evaluation of heterogeneous areas using fuzzy sets

    Directory of Open Access Journals (Sweden)

    Ralf-Uwe Syrbe

    1998-02-01

    Full Text Available Landscape evaluation is an interesting field for fuzzy approaches, because it happens on the transition line between natural and social systems. Both are very complex. Therefore, transformation of scientific results to politically significant statements on environmental problems demands intelligent support. Particularly landscape planners need methods to gather natural facts of an area and assess them in consideration of its meaning to society as a whole. Since each land unit is heterogeneous, a special methodology is necessary. Such an evaluation technique was developed within a Geographical Information System (ARC/INFO. The methodology combines several known methods with fuzzy approaches to catch the intrinsic fuzziness of ecological systems as well as the heterogeneity of landscape. Additionally, a way will be discussed to vary the fuzzy inference in order to consider spatial relations of various landscape elements. Fuzzy logic is used to process the data uncertainty, to simulate the vagueness of knowledge about ecological functionality, and to model the spatial structure of landscape. Fuzzy sets describe the attributes of thematically defined land units and their assessment results. In this way, the available information will be preserved in their full diversity. The fuzzy operations are executed by AML-programs (ARC/INFO Macro Language. With such a tight coupling, it is possible to use the geographical functions (neighbourhoods, distances, etc. of GIS within the fuzzy system directly.

  3. Development of a Systemwide Predator Control Program, Volume I : Stepwise Implementation of a Predation Index, Predator Control Fisheries, and Evaluation Plan in the Columbia River Basin, 1993 annual report.

    Energy Technology Data Exchange (ETDEWEB)

    Willis, Charles F.; Ward, David L.

    1995-06-01

    Modified Merwin trap nets were tested by an experimental fishery in the Columbia River downstream from McNary Dam to determine their effectiveness in selectively harvesting northern squawfish (Ptychocheilus oregonensis) over 11 inches in total length. The fishery was evaluated for its potential to supplement exploitation rates of the sportreward and dam-angling fisheries to achieve the objectives of the northern squawfish management program. Special consideration was given to the potential for, and impact on, incidental catches of adult salmonids (Oncorhynchus spp.) listed as threatened and endangered under the Endangered Species Act (ESA). Preseason site and data surveys identified suitable fishing locations where physical parameters are favorable to trap-net deployment and northern squawfish habitat was present. A total of 16 floating trap nets were operated from June 2 through August 4, 1993. We made 1,392 sets with a mean soak time of 2.9 hours. The total catch was 45,803 fishes including 10,440 (23% of the total catch) northern squawfish of which 1,688 (4% of the total catch) were large (greater than 11 inches in total length). Mean catch rate was 0.3 large northern squawfish per hour of soak time. Nearly all incidentally captured fishes were released alive and in good condition. Bycatch of adult salmonids totaled 1,036 fishes (2% of the total catch). Operational criteria, designed to limit incidental take of salmonids, restricted the fishing time, dates, and locations. In addition, lack of prior operating experience with the gear type and limited gear effectiveness in high velocities found in the free-flowing river below Bonneville Dam contributed to the low harvest rate for northern squawfish. We determined that a large scale floating trap-net fishery outside the boat restricted zones (BRZs) of hydropower projects would not significantly improve the exploitation rate of northern squawfish either above or below Bonneville Dam.

  4. Evaluation of the fishery status for King Soldier Bream Argyrops spinifer in Pakistan using the software CEDA and ASPIC

    Science.gov (United States)

    Memon, Aamir Mahmood; Liu, Qun; Memon, Khadim Hussain; Baloch, Wazir Ali; Memon, Asfandyar; Baset, Abdul

    2015-07-01

    Catch and effort data were analyzed to estimate the maximum sustainable yield (MSY) of King Soldier Bream, Argyrops spinifer (Forsskål, 1775, Family: Sparidae), and to evaluate the present status of the fish stocks exploited in Pakistani waters. The catch and effort data for the 25-years period 1985-2009 were analyzed using two computer software packages, CEDA (catch and effort data analysis) and ASPIC (a surplus production model incorporating covariates). The maximum catch of 3 458 t was observed in 1988 and the minimum catch of 1 324 t in 2005, while the average annual catch of A. spinifer over the 25 years was 2 500 t. The surplus production models of Fox, Schaefer, and Pella Tomlinson under three error assumptions of normal, log-normal and gamma are in the CEDA package and the two surplus models of Fox and logistic are in the ASPIC package. In CEDA, the MSY was estimated by applying the initial proportion (IP) of 0.8, because the starting catch was approximately 80% of the maximum catch. Except for gamma, because gamma showed maximization failures, the estimated results of MSY using CEDA with the Fox surplus production model and two error assumptions, were 1 692.08 t ( R 2=0.572) and 1 694.09 t ( R 2=0.606), respectively, and from the Schaefer and the Pella Tomlinson models with two error assumptions were 2 390.95 t ( R 2=0.563), and 2 380.06 t ( R 2=0.605), respectively. The MSY estimated by the Fox model was conservatively compared to the Schaefer and Pella Tomlinson models. The MSY values from Schaefer and Pella Tomlinson models were the same. The computed values of MSY using the ASPIC computer software program with the two surplus production models of Fox and logistic were 1 498 t ( R 2=0.917), and 2 488 t ( R 2=0.897) respectively. The estimated values of MSY using CEDA were about 1 700-2 400 t and the values from ASPIC were 1 500-2 500 t. The estimates output by the CEDA and the ASPIC packages indicate that the stock is overfished, and needs some

  5. A case study on the impact of industrial effluent disposal on the fishery of Amba River Estuary, Maharashtra

    Digital Repository Service at National Institute of Oceanography (India)

    Gajbhiye, S.N.; Mehta, P.; Mustafa, S.; Nair, V.R.

    The impact of waste discharge on fishery resources is a matter of great concern. The accepted norm in all environmental impact assessment studies is to avoid areas of high fishery potential while locating a marine outfall. Contemplating...

  6. Fisheries: climate change impacts and adaptation

    International Nuclear Information System (INIS)

    The report entitled Climate Change Impacts and Adaptation : A Canadian Perspective, presents a summary of research regarding the impacts of climate change on key sectors over the past five years as it relates to Canada. This chapter on fisheries focuses on the impact of climate change on Canada's marine and freshwater fisheries, and the role of adaptation in reducing the vulnerability of the sector. Canadian fisheries encompass the Atlantic, Pacific and Arctic oceans as well as freshwater systems. Fish health, productivity and distribution is strongly influenced by climatic factors such as air and water temperature, precipitation and wind. Most fish species have a distinct set of environmental conditions for optimal growth and survival. If the conditions change in response to changing climate, the fish may be affected. Some of the impacts include reduced growth, increased competition, a shift in species distribution, greater susceptibility to disease, and altered ecosystem function. Studies show that in some areas, fisheries may already be experiencing the effect of climate change. Recommendations were suggested on how to deal with the impacts associated with climate change in sensitive environments. It was noted that actions taken in the fisheries sector will have implications for the water resources, transportation, tourism and human health sectors. 103 refs., 2 tabs., 6 figs

  7. Bayesian inference and assessment for rare-event bycatch in marine fisheries: a drift gillnet fishery case study.

    Science.gov (United States)

    Martin, Summer L; Stohs, Stephen M; Moore, Jeffrey E

    2015-03-01

    Fisheries bycatch is a global threat to marine megafauna. Environmental laws require bycatch assessment for protected species, but this is difficult when bycatch is rare. Low bycatch rates, combined with low observer coverage, may lead to biased, imprecise estimates when using standard ratio estimators. Bayesian model-based approaches incorporate uncertainty, produce less volatile estimates, and enable probabilistic evaluation of estimates relative to management thresholds. Here, we demonstrate a pragmatic decision-making process that uses Bayesian model-based inferences to estimate the probability of exceeding management thresholds for bycatch in fisheries with model rates of rare-event bycatch and mortality using Bayesian Markov chain Monte Carlo estimation methods and 20 years of observer data; (2) predict unobserved counts of bycatch and mortality; (3) infer expected annual mortality; (4) determine probabilities of mortality exceeding regulatory thresholds; and (5) classify the fishery as having low, medium, or high bycatch impact using those probabilities. We focused on leatherback sea turtles (Dermochelys coriacea) and humpback whales (Megaptera novaeangliae). Candidate models included Poisson or zero-inflated Poisson likelihood, fishing effort, and a bycatch rate that varied with area, time, or regulatory regime. Regulatory regime had the strongest effect on leatherback bycatch, with the highest levels occurring prior to a regulatory change. Area had the strongest effect on humpback bycatch. Cumulative bycatch estimates for the 20-year period were 104-242 leatherbacks (52-153 deaths) and 6-50 humpbacks (0-21 deaths). The probability of exceeding a regulatory threshold under the U.S. Marine Mammal Protection Act (Potential Biological Removal, PBR) of 0.113 humpback deaths was 0.58, warranting a "medium bycatch impact" classification of the fishery. No PBR thresholds exist for leatherbacks, but the probability of exceeding an anticipated level of two deaths

  8. Impact of deep-sea fishery for Greenland halibut (Reinhardtius hippoglossoides) on non-commercial fish species off West Greenland

    DEFF Research Database (Denmark)

    Jørgensen, Ole A; Bastardie, Francois; Eigaard, Ole Ritzau

    2014-01-01

    Since the late 1980s, a deep-sea fishery for Greenland halibut (Reinhardtius hippoglossoides) has been developing gradually in West Greenland. Deep-sea fish species are generally long-lived and characterized by late age of maturity, low fecundity, and slow growth, features that probably cause low...... resilience following overexploitation. In order to evaluate whether populations of nine potential bycatch species are negatively affected by the commercial fishery for Greenland halibut, scientific data from bottom-trawl surveys conducted in the same area and period as the commercial fishery were analysed...... analyses show that most of the observed trends in abundance are probably not related to increasing fishing effort for Greenland halibut. The analysis did, however, show that most of the observed decreases in mean weight were significantly correlated with fishing effort during the 24-year period...

  9. Technical evaluation: 300 Area steam line valve accident

    International Nuclear Information System (INIS)

    On June 7, 1993, a journeyman power operator (JPO) was severely burned and later died as a result of the failure of a 6-in. valve that occurred when he attempted to open main steam supply (MSS) valve MSS-25 in the U-3 valve pit. The pit is located northwest of Building 331 in the 300 Area of the Hanford Site. Figure 1-1 shows a layout of the 300 Area steam piping system including the U-3 steam valve pit. Figure 1-2 shows a cutaway view of the approximately 10- by 13- by 16-ft-high valve pit with its various steam valves and connecting piping. Valve MSS-25, an 8-in. valve, is located at the bottom of the pit. The failed 6-in. valve was located at the top of the pit where it branched from the upper portion of the 8-in. line at the 8- by 8- by 6-in. tee and was then ''blanked off'' with a blind flange. The purpose of this technical evaluation was to determine the cause of the accident that led to the failure of the 6-in. valve. The probable cause for the 6-in. valve failure was determined by visual, nondestructive, and destructive examination of the failed valve and by metallurgical analysis of the fractured region of the valve. The cause of the accident was ultimately identified by correlating the observed failure mode to the most probable physical phenomenon. Thermal-hydraulic analyses, component stress analyses, and tests were performed to verify that the probable physical phenomenon could be reasonably expected to produce the failure in the valve that was observed

  10. Commercial coral-reef fisheries across Micronesia: A need for improving management

    Science.gov (United States)

    Houk, P.; Rhodes, K.; Cuetos-Bueno, J.; Lindfield, S.; Fread, V.; McIlwain, J. L.

    2012-03-01

    A dearth of scientific data surrounding Micronesia's coral-reef fisheries has limited their formal assessment and continues to hinder local and regional management efforts. We approach this problem by comparing catch-based datasets from market landings across Micronesia to evaluate fishery status in the Commonwealth of the Northern Mariana Islands (CNMI), Guam, Yap, and Pohnpei. Initial examinations found that calm weather and low lunar illumination predicted between 6% (Yap) and 30% (CNMI) of the variances in daily commercial landings. Both environmentally driven catch success and daily catch variability increased in accordance with reef-fish demand indices. Subsequent insight from species composition and size-at-capture data supported these findings, highlighting reduced trophic levels and capture sizes where higher human-population-per-reef-area existed. Among the 12-15 target species and/or species complexes that accounted for 70% of the harvest biomass, capture sizes were consistently smallest for CNMI and Guam, often below the reported mean reproductive sizes. Comparatively, Pohnpei has the greatest potential for reef fisheries, with a large reef area (303 km2) and a moderate human population (34,000 people). However, the estimated harvest volume of 476 mt year-1 was 8-9 times higher than other jurisdictions. Even on Yap where the reef-fish demand index was lowest (67.7 people km-2 reef habitat), many target fish were harvested below their mean reproductive sizes, including the iconic green bumphead parrotfish and humphead wrasse, as well as several other herbivores. We discuss our results with respect to the contemporary doctrine surrounding size-spectra, catch composition, and catch frequencies that afford insight into fishery pressure and status. We posit that regional catch-based policies (initially) instituted at the market level, combined with area and gear-based restrictions, represent plausible vectors for improving Micronesian fisheries.

  11. Fisheries Management Plan: Rice Lake National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — Rice Lake National Wildlife Refuge provides a sport fishery on three of the four refuge lakes. Fishing is restricted to designated areas. Rice Lake, though not open...

  12. 76 FR 23996 - North Pacific Fishery Management Council Public Meeting

    Science.gov (United States)

    2011-04-29

    ... area boundary; review report on Northern Bering Sea Research Plan. 5. Gulf of Alaska (GOA) Salmon Issues: Final action of GOA Chinook Salmon Bycatch Pollock fishery. 6. Bering Sea Aleutian Island...

  13. Areas of concern for the evaluation of transgenic arthropods

    International Nuclear Information System (INIS)

    Areas of concern for the release of transgenic insects relate to risks associated with: (1) the host insect involved, (2) the vector used for gene transfer, (3) genes of interest within the vector including markers, and (4) the expected persistence of the transgenic strain in the environment. The transgenic insect must be considered in terms of whether it is a pest or beneficial insect and risks relevant to its use as a non-transgenic insect. The vector used for gene transfer must be considered in terms of its mobility properties in the host insect and its potential for intra-genomic and inter-genomic movement, potentially mediated by a cross-mobilizing system. Intra-genomic movement may influence the expected expression and activity of gene of interest within the transgene, possibly having unanticipated effects on the host and, thus, program effectiveness. Inter-genomic movement is of considerable importance since risks must be evaluated in terms of the effects of the vector system and genes of interest on a multitude of potential host organisms. Risk assessment for transgene stability requires methods for transformant identification and a full genetic analysis of the transformed genome so changes in transgene presence or movement can be rapidly and reliably determined. Genes of interest within the transgene must be evaluated in terms of their affect on the host insect, and the potential influence of their gene products on the environment and other organisms should the transgene be transmitted to another host. These factors must be considered individually, their interaction with one another, and also in the context of transformant strain persistence in the field. (author)

  14. USVI commercial fisheries cost data

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — To assist the Caribbean Fishery Management Council in managing marine living resources in the United States Virgin Islands, the Southeast Fisheries Science Center...

  15. 50 CFR 697.23 - Restricted gear areas.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 9 2010-10-01 2010-10-01 false Restricted gear areas. 697.23 Section 697.23 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC... Measures § 697.23 Restricted gear areas. (a) Resolution of lobster gear conflicts with fisheries...

  16. 50 CFR 648.296 - Gear restricted areas.

    Science.gov (United States)

    2010-10-01

    ... Tilefish Fishery § 648.296 Gear restricted areas. No vessel of the United States may fish with bottom... 50 Wildlife and Fisheries 8 2010-10-01 2010-10-01 false Gear restricted areas. 648.296 Section 648.296 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND...

  17. Spring Chinook Salmon Interactions Indices and Residual/Precocial Monitoring in the Upper Yakima Basin; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2001-2002 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Pearsons, Todd N.; James, Brenda B.; Johnson, Christopher L. (Washington Department of Fish and Wildlife, Olympia, WA)

    2003-05-01

    . 1997). Monitoring ecological interactions will be accomplished using interactions indices. Interactions indices will be used to index the availability of prey and competition for food and space. The tasks described below represent various subject areas of juvenile spring chinook salmon monitoring but are treated together because they can be accomplished using similar methods and are therefore more cost efficient than if treated separately. Three areas of investigation we pursued in this work were: (1) strong interactor monitoring (competition index and prey index), (2) carrying capacity monitoring (microhabitat monitoring); (3) residual and precocial salmon monitoring (abundance). This report is organized into three chapters to represent these three areas of investigation. Data were collected during the summer and fall, 2002 in index sections of the upper Yakima Basin (Figure 1). Hatchery reared spring chinook salmon were first released during the spring of 1999. The monitoring plan for the Yakima/Klickitat Fisheries Project calls for the continued monitoring of the variables covered in this report. All findings in this report should be considered preliminary and subject to further revision as more data and analytical results become available.

  18. Ecotoxicological sediment evaluations in marine aquaculture areas of Chile.

    Science.gov (United States)

    Rudolph, Anny; Medina, Paulina; Urrutia, Carolina; Ahumada, Ramón

    2009-08-01

    Given its geographic characteristics, the southern Chilean fjord area is subjected to growing environmental pressure from the development of diverse forms of aquaculture (i.e., fish, algae, shellfish). The sediments accumulate substances as a natural sink, and ecotoxicology assays offer a reliable and robust proxy for sediment quality analyses. This study's objective was to establish a mid-range toxicity base line for the sediments in the region by applying a battery of non-specific ecotoxicological assays. Sediment samples (28) were collected in the channels and fjords studied during the CIMAR-Fiordos 11 cruise (July 2005). The sediments were evaluated using different species endemic to the eastern Pacific as targets: Ampelisca araucana, Tisbe longicornis, Arbacia spatuligera, and Dunaliella tertiolecta. The conditions for each assay were reported previously. Of the four species used as ecotoxicological tools, only D. tertiolecta differed significantly from the control group (negative) in terms of its growth. This difference could be attributed to nutrient enrichment. In general, we concluded that, although local changes occurred in the sediments, the mesoscale magnitude of the ecotoxicological alterations was small. Nonetheless, a surveillance program should be implemented that would allow us to follow-up and analyze the changes that are taking place in the systems on broader scales of time and space. PMID:18633720

  19. Isotope hydrology applied to evaluation of groundwater in arid areas

    International Nuclear Information System (INIS)

    Capture of underground water in arid or semi-arid areas in developing countries is essential to safeguarding life. In order to realize in time, or to prevent, endangerment of exploitable groundwater resources due to pollution or excess exploitation, isotope hydrology offers low-cost methods that are applied along with other methods. Their results contribute to determine the origin, mixing, residence time (or age), and pollution of endangered groundwater resources. The research report in hand uses the results of hydrochemical analyses and isotope hydrological data from hydrogeological studies made over some years by the Bundesanstalt fuer Geowissenschaften und Rohstoffe in six selected countries: Jordan, Cyprus, Brazil, Sudan, Djibouti, Senegal. It also uses data of recent analyses of the years 1985 and 1986. Data evaluation is done applying modern, qualitative and quantitative methods of interpretation. The available long-term series of isotopic data are scanned for any early information on water quality deterioration that is not otherwise detected. The information thus obtained is a prerequisite of urgently needed measures for protecting the groundwater reserves. (orig./HP)

  20. Fisheries and climate

    DEFF Research Database (Denmark)

    Brander, Keith

    2009-01-01

    Fish stocks and the fisheries based on them have always experienced variability due to climate. Changes in temperature, salinity, winds, ocean currents, oxygen, and other factors affect their distribution, growth, survival, and recruitment. Examples of such effects are given for several regions...... of the oceans and the processes are described. Poleward distribution shifts have occurred since the 1960s and can be attributed to the effects of anthropogenic climate change with a high degree of confidence. In addition to climate effects, fisheries are subjected to other anthropogenic stresses, including high...... fishing mortality, loss of habitat, pollution, and introduction of alien species. These interact and may reduce the resilience of exploited stocks, although climate change may also increase productivity in some cases. Fisheries production depends on primary production, but to date we have low confidence...

  1. Management of complex fisheries

    DEFF Research Database (Denmark)

    Frost, Hans Staby; Andersen, Peder; Hoff, Ayoe

    2013-01-01

    The purpose of this paper is to demonstrate how fisheries economics management issues or problems can be analyzed by using a complex model based on conventional bioeconomic theory. Complex simulation models contain a number of details that make them suitable for practical management advice......, including taking into account the response of the fishermen to implemented management measures. To demonstrate the use of complex management models this paper assesses a number of second best management schemes against a first rank optimum (FRO), an ideal individual transferable quotas (ITQ) system....... This is defined as the management scheme which produces the highest net present value over a 25 year period. The assessed management schemes (scenarios) are composed by several measures as used in the Common Fisheries Policy of the European Union for the cod fishery in the Baltic Sea. The scenarios are total...

  2. 50 CFR 648.73 - Closed areas.

    Science.gov (United States)

    2010-10-01

    ... 50 Wildlife and Fisheries 8 2010-10-01 2010-10-01 false Closed areas. 648.73 Section 648.73 Wildlife and Fisheries FISHERY CONSERVATION AND MANAGEMENT, NATIONAL OCEANIC AND ATMOSPHERIC ADMINISTRATION.... latitude. (b) Areas closed because of small surf clams. Areas may be closed because they contain small...

  3. What is Fisheries Science?

    OpenAIRE

    Institute, Marine

    2006-01-01

    Fisheries science is a branch of marine science that deals with studies on the life history and state of fish stocks. The term ‘life history’ refers to the general biology of a fish stock (e.g. when/where do the fish spawn? How fast do they grow?). The term ‘state of a fish stock’ refers to the number and weight of fish in the stock (i.e. current stock biomass in tonnes). The overall aim of fisheries science is to provide information to managers on the state and life history of the stocks. Th...

  4. 78 FR 3401 - Fisheries of the Northeastern United States; Atlantic Mackerel, Squid, and Butterfish Fisheries...

    Science.gov (United States)

    2013-01-16

    ...; Atlantic Mackerel, Squid, and Butterfish Fisheries; Scoping Process; Mid-Atlantic Fishery Management... support for an amendment (Amendment 16) to the Fishery Management Plan (FMP) for Atlantic Mackerel,...

  5. Evaluating biodiversity conservation around a large Sumatran protected area.

    Science.gov (United States)

    Linkie, Matthew; Smith, Robert J; Zhu, Yu; Martyr, Deborah J; Suedmeyer, Beth; Pramono, Joko; Leader-Williams, Nigel

    2008-06-01

    Many of the large, donor-funded community-based conservation projects that seek to reduce biodiversity loss in the tropics have been unsuccessful. There is, therefore, a need for empirical evaluations to identify the driving factors and to provide evidence that supports the development of context-specific conservation projects. We used a quantitative approach to measure, post hoc, the effectiveness of a US$19 million Integrated Conservation and Development Project (ICDP) that sought to reduce biodiversity loss through the development of villages bordering Kerinci Seblat National Park, a UNESCO World Heritage Site in Indonesia. We focused on the success of the ICDP component that disbursed a total of US$1.5 million through development grants to 66 villages in return for their commitment to stop illegally clearing the forest. To investigate whether the ICDP lowered deforestation rates in focal villages, we selected a subset of non-ICDP villages that had similar physical and socioeconomic features and compared their respective deforestation rates. Village participation in the ICDP and its development schemes had no effect on deforestation. Instead, accessible areas where village land-tenure had been undermined by the designation of selective-logging concessions tended to have the highest deforestation rates. Our results indicate that the goal of the ICDP was not met and, furthermore, suggest that both law enforcement inside the park and local property rights outside the park need to be strengthened. Our results also emphasize the importance of quantitative approaches in helping to inform successful and cost-effective strategies for tropical biodiversity conservation. PMID:18336620

  6. Utilization of fisheries by-catch and processing wastes for lactic acid fermented silage and evaluation of degree of protein hydrolysis and in vitro digestibility

    OpenAIRE

    J. C. Ramírez- Ramírez; Huerta, S; Arias, L.; Prado, A.; Shirai, K.

    2008-01-01

    The purpose of this study was to produce protein hydrolysates from lactic acid fermentation of three sources of fish wastes: Shrimp by catch (SC), Sphyraena ensis wastes (SB) and mixture of fisheries processing wastes from several species (MixW). MixW were added with several sugar cane molasses concentrations as the carbon source, 180 g.kg-1 of sugar molasses gave the fastest acidification. The maximum concentration of lactic acid (Pmax) was significantly higher with Lactobacillus sp. B2 than...

  7. Comparative Analysis and Comprehensive Evaluation of Fishery Water Quality of the Major Lakes in Jiangsu Province Based on Long-term Monitoring Data

    Institute of Scientific and Technical Information of China (English)

    Wei; WANG; Xiangke; FAN; Chungui; HUANG; Hao; ZHENG; Zhijun; CHEN; Baohong; FAN; Chenwu; XU

    2015-01-01

    The variance analysis of fishery water quality data of five lakes from 2001 to 2011( except 2004) was performed to compare the difference of the monitoring indicators among the five above-mentioned lakes in Jiangsu Province. And TOPSIS method was employed to give comprehensive comparison of water quality of the five lakes. The results indicated that the difference of 14 major water quality indicators was very significant among lakes except copper. In addition,transparency,total nitrogen,total phosphorus had very significant difference among stations for each lake; p H,chemical oxygen demand,oil,total phosphorus,lead,cadmium,mercury had significant or very significant difference among years for each station. The TOPSIS results showed that the fishery water quality of Gaobaoshaobo Lake was the best,and Luoma Lake was just second to it,followed by Hongze Lake,Taihu Lake and Gehu Lake. In combination with the geographic position of each lake,it showed that fishery water quality of the five investigated lakes was basically increasingly better from the south to the north in Jiangsu Province,and the trend revealed high association with the developed industrial economy.

  8. Métiers, effort and catches of a Mediterranean small-scale coastal fishery: The case of the Côte Bleue Marine Park

    OpenAIRE

    Leleu, Kevin; Pelletier, Dominique; Charbonnel, Eric; Letourneur, Yves; Alban, Frederique; Bachet, Frederic; Boudouresque, Charles F.

    2014-01-01

    The overexploitation of fishery resources has led to a major fisheries crisis. In this context, artisanal fisheries, and in particular small-scale coastal fisheries, appear as relevant alternatives for a sustainable use of coastal resources. Marine Protected Areas (MPA) are more and more used as management tools for these fisheries, as protection effects and targeted access regulations may benefit to commercial fishers. Managers and scientists need then quantitative information not only to ad...

  9. Hambantota Fishery Harbour

    NARCIS (Netherlands)

    Everts, P.S.; Julianus, E.J.B.; Marijnissen, M.; Voorend, S.J.M.

    2014-01-01

    At the southern coast of Sri Lanka a small fishery harbour is located in Hambantota. Soon after construction of the harbour in 2006 the harbour started silting up at various places. From that point onwards the harbour’s basin has been dredged multiple times, but the problem turned out to be structur

  10. STATE SUPPORT IN FISHERY

    Directory of Open Access Journals (Sweden)

    Irena Jahutka

    2004-06-01

    Full Text Available By passing the law on state support in agriculture, fishery and forestry the former support system has been changed. Fishery support beneficiaries can use several kinds of support and help. Former financial stimulations for fishery regulated by law from 1995 to 1st January 2003 were settled by the production stimulation model. Besides that well received model, there are the capital investment model, the support in production insurance, the right to use blue diesel, and granting credit for production of freshwater and saltwater fry, adult fish and shells. These five models of support and help can be used by freshwater and saltwater fish and shell breeders, while for fishing the marine fish the production stimulation model is applied (fishing of small pelagic fish, as well as the capital investment model and right to use blue diesel. Marine and freshwater processors can use the production stimulation and the capital investment model. All these models have in common the fact that all physical and legal entities registered for fishing activities (having licence for commercial fishery, aquaculture (the licence for aquaculture or the one for fish and other marine organisam breeding and processing (having the regulated veterinarian and sanitary conditions, the registration document and having been registered in the List of approved facilities have the right to use them.

  11. EUROPEAN FISHERIES FUND – NEW DEVELOPMENT OPPORTUNITIES FOR ROMANIA

    Directory of Open Access Journals (Sweden)

    CLAUDIA DIANA SABĂU-POPA

    2010-01-01

    Full Text Available This article analyses the financial support given by the European Union to the member states on the purpose of enduring development of their fishing area, as well as the new development opportunities for Romania. The main financing instrument of the common fisheries policy is the European Fisheries Fund, which is managed alike the structural funds. This fund supports the European fisheries and aquaculture area in its effort to adapt a new fleet, whose competitiveness must be consolidated, and encourages the application of some measures meant to protect and improve the environment. In the case of Romania, the increase of the European Fisheries Fund’s absorption has become a priority for the Managing Authorities of this Fund, in order to stimulate the development of the Romanian market for fishing products, a market having a great potential.

  12. 78 FR 25214 - Magnuson-Stevens Fishery Conservation and Management Act Provisions; Fisheries of the...

    Science.gov (United States)

    2013-04-30

    ... monkfish within the Northern or Southern Fishery Management Areas. DATES: This rule is effective at 0001 hr... February 25, 2013 (78 FR 12708). Public comments were accepted through March 12, 2013. A full discussion of... October 26, 2011 (76 FR 66192), would remain in effect for the rest of FY 2013. 1. Monkfish...

  13. 76 FR 82180 - International Fisheries; Western and Central Pacific Fisheries for Highly Migratory Species...

    Science.gov (United States)

    2011-12-30

    ... part on the findings by the WCPFC that the stock of bigeye tuna (Thunnus obesus) in the WCPO was... seine gear may not discard at sea within the Convention Area any bigeye tuna (Thunnus obesus), yellowfin...; Western and Central Pacific Fisheries for Highly Migratory Species; Fishing Restrictions for Bigeye...

  14. 77 FR 32420 - Atlantic Coastal Fisheries Cooperative Management Act Provisions; American Lobster Fishery

    Science.gov (United States)

    2012-06-01

    ... fishing year. ADDRESSES: Copies of the American Lobster Environmental Assessment/ Regulatory Impact Review... Federal lobster fishery management measures in the Exclusive Economic Zone (EEZ) under the authority of... Federal Register (74 FR 67) to notify the public that any further investment in the Area 1 trap...

  15. 75 FR 33242 - Atlantic Coastal Fisheries Cooperative Management Act Provisions; Weakfish Fishery

    Science.gov (United States)

    2010-06-11

    ... the provisions of the Atlantic Coastal Fisheries Cooperative Management Act (Atlantic Coastal Act... National Oceanic and Atmospheric Administration RIN 0648-XW45 Atlantic Coastal Fisheries Cooperative Management Act Provisions; Weakfish Fishery AGENCY: National Marine Fisheries Service (NMFS),...

  16. Rural areas, land planning and heritage evaluation: some educational proposals

    OpenAIRE

    Mascarenhas, José Manuel de; Themudo Barata, Filipe; Capelo, Sofia; Maharjan, Monalisa

    2014-01-01

    Rural areas are frequently neglected in development politics and processes. This problem has become especially important in peri-urban zones affecting a large amount of people in what concerns mainly basic resources as well as livelihoods, pattern of life, heritage and culture, and identity. Only with land planning it is possible to condition the rural areas deterioration and preserve heritage values that are a resource with a real economic potential, although they are usually seen as a burde...

  17. Public health evaluation of waste management plan of urban areas of Florence

    International Nuclear Information System (INIS)

    Public health evaluation impact for solid municipal waste management of Florence urban areas is considered. In this case study the evaluation step of screening show the environmental analysis of pollutants in the urban areas and epidemiologic study of exposed population in the area

  18. NATURAL AND ARTIFICIAL RADIOACTIVITY IN IMPORTED FISHERY PRODUCTS

    Directory of Open Access Journals (Sweden)

    R. Cavallina

    2013-02-01

    Full Text Available Considering the growing public concern over marine environmental quality, a program of monitoring radionuclids in imported fishery products has been established. The analyses have been performed by gamma spectrometry allowing the rapid detection of many artificial radionuclides such as 137Cs, 134Cs and 40K. The data obtained show Cs radionuclides levels within expected limits. The detection of natural radionuclide K showed different levels in the same fishery product as they came from different sea areas.

  19. Estimation of unreported catch in a commercial trawl fishery

    OpenAIRE

    McBride, Margaret Mary

    1991-01-01

    The Institute of Marine Research (IMR), Bergen, has carried out combined bottom trawl and acoustic surveys for cod in the Barents Sea since 1981. Commercial statistics are collected routinely for this area through the Directorate of Fisheries; the Institute collects length and age samples of these landings. Also, the Institute of Fishery Technology Research conducted studies of cod-end selectivity for Norwegian bottom trawlers in the Barents Sea during 1989. These data are read...

  20. Application of fish biology in management of the fisheries

    OpenAIRE

    Mbabazi, D.; Namulemo, G.

    2001-01-01

    All biological aspects of the stock are of scientific interest. Specific biological parameters are used either in estimating; yield, or providing a basis for suggesting fisheries management strategies, growth, mortality and stock size are the main determinants of yield, and aspects such as the timing of spawning and recruitment are important in considering management measures. In fisheries science, fish biology contributes in two broad areas; a) Basic biology and distribution of resourc...

  1. Scientific, Technical and Economic Committee for Fisheries (STECF) - Report of the SGMOS-07-01 Working Group on the Evaluation of "Policy Statement Harvest Rules"

    OpenAIRE

    Sinclair, Alan

    2008-01-01

    SGMOS-07-01 was held on 12 ¿ 16 March 2007 in Lisbon (Portugal). The meeting was convened to focus on the examination of the TAC-setting rules in paragraphs 4.1, 4.2 and 4.3 of the Commission's Communication COM (2006) 499 final (Fishing Opportunities for 2007. Policy Statement from the European Commission), and to advise on the likely long-term (ca. 10-year) consequences, and associated risks for the stocks and the fisheries, in terms of a) the future development of spawning biomass, and ass...

  2. Evaluating local benefits from conservation in Nepal's Annapurna Conservation Area.

    Science.gov (United States)

    Spiteri, Arian; Nepal, Sanjay K

    2008-09-01

    Protected areas are integral to the global effort to conserve biodiversity, and, over the past two decades, protected area managers have begun to recognize that conservation objectives are next to impossible to achieve without considering the needs and concerns of local communities. Incentive-based programs (IBPs) have become a favored approach to protected area management, geared at fostering local stewardship by delivering benefits tied to conservation to local people. Effective IBPs require benefits to accrue to and be recognized by those experiencing the greatest consequences as a result of the protected area, and those likely to continue extractive activities if their livelihood needs are compromised. This research examines dispersal of IBP benefits, as perceived by local residents in Nepal's Annapurna Conservation Area. Results reported here are based on questionnaire interviews with 188 households conducted between September and December 2004. Results indicate that local residents primarily identify benefits from social development activities, provisions for resource extraction, and economic opportunities. Overall, benefits have been dispersed equally to households in villages on and off the main tourist route, and regardless of a household's participation in tourism. However, benefits are not effectively targeted to poorer residents, those highly dependent on natural resources, and those experiencing the most crop damage and livestock loss from protected wildlife. This article provides several suggestions for improving the delivery of conservation incentives. PMID:18458999

  3. An evaluation of Access Tier local area network switches.

    Energy Technology Data Exchange (ETDEWEB)

    Eldridge, John M.; Olsberg, Ronald R.

    2004-06-01

    This reports tabulates the Test and Evaluation results of the Access Class Switch tests conducted by members of Department 9336. About 15 switches were reviewed for use in the enterprise network as access tier switches as defined in a three tier architecture. The Access Switch Tier has several functions including: aggregate customer desktop ports, preserve and apply QoS tags, provide switched LAN access, provide VLAN assignment, as well as others. The typical switch size is 48 or less user ports. The evaluation team reviewed network switch evaluation reports from the Tolly Group as well as other sources. We then used these reports as a starting point to identify particular switches for evaluation. In general we reviewed the products of dominant equipment manufacturers. Also, based on architectural design requirements, the majority of the switches tested were of relatively small monolithic unit variety.

  4. Integrated Evaluation on Highway Engineering Geological Hazard in Mountainous Area of Enshi, Hubei

    Institute of Scientific and Technical Information of China (English)

    ZHAN Bin

    2006-01-01

    Aiming at the geological features of highway engineering in mountainous area of Enshi, Hubei Province, the principles to set up an integrated evaluation system for highway engineering geological hazard are formulated. Then, the integrated evaluation system for highway engineering geological hazard in mountainous area of Enshi is established. In the evaluation system, the first-level evaluation indices are geological development degree, geological conditions, and damaging power, whereas the second-level indices including key factors affecting main kinds of geological hazard. Meanwhile, the borders of indices are determined. At last, the method of Fuzzy Comprehensive Evaluation (FCE) is adopted to quantitatively evaluate the highway engineering geological hazard in mountainous area of Enshi.

  5. Factors of Ukrainian fisheries deterioration in terms of industrial enterprises mechanism of management formation

    Directory of Open Access Journals (Sweden)

    Natalia Yarkina

    2013-05-01

    Full Text Available Analysis of factors predetermining the crisis situation of Ukrainian fisheries from the point of view of the appropriate areas of fishing activities, namely: aquaculture, fishery in the Black Sea and the Sea of Azov basin, ocean fishery is described in this article. Along with the transition period, common economical reasons which stipulated crisis tendencies of national fisheries development, certain industrial sectors were characterized by specifically industrial factors of fish catching volume reduction. Particularly, reasons of fish farming commodity production decreasing were such as: business environment changes; inadequate privatization; deterioration of fish farming technology; deterioration of Ukrainian market situation for national fish producer. In addition, fishery resources depletion reaching critical point also affected negatively the fish catching volume from inland water bodies. Reasons of catastrophic situation in national oceanic fishing are following: modifications of juridical and international legal terms in fishery; fishery monitoring by international fishery regional agencies; steady growth of world oil and oil products prices; quantitative and qualitative deterioration of ocean fleet bases. It is stated that resolution of the problems related to both the stagnation of national fishery and putting industrial enterprises out of crisis is basically outside the specific business entity competence and requires an immediate governmental interference. The set of measures of governmental support for revival and development of Ukrainian fisheries as a strategically important branch of national economy which was worked out with regard to identified factors of Ukrainian fisheries deterioration is to become one of key elements of fish industry enterprises mechanism of management

  6. Green growth in fisheries

    DEFF Research Database (Denmark)

    Nielsen, Max; Ravensbeck, Lars; Nielsen, Rasmus

    2014-01-01

    Climate change and economic growth have gained a substantial amount of attention over the last decade. Hence, in order to unite the two fields of interest, the concept of green growth has evolved. The concept of green growth focuses on how to achieve growth in environment-dependent sectors, without...... harming the environment. Fishery is an environment-dependent sector and it has been argued that there is no potential for green growth in the sector owing to global overexploitation, leaving no scope for production growth. The purpose of this paper is to explain what green growth is and to develop...... a conceptual framework. Furthermore, the aim is to show that a large green growth potential actually exists in fisheries and to show how this potential can be achieved. The potential green growth appears as value-added instead of production growth. The potential can be achieved by reducing overcapacity...

  7. Fishprint of Coastal Fisheries in Jalisco, Mexico

    Directory of Open Access Journals (Sweden)

    Myrna Leticia Bravo-Olivas

    2014-12-01

    Full Text Available Coastal fisheries contribute to global food security, since fish are an important source of protein for many coastal communities in the world. However, they are constrained by problems, such as weak management of fisheries and overfishing. Local communities perceive that they are fishing less, as in other fisheries in the world. The aim of this study was to evaluate the fisheries sustainability in the Jalisco coast through the fishing footprint, or fishprint (FP, based on the primary productivity required (PPR and the appropriated surface by the activity (biocapacity. The total catch was 20,448.2 metric tons from 2002–2012, and the average footprint was calculated to be 65,458 gha/year, a figure that quadrupled in a period of 10 years; the biocapacity decreased, and the average trophic level of catches was 3.1, which implies that it has remained at average levels, resulting in a positive balance between biocapacity and ecological footprint. Therefore, under this approach, the fishing activity is sustainable along the coast of Jalisco.

  8. LANDSCAPE ARCHITECTURE IN FISHERIES

    OpenAIRE

    Branka Aničić; Tomislav Treer

    1997-01-01

    The improvement of living conditions and technology and particularly devel- oped conscious about the environment, influenced radical changes of the approach to the agricultural production in western civilization. This is related to the fisheries, too, which also undergo significant changes in Croatia during recent years. The trend of higher aquaculture production and catches in open waters and in the sea is substituted by the seeking for alternative possibilities and higher social and cultura...

  9. Endangered species: where leatherback turtles meet fisheries.

    Science.gov (United States)

    Ferraroli, Sandra; Georges, Jean-Yves; Gaspar, Philippe; Le Maho, Yvon

    2004-06-01

    The dramatic worldwide decline in populations of the leatherback turtle (Dermochelys coriacea) is largely due to the high mortality associated with their interaction with fisheries, so a reduction of this overlap is critical to their survival. The discovery of narrow migration corridors used by the leatherbacks in the Pacific Ocean raised the possibility of protecting the turtles by restricting fishing in these key areas. Here we use satellite tracking to show that there is no equivalent of these corridors in the North Atlantic Ocean, because the turtles disperse actively over the whole area. But we are able to identify a few 'hot spots' where leatherbacks meet fisheries and where conservation efforts should be focused. PMID:15175741

  10. A geological-acoustical framework for an integrated environmental evaluation in Mediterranean marine protected areas. Marettimo Island, a case study

    Science.gov (United States)

    Agate, M.; Catalano, R.; Chemello, R.; Lo Iacono, C.; Riggio, S.

    2003-04-01

    A GEOLOGICAL-ACOUSTICAL FRAMEWORK FOR AN INTEGRATED ENVIRONMENTAL EVALUATION IN MEDITERRANEAN MARINE PROTECTED AREAS. MARETTIMO ISLAND, A CASE STUDY. M. Agate (1), R. Catalano (1), R. Chemello (2), C. Lo Iacono (1) &S. Riggio (2) (1)Dipartimento di Geologia e Geodesia dell'Università di Palermo, via Archirafi 26, 90123 Palermo, clageo@katamail.com, rcatal@unipa.it (2)Dipartimento di Biologia animale dell'Università di Palermo, via Archirafi 18, 90123 Palermo,rchemello@unipa.it New analytical methods have been designed to support an objective quantitative evaluation of geological components whose results dictate the lines for a sustainable use of the natural resources. We tried to adopt the fundaments of the seascape concept, based on the thematic elements of landscape ecology and translated into terms fitting with the principles of coastal ecology. The seascape concept is central to our view of the environment and is referred to as an integrated unit (Environmental Unit) resulting from a long multidisciplinary approach, carried out in both the field and the laboratory by an interdisciplinary team of experts. Side Scan Sonar and Multi Beam acoustical data collected in the Marettimo and Ustica Islands (south-western Tyrrhenian Sea))inner shelves, make possible to sketch geomorphological and sedimentological maps, whose details have been tested as deep as 45 m in diving surveys. On the basis of the collected data sets, the inner shelf (0-60 m) has been subdivided into different portions, following the concept of the Environmental Unit (E.U). Every E.U. presents constant morphological and sedimentological features that, probably, can be associated to specified biological communities. In order to find the relationships between physical settings and communities, geological thematic maps are eventually overlaid and fitted to macrobenthic and fishery spatial distribution maps. The result, based on the rule of the Environmental Impact Assessment, puts into evidence the

  11. Coastal set bagnet fishery in the Payra river, Bangladesh and its impact on fisheries and biodiversity

    Directory of Open Access Journals (Sweden)

    Md. Aminul Islam

    2015-04-01

    Full Text Available Objective: To assess the catch composition and seasonal variation in catch of set bagnet fishery from the coastal Payra river, to understand the importance and impact of set bagnet fishery on biodiversity and fisheries, and to find out feasible strategies to reduce the negative impact of set bagnet fishery. Methods: The research was conducted with selection of research area, preparation of gear survey and catch assessment form, sample collection, laboratory analysis and selection of analytical methods to achieve the objectives of the study. Results: A total of 52 species belonging to 23 families were recorded from set bagnet in the Payra river. Most important commercial fishes and their annual catch by set bagnet in the study area were 51.03 MT Ilish (Tenualosa ilisha, 8.83 MT Rita (Rita rita, 6.92 MT Air (Sperata aor, 4.72 MT Chital (Chitala chitala, 2.03 MT Boal (Wallago attu, 1.84 MT Baghair (Bagarius bagarius, 3.35 MT Foli (Notopterus notopterus and 13.46 MT Golda chingri (Macrobrachium rosenbergii. All these species were mostly caught at initial stages of their life cycle, which usually move with the tidal current. Conclusions: Study suggested that set bagnet should be restricted to allowable limit with strong monitoring system for the protection and conservation of valuable fish species in the coastal areas of Bangladesh.

  12. Coastal set bagnet fishery in the Payra river, Bangladesh and its impact on fisheries and biodiversity

    Institute of Scientific and Technical Information of China (English)

    Md Aminul Islam; Md Mahfuzul Haque; Zoarder Faruque Ahmed; Sultan Mahmud; Ashfaqun Nahar; Md Emranul Ahsan; Md Moazzem Hossain

    2015-01-01

    Objective: To assess the catch composition and seasonal variation in catch of set bagnet fishery from the coastal Payra river, to understand the importance and impact of set bagnet fishery on biodiversity and fisheries, and to find out feasible strategies to reduce the negative impact of set bagnet fishery. Methods: The research was conducted with selection of research area, preparation of gear survey and catch assessment form, sample collection, laboratory analysis and selection of analytical methods to achieve the objectives of the study. Results: A total of 52 species belonging to 23 families were recorded from set bagnet in the Payra river. Most important commercial fishes and their annual catch by set bagnet in the study area were 51.03 MT Ilish (Tenualosa ilisha), 8.83 MT Rita (Rita rita), 6.92 MT Air (Sperata aor), 4.72 MT Chital (Chitala chitala), 2.03 MT Boal (Wallago attu), 1.84 MT Baghair (Bagarius bagarius), 3.35 MT Foli (Notopterus notopterus) and 13.46 MT Golda chingri (Macrobrachium rosenbergii). All these species were mostly caught at initial stages of their life cycle, which usually move with the tidal current. Conclusions: Study suggested that set bagnet should be restricted to allowable limit with strong monitoring system for the protection and conservation of valuable fish species in the coastal areas of Bangladesh.

  13. Fishery impacts of peat production

    International Nuclear Information System (INIS)

    The total area of Finland's peat mining areas is approx. 60 000 ha. Increase in runoff from peat mining areas and changes in the quality of the runoff water, such as rises in solid matter, humus and nutrient content, result in a higher load on the lakes and rivers downstream peat mining areas. Loading from peat mining areas has been found to increase the bacterioplankton densities and change the species composition of phytoplankton in watercourses. Periphytic biomass has increased but zooplankton biomass and diversity have decreased. Corresponding changes and decreases in the number of species have also been observed in the bottom fauna of flowing waters. The loading caused by peat mining affects the fish stocks either directly or via changes in reproduct conditions and the availability of food organisms. Direct effects can be revealed as withdrawal of fish, their weakened condition and increased susceptibility to diseases, tainting or, in the worst case, even fish kills. Both organic and inorganic solid matter loading which deposits on the bottom have the most pronounced effects on fish reproduction and bottom fauna used as their food. Soiling of nets and changes in the condition of the fishing areas have a detrimental effect on fisheries. The changes that take place in the fish stocks are affected by the nature of the water system, the size of the peat mining areas and their location within the catchment area, as well as the quantity and timing of load coming from the peat mining areas. These can be influenced through technical water protection measures

  14. Production economic models of fisheries

    DEFF Research Database (Denmark)

    Andersen, Jesper Levring

    fishermen’s behaviour are analysed. In Paper 2, technical efficiency and reasons for inefficiency are estimated using the Stochastic Production Frontier Approach. The results suggest that the level of technical efficiency is not influenced by the choice of revenue or weight as the output measure. Also, it...... considers how to include fish stocks in efficiency analyses. The biological developments are important in relation to fisheries, because fish stocks are one of the primary components in the production process. It is worthwhile to evaluate whether different methods of including fish stocks give rise to...... different conclusions. Three methods are investigated as possible ways to include fish stocks. The first method is based on catch data, while the two other methods are based on independent stock measures. It is shown that estimations based on the former give different results from the ones based on the...

  15. Rapid Flood Evaluation Systems in Taiwan Metropolitan Areas

    Directory of Open Access Journals (Sweden)

    Wen-Dar Guo

    2011-12-01

    Full Text Available Hydrological issues in metropolises in Taiwan have become increasingly important because the storm water sewer systems of metropolises are frequently unable to meet the requirements of the existing and future metropolitan development. Typhoons or torrential rains that cause rainfall intensities that exceed the designed capacity of storm water sewers can result in serious flooding. The losses caused by flooding can be reduced if the areas at risk of flooding can be predicted and warnings can be issued to prompt disaster prevention and allow response units and residents to prepare before disasters occur. The primary purpose of this study is to integrate the quantitative precipitation forecasting technologies [1, 2] developed by the Taiwan Typhoon and Flood Research Institute to establish a rapid, stable, real-time, and automatic metropolitan area flood estimation system for predictive flooding analysis. The objects of this study are metropolitan areas in Taiwan with storm water sewer systems. The standard capacities of storm water sewer systems throughout Taiwan and the geographic information system (GIS shape files are collected and compiled. Additionally, the potential flooding areas are divided into four levels (high, medium, low, and no flooding and are compared with the rainfall warning values of the Water Resources Agency. The study combines the results of quantitative precipitation forecasts, establishes an information database (MySQL, processes Google Earth KML files, and designs a WEB GIS display interface to construct a system for estimating the flooding possibility (probability in metropolitan areas during typhoons or torrential rains. This study subsequently employs the event of Typhoon Kalmaegi for flooding estimation and display; the estimation results are consistent with the flooding survey data, indicating that the estimations made by the flooding estimation system are correct.

  16. Endangered species: where leatherback turtles meet fisheries.

    OpenAIRE

    Ferraroli, S.; Georges, J.-Y.; Gaspar, P.; Le Maho, Y.

    2004-01-01

    The dramatic worldwide decline in populations of the leatherback turtle (Dermochelys coriacea) is largely due to the high mortality associated with their interaction with fisheries, so a reduction of this overlap is critical to their survival. The discovery of narrow migration corridors used by the leatherbacks in the Pacific Ocean raised the possibility of protecting the turtles by restricting fishing in these key areas. Here we use satellite tracking to show that there is no equivalent of t...

  17. On China's lake fisheries development

    OpenAIRE

    Wu, W.; Yang, N.; Jin, L.

    1991-01-01

    An account is given of the current situation regarding the lake fisheries and fish culture practices in China. The modern lake fisheries take advantage of the 3-D spaces of lakes to fully develop the resources. Currently, the fisheries concentrate on the following 3 aspects: bringing the water body into full play; various types of aquaculture enclosures; and selective measures in resources protection, stocking and aquaculture.

  18. Fishery Economics and Game Theory

    OpenAIRE

    Grønbæk, Lone

    2000-01-01

    Game theory is an analytical tool for modeling strategic interaction between agents. Strategic interaction in fishery is interpreted as the harvest by one agent highly affects other agents’ decision. This paper is a commented literature study on the fishery economics and game theory. It tends to describe how fishery models using game theory are build up. These models consist of an underlying biological models and the game-theoretical computational concepts. The paper then describes different ...

  19. The Lake Albert light fishery

    OpenAIRE

    2009-01-01

    Fishing using light to attract fish (The light fishery) was introduced on Lake AIbert from Lake Victoria where it is used to catch mukene Rastrineobola argentea. The light fishery on Lake Albert targets ragoge brycinus nurse and mukene/muziri (Neobola bredoi), These species species now contribute to more than 50% of the catches from this lake. Ragoge and muziri were until the early 1990's not important in the commercial fishery but only served as food to the large predatory fis...

  20. Evaluation of development of social capital in rural areas

    Directory of Open Access Journals (Sweden)

    Anna Michalska

    2012-09-01

    Full Text Available The aim of this work is to present the results of the research related to development of social capital in rural areas. Analysis of the obtained data indicated the reasons for participation in programmes of unemployed activation, the types of chosen forms of activation, the level of satisfaction from participation in the selected forms and finding work as a result of the activation of unemployed respondents.

  1. EVALUATION OF NOISE POLLUTION RESIDENTIAL AREAS IN SARANSK

    Directory of Open Access Journals (Sweden)

    Aleksandr N. Skvortsov

    2016-06-01

    Full Text Available Research of influence of adverse factors of the environment of life on physical development and population health is one of actual problems of modern ecology. Noise is one of significant factors of negative influence to the man and to environment. That long-term exposure to noise leads to an increase in slow-wave activity, as well as changes in visual and auditory cortical response, with an increase in latency and a decrease in the amplitude values of the main peaks, indicating that the stress response of animals to the stimulus. Additionally, chronic exposure leads to noise reduction in general motor activity, increased anxiety, reduced emotional activity animals. Pathological examination revealed a violation of the vascular nature when exposed to noise for 15 days, longer duration of action of factor causes irreversible changes in the nervous tissue in the form of reduction in the total number of neurons per unit area, the presence of glial scarring in the area of 2 layers of the cerebral cortex. If the noise energies level from the object in a residential area exceeds the permissible levels (RC, theysound events. This article discusses issues affecting one of the most urgent problems of the modern world, namely the contamination of residential areas by road noise. The estimation of the acoustic pollution of the urban environment from the effects of road traffic flows. Describes the transport, travel, architectural and planning factors acoustic urban pollution. The existing methodology for assessing the sound pressure generated by the flow of vehicles. Suggestions for environmental reconstruction project solutions highways based on a combination of various protective factors.

  2. A method for evaluating transport energy consumption in suburban areas

    OpenAIRE

    Marique, Anne-Françoise; Reiter, Sigrid

    2012-01-01

    Urban sprawl is a major issue for sustainable development. It represents a significant contribution to energy consumption of a territory especially due to transportation requirements. However, transport energy consumption is rarely taken into account when the sustainability of suburban structures is studied. In this context, the paper presents a method to estimate transport energy consumption in residential suburban areas. The study aimed, on this basis, at highlighting the most efficient str...

  3. Preliminary evaluation of wind energy potential: Cook Inlet area, Alaska

    Energy Technology Data Exchange (ETDEWEB)

    Hiester, T.R.

    1980-06-01

    This report summarizes work on a project performed under contract to the Alaska Power Administration (APA). The objective of this research was to make a preliminary assessment of the wind energy potential for interconnection with the Cook Inlet area electric power transmission and distribution systems, to identify the most likely candidate regions (25 to 100 square miles each) for energy potential, and to recommend a monitoring program sufficient to quantify the potential.

  4. Fisheries management: what chance on coral reefs?

    OpenAIRE

    Russ, G R

    1996-01-01

    Failures of fishery management to control fishing effort globally and how this affects the coral reef fisheries are discussed. The use of marine reserves in coral reef fisheries management is also emphasized.

  5. Evaluation of Nitrogen Oxides Pollution in Takamatsu and Utazu Area in Kagawa Prefecture, Japan

    OpenAIRE

    Nobuyuki Miyatake; Fumiyuki Asakawa; Sakano Suna; Noriko Sakano; Shoko Murakami

    2011-01-01

    We evaluate nitrogen oxides pollution in Takamatsu and Utazu area in Kagawa prefecture, Japan. Annually observations for nitrogen oxides (nitrogen dioxide; NO2, nitric oxide; NO) (1990-2007) were obtained from data base of Kagawa prefecture, Japan. Changes in NO2 and NO in Takamatsu and Utazu area were evaluated and compared. In 2007, NO2, NO and NO2 + NO (ppm) in Takamatsu area were higher than those in Utazu area. However, NO2 /NO + NO2 in Takamatsu area was lower than that in Utazu area. F...

  6. Discussion on the Index System of Intensive Land Use Evaluation in Development Area

    Institute of Scientific and Technical Information of China (English)

    2011-01-01

    The establishment of evaluation index system is the key to the evaluation of intensive land use.On the basis of expounding connotation,characteristics and the principle of establishing evaluation index system,and as for the problems existing in Evaluation Regulation(Trial)of Intensive Land Use in Development Area,regarding the evaluation index system of intensive land use in the development area,in the light of the connotation of intensive land use in development area,coupled with the practical situation of the land use in China’s development area,after referring to the research achievements of domestic and abroad scholars,some suggestions are put forward in order to improve and perfect the evaluation index system of intensive land us in development area.

  7. A method for evaluating transport energy consumption in suburban areas

    International Nuclear Information System (INIS)

    Urban sprawl is a major issue for sustainable development. It represents a significant contribution to energy consumption of a territory especially due to transportation requirements. However, transport energy consumption is rarely taken into account when the sustainability of suburban structures is studied. In this context, the paper presents a method to estimate transport energy consumption in residential suburban areas. The study aimed, on this basis, at highlighting the most efficient strategies needed to promote awareness and to give practical hints on how to reduce transport energy consumption linked to urban sprawl in existing and future suburban neighborhoods. The method uses data collected by using empirical surveys and GIS. An application of this method is presented concerning the comparison of four suburban districts located in Belgium to demonstrate the advantages of the approach. The influence of several parameters, such as distance to work places and services, use of public transport and performance of the vehicles, are then discussed to allow a range of different development situations to be explored. The results of the case studies highlight that traveled distances, and thus a good mix between activities at the living area scale, are of primordial importance for the energy performance, whereas means of transport used is only of little impact. Improving the performance of the vehicles and favoring home-work give also significant energy savings. The method can be used when planning new areas or retrofitting existing ones, as well as promoting more sustainable lifestyles regarding transport habits. - Highlights: ► The method allows to assess transport energy consumption in suburban areas and highlight the best strategies to reduce it. ► Home-to-work travels represent the most important part of calculated transport energy consumption. ► Energy savings can be achieved by reducing distances to travel through a good mix between activities at the

  8. A method for evaluating transport energy consumption in suburban areas

    Energy Technology Data Exchange (ETDEWEB)

    Marique, Anne-Francoise, E-mail: afmarique@ulg.ac.be; Reiter, Sigrid, E-mail: Sigrid.Reiter@ulg.ac.be

    2012-02-15

    Urban sprawl is a major issue for sustainable development. It represents a significant contribution to energy consumption of a territory especially due to transportation requirements. However, transport energy consumption is rarely taken into account when the sustainability of suburban structures is studied. In this context, the paper presents a method to estimate transport energy consumption in residential suburban areas. The study aimed, on this basis, at highlighting the most efficient strategies needed to promote awareness and to give practical hints on how to reduce transport energy consumption linked to urban sprawl in existing and future suburban neighborhoods. The method uses data collected by using empirical surveys and GIS. An application of this method is presented concerning the comparison of four suburban districts located in Belgium to demonstrate the advantages of the approach. The influence of several parameters, such as distance to work places and services, use of public transport and performance of the vehicles, are then discussed to allow a range of different development situations to be explored. The results of the case studies highlight that traveled distances, and thus a good mix between activities at the living area scale, are of primordial importance for the energy performance, whereas means of transport used is only of little impact. Improving the performance of the vehicles and favoring home-work give also significant energy savings. The method can be used when planning new areas or retrofitting existing ones, as well as promoting more sustainable lifestyles regarding transport habits. - Highlights: Black-Right-Pointing-Pointer The method allows to assess transport energy consumption in suburban areas and highlight the best strategies to reduce it. Black-Right-Pointing-Pointer Home-to-work travels represent the most important part of calculated transport energy consumption. Black-Right-Pointing-Pointer Energy savings can be achieved by

  9. River Ouse: fisheries drought report 1996

    OpenAIRE

    Frear, P.A.

    1997-01-01

    The basis for undertaking this study was to examine factors and potential impacts affecting fish and fishing in relation to low flow drought conditions and what other impacts may arise as a result of further reduced flows resulting from abstraction. The study formed the basis of a three year project to concentrate on effects relating to potable water abstractions at Moor Monkton by YWS. To fully evaluate the possible effects on fisheries the study set out to encompass fish population surv...

  10. Spatio-temporal declines in Philippine fisheries and its implications to coastal municipal fishers’ catch and income

    Directory of Open Access Journals (Sweden)

    Jonathan A Anticamara

    2016-03-01

    Full Text Available The problem of overexploitation in global fisheries is well-recognized. However, published assessment of fisheries spatio-temporal trends at the national scale is lacking for many high biodiversity developing countries, which is problematic since fisheries management is often implemented at the local or national levels. Here, we present the long-term spatio-temporal trends of Philippine fisheries production based on the landed national fish catch data (1980-2012 and fishers’ interviews. We found that the total Philippine fish catch volume (Metric Tons MT of most capture fisheries throughout the country has either stagnated or declined over the last three decades. The decline is even more prominent when evaluating fisheries trends at the provincial level, suggesting spatial serial depletion of the country’s fisheries. In contrast, the total Philippine fish catch value (US Dollars US$ or Philippine Pesos PHP has continued to increase over time, despite the declining fish catch volume. However, local municipal fishers are experiencing both low fish catch and income, contributing to observable poverty in many coastal communities in the Philippines. The various stakeholders of Philippine fisheries need to recognize the depleted state of Philippine fisheries, and learn from various experiences of collapsed and recovered fisheries from around the world, in order to recover the Philippines’ capture fisheries. Lessons from the literature on collapsed fisheries offer the following options for recovery: (1 regulate or reduce fisheries exploitation and other human activities impacting the fisheries to allow fisheries to rebuild or recover, (2 enforce effective networks of marine reserves, (3 engage fishers, consumers, and other stakeholders in fisheries management, (4 improve fisheries science, monitoring, and management capacities, and (5 provide alternative livelihood, skills, and improved education to fishers and their families.

  11. Evaluation of new large area PMT with high quantum efficiency

    OpenAIRE

    Lei, Xiang-Cui; Heng, Yue-Kun; Qian, Sen; Xia, Jing-Kai; Liu, Shu-Lin; Wu, Zhi; Yan, Bao-Jun; Xu, Mei-Hang; Wang, Zheng; Li, Xiao-Nan; Ruan, Xiang-Dong; Wang, Xiao-Zhuang; Yang, Yu-Zhen; WANG, WEN-WEN; Fang, Can

    2015-01-01

    The neutrino detector of the Jiangmen Underground Neutrino Observatory (JUNO) is designed to use 20 kilotons of liquid scintillator and approximately 16,000 20-inch photomultipliers (PMTs).One of the options is to use the 20-inch R12860 PMT with high quantum efficiency which has recently been developed by Hamamatsu Photonics. The performance of the newly developed PMT preproduction samples is evaluated. The results show that its quantum efficiency is $30\\%$ at $400 nm$. Its Peak/Valley (P/V) ...

  12. Evaluation of sludge management alternatives in Istanbul metropolitan area.

    Science.gov (United States)

    Cakmakci, M; Erdim, E; Kinaci, C; Akca, L

    2005-01-01

    The main concern of this paper was to predict the sludge quantities generated from 18 wastewater treatment plants, which were stated to be established in the "Istanbul Water Supply, Sewerage and Drainage, Sewage Treatment and Disposal Master Plan", 10 of which are in operation at present. Besides this, obtaining the required data to compare various treatment schemes was another goal of the study. Especially, the estimation of the sludge quantity in the case of enhanced primary sedimentation was of importance. Wastewater sludge management strategies were discussed in order to develop suggestions for Istanbul Metropolitan city. Within this context, the wastewater treatment facilities, mentioned in the Master Plan that had been completed by 2000, were evaluated in terms of sludge production rates, locations and technical and management aspects. Disposal alternatives of the wastewater treatment sludge were also evaluated in this study. Using of the dewatered sludge as a landfill cover material seems the best alternative usage. Up to the year of 2040, the requirement of cover material for landfills in Istanbul will be met by the dewatered sludge originated from wastewater treatment plants in the region. PMID:16114625

  13. Optical Distortion Evaluation in Large Area Windows using Interferometry

    Science.gov (United States)

    Youngquist, Robert C.; Skow, Miles; Nurge, Mark A.

    2015-01-01

    It is important that imagery seen through large area windows, such as those used on space vehicles, not be substantially distorted. Many approaches are described in the literature for measuring the distortion of an optical window, but most suffer from either poor resolution or processing difficulties. In this paper a new definition of distortion is presented, allowing accurate measurement using an optical interferometer. This new definition is shown to be equivalent to the definitions provided by the military and the standards organizations. In order to determine the advantages and disadvantages of this new approach the distortion of an acrylic window is measured using three different methods; image comparison, Moiré interferometry, and phase-shifting interferometry.

  14. Causes and consequences of fleet diversity in fisheries: The case of the Norwegian Barents Sea cod fishery

    Directory of Open Access Journals (Sweden)

    Arne Eide

    2016-05-01

    Full Text Available Abstract Fisheries operate under fluctuating environmental conditions, targeting fish stocks that appear in varying densities in different areas, often with abrupt and unexpected local changes. Physical conditions, markets and management regulations constrain vessels in different and varying ways. These factors all contribute to forming the fleet diversity we find in most fisheries. Here, a simulation model of the Northeast Arctic cod fishery is used in order to investigate how this diversity is formed and maintained, assuming rational economic behaviour under varying combined constraints. The study also focuses on how the ability of vessels to find fish influences fleet diversity, profitability, stock development and seasonal profiles of the fishery. Results indicate that an increased ability to target the most profitable fishing grounds may influence fleet diversity positively or negatively, depending on overall exploitation level. High exploitation rates also increase the temporal fluctuations in fleet diversity and profits, which are amplified as the fish-finding ability increases.

  15. The economic and financial performance of Bahrain's Fisheries Sector

    International Nuclear Information System (INIS)

    This work is based on an extensive socio-economic survey conducted at all Bahrain landing sites in the period July-November, 2002. Based on boat size and the type of fishing gear used, eight fisheries sectors were determined, these included small boats using wire traps, shrimp trawls, gillnets, hooks and lines and barrier traps. It also included large boats using wire traps, shrimp trawls and gillnets. The economic and financial performances of these sectors were evaluated. The ratio of net catch flow to total earnings was used to measure the economic performance, while the return over investment was used to measure the financial performance. Higher economic returns (except for gillnet and shrimp trawl fisheries) were found in the case of small boats where smaller investments are found. This indicated that an over-fishing condition exists in Bahrain's fisheries, which is clearly found in the case of the shrimp trawl fishery. (author)

  16. Modelling the economic consequences of Marine Protected Areas using the BEMCOM model

    DEFF Research Database (Denmark)

    Hoff, Ayoe; Andersen, Jesper Levring; Christensen, A.; Mosegaard, H.

    2013-01-01

    This paper introduces and describes in detail the bioeconomic optimization model BEMCOM (BioEconomic Model to evaluate the COnsequences of Marine protected areas) that has been developed to assess the economic effects of introducing Marine Protected Areas (MPA) for fisheries. BEMCOM answers the...

  17. Supply regimes in fisheries

    DEFF Research Database (Denmark)

    Nielsen, Max

    2006-01-01

    -Holt based bio-economic supply model with mesh sizes is developed. It is found that in the presence of realistic management schemes, the supply curves are close to vertical in the relevant range. Also, the supply curve under open access with mesh size limitations is almost vertical in the relevant range......, owing to constant recruitment. The implications are that the effects on supply following from e.g. trade liberalisation and reductions of subsidies are small in several and probably most fisheries worldwide. Keywords: backward-bending supply, regulated open access, regulated restricted access, mesh size...

  18. Indigenous community-based fisheries in Australia.

    Science.gov (United States)

    Carter, Jennifer; Hill, Greg

    2007-12-01

    The commercial sea cucumber species known as Sandfish (Holothuria scabra) occurs intertidally and subtidally in the Northern Territory of Australia, on or adjacent to Aboriginal land. A 4-yr program of community-based fisheries research with Aboriginal Australians was implemented to assess the viability of indigenous Australians' involvement in the wild-stock fishery. The research involved extensive and intensive indigenous participation, unusual in Australian biophysical sciences research, during field survey and habitat mapping, complemented by commercial catch data modelling and discussion of its implications. Field surveys produced Sandfish distribution and site-specific density, and revealed some areas that were not commercially fished. Catch data modelling results suggested that no additional effort could be sustained, however commercial fishers increased their effort, expanding their operations into the newly mapped areas. These actions effectively precluded indigenous peoples' aspirations of entry into the commercial fishery. The efficacy and outcomes of participatory program design with indigenous Australians need critique in the absence of the political will and statutory backing to provide equitable access to resources. PMID:17175093

  19. Demand analysis for Nigerian fisheries

    OpenAIRE

    Okpanefe, M.O.

    1983-01-01

    This paper reviews available past fisheries statistics data and examines the basis of derivation of the estimates and concludes that much needs to be done to establish reliable fisheries data based on well defined methodology. Subsequently, fish consumption data for the ten-year-period 1971-1979 were related to the yearly population that consumes the fish

  20. Fisheries Information Network in Indonesia.

    Science.gov (United States)

    Balachandran, Sarojini

    During the early 1980s the Indonesian government made a policy decision to develop fisheries as an important sector of the national economy. In doing so, it recognized the need for the collection and dissemination of fisheries research information not only for the scientists themselves, but also for the ultimate transfer of technology through…

  1. Wireless Body Area Network (WBAN) design techniques and performance evaluation.

    Science.gov (United States)

    Khan, Jamil Yusuf; Yuce, Mehmet R; Bulger, Garrick; Harding, Benjamin

    2012-06-01

    In recent years interest in the application of Wireless Body Area Network (WBAN) for patient monitoring applications has grown significantly. A WBAN can be used to develop patient monitoring systems which offer flexibility to medical staff and mobility to patients. Patients monitoring could involve a range of activities including data collection from various body sensors for storage and diagnosis, transmitting data to remote medical databases, and controlling medical appliances, etc. Also, WBANs could operate in an interconnected mode to enable remote patient monitoring using telehealth/e-health applications. A WBAN can also be used to monitor athletes' performance and assist them in training activities. For such applications it is very important that a WBAN collects and transmits data reliably, and in a timely manner to a monitoring entity. In order to address these issues, this paper presents WBAN design techniques for medical applications. We examine the WBAN design issues with particular emphasis on the design of MAC protocols and power consumption profiles of WBAN. Some simulation results are presented to further illustrate the performances of various WBAN design techniques. PMID:20953680

  2. Preliminary Criticality Safety Evaluation for In Situ Grouting in the Subsurface Disposal Area

    Energy Technology Data Exchange (ETDEWEB)

    Slate, L.J.; Taylor, J.T.

    2000-08-31

    A preliminary criticality safety evaluation is presented for in situ grouting in the Subsurface Disposal Area (SDA) at the Idaho National Engineering Laboratory. The grouting materials evaluated are cement and paraffin. The evaluation determines physical and administrative controls necessary to preclude criticality and identifies additional information required for a final criticality safety evaluation. The evaluation shows that there are no criticality concerns with cementitious grout but a neutron poison such as boron would be required for the use of the paraffin matrix.

  3. Preliminary Criticality Safety Evaluation for In Situ Grouting in the Subsurface Disposal Area

    Energy Technology Data Exchange (ETDEWEB)

    Slate, Lawrence J; Taylor, Joseph Todd

    2000-08-01

    A preliminary criticality safety evaluation is presented for in situ grouting in the Subsurface Disposal Area (SDA) at the Idaho National Engineering Laboratory. The grouting materials evaluated are cement and paraffin. The evaluation determines physical and administrative controls necessary to preclude criticality and identifies additional information required for a final criticality safety evaluation. The evaluation shows that there are no criticality concerns with cementitious grout but a neutron poison such as boron would be required for the use of the paraffin matrix.

  4. Preliminary Criticality Safety Evaluation for In Situ Grouting in the Subsurface Disposal Area

    International Nuclear Information System (INIS)

    A preliminary criticality safety evaluation is presented for in situ grouting in the Subsurface Disposal Area (SDA) at the Idaho National Engineering Laboratory. The grouting materials evaluated are cement and paraffin. The evaluation determines physical and administrative controls necessary to preclude criticality and identifies additional information required for a final criticality safety evaluation. The evaluation shows that there are no criticality concerns with cementitious grout but a neutron poison such as boron would be required for the use of the paraffin matrix

  5. Evaluation of new large area PMT with high quantum efficiency

    Science.gov (United States)

    Xiang-Cui, Lei; Yue-Kun, Heng; Sen, Qian; Jing-Kai, Xia; Shu-Lin, Liu; Zhi, Wu; Bao-Jun, Yan; Mei-Hang, Xu; Zheng, Wang; Xiao-Nan, Li; Xiang-Dong, Ruan; Xiao-Zhuang, Wang; Yu-Zhen, Yang; Wen-Wen, Wang; Can, Fang; Feng-Jiao, Luo; Jing-Jing, Liang; Lu-Ping, Yang; Biao, Yang

    2016-02-01

    The neutrino detector of the Jiangmen Underground Neutrino Observatory (JUNO) is designed to use 20 kilotons of liquid scintillator and approximately 16 000 20 inch photomultipliers (PMTs). One of the options is to use the 20 inch R12860 PMT with high quantum efficiency which has recently been developed by Hamamatsu Photonics. The performance of the newly developed PMT preproduction samples is evaluated. The results show that its quantum efficiency is 30% at 400 nm. Its Peak/Valley (P/V) ratio for the single photoelectron is 4.75 and the dark count rate is 27 kHz at the threshold of 3 mV while the gain is at 1 × 107. The transit time spread of a single photoelectron is 2.86 ns. Generally the performances of this new 20 inch PMT are improved over the old one of R3600. Supported by Strategic Priority Research Program of Chinese Academy of Sciences (X-DA10010200), Key Deployment Project of Chinese Academy of Sciences and CAS Center for Excellence in Particle Physics (CCEPP)

  6. Rapid Fishery Assessment by Market Survey (RFAMS--an improved rapid-assessment approach to characterising fish landings in developing countries.

    Directory of Open Access Journals (Sweden)

    William T White

    Full Text Available The complex multi-gear, multi-species tropical fisheries in developing countries are poorly understood and characterising the landings from these fisheries is often impossible using conventional approaches. A rapid assessment method for characterising landings at fish markets, using an index of abundance and estimated weight within taxonomic groups, is described. This approach was developed for contexts where there are no detailed data collection protocols, and where consistent data collection across a wide range of fisheries types and geographic areas is required, regardless of the size of the site and scale of the landings. This methodology, which was demonstrated at seven fish landing sites/fish markets in southern Indonesia between July 2008 and January 2011, provides a rapid assessment of the abundance and diversity in the wild catch over a wide variety of taxonomic groups. The approach has wider application for species-rich fisheries in developing countries where there is an urgent need for better data collection protocols, monitoring future changes in market demographics, and evaluating health of fisheries.

  7. Rapid Fishery Assessment by Market Survey (RFAMS) – An Improved Rapid-Assessment Approach to Characterising Fish Landings in Developing Countries

    Science.gov (United States)

    White, William T.; Last, Peter R.; Dharmadi; Faizah, Ria; Chodrijah, Umi; Buckworth, Rik C.; Dichmont, Catherine M.

    2014-01-01

    The complex multi-gear, multi-species tropical fisheries in developing countries are poorly understood and characterising the landings from these fisheries is often impossible using conventional approaches. A rapid assessment method for characterising landings at fish markets, using an index of abundance and estimated weight within taxonomic groups, is described. This approach was developed for contexts where there are no detailed data collection protocols, and where consistent data collection across a wide range of fisheries types and geographic areas is required, regardless of the size of the site and scale of the landings. This methodology, which was demonstrated at seven fish landing sites/fish markets in southern Indonesia between July 2008 and January 2011, provides a rapid assessment of the abundance and diversity in the wild catch over a wide variety of taxonomic groups. The approach has wider application for species-rich fisheries in developing countries where there is an urgent need for better data collection protocols, monitoring future changes in market demographics, and evaluating health of fisheries. PMID:25275308

  8. 78 FR 54547 - Fisheries Off West Coast States; Highly Migratory Fisheries; California Drift Gillnet Fishery...

    Science.gov (United States)

    2013-09-04

    ... following gear type declaration codes are available for the thresher shark/swordfish DGN fishery: Open... emergency rules (62 FR 44421; August 21, 1997) specify the following three criteria that define what an... Fishery; Sperm Whale Interaction Restriction; Final Rule and Notice #0;#0;Federal Register / Vol. 78 ,...

  9. Competition for marine space: modelling the Baltic Sea fisheries and effort displacement under spatial restrictions

    DEFF Research Database (Denmark)

    Bastardie, Francois; Nielsen, J. Rasmus; Eigaard, Ole Ritzau;

    2015-01-01

    Maritime spatial planning (MSP) and fishery management may generate extra costs for fisheries by constraining fishers activity with conservation areas and new utilizations of the sea. Moreenergy-efficient fisheries are also likely to alter existing fishing patterns, which already vary from fishery...... to fishery and from vessel to vessel. The impact assessment of new spatial plans involving fisheries should be based on quantitative bioeconomic analyses that take into account individual vessel decisions, and trade-offs in cross-sector conflicting interests.Weuse a vessel-oriented decision......-support tool (the DISPLACE model) to combine stochastic variations in spatial fishing activities with harvested resource dynamics in scenario projections. The assessment computes economic and stock status indicators by modelling the activity of Danish, Swedish, and German vessels (.12 m) in the international...

  10. PRECISION FARMING TECHNOLOGIES FOR WEED CONTROL IN THE MISSISSIPPI DELTA MANAGEMENT SYSTEMS EVALUATION AREA

    Science.gov (United States)

    Studies were conducted to evaluate two precision farming technologies for weed control in the Mississippi Delta Management systems Evaluation Area (MDMSEA). A sensor-controlled hooded sprayer that utilized spectral reflectance type sensors to detect and spray only where weeds were present was evalu...

  11. Social and Ecological Dynamics of Small-Scale Fisheries

    Science.gov (United States)

    Stevens, K.; Kramer, D.; Frank, K.

    2012-12-01

    Globalization's reach is rapidly extending to touch some of the most remote communities of the world, but we have yet to understand its scale and impact. On Nicaragua's previously remote Miskitu Coast, the introduction of new markets and global demand for seafood has resulted in changes in fishermen's harvest behavior manifested within the local fishery. Small-scale fisheries are a significant component in sustaining global fish trade, ensuring food security, and alleviating poverty, but because the fishermen are disperse, numerous and located in remote areas, the social and ecological dynamics of the system are poorly understood. Previous work has indicated a decline in fish abundance as a result of connection to markets, yet fishermen's response to this decline and the resulting shift in harvest strategy requires further examination. I identify the ecological and social factors that explain changes in fishermen behavior and use an innovative application of social network analysis to understand these changes. I also use interviews with fishermen and fishery-dependent surveys to measure catch and release behavior and seasonal gear use. Results demonstrate multiple cliques within a community that mitigate the response of fishermen to changes in the fishery. This research applies techniques in social science to address challenges in sustainable management of fisheries. As fisheries managers consider implementing new regulations, such as seasonal restrictions on gear, it is essential to understand not just how this might impact fish abundance, but how and why human systems respond as they do.

  12. The Path towards Endangered Species: Prehistoric Fisheries in Southeastern Brazil.

    Directory of Open Access Journals (Sweden)

    Mariana Samôr Lopes

    Full Text Available Brazilian shellmounds are archaeological sites with a high concentration of marine faunal remains. There are more than 2000 sites along the coast of Brazil that range in age from 8,720 to 985 cal BP. Here, we studied the ichthyoarchaeological remains (i.e., cranial/postcranial bones, otoliths, and teeth, among others at 13 shellmounds on the southern coast of the state of Rio de Janeiro, which are located in coastal landscapes, including a sandy plain with coastal lagoons, rocky islands, islets and rocky bays. We identified patterns of similarity between shellmounds based on fish diversity, the ages of the assemblages, littoral geomorphology and prehistoric fisheries. Our new radiocarbon dating, based on otolith samples, was used for fishery characterization over time. A taxonomical study of the ichthyoarchaeological remains includes a diversity of 97 marine species, representing 37% of all modern species (i.e., 265 spp. that have been documented along the coast of Rio de Janeiro state. This high fish diversity recovered from the shellmounds is clear evidence of well-developed prehistoric fishery activity that targeted sharks, rays and finfishes in a productive area influenced by coastal marine upwelling. The presence of adult and neonate shark, especially oceanic species, is here interpreted as evidence of prehistoric fisheries capacity for exploitation and possibly overexploitation in nursery areas. Various tools and strategies were used to capture finfish in seasonal fisheries, over rocky reef bottoms and in sandy littoral environments. Massive catches of whitemouth croaker, main target dermersal species of South Atlantic coast, show evidence of a reduction in body size of approximately 28% compared with modern fisheries. Fishery activity involving vulnerable species, especially in nursery areas, could mark the beginning of fish depletion along the southeastern Brazilian coast and the collapse of natural fish populations.

  13. The Path towards Endangered Species: Prehistoric Fisheries in Southeastern Brazil.

    Science.gov (United States)

    Lopes, Mariana Samôr; Bertucci, Thayse Cristina Pereira; Rapagnã, Luciano; Tubino, Rafael de Almeida; Monteiro-Neto, Cassiano; Tomas, Acácio Ribeiro Gomes; Tenório, Maria Cristina; Lima, Tânia; Souza, Rosa; Carrillo-Briceño, Jorge Domingo; Haimovici, Manuel; Macario, Kita; Carvalho, Carla; Aguilera Socorro, Orangel

    2016-01-01

    Brazilian shellmounds are archaeological sites with a high concentration of marine faunal remains. There are more than 2000 sites along the coast of Brazil that range in age from 8,720 to 985 cal BP. Here, we studied the ichthyoarchaeological remains (i.e., cranial/postcranial bones, otoliths, and teeth, among others) at 13 shellmounds on the southern coast of the state of Rio de Janeiro, which are located in coastal landscapes, including a sandy plain with coastal lagoons, rocky islands, islets and rocky bays. We identified patterns of similarity between shellmounds based on fish diversity, the ages of the assemblages, littoral geomorphology and prehistoric fisheries. Our new radiocarbon dating, based on otolith samples, was used for fishery characterization over time. A taxonomical study of the ichthyoarchaeological remains includes a diversity of 97 marine species, representing 37% of all modern species (i.e., 265 spp.) that have been documented along the coast of Rio de Janeiro state. This high fish diversity recovered from the shellmounds is clear evidence of well-developed prehistoric fishery activity that targeted sharks, rays and finfishes in a productive area influenced by coastal marine upwelling. The presence of adult and neonate shark, especially oceanic species, is here interpreted as evidence of prehistoric fisheries capacity for exploitation and possibly overexploitation in nursery areas. Various tools and strategies were used to capture finfish in seasonal fisheries, over rocky reef bottoms and in sandy littoral environments. Massive catches of whitemouth croaker, main target dermersal species of South Atlantic coast, show evidence of a reduction in body size of approximately 28% compared with modern fisheries. Fishery activity involving vulnerable species, especially in nursery areas, could mark the beginning of fish depletion along the southeastern Brazilian coast and the collapse of natural fish populations. PMID:27355355

  14. Reproductive Ecology of Yakima River Hatchery and Wild Spring Chinook; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2004-2005 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Knudsen, Curtis M. (Oncorh Consulting, Olympia, WA); Schroder, Steven L. (Washington Department of Fish and Wildlife, Olympia, WA); Johnston, Mark V. (yakama Nation, Toppenish, WA)

    2005-05-01

    This report is intended to satisfy two concurrent needs: (1) provide a contract deliverable from Oncorh Consulting to the Washington Department of Fish and Wildlife (WDFW), with emphasis on identification of salient results of value to ongoing Yakima/Klickitat Fisheries Project (YKFP) planning and (2) summarize results of research that have broader scientific relevance. This is the fourth in a series of reports that address reproductive ecological research and monitoring of spring chinook populations in the Yakima River basin. This annual report summarizes data collected between April 1, 2004 and March 31, 2005 and includes analyses of historical baseline data, as well. Supplementation success in the Yakima Klickitat Fishery Project's (YKFP) spring chinook (Oncorhynchus tshawytscha) program is defined as increasing natural production and harvest opportunities, while keeping adverse ecological interactions and genetic impacts within acceptable bounds (Busack et al. 1997). Within this context demographics, phenotypic traits, and reproductive ecology have significance because they directly affect natural productivity. In addition, significant changes in locally adapted traits due to hatchery influence, i.e. domestication, would likely be maladaptive resulting in reduced population productivity and fitness (Taylor 1991; Hard 1995). Thus, there is a need to study demographic and phenotypic traits in the YKFP in order to understand hatchery and wild population productivity, reproductive ecology, and the effects of domestication (Busack et al. 1997). Tracking trends in these traits over time is also a critical aspect of domestication monitoring (Busack et al. 2004) to determine whether trait changes have a genetic component and, if so, are they within acceptable limits. The first chapter of this report compares first generation hatchery and wild upper Yakima River spring chinook returns over a suite of life-history, phenotypic and demographic traits. The second

  15. Reproductive Ecology of Yakima River Hatchery and Wild Spring Chinook; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2001-2002 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Knudsen, Curtis M. (Oncorh Consulting, Olympia, WA)

    2003-05-01

    This report is intended to satisfy two concurrent needs: (1) provide a contract deliverable from Oncorh Consulting to the Washington Department of Fish and Wildlife (WDFW), with emphasis on identification of salient results of value to ongoing Yakima/Klickitat Fisheries Project (YKFP) planning, and (2) summarize results of research that have broader scientific relevance. This is the second in a series of reports that address reproductive ecological research and monitoring of spring chinook in the Yakima River basin. In addition to within-year comparisons, between-year comparisons will be made to determine if traits of the wild Naches basin control population, the naturally spawning population in the upper Yakima River and the hatchery control population are diverging over time. This annual report summarizes data collected between April 1, 2002 and March 31, 2003. In the future, these data will be compared to previous years to identify general trends and make preliminary comparisons. Supplementation success in the Yakima Klickitat Fishery Project's (YKFP) spring chinook (Oncorhynchus tshawytscha) program is defined as increasing natural production and harvest opportunities, while keeping adverse ecological interactions and genetic impacts within acceptable bounds (Busack et al. 1997). Within this context demographics, phenotypic traits, and reproductive ecology have significance because they directly affect natural productivity. In addition, significant changes in locally adapted traits due to hatchery influence, i.e. domestication, would likely be maladaptive resulting in reduced population productivity and fitness (Taylor 1991; Hard 1995). Thus, there is a need to study demographic and phenotypic traits in the YKFP in order to understand hatchery and wild population productivity, reproductive ecology, and the effects of domestication (Busack et al. 1997). Tracking trends in these traits over time is also a critical aspect of domestication monitoring (Busack

  16. 77 FR 66746 - Fisheries of the Northeastern United States; Atlantic Herring Fishery; Sub-ACL (Annual Catch...

    Science.gov (United States)

    2012-11-07

    ... research in the 2010-2012 specifications (75 FR 48874, August 12, 2010). However, due to an over-harvest in Area 1A in 2010, the FY 2012 sub-ACL in Area 1A was revised to 24,668 mt on February 24, 2012 (77 FR... Northeastern United States; Atlantic Herring Fishery; Sub-ACL (Annual Catch Limit) Harvested for...

  17. Cereal Feeding in Fishes Nutrition for Fishery in Fresh Water from Banat Region

    Directory of Open Access Journals (Sweden)

    Dumitru Mnerie

    2010-10-01

    Full Text Available Fisheries have traditionally been managed by direct restrictions, including seasonal and area closures, minimum mesh size, and access limitations. In recent years, licensing and an individual quota system were introduced as effortcontrol measures, in order to bring fishing effort more in line with the available resources. The overall responsibility for fisheries policy in Romania falls under auspices of the Ministry of Agriculture, Forests and Rural Development through its Directorate of Fisheries. The major objectives of Romanian fisheries are to bring the national fisheries legislation closer to the European Union (EU Common Fisheries Policy (CFP and to set up the administrative capacity and institutional building needed to cope with EU accession in 2007. In June 2001, Romania completed negotiations with EU in the area of fisheries, accepting the entire acquis communautaire without requesting any derogation or transition periods. The European Fisheries Fund will support Romania as a new EU Member State to develop a competitive, modern and dynamic fisheries sector, based on sustainable fishing and aquaculture activities, while also taking account of other important aspects such as environmental protection, the demands of the consumers and the food industry. The program is also expected to increase the competitiveness of the fisheries sector, encourage job creation and promote the growth of the aquaculture industry. The paper shows some aspects about Romanian fishery policy, an important opportunity for development research in fishery in fresh water from Banat region. Also, it is presents some research results about using the cereal feeding as fish’s nutrition, in special for common carp.

  18. Differential effects of a local industrial sand lance fishery on seabird breeding performance

    DEFF Research Database (Denmark)

    Frederiksen, M.; Jensen, Henrik; Daunt, F.;

    2008-01-01

    Fisheries management across the world is moving toward an ecosystem-based approach, implying that fishery effects on nontarget species should be taken into account. However, such effects are often not well understood, partly because they can be difficult to distinguish from impacts of environmental...... fluctuations. We evaluated the effects of an industrial sand lance (Ammodytes marinus) fishery off the North Sea coast of the United Kingdom, which has been opened and closed in a quasi-experimental fashion, on sand-lance-dependent breeding seabirds. Controlling for environmental variation ( sea surface...... tool for future ecosystem-based fisheries management....

  19. Reproductive Ecology of Yakima River Hatchery and Wild Spring Chinook; Yakima/Klickitat Fisheries Project Monitoring and Evaluation Report 3 of 7, 2003-2004 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Knudsen, Curtis (Oncorh Consulting, Olympia, WA)

    2004-05-01

    This is the third in a series of annual reports that address reproductive ecological research and comparisons of hatchery and wild origin spring chinook in the Yakima River basin. Data have been collected prior to supplementation to characterize the baseline reproductive ecology, demographics and phenotypic traits of the unsupplemented upper Yakima population, however this report focuses on data collected on hatchery and wild spring chinook returning in 2003; the third year of hatchery adult returns. This report is organized into three chapters, with a general introduction preceding the first chapter and summarizes data collected between April 1, 2003 and March 31, 2004 in the Yakima basin. Summaries of each of the chapters in this report are included below. A major component of determining supplementation success in the Yakima Klickitat Fishery Project's spring chinook (Oncorhynchus tshawytscha) program is an increase in natural production. Within this context, comparing upper Yakima River hatchery and wild origin fish across traits such as sex ratio, age composition, size-at-age, fecundity, run timing and gamete quality is important because these traits directly affect population productivity and individual fish fitness which determine a population's productivity.

  20. 75 FR 38458 - Atlantic Coastal Fisheries Cooperative Management Act Provisions; General Provisions for Domestic...

    Science.gov (United States)

    2010-07-02

    ... National Oceanic and Atmospheric Administration RIN 0648-XX07 Atlantic Coastal Fisheries Cooperative Management Act Provisions; General Provisions for Domestic Fisheries; Application for Exempted Fishing... traps in between Block and Hudson Canyons in Lobster Management Area 3 during the summer of 2010....

  1. Fringe benefit: Value of restoring coastal wetlands for Great Lakes fisheries

    Science.gov (United States)

    Fishery support is recognized as a valuable ecosystem service provided by Great Lakes coastal wetlands, but it is challenging to quantify because multiple species and habitats are involved. Recent studies indicate that coastal wetland area is proportional to fishery harvest among...

  2. Artisanal Fisheries Research: A Need for Globalization?

    Directory of Open Access Journals (Sweden)

    José Gilmar C Oliveira Júnior

    Full Text Available Given limited funds for research and widespread degradation of ecosystems, environmental scientists should geographically target their studies where they will be most effective. However, in academic areas such as conservation and natural resource management there is often a mismatch between the geographic foci of research effort/funding and research needs. The former frequently being focused in the developed world while the latter is greater in the biodiverse countries of the Global South. Here, we adopt a bibliometric approach to test this hypothesis using research on artisanal fisheries. Such fisheries occur throughout the world, but are especially prominent in developing countries where they are important for supporting local livelihoods, food security and poverty alleviation. Moreover, most artisanal fisheries in the Global South are unregulated and unmonitored and are in urgent need of science-based management to ensure future sustainability. Our results indicate that, as predicted, global research networks and centres of knowledge production are predominantly located in developed countries, indicating a global mismatch between research needs and capacity.

  3. Artisanal Fisheries Research: A Need for Globalization?

    Science.gov (United States)

    Oliveira Júnior, José Gilmar C; Silva, Luana P S; Malhado, Ana C M; Batista, Vandick S; Fabré, Nidia N; Ladle, Richard J

    2016-01-01

    Given limited funds for research and widespread degradation of ecosystems, environmental scientists should geographically target their studies where they will be most effective. However, in academic areas such as conservation and natural resource management there is often a mismatch between the geographic foci of research effort/funding and research needs. The former frequently being focused in the developed world while the latter is greater in the biodiverse countries of the Global South. Here, we adopt a bibliometric approach to test this hypothesis using research on artisanal fisheries. Such fisheries occur throughout the world, but are especially prominent in developing countries where they are important for supporting local livelihoods, food security and poverty alleviation. Moreover, most artisanal fisheries in the Global South are unregulated and unmonitored and are in urgent need of science-based management to ensure future sustainability. Our results indicate that, as predicted, global research networks and centres of knowledge production are predominantly located in developed countries, indicating a global mismatch between research needs and capacity. PMID:26942936

  4. INTERNET IN FISHERIES

    Directory of Open Access Journals (Sweden)

    Daniel Matulić

    2006-01-01

    Full Text Available Internet is a global communication system interconnected with computer networks and intended to exchange the information of any kind. It is frequently called »network of all the networks« because it incorporates thousands and thousands of various computer networks all around the world and in order to communicate, has the same technical standards. The Internet has become an exclusive, unique source of information forever growing population. It has also become an ideal communication channel because of its dynamics, interaction, tractability and miraculously manageable updating of the content published. Nowadays, when fisheries starts playing and important role in Croatia, many people seek professional advice and guidance via Internet in order to fulfil their demanding professional tasks.

  5. 75 FR 12462 - Fisheries of the Northeastern United States; Northeast Multispecies Fishery; Removal of Gear...

    Science.gov (United States)

    2010-03-16

    ...This action removes temporary gear restrictions in both the Eastern and Western U.S./Canada Areas for limited access Northeast (NE) multispecies vessels fishing on a NE multispecies Category A day-at-sea (DAS) for the remainder of the 2009 fishing year (FY) (i.e., through April 30, 2010). This action is authorized by the regulations implementing Amendment 13 to the NE Multispecies Fishery......

  6. L-045: EPR-First Responders: Evaluation of the risk and establishment of inner cordoned area

    International Nuclear Information System (INIS)

    This conference is about the risk evaluation knowledge by the first responders in a radiological emergency. They have to establish the inner cordoned area , identify dangerous symbols , devices, packages, radioactive source, material and equipment used

  7. 78 FR 73850 - Pacific Fishery Management Council; Public Meetings and Hearings

    Science.gov (United States)

    2013-12-09

    ...: ``Review of 2013 Ocean Salmon Fisheries, Stock Assessment and Fishery Evaluation Document for the Pacific... Technical Team (STT) will meet at the Pacific Council office in a public work session to draft ``Review of... Drive, Coos Bay, OR 97420, telephone: (541) 267-4141. March 25, 2014: Hilton Sonoma Wine Country,...

  8. Evaluation of Water Quality Conditions Near Proposed Fish Production Sites Associated with the Yakima Fisheries Project, 1991-1993 Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    Dauble, Dennis D.

    1994-05-01

    In 1991, the Pacific Northwest Laboratory (PNL) began studying water quality at several sites in the Yakima River Basin for the Bonneville Power Administration. These sites were being proposed as locations for fish culture facilities as part of the Yakima Fisheries Project (YFP). Surface water quality parameters near the proposed fish culture facilities are currently suitable for fish production. Water quality conditions in the mainstream Yakima River and its tributaries are generally excellent in the upper part of the watershed (i.e., near Cle Elum), but they are only fair to poor for the river downstream of Union Gap (river mile 107). Water quality of the Naches River near Oak Flats is also suitable for fish production. Groundwater supplies near the proposed fish production facilities typically have elevated concentrations of metals and dissolved gases. These conditions can be mitigated using best engineering practices such as precipitation and degasification. Additionally, mixing with surface water may improve these conditions. Depending on the location and depth of the well, groundwater temperatures may be warmer than optimum for acclimating and holding juvenile and adult fish. Water quality parameters measured in the Yakima River and tributaries sometimes exceed the range of values described as acceptable for culture of salmonids and for the protection of other aquatic life. However, constituent concentrations are within ranges that exist in many northwest fish hatcheries. Additionally, site-specific tests conducted by PNL (i.e., live box exposures and egg incubation studies) indicate that fish can be successfully reared in surface and well water near the proposed facility sites. Thus, there appear to be no constraints to artificial production for the YFP.

  9. Evaluation of equivalent accumulation area of internal defects based on statistical law of yield loads

    International Nuclear Information System (INIS)

    In this paper, in order to evaluate the approximate equivalent accumulation area Sdmax of initial internal defects in the dangerous cross section of structures, a series of Vickers indentations were prepared on the gage part of well polished Ti-6Al-4V specimens as emebedded defects, the indentation areas Sv were compared with Sdmax. With various Sv, approximate Gaussian distribution of the yield loads was obtained based on mathematical expectation E(Fs) and standard deviation σ(Fs), and the changing rule of E(Fs) as a function of Sv was obtained. A decrement of E(Fs) of 2.6% was obtained when Sv increased from 3654.4 μm2 to 6982.8 μm2. The approximate ratio of Sdmax to the initial sectional area So was evaluated as 3.0%. - Graphical abstract: Calculation of the equivalent accumulation area Sdmax of initial internal defects in the dangerous cross section by the comparison with indentation embedded defects. Changing trend of mathematical expectation of yield loads E(Fs) indicated that the approximate ratio of Sdmax to So (initial sectional area) of 3.0% was evaluated. - Highlights: • Evaluation the approximate equivalent accumulation area Sdmax of initial internal defects in the dangerous cross section. • A series of Vickers indentations were prepared as emebedded defects. • The ratio of Sdmax to So (initial sectional area) was approximatively evaluated. • Allowable load Fm was redefined as calculated

  10. FISHERY BIOLOGY OF PURPLEBACK FLYING SQUID STHENOTEUTHIS OUALANIENSIS IN NORTHERN SEA AREAS AROUND NANSHA ISLANDS IN SUMMER%南沙群岛北部海域鸢乌贼(Sthenoteuthisoualaniensis)夏季渔业生物学研究

    Institute of Scientific and Technical Information of China (English)

    颜云榕; 冯波; 卢伙胜; 赖金养; 杜时强

    2012-01-01

    Auto jigging (AJ) and light-attraction falling net (LAFN) were used synchronously to investigate the fishery biology of growth, reproduction, feeding habit and distribution of Purpleback flying squid, Sthenoteuthis oualaniensis in northern sea areas (12-16°N, 112-116°E) around Nansha Islands. The Purpleback flying squid mantle length (ML) from 65 to 231mm and body weight varied from 6 to 580g from the LAFN, while ML ranged from 108 to 215mm and body weight extended from 38 to 400g from the AJ. The sex ratio of the above gear samples were 32.0 and 1.4 respectively. There were two peak gonad somatic ML groups of 101 to 120ram and above 160mm. The climax spawning time was from April to July. The Purpleback flying squid mainly fed on pelagic fish such as Symbolophorus boops, Hirundichthys oxycephalus, Decapterus macarellus and Ernmelichthys struhsakeri, and preyed on Ommastrephidae cephalopods and some crustaceans. The feeding intensity increased with the growth of the Purpleback flying squid. The catch per unit effort (CPUE) of AJ and LAFN were I to 38pc/(line-h) [average 12pc/(line.h)] and 5 to 50kg/net (average 5.7kg/net), respectively This squid is extremely important in commercial exploitation and marine ecotrophic research in northern sea areas around Nansha Islands. It can be concluded that LAFN is a better survey method in squid investigation.%采用自动鱿钓(AJ)和灯光罩网(LAFN)定点采样,对南沙群岛北部海域(12—16。N,112—116°E)鸢乌贼生长、繁殖、摄食及资源分布等进行研究。结果表明:灯光罩网渔获中鸢乌贼的胴长范围为65—231mm,体质量范围为6—580g;自动鱿钓鸢乌贼胴长范围为108—215mm,体质量范围为38—400g。自动鱿钓和灯光罩网鸢乌贼雌雄性比分别为32.0和1.4。南沙鸢乌贼雌性个体出现两个性腺发育高峰期,即101-120mm与161mm以上胴长组,4—7月为繁殖高峰期。鸢乌贼以大眼标灯鱼、尖头燕鳐等

  11. 41th Plenary Meeting Report of the Scientific, Technical and Economic Committee for Fisheries (PLEN-12-03)

    DEFF Research Database (Denmark)

    Abella, J. A.; Andersen, J.; Bailey, N.;

    The Scientific, Technical and Economic Committee for Fisheries hold its 41st plenary on 5-9 November 2012 in Brussels (Belgium). The terms of reference included both issues assessments of STECF Expert Working Group reports and additional requests submitted to the STECF by the Commission. Topics d...... dealt were inter alia assessments of Mediterranean and Black Sea stocks, evaluations of fishing effort regimes, technical measures, review of scientific advice on stocks and fisheries of EU interest, fisheries management plans evaluation issues....

  12. The marine fisheries of Jamaica

    OpenAIRE

    Aiken, K.; Kong, G.A.

    2000-01-01

    The marine fisheries of Jamaica are almost entirely artisanal, with at least 15 000 fishers and an annual catch of approximately 7 000 t. A recent development is a small industrial fishery for queen conch and spiny lobster that earns significant foreign exchange for the country. The major aquatic resources are coral reef fishes, conch, lobster, small pelagics and seasonal large pelagics. The major fishing grounds are the southern island shelf and Pedro Bank, a large oceanic bank 150 km to the...

  13. Discarding in UK Commercial Fisheries

    OpenAIRE

    Condie, Harriet

    2013-01-01

    Discarding, or returning unwanted catch to the sea, is a common feature of European fisheries, and is widely acknowledged as morally wrong. It wastes food and economic resources, and has contributed to overfishing in EU stocks. However, under the current Common Fisheries Policy (CFP), catch that is below minimum landings sizes, exceeds quota, or does not match catch composition regulations must be discarded. The high profile of discarding in recent years has put pressure on the...

  14. On the sustainability of inland fisheries: Finding a future for the forgotten

    Science.gov (United States)

    Cooke, Steven J.; Allison, Edward H.; Beard, Douglas; Arlinghaus, Robert; Arthington, Angela; Bartley, Devin; Cowx, Ian G.; Fuentevilla, Carlos; Leonard, Nancy J.; Lorenzen, Kai; Lynch, Abigail; Nguyen, Vivian M.; Youn, So-Jung; Tayor, William W.; Welcomme, Robin

    2016-01-01

    At present, inland fisheries are not often a national or regional governance priority and as a result, inland capture fisheries are undervalued and largely overlooked. As such they are threatened in both developing and developed countries. Indeed, due to lack of reliable data, inland fisheries have never been part of any high profile global fisheries assessment and are notably absent from the Sustainable Development Goals. The general public and policy makers are largely ignorant of the plight of freshwater ecosystems and the fish they support, as well as the ecosystem services generated by inland fisheries. This ignorance is particularly salient given that the current emphasis on the food-water-energy nexus often fails to include the important role that inland fish and fisheries play in food security and supporting livelihoods in low-income food deficit countries. Developing countries in Africa and Asia produce about 11 million tonnes of inland fish annually, 90 % of the global total. The role of inland fisheries goes beyond just kilocalories; fish provide important micronutrients and essentially fatty acids. In some regions, inland recreational fisheries are important, generating much wealth and supporting livelihoods. The following three key recommendations are necessary for action if inland fisheries are to become a part of the food-water-energy discussion: invest in improved valuation and assessment methods, build better methods to effectively govern inland fisheries (requires capacity building and incentives), and develop approaches to managing waters across sectors and scales. Moreover, if inland fisheries are recognized as important to food security, livelihoods, and human well-being, they can be more easily incorporated in regional, national, and global policies and agreements on water issues. Through these approaches, inland fisheries can be better evaluated and be more fully recognized in broader water resource and aquatic ecosystem planning and decision

  15. Evaluating the ecotourism potentials of Naharkhoran area in Gorgan using remote sensing and geographic information system

    Science.gov (United States)

    Oladi, Jafar; Bozorgnia, Delavar

    2010-10-01

    Ecotourism may be defined as voluntary travels to intact natural areas in order to enjoy the natural attractions as well as to get familiar with the culture of local communities. The main factor contributing to inappropriate land uses and natural resource destruction is overaggregation of ecotourists in some specific natural areas such as forests and rangelands; while other parts remain unvisited due to the lack of a proper propagation about those areas. Evaluating the ecotourism potentials of each area would lead to a wider participation of local people in natural resource conservation activities. In order to properly introduce the ecotourism potential areas, at first, we carried out land preparation practices using Geographic Information System (GIS) and Remote Sensing (RS) techniques; then, the maps of height, slope and orientation were produced using the digital elevation model (DEM) of the study area. Afterwards, we overlaid these maps and the ecotourism potential areas were identified on the map. These specified areas were classified into two land uses of mass and alternative ecotourism, with three subclasses (including class1, class2 and an inappropriate class) considered for each land use. To classify the image, the training areas determined on the ground using a GPS device (Ground Positioning System) were transferred on the RS image. Subsequently, the ecotourism potential areas were determined using a hybrid method. At the final phase, these areas were compared with the areas determined on the ecotourism potential map; as a result of this comparison, the overlaid ecotourism potential areas were distinguished on the Geographic information System.

  16. [Evaluation of pressure ulcers area using the softwares Motic and AutoCAD®].

    Science.gov (United States)

    Reis, Camila Letícia Dias dos; Cavalcante, Janaína Mortosa; Rocha Júnior, Edvar Ferreira da; Neves, Rinaldo Souza; Santana, Levy Aniceto; Guadagnin, Renato da Veiga; Brasil, Lourdes Mattos

    2012-01-01

    Pressure ulcer is a lesion that affects skin layers in some regions of the body and its healing can be followed up using image processing. The analysis of pressure ulcer area is relevant to evaluate its evolution and response to therapeutic procedures. Such areas can be evaluated through contour marking with the softwares Motic and AutoCAD®. In this study 35 volunteers computed areas from two grade III pressure ulcers using these instruments. It was possible to conclude that results are clinically equivalent and so can be considered to follow up healing evolution from pressure ulcers. PMID:22911414

  17. The environment of coal mining areas and the economic evaluation of the land reclamation

    Institute of Scientific and Technical Information of China (English)

    王志宏; 肖兴田; 何志强

    2001-01-01

    The environment impact of the coal resources mining was analyzed. The method of economic evaluation for the coal mining was established to analyze land destruction. The opportunity cost method was used to quantitatively analyze and estimate the economic loss of the land destruction by coal mining. At the same time, the dump land reclamation of the Yuanbaoshan. Open Pit was taken as an example to evaluate environmental and economical benefit with the method of economic evaluation for the coal mining areas land reclamation.

  18. Comprehensive Evaluation Method of Urban Remnant Natural Area:A Case study of Shanghai, China

    Institute of Scientific and Technical Information of China (English)

    CHEN Sheng-quan; WANG Yun; GONG Bin

    2008-01-01

    Urban remnant natural area (URNA), located in the urban or suburb area, less disturbed by dwellers in the process of urbanization, is an important part of complex urban ecosystem and provides significant opportunity for urban sustainable development. Despite that there is a considerable amount of scientific researches on the urban nature in urban and suburb area, the comprehensive research of URNA is still rare. After analyzing the concept and value of URNA, this paper presented a methodology for comprehensive evaluation of URNA by adopting methods of document analysis, prior-selection process, analytic hierarchy process and vector resemblance-degree. As a result, the comprehensive evaluation index of URNA includes target level A, rule level B(ecological environment value, ecological recreation value, social culture value, scientific research value), index level C( diversity, singularity, nature, area, stability, recreation, landscape element, aesthetics, history, scientific), and index level D(20 items). Each index weight of comprehensive evaluation system of URNA of Shanghai was confirmed finally.

  19. Ground-water quality at the Management Systems Evaluation Area (MSEA) near Princeton, Minnesota, 1991

    Science.gov (United States)

    Landon, M.K.; Delin, G.N.; Lamb, J.A.; Guo, Laodong

    1993-01-01

    The northern cornbelt sand-plains Management Systems Evaluation Area (MSEA) program is a multiagency, multistate initiative to evaluate the effects of modified and prevailing fanning systems on water quality in a sand-plain area in Minnesota and at satellite areas in North and South Dakota, and Wisconsin (Delin and others, 1992). The primary objective of the northern cornbelt sand-plains MSEA is to evaluate the effects of ridge-tillage practices in a corn and soybean farming system on ground-water quality. The Minnesota MSEA program is a cooperative study primarily between the U.S. Department of Agriculture-Agricultural Research Service, the University of Minnesota Soil Science Department, and the U.S. Geological Survey. The Minnesota Pollution Control Agency and the Department of Geology and Geophysics at the University of Minnesota are also cooperating in the evaluation of ground-water quality at the MSEA.

  20. Ground-water quality at the Management Systems Evaluation Area near Princeton, Minnesota, 1991-92

    Science.gov (United States)

    Landon, M.K.; Delin, G.N.; Lamb, J.A.; Guo, Lei

    1993-01-01

    The northern cornbelt sand-plains Management Systems Evaluation Area (MSEA) program is a multiagency, multistate initiative to evaluate the effects of modified and prevailing farming systems on water quality in a sand-plain area in Minnesota and at satellite areas in North and South Dakota, and Wisconsin. The primary objective of Minnesota MSEA is to evaluate the effects of ridge-tillage practices in a corn and soybean farming system on ground-water quality. The Minnesota MSEA program is a cooperative study primarily between the U.S. Department of Agriculture Agricultural Research Service, the University of Minnesota Soil Science Department, and the U.S. Geological Survey. The Minnesota Pollution Control Agency and the Department of Geology and Geophysics at the University of Minnesota are also cooperating in the evaluation of groundwater quality at the MSEA.

  1. Evaluation of the electrical contact area in contact-mode scanning probe microscopy

    Energy Technology Data Exchange (ETDEWEB)

    Celano, Umberto, E-mail: celano@imec.be, E-mail: u.celano@gmail.com; Chintala, Ravi Chandra; Vandervorst, Wilfried [IMEC, Kapeldreef 75, B-3001 Heverlee (Leuven) (Belgium); Department of Physics and Astronomy (IKS), KU Leuven, Celestijnenlaan 200D, 3001 Leuven (Belgium); Hantschel, Thomas; Giammaria, Guido; Conard, Thierry; Bender, Hugo [IMEC, Kapeldreef 75, B-3001 Heverlee (Leuven) (Belgium)

    2015-06-07

    The tunneling current through an atomic force microscopy (AFM) tip is used to evaluate the effective electrical contact area, which exists between tip and sample in contact-AFM electrical measurements. A simple procedure for the evaluation of the effective electrical contact area is described using conductive atomic force microscopy (C-AFM) in combination with a thin dielectric. We characterize the electrical contact area for coated metal and doped-diamond tips operated at low force (<200 nN) in contact mode. In both cases, we observe that only a small fraction (<10 nm{sup 2}) of the physical contact (∼100 nm{sup 2}) is effectively contributing to the transport phenomena. Assuming this reduced area is confined to the central area of the physical contact, these results explain the sub-10 nm electrical resolution observed in C-AFM measurements.

  2. Implementing the Western Gulf of Maine Area Closure: The Role and Perception of Fishers' Ecological Knowledge

    Directory of Open Access Journals (Sweden)

    James Wilson

    2012-03-01

    Full Text Available The debate about the quality of fishers' ecological knowledge (FEK and its value to fisheries management has long been present in the literature. This study sought to understand the role of FEK in a particular fisheries management decision in the U.S. and to evaluate the extent that different stakeholder groups recognized and used FEK in fisheries policy creation. The 1998 implementation of the Western Gulf of Maine Area Closure (WGoMAC was a management response to the rapid decline in the Gulf of Maine cod (Gadus morhua stock. Using structured surveys and semistructured interviews, we collected information from major stakeholder groups that were active during the creation of the area closure: New England Fishery Management Council (NEFMC members, Groundfish Advisory Panel members, Groundfish Plan Development Team members, and Maine groundfishers. Results indicated that 95% of respondents believed that fishers possess ecological knowledge that could be useful in the fishery management process. In the case of the WGoMAC creation, 62% of respondents indicated that FEK played a role in the decision, even though 85% recognized obstacles to the use of FEK in the management process. Interviews demonstrated that FEK was able to improve upon the spatial resolution of scientific data by identifying seasonal migration patterns of prespawning cod and behavioral differences between juvenile and adult cod. This information was a product of a peer-reviewed process among groundfishers and it was used to fine-tune the exact location of the closure. These findings suggest that there are ways to incorporate FEK into fishery management for the purposes of stock and habitat conservation. Additionally, the benefit of having ecological information that spans different spatial scales for fishery management was observed in this study. By combining the knowledge systems of fishers and fisheries scientists, managers were able to capture ecological information at a finer

  3. Comparing the Reproductive Success of Yakima River Hatchery- and Wild-Origin Spring Chinook; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2004-2005 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Schroder, S.L.; Pearsons, T.N. (Washington Department of Fish and Wildlife, Olympia, WA); Knudsen, C.M. (Oncorh Consulting, Olympia, WA)

    2005-05-01

    A growing body of literature suggests that adult salmon produced by artificial culture are not as reproductively successful as wild fish when they spawn under natural conditions. Behavioral, morphological, and physiological divergences have been observed between hatchery and wild fish. These disparities are the likely proximate causes of the differences seen in the reproductive success of hatchery and wild salmonids. Two evolutionary paradigms have been proposed to explain why salmonids cultured in hatcheries are genetically and phenotypically different from wild cohorts. The first proposes that natural selection has been significantly relaxed in hatcheries. Consequently, fish that normally would have perished because of the possession of unsuitable traits are able to survive. If these traits have a genetic basis, they may become established in a hatchery population and cause its productivity to be less than expected if the fish are once again exposed to natural selection pressures. The second theorizes that environmental and social conditions in hatcheries are less variable than in the natural environment and that these conditions will remain relatively constant from one generation to the next. In this circumstance, selection for genetic traits that adapt fish to artificial culture will become prevalent in the population. Such traits may be mal-adaptive under natural conditions. Many of the studies that have compared the reproductive success (RS) of hatchery and wild fish, however, have used non-local hatchery fish that have experienced multiple generations of hatchery culture. Few efforts have been made where both the hatchery and wild fish have originated from the same population. When such studies have been performed differences in the competency of the fish to produce offspring have not been detected or are not as great as those expressed when non-local hatchery fish have been used. The hatchery spring Chinook produced by the Yakima Fisheries Project

  4. Effects of Domestication on Predation Mortality and Competitive Dominance; Yakima/Klickitat Fisheries Project Monitoring and Evaluation Report 2 of 7, 2003-2004 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Pearsons, Todd N.; Fritts, Anthony L.; Scott, Jennifer L. (Washington Department of Fish and Wildlife, Olympia, WA)

    2004-05-01

    This report is intended to satisfy two concurrent needs: (1) provide a contract deliverable from the Washington Department of Fish and Wildlife (WDFW) to the Bonneville Power Administration (BPA), with emphasis on identification of salient results of value to ongoing Yakima/Klickitat Fisheries Project (YKFP) planning, and (2) summarize results of research that have broader scientific relevance. This is the first of a series of progress reports that address the effects of hatchery domestication on predation mortality and competitive dominance in the upper Yakima River basin. This progress report summarizes data collected between January 1, 2003 and December 31, 2003. Raising fish in hatcheries can cause unintended behavioral, physiological, or morphological changes in chinook salmon due to domestication selection. Domestication selection is defined by Busack and Currens 1995 as, ''changes in quantity, variety, or combination of alleles within a captive population or between a captive population and its source population in the wild as a result of selection in an artificial environment''. Selection in artificial environments could be due to intentional or artificial selection, biased sampling during some stage of culture, or unintentional selection (Busack and Currens 1995). Genetic changes can result in lowered survival in the natural environment (Reisenbichler and Rubin 1999). The goal of supplementation or conservation hatcheries is to produce fish that will integrate into natural populations. Conservation hatcheries attempt to minimize intentional or biased sampling so that the hatchery fish are similar to naturally produced fish. However, the selective pressures in hatcheries are dramatically different than in the wild, which can result in genetic differences between hatchery and wild fish. The selective pressures may be particularly prominent during the freshwater rearing stage where most mortality of wild fish occurs. The Yakima Fisheries

  5. Effects of Domestication on Predation Mortality and Competitive Dominance; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2004-2005 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Pearsons, Todd N.; Fritts, Anthony L.; Scott, Jennifer L. (Washington Department of Fish and Wildlife, Olympia, WA)

    2005-05-01

    This report is intended to satisfy two concurrent needs: (1) provide a contract deliverable from the Washington Department of Fish and Wildlife (WDFW) to the Bonneville Power Administration (BPA), with emphasis on identification of salient results of value to ongoing Yakima/Klickitat Fisheries Project (YKFP) planning, and (2) summarize results of research that have broader scientific relevance. This is the second of a series of progress reports that address the effects of hatchery domestication on predation mortality and competitive dominance in the upper Yakima River basin (Pearsons et al. 2004). This progress report summarizes data collected between January 1, 2004 and December 31, 2004. Raising fish in hatcheries can cause unintended behavioral, physiological, or morphological changes in chinook salmon due to domestication selection. Domestication selection is defined by Busack and Currens 1995 as, ''changes in quantity, variety, or combination of alleles within a captive population or between a captive population and its source population in the wild as a result of selection in an artificial environment''. Selection in artificial environments could be due to intentional or artificial selection, biased sampling during some stage of culture, or unintentional selection (Busack and Currens 1995). Genetic changes can result in lowered survival in the natural environment (Reisenbichler and Rubin 1999). The goal of supplementation or conservation hatcheries is to produce fish that will integrate into natural populations. Conservation hatcheries attempt to minimize intentional or biased sampling so that the hatchery fish are similar to naturally produced fish. However, the selective pressures in hatcheries are dramatically different than in the wild, which can result in genetic differences between hatchery and wild fish. The selective pressures may be particularly prominent during the freshwater rearing stage where most mortality of wild fish occurs

  6. 75 FR 28783 - South Atlantic Fishery Management Council; Public Meetings

    Science.gov (United States)

    2010-05-24

    ... includes management measures to extend the range of the Snapper Grouper FMP north, designate Essential Fish... Fish Habitat (EFH) and EFH-Habitat Areas of Particular Concern as required by the Final Rule, harvest... Gulf of Mexico Fishery Management Council's Spiny Lobster Committee and Advisory Panel, a meeting...

  7. 77 FR 2039 - North Pacific Fishery Management Council; Public Meetings

    Science.gov (United States)

    2012-01-13

    ... Gulf of Alaska (GOA) Halibut PSC. 4. Bering Sea Aleutian Island (BSAI) Crab Management: Update on.... Habitat Issues; Initial review of GOA Trawl Sweep modifications; Initial review Habitat Area Particular...; Discussion paper on GOA Chinook Bycatch in all trawl fisheries; Discussion paper on GOA Pollock D-...

  8. Evaluating Landscape Connectivity for Puma concolor and Panthera onca Among Atlantic Forest Protected Areas

    Science.gov (United States)

    Castilho, Camila S.; Hackbart, Vivian C. S.; Pivello, Vânia R.; dos Santos, Rozely F.

    2015-06-01

    Strictly Protected Areas and riparian forests in Brazil are rarely large enough or connected enough to maintain viable populations of carnivores and animal movement over time, but these characteristics are fundamental for species conservation as they prevent the extinction of isolated animal populations. Therefore, the need to maintain connectivity for these species in human-dominated Atlantic landscapes is critical. In this study, we evaluated the landscape connectivity for large carnivores (cougar and jaguar) among the Strictly Protected Areas in the Atlantic Forest, evaluated the efficiency of the Mosaics of Protected Areas linked to land uses in promoting landscape connectivity, identified the critical habitat connections, and predicted the landscape connectivity status under the implementation of legislation for protecting riparian forests. The method was based on expert opinion translated into land use and land cover maps. The results show that the Protected Areas are still connected by a narrow band of landscape that is permeable to both species and that the Mosaics of Protected Areas increase the amount of protected area but fail to increase the connectivity between the forested mountain ranges (Serra do Mar and Serra da Mantiqueira). Riparian forests greatly increase connectivity, more than tripling the cougars' priority areas. We note that the selection of Brazilian protected areas still fails to create connectivity among the legally protected forest remnants. We recommend the immediate protection of the priority areas identified that would increase the structural landscape connectivity for these large carnivores, especially paths in the SE/NW direction between the two mountain ranges.

  9. CROATIAN FRESHWATER FISHERY IN 2001 and 2002

    Directory of Open Access Journals (Sweden)

    Irena Jahutka

    2003-09-01

    Full Text Available For each segment of freshwater fisheries — freshwater aquaculture, commercial and sport and recreational fisheries — there is a legal obligation for data submission to the Ministry of agriculture and forestry, Directorate of fisheries. Within the segments of commercial and sport and recreational fisheries the data submission obligation refers to the period beginning with the year 2003, while in the segment of aquaculture that obligation includes also the year 2002. Data collected for freshwater aquaculture contain the information on production of freshwater fish, total production areas, food, fertilizers and subsidies for freshwater fish farming. Data collected for commercial and sport and recreational fisheries contain the information on catch quantities and number of commercial and sport and recreational fishermen. Freshwater fish production in the year 2001 was 5,549. 50 tons, while the total fresh water fish production in the year 2002 decreased for 1.00% compared to the previous year, amounting to 5,501.07 tons. Although total fresh water fish production constantly decreases comparing to previous years, trout production has increased and the maximum production was noted in the year 2002. Total area of the freshwater fish farms in the year 2001 increased compared to the year 2000 for 2.14% amounting to 11,880.41 ha. Actual production area slightly increased in comparison to the previous year as well and amounted to 9,214.11 ha. In the year 2002 total area of freshwater fish farms was 11,491.29 ha, and 72.13% of that figure was the actual production area, that is 8,288.27 ha. Production per unit area in the year 2001 was 485.31 kg/ha for warm–water species and 280.44 t/ha for cold–water species. In the year 2002 production per unit area for warm–water species was 462.95 kg/ha, and for cold–water species 315.26 t/ha. During the year 2001, in total, 10,575.82 t of food was spent and 1,891 tons of fertilizers and lime, while in the

  10. SAFRR tsunami scenario: impacts on California ecosystems, species, marine natural resources, and fisheries: Chapter G in The SAFRR (Science Application for Risk Reduction) Tsunami Scenario

    Science.gov (United States)

    Brosnan, Deborah; Wein, Anne; Wilson, Rick

    2014-01-01

    We evaluate the effects of the SAFRR Tsunami Scenario on California’s ecosystems, species, natural resources, and fisheries. We discuss mitigation and preparedness approaches that can be useful in Tsunami planning. The chapter provides an introduction to the role of ecosystems and natural resources in tsunami events (Section 1). A separate section focuses on specific impacts of the SAFRR Tsunami Scenario on California’s ecosystems and endangered species (Section 2). A section on commercial fisheries and the fishing fleet (Section 3) documents the plausible effects on California’s commercial fishery resources, fishing fleets, and communities. Sections 2 and 3 each include practical preparedness options for communities and suggestions on information needs or research. Our evaluation indicates that many low-lying coastal habitats, including beaches, marshes and sloughs, rivers and waterways connected to the sea, as well as nearshore submarine habitats will be damaged by the SAFRR Tsunami Scenario. Beach erosion and complex or high volumes of tsunami-generated debris would pose major challenges for ecological communities. Several endangered species and protected areas are at risk. Commercial fisheries and fishing fleets will be affected directly by the tsunami and indirectly by dependencies on infrastructure that is damaged. There is evidence that in some areas intact ecosystems, notably sand dunes, will act as natural defenses against the tsunami waves. However, ecosystems do not provide blanket protection against tsunami surge. The consequences of ecological and natural resource damage are estimated in the millions of dollars. These costs are driven partly by the loss of ecosystem services, as well as cumulative and follow-on impacts where, for example, increased erosion during the tsunami can in turn lead to subsequent damage and loss to coastal properties. Recovery of ecosystems, natural resources and fisheries is likely to be lengthy and expensive

  11. Yakima River Species Interactions Study; Yakima/Klickitat Fisheries Project Monitoring and Evaluation Report 7 of 7, 2003-2004 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Pearsons, Todd N.; Fritts, Anthony L.; Temple, Gabriel M. (Washington Department of Fish and Wildlife, Olympia, WA)

    2004-05-01

    This report is intended to satisfy two concurrent needs: (1) provide a contract deliverable from the Washington Department of Fish and Wildlife (WDFW) to the Bonneville Power Administration (BPA), with emphasis on identification of salient results of value to ongoing Yakima/Klickitat Fisheries Project (YKFP) planning, and (2) summarize results of research that have broader scientific relevance. This is the twelfth of a series of progress reports that address species interactions research and supplementation monitoring of fishes in response to supplementation of salmon and steelhead in the upper Yakima River basin (Hindman et al. 1991; McMichael et al. 1992; Pearsons et al. 1993; Pearsons et al. 1994; Pearsons et al. 1996; Pearsons et al. 1998, Pearsons et al. 1999, Pearsons et al. 2001a, Pearsons et al. 2001b, Pearsons et al. 2002, Pearsons et al. 2003). Journal articles and book chapters have also been published from our work (McMichael 1993; Martin et al. 1995; McMichael et al. 1997; McMichael and Pearsons 1998; McMichael et al. 1998; Pearsons and Fritts 1999; McMichael et al. 1999; McMichael et al. 1999; Pearsons and Hopley 1999; Ham and Pearsons 2000; Ham and Pearsons 2001; Amaral et al. 2001; McMichael and Pearsons 2001; Pearsons 2002, Fritts and Pearsons 2004, Pearsons et al. in press, Major et al. in press). This progress report summarizes data collected between January 1, 2003 and December 31, 2003. These data were compared to findings from previous years to identify general trends and make preliminary comparisons. Interactions between fish produced as part of the YKFP, termed target species or stocks, and other species or stocks (non-target taxa) may alter the population status of non-target species or stocks. This may occur through a variety of mechanisms, such as competition, predation, and interbreeding (Pearsons et al. 1994; Busack et al. 1997; Pearsons and Hopley 1999). Furthermore, the success of a supplementation program may be limited by strong

  12. 76 FR 61061 - Fisheries of the Northeastern United States; Atlantic Herring Fishery; Sub-ACL (Annual Catch...

    Science.gov (United States)

    2011-10-03

    ... is 38,146 mt and 0 mt of the sub-ACL is set aside for research (75 FR 48874, August 12, 2010). The... Northeastern United States; Atlantic Herring Fishery; Sub-ACL (Annual Catch Limit) Harvested for Management... day until January 1, 2012, when the 2012 sub-ACL (annual catch limit) for Area 3 becomes...

  13. 76 FR 61059 - Fisheries of the Northeastern United States; Atlantic Herring Fishery; Sub-ACL (Annual Catch...

    Science.gov (United States)

    2011-10-03

    ...,362 mt and 0 mt of the sub-ACL is set aside for research (75 FR 48874, August 12, 2010). The... Northeastern United States; Atlantic Herring Fishery; Sub-ACL (Annual Catch Limit) Harvested for Management... calendar day until January 1, 2012, when the 2012 sub-ACL for Area 1B becomes available, except...

  14. Fishery livelihoods and (non)compliance with fishery regulations - A case study in Ca Mau Province, Mekong Delta, Vietnam

    NARCIS (Netherlands)

    Ha, T.T.P.; Dijk, van H.

    2013-01-01

    Fishery in Ca Mau, Viet Nam’s most southern province in the Mekong Delta, plays locally an important role for human nutrition and has great potentials for export earnings. The overexploitation of inshore fishing resources is a major problem in Viet Nam’s coastal areas along the Mekong Delta. As a re

  15. Comparative Resilience in Five North Pacific Regional Salmon Fisheries

    Directory of Open Access Journals (Sweden)

    Courtland L. Smith

    2010-06-01

    Full Text Available Over the past century, regional fisheries for Pacific salmon (Oncorhynchus spp. have been managed primarily for their provisioning function, not for ecological support and cultural significance. We examine the resilience of the regional salmon fisheries of Japan, the Russian Far East, Alaska, British Columbia, and Washington-Oregon-California (WOC in terms of their provisioning function. Using the three dimensions of the adaptive cycle—capital, connectedness, and resilience—we infer the resilience of the five fisheries based on a qualitative assessment of capital accumulation and connectedness at the regional scale. In our assessment, we evaluate natural capital and connectedness and constructed capital and connectedness. The Russian Far East fishery is the most resilient, followed by Alaska, British Columbia, Japan, and WOC. Adaptive capacity in the fisheries is contingent upon high levels of natural capital and connectedness and moderate levels of constructed capital and connectedness. Cross-scale interactions and global market demand are significant factors in reduced resilience. Greater attention to ecological functioning and cultural signification has the potential to increase resilience in Pacific salmon ecosystems.

  16. 78 FR 9327 - Hawaii Crustacean Fisheries; 2013 Northwestern Hawaiian Islands Lobster Harvest Guideline

    Science.gov (United States)

    2013-02-08

    ...; 2013 Northwestern Hawaiian Islands Lobster Harvest Guideline AGENCY: National Marine Fisheries Service... lobster harvest guideline. SUMMARY: NMFS establishes the annual harvest guideline for the commercial... harvest guideline for lobster Permit Area 1, comprised of Federal waters around the (NWHI)....

  17. The Economics of Marine Ecosystem Services – the Fisheries Case

    DEFF Research Database (Denmark)

    Ravensbeck, Lars

    that assesses the increasing conflict between public interests to conserve natural resources and commercial fisheries. The grey seal-fishery case in the Baltic Sea is a textbook example of such a conflict. The approach is a combination of bioeconomics and standard cost-benefit analyses. Direct costs associated...... with grey seals are large compared to the indirect costs of forgone fishing opportunities. The benefits outweigh the indirect costs, but are significant lower than the direct costs. The results indicate that it would be socio-economic beneficial to reduce the seal population, but difficulties in evaluating...

  18. Subjective Evaluations of Motion Area and Velocity Characteristics of Dual Manipulator in Young and Elderly People

    Science.gov (United States)

    Yoda, Mitsumasa; Yoda, Asako; Shiota, Yasuhito

    In this study, we conducted a subjective evaluation experiment of a dual manipulator, which exhibits different motion characteristics. There are three motion characteristics: two of which are age-related, and the third is a robot motion characteristic and is newly added to these two motions. The motions are evaluated from motion areas and motion velocities. Subjects are elderly and young people, and the impressions of the motions are compared in two of the different age groups by the Semantic Differential (SD) method. The obtained results indicate that there are age differences in the evaluation of three manipulator motion areas. The elderly people show a higher reliability and a higher familiarity in a robot motion area than in the other two motions. The elderly people seem to be more affected by the manipulator motion than the young people. Therefore, a careful consideration is required when planning the motion of a manipulator for elderly people.

  19. Appendix geoecological evaluation of the area of nature reserve "Obedska bara" (Serbia

    Directory of Open Access Journals (Sweden)

    Krajić Aleksandar

    2011-01-01

    Full Text Available Special nature reserve "Obedska bara" and its protection area is geoecological evaluated by using the recreation potential indexing method for nautical tourism and recreation sports of rowing, and for aerobic and excursion tourism. Evaluation confirmed that the left bank of the river Sava from Grabovci to Kupinovo, for the needs of nautical tourism, falls into the category of high-value areas, and for recreation is characterized as mainly valuable landscapes. Valuation of the alluvial plain for the purpose of aerobics has shown that fall into the category of “mostly” valuable land. Land evaluation has concluded that the settlements Kupinovo and Obrez circumcised the category very valuable tourist destinations as opposed to Grabovci falling into the category of mostly hard-working but Ogar and Asanja are categorized as“relatively” valuable areas.

  20. The evaluation of ecosystem health in mining areas on the matter element method

    Institute of Scientific and Technical Information of China (English)

    LI Xin-ju; LIU Xue-ran; LU Yan-yan; GUO Shuo-li; WANG Mei

    2011-01-01

    According to the characteristics of ecosystem and concept of the ecosystem in mining area, the index system of the ecosystem health in mining area was set up, and the evaluation standard was established. Aiming at the complexion in which the information lost in index ration, the matter element method was put forward to evaluate the ecosystem health in mining area. Making use of the model set up, the weight was built up by the method of index number heavy, the matter element, classical field, and limit field were set up. The rating hierarchy was calculated by relating function. As a case study in the mining area of Pingyangsi Town, the results show that the ecosystem is good and sustainable from 2003 to 2006, but the healthy degree is not high, and some indexes have depravation.

  1. Evaluation of equivalent accumulation area of internal defects based on statistical law of yield loads

    Energy Technology Data Exchange (ETDEWEB)

    Ma, Zhichao, E-mail: zcma@jlu.edu.cn [School of Mechanical Science and Engineering, Jilin University, Changchun 130025 (China); Zhao, Hongwei, E-mail: hwzhao@jlu.edu.cn [School of Mechanical Science and Engineering, Jilin University, Changchun 130025 (China); Liu, Changyi, E-mail: changyi_liu@126.com [School of Mechanical Science and Engineering, Jilin University, Changchun 130025 (China); Ren, Luquan, E-mail: lqren@jlu.edu.cn [Key Laboratory of Bionic Engineering Ministry of Education, Jilin University, Changchun 130025 (China)

    2015-11-15

    In this paper, in order to evaluate the approximate equivalent accumulation area S{sub dmax} of initial internal defects in the dangerous cross section of structures, a series of Vickers indentations were prepared on the gage part of well polished Ti-6Al-4V specimens as emebedded defects, the indentation areas S{sub v} were compared with S{sub dmax}. With various S{sub v}, approximate Gaussian distribution of the yield loads was obtained based on mathematical expectation E(F{sub s}) and standard deviation σ(F{sub s}), and the changing rule of E(F{sub s}) as a function of S{sub v} was obtained. A decrement of E(F{sub s}) of 2.6% was obtained when S{sub v} increased from 3654.4 μm{sup 2} to 6982.8 μm{sup 2}{sub .} The approximate ratio of S{sub dmax} to the initial sectional area S{sub o} was evaluated as 3.0%. - Graphical abstract: Calculation of the equivalent accumulation area S{sub dmax} of initial internal defects in the dangerous cross section by the comparison with indentation embedded defects. Changing trend of mathematical expectation of yield loads E(F{sub s}) indicated that the approximate ratio of S{sub dmax} to S{sub o} (initial sectional area) of 3.0% was evaluated. - Highlights: • Evaluation the approximate equivalent accumulation area S{sub dmax} of initial internal defects in the dangerous cross section. • A series of Vickers indentations were prepared as emebedded defects. • The ratio of S{sub dmax} to S{sub o} (initial sectional area) was approximatively evaluated. • Allowable load F{sub m} was redefined as calculated.

  2. Results of chemical, toxicological, and bioaccumulation evaluations of dioxins, furans, and guaicol/organic acids in sediments from the Grays Harbor/Chehalis River area

    International Nuclear Information System (INIS)

    The Battelle/Marine Sciences Laboratory (MSL) was requested by the US Army Corps of Engineers (USACE), Seattle District, to assist in planning and conducting sampling, toxicological tests, and chemistry evaluations on sediment samples collected from the Chehalis River in Grays Harbor, Washington. The objectives of the study were to investigate the toxicity and biological effects of sediments that might potentially contain dioxins, furans, and organic acids, as a result of industrial practices in the Grays Harbor area, on sensitive marine species. In addition to the toxicological tests conducted using standard bioassays, sediment chemistry tests were performed to determine levels of selected chemicals, and elutriates of sediments were tested chemically and biologically to determine contaminant mobility in water. Also, bioaccumulation measurements were made to determine chemical mobility in animal tissue. A joint task group, including representatives from the USACE, Washington Department of Ecology (WDOE), Washington Department of Natural Resources (WDNR), Washington Department of Fisheries (WDOF), and Region 9 of the US Environmental Protection Agency (USEPA) participated in designing the testing program and reviewing data produced by MSL. The results of this analysis will be included in a supplemental Environmental Assessment (EA) prepared by the USACE for the Grays Harbor Dredging Program, beginning in early 1990. 13 refs., 5 figs., 8 tabs

  3. 77 FR 6785 - Proposed Information Collection; Comment Request; List of Gear by Fisheries and Fishery...

    Science.gov (United States)

    2012-02-09

    ... Gear by Fisheries and Fishery Management Council AGENCY: National Oceanic and Atmospheric... Secretary takes no action to prohibit such a fishery or use of such a gear, the person may proceed. II...-Stevens Fishery and Conservation and Management Act (Magnuson-Stevens Act) [16 U.S.C. 1801 et seq.],...

  4. Urban Modality: Modelling and evaluating the sustainable mobility of urban areas in the city-region

    OpenAIRE

    Gil, J. A.

    2016-01-01

    This thesis proposes a framework for evaluating the mobility potential and performance of urban areas in the city region, as an instrument to support urban development that contributes positively to regional sustainable mobility objectives. The research takes a quantitative approach, modelling and measuring the characteristics of a city-region and of its individual urban areas, in terms of travel patterns and socio- economic characteristics of the resident population, and in terms of built en...

  5. Air traffic generation for new terminal area air traffic management concepts design and evaluation

    OpenAIRE

    Besada Portas, Juan Alberto; Marquinez Prado, Iñigo; Portillo Garcia, Javier Ignacio; Miguel Vela, Gonzalo de; Bernardos Barbolla, Ana M.

    2015-01-01

    This paper describes two systems that can be used to obtain realistic random traffic samples in a terminal area: a real traffic analyser and a synthetic traffic generator. These two systems allow the air traffic management (ATM) engineer to gain insight on the traffic structure of the area under analysis, and allow obtaining realistic traffic samples enabling the evaluation of new operational concepts, the validation or system performance measurement after procedure changes, the analysis of A...

  6. Evaluating the Vegetation Recovery in the Damage Area of Wenchuan Earthquake Using MODIS Data

    OpenAIRE

    Wei-Guo Jiang; Kai Jia; Jian-Jun Wu; Zheng-Hong Tang; Wen-Jie Wang; Xiao-Fu Liu

    2015-01-01

    The catastrophic 8.0 Richter magnitude earthquake that occurred on 12 May 2008 in Wenchuan, China caused extensive damage to vegetation due to widespread landslides and debris flows. In the past five years, the Chinese government has implemented a series of measures to restore the vegetation in the severely afflicted area. How is the vegetation recovering? It is necessary and important to evaluate the vegetation recovery effect in earthquake-stricken areas. Based on MODIS NDVI data from 2005 ...

  7. Fisheries Management Plan : Muscatatuck National Wildlife Refuge

    Data.gov (United States)

    US Fish and Wildlife Service, Department of the Interior — This Fisheries Management Plan for Muscatatuck NWR provides an introduction to the Refuge, summarizes the relationship of fishery management to Refuge objectives,...

  8. Magnuson-Stevens Fishery Conservation Act

    Data.gov (United States)

    National Oceanic and Atmospheric Administration, Department of Commerce — The Magnuson-Stevens Fishery Conservation and Management Act (MSA) is the primary law governing marine fisheries management in U.S. federal waters. It has since...

  9. A GIS-based method for flooded area calculation and damage evaluation

    Institute of Scientific and Technical Information of China (English)

    2001-01-01

    Using geographic information system to study flooded area and damage evaluation has been a hotspot in environmental disaster research for years. In this paper, a model for flooded area calculation and damage evaluation is presented. Flooding is divided into two types:‘source flood' and ‘non-source flood'. The source-flood area calculation is based on seed spread algorithm. The flood damage evaluation is calculated by overlaying the flooded area range with thematic maps and relating the result to other social and economic data. To raise the operational efficiency of the model, a skipping approach is used to speed seed spread algorithm and all thematic maps are converted to raster format before overlay analysis. The accuracy of flooded area calculation and damage evaluation is mainly dependent upon the resolution and precision of the digital elevation model (DEM) data, upon the accuracy of registering all raster layers, and upon the quality of economic information. This model has been successfully used in the Zhejiang Province Comprehensive Water Management Information System developed by the authors. The applications show that this model is especially useful for most counties of China and other developing countries.

  10. Vulnerability of the Oceanic Whitetip Shark to Pelagic Longline Fisheries.

    Science.gov (United States)

    Tolotti, Mariana Travassos; Bach, Pascal; Hazin, Fábio; Travassos, Paulo; Dagorn, Laurent

    2015-01-01

    A combination of fisheries dependent and independent data was used to assess the vulnerability of the oceanic whitetip shark to pelagic longline fisheries. The Brazilian tuna longline fleet, operating in the equatorial and southwestern Atlantic, is used as a case study. Fisheries dependent data include information from logbooks (from 1999 to 2011) and on-board observers (2004 to 2010), totaling 65,277 pelagic longline sets. Fisheries independent data were obtained from 8 oceanic whitetip sharks tagged with pop-up satellite archival tags in the area where longline fleet operated. Deployment periods varied from 60 to 178 days between 2010 and 2012. Tagging and pop-up sites were relatively close to each other, although individuals tended to travel long distances before returning to the tagging area. Some degree of site fidelity was observed. High utilization hotspots of tagged sharks fell inside the area under strongest fishing pressure. Despite the small sample size, a positive correlation between tag recorded information and catch data was detected. All sharks exhibited a strong preference for the warm and shallow waters of the mixed layer, spending on average more than 70% of the time above the thermocline and 95% above 120 m. Results indicate that the removal of shallow hooks on longline gear might be an efficient mitigation measure to reduce the bycatch of this pelagic shark species. The work also highlights the potential of tagging experiments to provide essential information for the development of spatio-temporal management measures. PMID:26492091

  11. Vulnerability of the Oceanic Whitetip Shark to Pelagic Longline Fisheries.

    Directory of Open Access Journals (Sweden)

    Mariana Travassos Tolotti

    Full Text Available A combination of fisheries dependent and independent data was used to assess the vulnerability of the oceanic whitetip shark to pelagic longline fisheries. The Brazilian tuna longline fleet, operating in the equatorial and southwestern Atlantic, is used as a case study. Fisheries dependent data include information from logbooks (from 1999 to 2011 and on-board observers (2004 to 2010, totaling 65,277 pelagic longline sets. Fisheries independent data were obtained from 8 oceanic whitetip sharks tagged with pop-up satellite archival tags in the area where longline fleet operated. Deployment periods varied from 60 to 178 days between 2010 and 2012. Tagging and pop-up sites were relatively close to each other, although individuals tended to travel long distances before returning to the tagging area. Some degree of site fidelity was observed. High utilization hotspots of tagged sharks fell inside the area under strongest fishing pressure. Despite the small sample size, a positive correlation between tag recorded information and catch data was detected. All sharks exhibited a strong preference for the warm and shallow waters of the mixed layer, spending on average more than 70% of the time above the thermocline and 95% above 120 m. Results indicate that the removal of shallow hooks on longline gear might be an efficient mitigation measure to reduce the bycatch of this pelagic shark species. The work also highlights the potential of tagging experiments to provide essential information for the development of spatio-temporal management measures.

  12. Evaluation of groundwater quality in rural-areas of northern Malawi: Case of Zombwe Extension Planning Area in Mzimba

    Science.gov (United States)

    Chidya, Russel C. G.; Matamula, Swithern; Nakoma, Oliver; Chawinga, Charles B. J.

    2016-06-01

    Many people in in the Sub-Saharan region rely on groundwater for drinking and other household uses. Despite this significance, information on the chemical composition of the water in the boreholes and emperical data on groundwater quality is limited in some rural areas of Malawi. This study was conducted to evaluate the physico-chemical quality of water from boreholes (n = 20) in Zombwe Extension Planning Area (EPA), Mzimba in Northern Malawi to ascertain their safety. Desktop studies and participatory approaches were employed to assess the socio-economic activities and water supply regime in the study areas. The water samples were analysed for pH, conductivity (EC), turbidity, water temperature, nitrate (NO3-), magnesium (Mg), calcium (Ca), zinc (Zn), fluoride (F-), and sulphate (SO42-). In-situ and laboratory analyses were carried out using portable meters and standard procedures. The results were compared with national (Malawi Bureau of Standards - MBS) and international standards (World Health Organization - WHO) for drinking water. The following ranges were obtained: pH (6.00-7.80), EC (437-3128 μS/cm), turbidity (0.10-5.80 NTU), water temperature (27.0-30.60 °C), NO3- (0.30-30.00 mg/L), F- (0.10-8.10 mg/L), Mg (31.00-91.00 mg/L), Ca (20.00-197.10 mg/L), SO42- (10.20-190 mg/L), Fe (0.10-3.60 mg/L) and Zn (0.00-5.10 mg/L). Generally, some parameters tested at several sites (>80%, n = 20) complied with both MBS and WHO limits. No significant differences (p > 0.05) was observed for most parameters (>65%, n = 11). Groundwater contamination was not significant in the area despite some parameters like F-, Ca and SO42- showing higher levels at other sites. Some sites registered very hard water (244.60-757.80 mg/L CaCO3) probably due to mineralization influenced by underground rock material. Further studies are needed to ascertain the groundwater quality of other parameters (like F-, and SO42-) which registered higher levels at some sites. Routine monitoring of the

  13. An ecosystem modelling framework for incorporating climate regime shifts into fisheries management

    Science.gov (United States)

    Fu, Caihong; Perry, R. Ian; Shin, Yunne-Jai; Schweigert, Jake; Liu, Huizhu

    2013-08-01

    Ecosystem-based approaches to fisheries management (EBM) attempt to account for fishing, climate variability and species interactions when formulating fisheries management advice. Ecosystem models that investigate the combined effects of ecological processes are vital to support the implementation of EBM by assessing the effectiveness of management strategies in an ecosystem context. In this study, an individual-based ecosystem model was used to demonstrate how species at different trophic levels and of different life histories responded to climate regimes and how well different single- or various multi-species fisheries at different intensities perform in terms of human benefits (yield) and trade-offs (fishery closures) as well as their impacts on the ecosystem. In addition, other performance indicators were also used to evaluate management strategies. The simulations indicated that under no fishing, each species responded to the regimes differently due to different life history traits and different trophic interactions. Fishing at the level of natural mortality (F = M) produced the highest yields within each fishery, however, an F adjusted for the current productivity conditions (regime) resulted in much fewer fishery closures compared with F = M, indicating the advantage of implementing a policy of a regime-specific F from the stand point of conservation and fishery stability. Furthermore, a regime-specific F strategy generally resulted in higher yield and fewer fishery closures compared with F = 0.5M. Other performance indicators also pointed to the advantage of using a regime-specific F strategy in terms of the stability of both ecosystem and fishery production. As a specific example, fishing the predators of Pacific herring under all multi-species fisheries scenarios increased the yield of Pacific herring and reduced the number of herring fishery closures. This supports the conclusion that an exploitation strategy which is balanced across all trophic levels

  14. Towards sustainable coexistence of aquaculture and fisheries in the coastal zone

    OpenAIRE

    Bergh, Øjvind; Gomez, Emma Bello; Børsheim, Knut Yngve; Bolman, Bas; Bricker, Suzanne; Burnell, Gavin; Caetano, Miguel; van Duijn, Arie; Fabi, Gianna; Ferreira, João G.; Gault, Jeremy; Grati, Fabio; Grönroos, Juha; Guayder, Olivier; Jak, Robbert

    2012-01-01

    Globally, coastal areas are subject to an increase in competing activities. Coastal fisheries and aquaculture are highly dependent on availability and accessibility of appropriate sites. Aquaculture production is increasing, whereas fisheries are at best stagnant. Coastal activities also include activities such as recreation, tourism, facilities for renewable energy production, all of which are expected to increase in importance. There is also increasing focus on Marine Protected Areas (MPAs)...

  15. The Intuitional Perspective of Environment Pollutants Impact Severity on Artisanal Fisheries Resources in Niger Delta, Nigeria

    OpenAIRE

    Abowei Jasper; J.A. Akankali

    2010-01-01

    The intuitional perspective of environment Pollutants Impact Severity on Artisanal Fisheries Resources in Niger Delta area of Nigeria was conducted for a period of one year (January 2008 – December 2008) to determine severity of environmental pollutants impacting on fisheries resources conservation and management in the Niger Delta region based on the opinion of relevant institutional personnel perspective, The study area covered include three core fishing states of Bayelsa, Delta and Rivers ...

  16. Perceptions of fish habitat conditions in Oklahoma tailwater fisheries: a survey of fisheries managers

    Science.gov (United States)

    Long, James M.

    2011-01-01

    While the downstream effects of dams on fish habitat have long been recognized, broad-scale assessments of tailwater fish habitat have rarely been conducted. In this paper, I report on the status of tailwater fisheries in Oklahoma as determined through a web-based survey of fisheries biologists with the Oklahoma Department of Wildlife Conservation conducted in July 2010. Respondents addressed 38 tailwaters, encompassing all major areas of the state. The majority of fish species comprising these fisheries included blue catfish (Ictalurus furcatus), followed by white bass (Morone chrysops), channel catfish (I. punctatus) and flathead catfish (Pylodictis olivaris). Most respondents indicated no or low concerns with fish habitat in tailwaters under their management supervision; only two tailwaters (Tenkiller Ferry and Fort Gibson) had the majority of concerns with fish habitat identified as high to moderately high. Principal components analysis and subsequent correlation analysis showed that tailwaters that scored high for issues related to shoreline erosion, change in water depth, flow fluctuations, and flow timing were associated with dams with large maximum discharge ability. No other factors related to fish habitat condition in tailwaters were found. In Oklahoma, dams with maximum discharge of at least 6,767.5 m3 sec–1 were more likely to have flow-related fish habitat concerns in the tailwater.

  17. Small water bodies for sustainable fisheries production

    OpenAIRE

    Costa-Pierce, B.A. (eds.)

    1991-01-01

    A brief account is given of some of the discussions presented at a workshop regarding reservoir fisheries in Asia held in Hangzhou, China in Oct 1990. The presentations covered the range of reservoir fisheries management options, from basic limnological research and capture fisheries to intensive cage culture. Particular reference is made to the situation in China, describing current techniques used for stocking and developing reservoir fisheries.

  18. Economic and Trade Strategies in World Fisheries

    OpenAIRE

    Siegel, Robert A.; Johnston, Richard S.

    1989-01-01

    This special section of the Marine Fisheries Review contains the edited proceedings of a symposium held on 16 September 1987 at the annual meetings of the American Fisheries Society in Winston-Salem, N.C. The symposium was sponsored by the National Marine Fisheries Service of the National Oceanic and Atmospheric Administration, and the International Institute of Fisheries Economics and Trade. The aim of this session was to provide an overview of several international trade issues that affect ...

  19. Trust and new modes of fisheries governance

    OpenAIRE

    De Vos

    2011-01-01

     It is a commonplace today that many of the world’s commercial fisheries are in a state of crisis. As a response to the state of fisheries management, a large array of governance innovations has been deployed over the past two decades in many fisheries industries worldwide. In these new governance arrangements state, market, and/or civil society actors participate while striving for a more sustainable fisheries industry. These new governance arrangements influence social relations,...

  20. Fisheries conservation on the high seas: linking conservation physiology and fisheries ecology for the management of large pelagic fishes

    Science.gov (United States)

    Horodysky, Andrij Z.; Cooke, Steven J.; Graves, John E.; Brill, Richard W.

    2016-01-01

    Populations of tunas, billfishes and pelagic sharks are fished at or over capacity in many regions of the world. They are captured by directed commercial and recreational fisheries (the latter of which often promote catch and release) or as incidental catch or bycatch in commercial fisheries. Population assessments of pelagic fishes typically incorporate catch-per-unit-effort time-series data from commercial and recreational fisheries; however, there have been notable changes in target species, areas fished and depth-specific gear deployments over the years that may have affected catchability. Some regional fisheries management organizations take into account the effects of time- and area-specific changes in the behaviours of fish and fishers, as well as fishing gear, to standardize catch-per-unit-effort indices and refine population estimates. However, estimates of changes in stock size over time may be very sensitive to underlying assumptions of the effects of oceanographic conditions and prey distribution on the horizontal and vertical movement patterns and distribution of pelagic fishes. Effective management and successful conservation of pelagic fishes requires a mechanistic understanding of their physiological and behavioural responses to environmental variability, potential for interaction with commercial and recreational fishing gear, and the capture process. The interdisciplinary field of conservation physiology can provide insights into pelagic fish demography and ecology (including environmental relationships and interspecific interactions) by uniting the complementary expertise and skills of fish physiologists and fisheries scientists. The iterative testing by one discipline of hypotheses generated by the other can span the fundamental–applied science continuum, leading to the development of robust insights supporting informed management. The resulting species-specific understanding of physiological abilities and tolerances can help to improve stock

  1. Evaluation of seismic noise measurements in undermined area – Stonava locatity, Czech Republic

    OpenAIRE

    Lednická, M. (Markéta); Kaláb, Z. (Zdeněk)

    2014-01-01

    The paper presents results of site effect evaluation in undermined area. Measurement of seismic noise was performed in selected locality of Stonava village to evaluate changes of resonance frequency of sedimentary layers in the vicinity of permanent seismic station situated in this locality. Measurement of seismic noise was performed at about 18 places on the profile of the length of 2 km. Results of seismological measurement were analysed using HVNR method and resulting resonant frequencies ...

  2. Evaluation of intrusion sensors and video assessment in areas of restricted passage

    International Nuclear Information System (INIS)

    This report discusses an evaluation of intrusion sensors and video assessment in areas of restricted passage. The discussion focuses on applications of sensors and video assessment in suspended ceilings and air ducts. It also includes current and proposed requirements for intrusion detection and assessment. Detection and nuisance alarm characteristics of selected sensors as well as assessment capabilities of low-cost board cameras were included in the evaluation

  3. GIS-Based Multicriteria Evaluation Approach in Planning Tourism Development Sites in Environmentally Sensitive Areas

    OpenAIRE

    Harun Norhidayah; Samat Narimah

    2016-01-01

    Multicriteria evaluation approach has become useful mechanism in selecting choice possibilities based on number of alternatives. This approach has become useful for planners and engineers especially when dealing with allocating suitable sites for tourism development, which has often being undertaken within environmentally sensitive areas. Taking Langkawi Island, which has pristine natural resources, as example, this study demonstrates the usage of GIS-based multicriteria evaluation approach i...

  4. Ecotoxicological evaluation of wastewater in a municipal WWTP in Lisbon area (Portugal)

    OpenAIRE

    Mendonça, E.; Picado, Ana; Paixão, Susana M.; Silva, Luís Manuel; Barbosa, Marta; Cunha, Maria Ana

    2013-01-01

    Wastewater management has a central role in sustainable development, and, in this context, an integrated management of wastewater treatment plants (WWTP) can be important. WWTP discharge complex effluents and for a new strategy in environmental protection ecotoxicological evaluation should complement the usual chemical evaluation. The EU project WW4Environment was set up for a WWTP located in Lisbon area and discharging into Tagus estuary (Portugal). One of the main objectives of the project ...

  5. Evaluating the effectiveness of management of the Kisite-Mpunguti marine protected area.

    OpenAIRE

    Muthiga, N.

    2009-01-01

    Managers of Marine Protected Areas (MPAs) are faced with many demands and often do not have the opportunity to reflect on the results of their actions. Management evaluations allow managers to learn from successes and improve management through time. This first assessment of the management effectiveness of the Kisite-Mpunguti MPA used existing information to evaluate the actions and outcomes measured against the MPA's goals as outlined in the MPA management plan. Selected biophysical, socio-e...

  6. 78 FR 19649 - Fisheries of the Caribbean, Gulf of Mexico, and South Atlantic; Reef Fish Fishery of the Gulf of...

    Science.gov (United States)

    2013-04-02

    ... strategy for the headboat segment of the recreational fishing sector within the Gulf reef fish fishery... evaluate the efficacy of an allocation-based management strategy, which if proven successful, could... of customers), trip and season-level variable revenues and costs (e.g., trip pricing, gear, bait,...

  7. Yakima River Species Interactions Study; Yakima/Klickitat Fisheries Project Monitoring and Evaluation Report 7 of 7, 2003-2004 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Pearsons, Todd N.; Fritts, Anthony L.; Temple, Gabriel M. (Washington Department of Fish and Wildlife, Olympia, WA)

    2004-05-01

    This report is intended to satisfy two concurrent needs: (1) provide a contract deliverable from the Washington Department of Fish and Wildlife (WDFW) to the Bonneville Power Administration (BPA), with emphasis on identification of salient results of value to ongoing Yakima/Klickitat Fisheries Project (YKFP) planning, and (2) summarize results of research that have broader scientific relevance. This is the twelfth of a series of progress reports that address species interactions research and supplementation monitoring of fishes in response to supplementation of salmon and steelhead in the upper Yakima River basin (Hindman et al. 1991; McMichael et al. 1992; Pearsons et al. 1993; Pearsons et al. 1994; Pearsons et al. 1996; Pearsons et al. 1998, Pearsons et al. 1999, Pearsons et al. 2001a, Pearsons et al. 2001b, Pearsons et al. 2002, Pearsons et al. 2003). Journal articles and book chapters have also been published from our work (McMichael 1993; Martin et al. 1995; McMichael et al. 1997; McMichael and Pearsons 1998; McMichael et al. 1998; Pearsons and Fritts 1999; McMichael et al. 1999; McMichael et al. 1999; Pearsons and Hopley 1999; Ham and Pearsons 2000; Ham and Pearsons 2001; Amaral et al. 2001; McMichael and Pearsons 2001; Pearsons 2002, Fritts and Pearsons 2004, Pearsons et al. in press, Major et al. in press). This progress report summarizes data collected between January 1, 2003 and December 31, 2003. These data were compared to findings from previous years to identify general trends and make preliminary comparisons. Interactions between fish produced as part of the YKFP, termed target species or stocks, and other species or stocks (non-target taxa) may alter the population status of non-target species or stocks. This may occur through a variety of mechanisms, such as competition, predation, and interbreeding (Pearsons et al. 1994; Busack et al. 1997; Pearsons and Hopley 1999). Furthermore, the success of a supplementation program may be limited by strong

  8. Development of evaluation metod of flood risk in Tokyo metropolitan area

    Science.gov (United States)

    Hirano, J.; Dairaku, K.

    2012-12-01

    Flood is one of the most significant natural hazards in Japan. In particular, the Tokyo metropolitan area has been affected by several large flood disasters. Investigating potential flood risk in Tokyo metropolitan area is important for development of climate change adaptation strategy. We aim to develop a method for evaluating flood risk in Tokyo Metropolitan area by considering effect of historical land use and land cover change, socio-economic change, and climatic change. Ministry of land, infrastructure, transport and tourism in Japan published "Statistics of flood", which contains data for flood causes, number of damaged houses, area of wetted surface, and total amount of damage for each flood at small municipal level. Based on these flood data, we constructed a flood database system for Tokyo metropolitan area for the period from 1961 to 2008 by using ArcGIS software.Based on these flood data , we created flood risk curve, representing the relation ship between damage and exceedbability of flood for the period 1976-2008. Based on the flood risk cruve, we aim to evaluate potential flood risk in the Tokyo metropolitan area and clarify the cause of regional difference in flood risk at Tokyo metropolitan area by considering effect of socio-economic change and climate change

  9. Assessment of the Fishery Improvement Opportunities on the Pend Oreille River: Recommendations for Fisheries Enhancement: Final Report.

    Energy Technology Data Exchange (ETDEWEB)

    Ashe, Becky L.; Scholz, Allan T.

    1992-03-01

    This report recommends resident fish substitution projects to partially replace anadromous fish losses caused by construction of Grand Coulee and Chief Joseph Dams. These recommendations involve enhancing the resident fishery in the Pend Oreille River as a substitute for anadromous fish losses. In developing these recommendations we have intentionally attempted to minimize the impact upon the hydroelectric system and anadromous fish recovery plans. In this report we are recommending that the Northwest Power Planning Council direct Bonneville Power Administration to fund the proposed enhancement measures as resident fish substitution projects under the NPPC's Columbia Basin Fish and Wildlife Program. The Pend Oreille River, located in northeast Washington, was historically a free flowing river which supported anadromous steelhead trout and chinook salmon, and large resident cutthroat trout and bull trout. In 1939, Grand Coulee Dam eliminated the anadromous species from the river. In 1955, Box Canyon Dam was constructed, inundating resident trout habitat in the river and creating many back water and slough areas. By the late 1950's the fishery in the reservoir had changed from a quality trout fishery to a warm water fishery, supporting largemouth bass, yellow perch and rough fish (tenth, suckers, squawfish). The object of this study was to examine the existing fishery, identify fishery improvement opportunities and recommend fishery enhancement projects. Three years of baseline data were collected from the Box Canyon portion of the Pend Oreille River to assess population dynamics, growth rates, feeding habits, behavior patterns and factors limiting the fishery. Fishery improvement opportunities were identified based on the results of these data. Relative abundance surveys in the reservoir resulted in the capture of 47,415 fish during the study. The most abundant species in the reservoir were yellow perch, composing 44% of the fish captured. The perch

  10. The added value of participatory modelling in fisheries management – what has been learnt?

    DEFF Research Database (Denmark)

    Röckmann, C.; Ulrich, Clara; Dreyer, M.;

    2012-01-01

    increasing recognition that uncertainty in the numbers will remain. A lack of transparency with respect to these uncertainties can damage the credibility of science. The EU Commission's proposal for a reformed Common Fisheries Policy calls for more self-management for the fishing industry by increasing......Holders) invited fisheries stakeholders to participate in the process of framing the management problem, and to give input and evaluate the scientific models that are used to provide fisheries management advice. JAKFISH investigated various tools to assess and communicate uncertainty around fish stock assessments...... and fisheries management. Here, a synthesis is presented of the participatory work carried out in four European fishery case studies (Western Baltic herring, North Sea Nephrops, Central Baltic Herring and Mediterranean swordfish), focussing on the uncertainty tools used, the stakeholders' responses to...

  11. Evaluating disturbance on mediterranean karst areas: the example of Sardinia (Italy)

    Science.gov (United States)

    de Waele, Jo

    2009-07-01

    Evaluating the human disturbance on karst areas is a difficult task because of the complexity of these peculiar and unique environments. The human impact on karstic geo-ecosystems is increasingly important and there is an increasing need for multidisciplinary tools to assess the environmental changes in karst areas. Many disciplines, such as biology, geomorphology, hydrology and social-economical sciences are to be considered to sufficiently evaluate the impact on these intrinsically vulnerable areas. This article gives an overview of the evolution of environmental impact on karst areas of the island Sardinia (Italy). For this particular case, the most important impacts in the past 50 years are derived from the following activities, in decreasing importance: (1) mining and quarrying; (2) deforestation, agriculture and grazing; (3) building (widespread urbanisation, isolated homes, etc.) and related infrastructures (roads, sewer systems, aqueducts, waste dumps, etc.); (4) tourism; (5) military activities. To evaluate the present environmental state of these areas the Disturbance Index for Karst environments [Van Beynen and Townsend (Environ Manage 36:101-116)] is applied in a slightly modified version. Instead of considering the indicators of environmental disturbances used in the original method, this slightly modified index evaluates the disturbances causing the deterioration of the environmental attributes. In the Sardinian case study, 27 disturbances have been evaluated, giving rise to the definition of a Disturbance Index ranging between 0 (Pristine) and 1 (highly disturbed). This Disturbance Index simplifies the original KDI method, appears to adequately measure disturbance on Mediterranean karst areas and could be applied with success to other similar regions.

  12. Trust and new modes of fisheries governance

    NARCIS (Netherlands)

    Vos, de B.I.

    2011-01-01

     It is a commonplace today that many of the world’s commercial fisheries are in a state of crisis. As a response to the state of fisheries management, a large array of governance innovations has been deployed over the past two decades in many fisheries industries worldwide. In these new g

  13. Is the Dutch shrimp fishery sustainable?

    NARCIS (Netherlands)

    Welleman, H.C.; Daan, N.

    2001-01-01

    The fishery of the brown shrimp (Crangon crangon LINNEAUS 1758) is a widespread human activity in the coastal zone. Yet management of this fishery has never been implemented. The question is raised whether an uncontrolled fishery is sustainable or the conceivable ecological stress results in recruit

  14. Engineering Evaluation/Cost Analysis for the 100-N Area Ancillary Facilities and Integration Plan

    International Nuclear Information System (INIS)

    This document presents the results of an engineering evaluation/cost analysis (EE/CA) that was conducted to evaluate alternatives for addressing final disposition of contaminated buildings and structures in the 100-N Area of the Hanford Site. The Hanford Site is located in southeastern Washington State and is owned by the U.S. Government and operated by the U.S. Department of Energy, Richland Operations Office (RL). In November 1989, the 100 Area of the Hanford Site (as well as the 200, 300, and 1100 Areas) was placed on the U.S. Environmental Protection Agency's National Priorities List (NPL) under the Comprehensive Environmental Response, Compensation, and Liability Act of 1980. The 100 Area NPL includes the 100-N Area, which is in various stages of the remediation process. It has been determined by RL that hazardous substances in the 100-N Area ancillary facilities may present a potential threat to human health or the environment, and that a non-time critical removal action at these facilities is warranted. To help determine the most appropriate action, RL, in cooperation with the Washington State Department of Ecology (Ecology) and the EPA, has prepared this EE/CA. The scope of the evaluation includes the inactive contaminated ancillary facilities in the 100-N Area, the facilities residing in the buffer zone, and the Hanford Generating Plant (HGP) and the solid waste management units (SWMUs) inside HGP support facilities. The 105-N Reactor and 109-N Heat Exchange facilities are excluded from this EE/CA evaluation

  15. 黄河下游渔业生态环境调查与评价%INVESTIGATION AND EVALUATION OF THE FISHERY ECOLOGICAL ENVIRONMENT OF THE YELLOW RIVER DOWNSTREAM

    Institute of Scientific and Technical Information of China (English)

    段登选; 张明磊; 王妹; 杜兴华; 陈述江; 张金路; 刘飞

    2013-01-01

    Since 2004, seven consecutive years, the fishery ecological environments of the Yellow River downstream (Shandong segment) were surveyed. The results showed that: the inter-annual variation of the Yellow River NH4+ , NO2- , NO3- contents were not obvious; the TP contents of Upstream were increased and then decreased, estuary performance for the overall was increased; TP contents of the two stations have a clear downward trends; COD showed stable in seven years. Using the trophic state index method to evaluate the nutritional status of the lower Yellow River (Shandong), Nutritional states were moderate nutrient to eutrophication in seven years. The qualitative evaluation was good to moderate pollution.%自2004以来,对黄河下游(山东段)的渔业生态环境进行连续7年的调查,结果表明:黄河干流水体的氨氮、亚硝酸盐、硝酸盐含量的年际变化规律不明显;上游的总氮含量表现为先上升后下降,河口段则表现为总体上升;2个监测站的总磷含量都有明显下降趋势;高锰酸钾指数7年内均表现平稳.采用综合营养状态指数法评价黄河下游(山东段)的营养状态,7年内营养化状态处于中度营养到(中度)富营养.定性评价为良好~中度污染.

  16. The environment of coal mining areas and the economic evaluation of the land reclamation

    Institute of Scientific and Technical Information of China (English)

    WANG Zhi-hong; XIAO Xing-tian; HE Zhi-qiang

    2001-01-01

    The environment impact of the coal resources mining was analyzed. The method of economic evaluation for the coal mining was established to analyze lan d destruction. The opportunity cost method was used to quantitatively analyze an d estimate the economic loss of the land destruction by coal mining. At the same time, the dump land reclamation of the Yuanbaoshan Open Pit was taken as an exa mple to evaluate environmental and economical benefit with the method of economi c evaluation for the coal mining areas land reclamation.

  17. Rapid global expansion of invertebrate fisheries: trends, drivers, and ecosystem effects.

    Directory of Open Access Journals (Sweden)

    Sean C Anderson

    Full Text Available BACKGROUND: Worldwide, finfish fisheries are receiving increasing assessment and regulation, slowly leading to more sustainable exploitation and rebuilding. In their wake, invertebrate fisheries are rapidly expanding with little scientific scrutiny despite increasing socio-economic importance. METHODS AND FINDINGS: We provide the first global evaluation of the trends, drivers, and population and ecosystem consequences of invertebrate fisheries based on a global catch database in combination with taxa-specific reviews. We also develop new methodologies to quantify temporal and spatial trends in resource status and fishery development. Since 1950, global invertebrate catches have increased 6-fold with 1.5 times more countries fishing and double the taxa reported. By 2004, 34% of invertebrate fisheries were over-exploited, collapsed, or closed. New fisheries have developed increasingly rapidly, with a decrease of 6 years (3 years in time to peak from the 1950s to 1990s. Moreover, some fisheries have expanded further and further away from their driving market, encompassing a global fishery by the 1990s. 71% of taxa (53% of catches are harvested with habitat-destructive gear, and many provide important ecosystem functions including habitat, filtration, and grazing. CONCLUSIONS: Our findings suggest that invertebrate species, which form an important component of the basis of marine food webs, are increasingly exploited with limited stock and ecosystem-impact assessments, and enhanced management attention is needed to avoid negative consequences for ocean ecosystems and human well-being.

  18. Scientific, Technical and Economic Committee for Fisheries (STECF) – Opinion by written procedure – Review of scientific advice for 2013- part I – Advice on stocks in the Baltic Sea

    DEFF Research Database (Denmark)

    The scientific advice on the stocks and fisheries in the Baltic Sea in 2013 evaluated and endorsed by the Scientific, Technical and Economic Committee for Fisheries (STECF) by written procedure in June 2012 on a request by the European Commission......The scientific advice on the stocks and fisheries in the Baltic Sea in 2013 evaluated and endorsed by the Scientific, Technical and Economic Committee for Fisheries (STECF) by written procedure in June 2012 on a request by the European Commission...

  19. Criticality safety evaluation for Portsmouth X-345 High-Enriched-Uranium storage area

    Energy Technology Data Exchange (ETDEWEB)

    Koponen, B.L.

    1993-09-20

    This report evaluates nuclear criticality safety for the High-Enriched Uranium storage area of the X-345 building of the Portsmouth Gaseous Diffusion Plant. The effects of loss of moderation or mass control are examined for storage units in or out of the storage receptacles. Recommendations are made for decreasing criticality hazards under some conditions of storage or handling considered to be hazardous.

  20. Criticality safety evaluation for Portsmouth X-345 High-Enriched-Uranium storage area

    International Nuclear Information System (INIS)

    This report evaluates nuclear criticality safety for the High-Enriched Uranium storage area of the X-345 building of the Portsmouth Gaseous Diffusion Plant. The effects of loss of moderation or mass control are examined for storage units in or out of the storage receptacles. Recommendations are made for decreasing criticality hazards under some conditions of storage or handling considered to be hazardous

  1. Data sheet based countermeasure evaluation for radioactively contaminated Nordic food-producing areas

    International Nuclear Information System (INIS)

    A Nordic expert group has identified and critically evaluated the countermeasures that may potentially be implemented in connection with major nuclear accident situations contaminating Nordic food-producing areas. This paper demonstrates how the derived technical information can be applied by decision-makers to identify practicable and cost-effective means for mitigation of the impact of contamination. (au)

  2. Urban Modality: Modelling and evaluating the sustainable mobility of urban areas in the city-region

    NARCIS (Netherlands)

    Gil, J.A.

    2016-01-01

    This thesis proposes a framework for evaluating the mobility potential and performance of urban areas in the city region, as an instrument to support urban development that contributes positively to regional sustainable mobility objectives. The research takes a quantitative approach, modelling and m

  3. [Study on objectively evaluating skin aging according to areas of skin texture].

    Science.gov (United States)

    Shan, Gaixin; Gan, Ping; He, Ling; Sun, Lu; Li, Qiannan; Jiang, Zheng; He, Xiangqian

    2015-02-01

    Skin aging principles play important roles in skin disease diagnosis, the evaluation of skin cosmetic effect, forensic identification and age identification in sports competition, etc. This paper proposes a new method to evaluate the skin aging objectively and quantitatively by skin texture area. Firstly, the enlarged skin image was acquired. Then, the skin texture image was segmented by using the iterative threshold method, and the skin ridge image was extracted according to the watershed algorithm. Finally, the skin ridge areas of the skin texture were extracted. The experiment data showed that the average areas of skin ridges, of both men and women, had a good correlation with age (the correlation coefficient r of male was 0.938, and the correlation coefficient r of female was 0.922), and skin texture area and age regression curve showed that the skin texture area increased with age. Therefore, it is effective to evaluate skin aging objectively by the new method presented in this paper. PMID:25997282

  4. Evaluation of uranium geochemical anomalies in the Kings Mountain area, Charlotte 10 x 20 Quadrangle. National Uranium Resource Evaluation Program

    International Nuclear Information System (INIS)

    The Savannah River Laboratory (SRL) was involved in the National Uranium Resource Evaluation (NURE) from 1974 through 1981. The SRL role was to design, conduct, and report the data from a geochemical reconnaissance of almost half the continental United States. The purpose of the work was to provide a basis for evaluating the uranium potential of areas and to identify areas meriting conventional geologic followup. In this program, more than 275,000 samples of stream sediment, soil, vegetation, and ground or surface water were collected. As a part of the development program to support interpretation of the geochemical data, SRL evaluated a series of geochemical anomalies identified by reconnaissance data. Subcontractors were selected to conduct field scintillometer surveys, compile geologic maps, collect additional samples, or provide other services required for a given study. This report summarizes the results of a study in the Charlotte 10 x 20 quadrangle, based on data from the hydrogeochemical and stream sediment reconnaissance. The study includes a geologic report and map prepared for SRL by David E. Howell; chemical analyses of individual monazite and zircon grains from stream sediments in the study area; and analyses of three zircon grains from near Antreville, South Carolina. Normal editing of the report was not possible before the termination of the NURE program. Thus, typographical and conceptual errors that may be present have not been corrected, and the reader is cautioned to use professional judgement in interpreting the data. 29 figures, 9 tables

  5. Effects of mangrove deforestation on mangrove mud crab fishery.

    OpenAIRE

    Fondo, E.N.

    2007-01-01

    Mangrove forests support diverse animal populations of commercial importance among them mangrove is the mud crab Scylla serrata. Destruction of mangroves through deforestation, conversion into salt pans and for aquaculture has been a major concern and is likely to affect the systems the mangrove support, including crab fishery. Mud crab catches from areas with different levels of mangrove destruction in Ngomeni area, Malindi Kenya were analysed. The population structure and maturity stages of...

  6. Scientific evaluation of the remedial actions for underground sulfate reduction in the former Lausitz mining area

    International Nuclear Information System (INIS)

    In the Lausitz brown coal mining area the largest technical engineered lake region in Europe is developed (14000 ha). The water quality is negatively influenced by oxidation of the iron sulfides from the original cap rocks. Low pH values and high iron and sulfate concentrations limit the economical use of the lakes. It is assumed that an improvement of the water quality can be reached by appropriate measures. The pilot project was aimed to the reduction of sulfates in the groundwater. The project demonstrates the possibility of a combination of several processes and the transfer to large-scale experiments. The report covers the following topics: theoretical fundamentals, site conditions and the experimental facilities, hydro-geologic exploration results and geochemistry of the evaluated area, boundary conditions of the experiment evaluation, development of the water quality in the reaction area, hydro-chemical effects of the remedial actions, flow modeling, modeling of the site conditions, summary and conclusions of the project.

  7. Multi-dimensional evaluation and ranking of coastal areas using GIS and multiple criteria choice methods.

    Science.gov (United States)

    Kitsiou, Dimitra; Coccossis, Harry; Karydis, Michael

    2002-02-01

    Coastal ecosystems are increasingly threatened by short-sighted management policies that focus on human activities rather than the systems that sustain them. The early assessment of the impacts of human activities on the quality of the environment in coastal areas is important for decision-making, particularly in cases of environment/development conflicts, such as environmental degradation and saturation in tourist areas. In the present study, a methodology was developed for the multi-dimensional evaluation and ranking of coastal areas using a set of criteria and based on the combination of multiple criteria choice methods and Geographical Information Systems (GIS). The northeastern part of the island of Rhodes in the Aegean Sea, Greece was the case study area. A distinction in sub-areas was performed and they were ranked according to socio-economic and environmental parameters. The robustness of the proposed methodology was assessed using different configurations of the initial criteria and reapplication of the process. The advantages and disadvantages, as well as the usefulness of this methodology for comparing the status of coastal areas and evaluating their potential for further development based on various criteria, is further discussed. PMID:11846155

  8. Study on the theoretical evaluation of grouting area and effective porosity for fractured rock masses

    International Nuclear Information System (INIS)

    An accurate evaluation of the grouting area in fractured rock is very important for designing the grouting pitch in the field. In this study, a method of determining the effective porosity and the grouting area of a three-dimensional (3-D) fractured rock mass are described. To evaluate the validity of this method, constant injection rate experiments were carried out in the laboratory. First, an experiment was performed on a gravel ground model. Then, a second experiment was performed on an axisymmetric cubic block model with gaps between the blocks minicking fractures in rocks. The results obtained from the experiments agree well with proposed theory. The effect of gravity on high permeability fractured rock mass was also evaluated and the Hele-Shaw's seepage model was applied in explaining the laboratory results. (author)

  9. The Traceability and Safety of Fishery Products

    Directory of Open Access Journals (Sweden)

    Gheorghe Adrian ZUGRAVU

    2012-12-01

    Full Text Available The paper follows two main objectives: to understand consumers’ perception of safety trasability and quality of fishery products and to identify communication levers in order to improve the perceived image of fishery products. The present research is focused on the fishery products, regardless of their presentation – fresh, frozen or processed. This paper conducted a questionnaire survey of Romanian consumers’ perception toward fishery products. The empirical study with brands indicated that consumers are different awareness to domestic and foreign safety fish products. National fishery products got more attention from the consumers.

  10. Evaluation of the Implementation of Good Handling Practices in Food and Beverage Areas of Hotels.

    Science.gov (United States)

    Serafim, A L; Hecktheuer, L H R; Stangarlin-Fiori, L; Medeiros, L B; Martello, L; Machado, C E

    2015-11-01

    Because of the major international-level events that have recently been held in Brazil, concerns about the sensory and hygienic-sanitary conditions of food have increased. The objective of this study was to evaluate the implementation of good handling practices in food and beverage areas of hotels, with and without outsourced professional intervention. We evaluated 19 food and beverage areas in hotels in Porto Alegre, Rio do Sul, Brazil, using a checklist that was developed by a municipal surveillance team based on existing laws for good handling practices. The evaluation was done by a skilled professional in the food safety area on two occasions, at the beginning of the study (January to May 2013) and at the end (July to November 2014), and the establishments were classified as good, regular, or poor. After the baseline evaluation, an action plan listing the noncompliance found at each location was given to those responsible for the establishments, and a period of 1 year 6 months was stipulated for improvements to be made. In the repeat evaluation, those responsible for the establishments were asked whether they had hired an outsourced professional to assist them in the improvements. The hotels showed improvement during the repeat evaluation, but a significant increase in the percentage of overall adequacy was seen only in the food and beverages areas of the 12 hotels that used the intervention of an outsourced professional. The better percentage of adequacy in establishments with outsourced professional intervention underlines the importance of an external and impartial view of routine activities in the implementation of good handling practices. PMID:26555528

  11. Solving complex fisheries management problems

    DEFF Research Database (Denmark)

    Petter Johnsen, Jahn; Eliasen, Søren Qvist

    2011-01-01

    A crucial issue for the new EU common fisheries policy is how to solve the discard problem. Through a study of the institutional set up and the arrangements for solving the discard problem in Denmark, the Faroe Islands, Iceland and Norway, the article identifies the discard problem as related to...

  12. Market-Based Fisheries Management

    DEFF Research Database (Denmark)

    Høst, Jeppe Engset

    This book reveals how a privatization of fish resources has paved the way for a wide-reaching concentration and change in ownership. It is a thought-provoking contribution to the debate on the future of European fisheries and the possible solutions to overfishing in Europe. Readers will discover...

  13. RECRUITMENT AND RECRUITMENT MODELS IN FISHERY SCIENCE

    Directory of Open Access Journals (Sweden)

    Merica Slišković

    2006-04-01

    Full Text Available Recruitment and growth of individuals bring the most to enlargement of fish stock biomass. Recruitment can be independent on stock size during the development of the fishery, but experience has showed that many fisheries have come to the point when recruitment decreases due to over fishing. Large parental stock does not give large number of juveniles because large number of individuals influences survival of juveniles (competition for food. In period between 1984 and 1987 this phenomenon was recorded in sardine population in the Adriatic Sea, when large biomass of parental stock resulted in twice less recruitment. In the period between 1993 and 2000 there was no significant recruitment of the sardine population in the Adriatic Sea and it reflected on biomass of the sardine. Large recruitment was recorded in 2001 and 2002. There are numerous mathematical models which give relation between stock and recruitment. Beverton–Holt’s and Ricker’s models are usually used. Beverton–Holt’s model assumes that recruitment depends on the density of population. Ricker’s model is based on assumption that all resources are evenly distributed among the individuals; therefore the rise in density causes the exhaustion of resources. This model is suitable for species as the sardine, which migrates in the breeding area.

  14. Swedish Hard Rock Laboratory first evaluation of preinvestigations 1986-87 and target area characterization

    International Nuclear Information System (INIS)

    SKB plans to site an underground research laboratory in the Simpevarp area. A regional survey started in 1986 and an extensive programme for geology, geohydrology and hydrochemistry was carried through. This report gives an evaluation of all available data gathered from the start of the project up to the drilling of core boreholes in some target areas in the autumn of 1987. A descriptive geological-tectonic model on a regional scale is presented that is intended to constitute a basis for the hydrogeological modelling work. Preliminary rock mass descriptions are also presented on a more detailed scale for some minor parts of the area. It is recommended that the island Aespoe is the principal target area for the continued work on the Swedish Hard Rock Laboratory. (orig.)

  15. Evaluation of Land Safety Degree of the Tourist Area Based on the Land Comprehensive Bearing Capacity

    Directory of Open Access Journals (Sweden)

    Sun Chao

    2015-09-01

    Full Text Available The regional land safety evaluation indicator system is built based on the land comprehensive bearing capacity in the study and the primary and secondary relationship of the land safety obstacle factors of Mengshan tourist area and influence degree of various obstacle factors on land safety are determined, so as to provide reference for sustainable utilization of land in Mengshan tourist area. The results indicate that: (i The land comprehensive bearing capacity of Mengshan tourist area is at the safety state. Where, the social bearing capacity is at the weak safety state, which is the most critical factor influencing the land bearing capacity of Mengshan tourist area. (ii The traveling and living ratio, the output values of the secondary industry and the tertiary industry of the unit construction land and the land utilization intensity are the key factors influencing the regional safety level.

  16. Genetic evidence of local exploitation of Atlantic salmon in a coastal subsistence fishery in the Northwest Atlantic

    Science.gov (United States)

    Bradbury, Ian R.; Hamilton, Lorraine C.; Rafferty, Sara; Meerburg, David; Poole, Rebecca; Dempson, J. Brian; Robertson, Martha J.; Reddin, David G.; Bourret, Vincent; Dionne, Mélanie; Chaput, Gerald J.; Sheehan, Timothy F.; King, Tim L.; Candy, John R.; Bernatchez, Louis

    2014-01-01

    Fisheries targeting mixtures of populations risk the over utilization of minor stock constituents unless harvests are monitored and managed. We evaluated stock composition and exploitation of Atlantic salmon in a subsistence fishery in coastal Labrador, Canada using genetic mixture analysis and individual assignment with a microsatellite baseline (15 loci, 11 829 individuals, 12 regional groups) encompassing the species western Atlantic range. Bayesian and maximum likelihood mixture analyses of fishery samples over six years (2006-2011; 1 772 individuals) indicate contributions of adjacent stocks of 96-97%. Estimates of fishery associated exploitation were highest for Labrador salmon (4.2-10.6% per year) and generally exploitation and reveal complex migratory behaviours.

  17. Overview and bibliography of the literature of socio-economic relevance to the fisheries of Lake Victoria

    OpenAIRE

    Geheb, K.

    1999-01-01

    An overview is provided of the literature of socio-economic relevance to the fisheries of Lake Victoria. It covers the following areas: marketing studies; management; changes to the structure of the fishery; and, base-line studies. The bibliography provides a guide to the more important documents on Lake Victoria's socio-economy and includes a total of 177 references

  18. 76 FR 464 - Notification of U.S. Fish Quotas and an Effort Allocation in the Northwest Atlantic Fisheries...

    Science.gov (United States)

    2011-01-05

    ... Quotas and an Effort Allocation in the Northwest Atlantic Fisheries Organization (NAFO) Regulatory Area... are available for harvest by U.S. fishermen in the Northwest Atlantic Fisheries Organization (NAFO... relating to NAFO fish quotas, NAFO Conservation and Enforcement Measures, and the High Seas...

  19. Small-scale fisheries in Greenlandic planning

    DEFF Research Database (Denmark)

    Jacobsen, Rikke Becker

    2013-01-01

    coastal fishery for Greenland halibut’. Findings highlight the way the small-scale Greenland halibut fishery system becomes a particular governance problem with respect to particular contextual meanings of sustainability and long-term planning. The article then examines whether this governance problem......This article analyses an ongoing planning process in Greenlandic fisheries governance aiming to reform the coastal Greenland halibut fishery. It examines the way certain truths about this fishery and the need for reform are produced up to and in the final policy document ‘regulation concerning the...... could also be understood as primarily a problem to a certain ‘governmentality’ mode of governance. Whereas some fishery studies document how governmentality modes of governance in fisheries succeeds in transforming subjectivities, this study offers a view into the process that might go before successful...

  20. Pathogen Screening of Naturally Produced Yakima River Spring Chinook Smolts; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2001 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Pearsons, Todd N.; Thomas, Joan B. (Washington Department of Fish and Wildlife, Olympia, WA)

    2003-01-01

    The change in pathogens prevalence to wild fish is probably the least studied ecological interaction associated with hatchery operations. In 1999, the Cle Elum Hatchery began releasing spring chinook smolts into the upper Yakima River to increase natural production. Part of the evaluation of this program is to evaluate whether introduction of hatchery produced smolts would impact the prevalence of specific pathogens in the naturally produced spring chinook smolts. Increases in prevalence of any of these pathogens could negatively impact the survival of these fish. Approximately 200 smolts were collected at the Chandler smolt collection facility on the lower Yakima River during 1998, 2000 and 2001 and monitored for specific pathogens. The pathogens monitored were infectious hematopoeitic necrosis virus, infectious pancreatic necrosis virus, viral hemorrhagic septicemia, Flavobacterium psychrophilum, Flavobacterium columnare, Aeromonas salmonicida, Yersinia ruckeri, Edwardsiella ictaluri, Renibacterium salmoninarum and Myxobolus cerebralis. In addition, the fish were tested for Ceratomyxa shasta spores in 2001. Not all testing has been completed for every year, but to date, there have only been minimal changes in levels of the bacterial pathogens in the naturally produced smolts. At this point, due to the limited testing so far, these changes are attributed to normal fluctuation of prevalence.

  1. Evaluating the Vegetation Recovery in the Damage Area of Wenchuan Earthquake Using MODIS Data

    Directory of Open Access Journals (Sweden)

    Wei-Guo Jiang

    2015-07-01

    Full Text Available The catastrophic 8.0 Richter magnitude earthquake that occurred on 12 May 2008 in Wenchuan, China caused extensive damage to vegetation due to widespread landslides and debris flows. In the past five years, the Chinese government has implemented a series of measures to restore the vegetation in the severely afflicted area. How is the vegetation recovering? It is necessary and important to evaluate the vegetation recovery effect in earthquake-stricken areas. Based on MODIS NDVI data from 2005 to 2013, the vegetation damage area was extracted by the quantified threshold detection method. The vegetation recovery rate after five years following the earthquake was evaluated with respect to counties, altitude, fault zones, earthquake intensity, soil texture and vegetation types, and assessed over time. We have proposed a new method to obtain the threshold with vegetation damage quantitatively, and have concluded that: (1 The threshold with vegetation damage was 13.47%, and 62.09% of the field points were located in the extracted damaged area; (2 The total  vegetation damage area was 475,688 ha, which accounts for 14.34% of the study area and was primarily distributed in the central fault zone, the southwest mountainous areas and along rivers in the Midwest region of the study area; (3 Vegetation recovery in the damaged area was better in the northeast regions of the study area, and in the western portion of the Wenchuan-Maoxian fracture; vegetation recovery was better with increasing altitude; there is no obvious relationship between clay content in the topsoil and vegetation recovery; (4 Meadows recovered best and the worst recovery was in mixed coniferous broad-leaved forest; (5 81,338 ha of vegetation in the damage area is currently undergoing degradation and the main vegetation types in the degradation area are coniferous forest (31.39% and scrub (34.17%; (6 From 2009 to 2013, 41% has been restored to the level before the earthquake, 9% has not

  2. High resolution tsunami modelling for the evaluation of potential risk areas in Setúbal (Portugal

    Directory of Open Access Journals (Sweden)

    J. Ribeiro

    2011-08-01

    Full Text Available The use of high resolution hydrodynamic modelling to simulate the potential effects of tsunami events can provide relevant information about the most probable inundation areas. Moreover, the consideration of complementary data such as the type of buildings, location of priority equipment, type of roads, enables mapping of the most vulnerable zones, computing of the expected damage on man-made structures, constrain of the definition of rescue areas and escape routes, adaptation of emergency plans and proper evaluation of the vulnerability associated with different areas and/or equipment.

    Such an approach was used to evaluate the specific risks associated with a potential occurrence of a tsunami event in the region of Setúbal (Portugal, which was one of the areas most seriously affected by the 1755 tsunami.

    In order to perform an evaluation of the hazard associated with the occurrence of a similar event, high resolution wave propagation simulations were performed considering different potential earthquake sources with different magnitudes. Based on these simulations, detailed inundation maps associated with the different events were produced. These results were combined with the available information on the vulnerability of the local infrastructures (building types, roads and streets characteristics, priority buildings in order to impose restrictions in the production of high-scale potential damage maps, escape routes and emergency routes maps.

  3. Evaluation of dredged material proposed for ocean disposal from Westchester Creek project area, New York

    Energy Technology Data Exchange (ETDEWEB)

    Pinza, M.R.; Gardiner, W.W.; Barrows, E.S.; Borde, A.B.

    1996-11-01

    The objective of the Westchester Creek project was to evaluate proposed dredged material from this area to determine its suitability for unconfined ocean disposal at the Mud Dump Site. Westchester Creek was one of five waterways that the US Army Corps of Engineers- New York District (USACE-NYD) requested the Battelle/Marine Sciences Laboratory (MSL) to sample and evaluate for dredging and disposal in May 1995. The evaluation of proposed dredged material from the Westchester Creek project area consisted of bulk sediment chemical analyses, chemical analyses of dredging site water and elutriate, benthic acute and water-column toxicity tests, and bioaccumulation studies. Thirteen individual sediment core samples were collected from this area and analyzed for grain size, moisture content, and total organic carbon (TOC). One composite sediment sample representing the Westchester Creek area to be dredged, was analyzed for bulk density, specific gravity, metals, chlorinated pesticides, polychlorinated biphenyl (PCB) congeners, polynuclear aromatic hydrocarbons (PAHs), and 1,4-dichlorobenzene. Dredging site water and elutriate water, which is prepared from the suspended- particulate phase (SPP) of the Westchester Creek sediment composite, was analyzed for metals, pesticides, and PCBS.

  4. Evaluation of bacterial nanocellulose-based uniform wound dressing for large area skin transplantation

    Energy Technology Data Exchange (ETDEWEB)

    Fu, Lina [Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074 (China); National Engineering Research Center for Nano-Medicine, Huazhong University of Science and Technology, Wuhan 430074 (China); Zhou, Ping [Institute of Organ Transplant of Tongji Hospital, Huazhong University of Science and Technology, Wuhan (China); Zhang, Shengmin [Advanced Biomaterials and Tissue Engineering Center, Huazhong University of Science and Technology, Wuhan (China); Yang, Guang, E-mail: yang_sunny@yahoo.com [Department of Biomedical Engineering, College of Life Science and Technology, Huazhong University of Science and Technology, Wuhan 430074 (China); National Engineering Research Center for Nano-Medicine, Huazhong University of Science and Technology, Wuhan 430074 (China)

    2013-07-01

    Bacterial nanocellulose (BNC) was biosynthesized by Gluconacetobacter xylinus. The surface area, physicochemical structure and morphology of the materials were characterized. Here provides a method for an efficient production of uniform BNC, which is beneficial for the fast characterization and evaluation of BNC. In vitro cytotoxicity of the materials was evaluated by the proliferation, the adhesion, the viability and the morphology of NIH/3T3 cells. Low cytotoxicity of the BNC was observed, and micrographs demonstrate a good proliferation and adhesion of NIH/3T3 cells on BNC. Large area full-thickness skin defects were made on the back of C57BL/6 mice in animal surgery. The wounds were transplanted with BNC films and the results compared to those in a control group. The rehabilitation of the wound surfaces and the pathological sections of mice were investigated and are discussed. Histological examinations demonstrated faster and better healing effect and lower inflammatory response in the BNC group than those in the control group. Preliminary results on wound dressings from BNC show a curative effect promoting the healing of epithelial tissue. BNC is a promising natural polymer with medical applications in wound dressings. - Highlights: • BNC is expected to be a promising material in wound healing and skin transplantation. • We studied surface area, physicochemical structures and morphology of uniform BNC. • Cyto-evaluation results of BNC-based wound dressing show a good biocompatibility. • Large area skin transplantation experiments suggest a good performance of healing.

  5. Evaluation of bacterial nanocellulose-based uniform wound dressing for large area skin transplantation

    International Nuclear Information System (INIS)

    Bacterial nanocellulose (BNC) was biosynthesized by Gluconacetobacter xylinus. The surface area, physicochemical structure and morphology of the materials were characterized. Here provides a method for an efficient production of uniform BNC, which is beneficial for the fast characterization and evaluation of BNC. In vitro cytotoxicity of the materials was evaluated by the proliferation, the adhesion, the viability and the morphology of NIH/3T3 cells. Low cytotoxicity of the BNC was observed, and micrographs demonstrate a good proliferation and adhesion of NIH/3T3 cells on BNC. Large area full-thickness skin defects were made on the back of C57BL/6 mice in animal surgery. The wounds were transplanted with BNC films and the results compared to those in a control group. The rehabilitation of the wound surfaces and the pathological sections of mice were investigated and are discussed. Histological examinations demonstrated faster and better healing effect and lower inflammatory response in the BNC group than those in the control group. Preliminary results on wound dressings from BNC show a curative effect promoting the healing of epithelial tissue. BNC is a promising natural polymer with medical applications in wound dressings. - Highlights: • BNC is expected to be a promising material in wound healing and skin transplantation. • We studied surface area, physicochemical structures and morphology of uniform BNC. • Cyto-evaluation results of BNC-based wound dressing show a good biocompatibility. • Large area skin transplantation experiments suggest a good performance of healing

  6. Evaluating U.S. National Heritage Areas: Theory, Methods, and Application

    Science.gov (United States)

    Laven, Daniel; Ventriss, Curtis; Manning, Robert; Mitchell, Nora

    2010-08-01

    Like many governmental actors in recent decades, the U.S. National Park Service (NPS) has operated increasingly through partnerships with other state and federal agencies, non-governmental organizations (NGOs), community groups, and private sector corporations. Perhaps the most salient example of this trend toward partnerships is the rapid growth and development of national heritage areas (NHAs). Since the first NHA received congressional designation in 1984, NHAs have become an increasingly popular strategy for protecting and managing landscapes. To date, congressional designation has been granted to 49 NHAs, making them one of the fastest growing initiatives involving the NPS. Despite this growth, no prior research has examined the efficacy or effectiveness of the NHA model. This article introduces the NHA concept, while reviewing the literature on evaluation research and its application to protected area management. We then offer an NHA program theory model for evaluating NHAs. The model was developed using a theory-based, process evaluation approach, along with 90 qualitative interviews conducted at three study sites: Blackstone River Valley National Heritage Corridor, MA-RI (BLAC); Delaware and Lehigh National Heritage Corridor, PA (DELE); and Cane River National Heritage Area, LA (CANE). We conclude by discussing the key challenges and implications associated with developing a long-term research agenda for evaluating NHAs.

  7. Portuguese commercial fisheries of swordfish, Xiphias gladius

    Directory of Open Access Journals (Sweden)

    André Roxo Nunes

    2014-05-01

    Full Text Available Swordfish has an important role in Portuguese fisheries. Portuguese commercial swordfish landings were analyzed from 1986 to 2012. Commercial landings of five incidental catches of pelagic sharks (Alopias superciliosus, Alopias vulpinus, Isurus oxyrinchus, Prionace glauca and Sphryna zygaena were also evaluated for the same period. A total of 3.653 landings of swordfish (12.625 t were observed in 62 ports. Annual landings for the fishery generally decreased over time, with a corresponding increase in price per kilogram. The most fished shark was blue shark with 12.715 t in 48 ports. It was followed by shortfin mako, thresher, smooth hammerhead and bigeye thresher (with 5.113 t, 672 t, 19 t and 0,45 t, respectively. The lowest landings of swordfish were observed in the first semester of each years while catch levels of blue sharks were high. Shortfin mako catches raised only since 2005. The remaining species studies always displayed lower landings, suggesting that most of them are bycaught.

  8. Re-evaluation of the effectiveness of the central A/M Area recovery well network

    International Nuclear Information System (INIS)

    A groundwater recovery well network has been operating in the central portion of the A/M Area of the Savannah River Site (SRS) since 1985 to retrieve chlorinated volatile organic solvents. In 1986, a groundwater modeling study was performed to evaluate the effectiveness of the recovery well network that included planned recovery wells (RWM 1 through 11) and process water wells (S. S. Papadopulous, 1986). Since the original modeling study, use of some of the process wells has discontinued and some pumping rates at other wells have changed. Also, the understanding of the hydrologic system in the A/M Area has improved because additional monitoring wells have been installed in the area. As a result, an updated groundwater flow model (Beaudoin et al., 1991) for the area was used to evaluate the effectiveness of the existing recovery network. The results of this study indicate that the estimated effectiveness of the recovery well has not changed dramatically since the original groundwater modeling study. However, slight differences do exist between the original study and this study because the recent model more accurately reflects the A/M Area subsurface hydrologic system

  9. GIS-Based Multicriteria Evaluation Approach in Planning Tourism Development Sites in Environmentally Sensitive Areas

    Directory of Open Access Journals (Sweden)

    Harun Norhidayah

    2016-01-01

    Full Text Available Multicriteria evaluation approach has become useful mechanism in selecting choice possibilities based on number of alternatives. This approach has become useful for planners and engineers especially when dealing with allocating suitable sites for tourism development, which has often being undertaken within environmentally sensitive areas. Taking Langkawi Island, which has pristine natural resources, as example, this study demonstrates the usage of GIS-based multicriteria evaluation approach in identifying environmentally sensitive areas to be protected and conserved in planning for tourism development. Criteria used for determining ESA included coastline, topography, natural resources and forest, and tourism sites. Soft-information gathered through interviews with 3 different stakeholders/experts namely engineer, environmental officer and planner, to calculate weights for each criteria mentioned above. The study found that new built-up area shall only be confined within existing urban area namely Kuah area in order to ensure ESA and tourism sites to be protected and conserved. GIS-based MCE approach provides systematic mechanism where soft information can also contribute towards planning for tourism development as well as safeguarding the environment.

  10. An evaluation of monk parakeet damage to crops in the metropolitan area of Barcelona

    OpenAIRE

    Senar, J. C.; Domènech, J.; L. Arroyo; Torre, I.; Gordo, O.

    2016-01-01

    We evaluated damage to commercial crops caused by the monk parakeet, Myiopsitta monachus, in the Baix Llobregat agricultural area (1,024 ha) bordering the city of Barcelona, Spain. Average crop loss was 0.4% for tomatoes, 28% for corn, 9% for red plums, 36% for round plums, 37% for pears, 17% for persimmons, and 7% for quinces. Our data show that the potential damage to crops by monk parakeets in this invaded area is now a reality. As a wait–and–see approach is likely to be a more costly stra...

  11. Evaluation of growth characteristics of selected woody plant taxons in the example of the CULS area

    OpenAIRE

    Plechingerová, Vlasta

    2013-01-01

    This work deals "Evaluation of the growth characteristics of the selected woody plant taxons in the example of the CULS area" The goal was to monitor and to measure trees increases in an exact period and assess their demands for climatic and soil conditions. The model territory called the Libosad lies in area of approximately 2.17 hectares and is divided into two parts. The first part is planted with the deciduous trees and the conifers in the second part. Before the planting it was placed...

  12. Solar-Powered Compaction Garbage Bins in Public Areas: A Preliminary Economic and Environmental Evaluation

    Directory of Open Access Journals (Sweden)

    Long Duc Nghiem

    2010-02-01

    Full Text Available An excel-based model was developed to evaluate economic and environmental benefits of the solar-powered compaction garbage bins in public areas in Australia. Input data were collected from Brisbane and Wollongong City councils, and Sydney Olympic Park. The results demonstrate that solar-powered compaction garbage bins would provide environmental benefits in all scenarios. However, results of the economic analysis of the three studied areas varied significantly. The unique situation of Sydney Olympic Park made implementation in that facility particularly appealing. A lower monthly rental cost is needed for the implementation of this novel waste management practice.

  13. General Description of Oak Ridge Site and Surrounding Areas - Hazards Evaluation, Vol. 2

    Energy Technology Data Exchange (ETDEWEB)

    Struxness, E. G. [ORNL

    1962-08-21

    Purposeful or accidental releases of radioactive materials to the immediate environs of ORNL and surrounding areas have been examined. Evaluation of the consequences of releases requires rather detailed knowledge of the atmosphere, the hydrosphere, and the Iithosphere. By various means the vulnerability of the area to concentrated radioactive fallout or to radioactive Iiquids released onto or into the terrain and water courses must be determined. Factual data are provided, and an attempt has been made to relate these to the control of radioactive contamination .

  14. Contemporary management issues confronting fisheries science

    Science.gov (United States)

    Frank, Kenneth T.; Brickman, David

    2001-06-01

    Stock collapses have occurred worldwide. The most frequently cited cause is over-fishing, suggesting that fisheries management has been ineffective in controlling exploitation rates. The progression of a fishery from an over-exploited to a collapsed state involves impairment of the reproductive capacity of the target species, i.e. recruitment over-fishing. In many cases, this occurs by reduction of the spawning stock biomass (SSB) through the systematic elimination of spawning components within a stock complex. While operational definitions of minimum levels of SSB have been developed, they have seldom been applied and never adopted in a Canadian groundfish management context. The answer to the question of how much is enough to perpetuate a stock under exploitation has been illusive. Serebryakov [J. Cons. Int. Explor. Mer, 47 (1990) 267] has advocated definition of critical levels of SSB based on survival rates (R/SSB). We review his method and discuss the utility of the approach. An alternative approach to the problem of estimating minimum SSB is through a fundamental revision of the traditional stock and recruitment relationship. Explicit theoretical SSB thresholds below which reproduction/recruitment is severely impaired based upon density-dependent mating success (or Allee effects) is considered a superior approach to the question of how much is enough because of its ecological grounding. However, the successful application of this approach will require re-definition of the space/time scales of the management unit. Finally, support is growing for the establishment of closed areas or "no-take zones" as an alternative approach to managing the problems of fishing a stock complex by enabling sub-populations to escape fishing. While the expected benefits of areas protected from fishing are numerous, clear demonstrations of benefits of such areas in marine temperate ecosystems are lacking. In fact, unintended negative consequences may result from such actions.

  15. Comparing the Reproductive Success of Yakima River Hatchery- and Wild-Origin Spring Chinook; Yakima/Klickitat Fisheries Project Monitoring and Evaluation, 2005-2006 Annual Report.

    Energy Technology Data Exchange (ETDEWEB)

    Schroder, S.L.; Pearsons, T.N. (Washington Department of Fish and Wildlife, Olympia, WA); Knudsen, C.M. (Oncorh Consulting, Olympia, WA)

    2006-05-01

    Reproductive success in wild- and first generation hatchery-origin spring Chinook males was examined by allowing the fish to compete for spawning opportunities in two sections of an observation stream. Behavioral observations were used to characterize the frequency of aggression and courting activities. Microsatellite DNA from each male and fry collected from the observation stream were used in pedigree analyses to estimate reproductive success. The coefficient of variation in male reproductive success equaled 116 and 86% in the two populations. No differences were detected in reproductive success due to hatchery or wild origin. Nor were any behavioral differences found between hatchery and wild males. Although statistical power was low due to intrinsic variation a great deal of overlap existed in the reproductive success values of hatchery and wild males. Significant disparities existed among the males on their ability to produce offspring. Males achieving high reproductive success mated with numerous females, were socially dominant, aggressive, and tended to stay in localized areas, courting and spawning with females that were adjacent to one another.

  16. A quantitative evaluation of the conservation umbrella of spotted owl management areas in the Sierra Nevada.

    Science.gov (United States)

    Burnett, Ryan D; Roberts, L Jay

    2015-01-01

    Whether by design or default, single species management often serves as an umbrella for species with similar habitat requirements. In recent decades the focus of National Forest management in the Sierra Nevada of California has shifted towards increasing closed canopy mature forest conditions through the protection of areas occupied by the California Spotted Owl (Strix occidentalis occidentalis). To evaluate the implications of these habitat changes and the potential umbrella resulting from a system of owl reserves on the broader avian community, we estimated occupancy of birds inside and outside of Spotted Owl Home Range Core Areas in northeastern California. We used point count data in a multi-species hierarchical Bayesian model incorporating the detection history of 81 species over a two-year time period (2005-2006). A small set of vegetation cover and topography covariates were included in the model to account for broad differences in habitat conditions, as well as a term identifying whether or not a site was within a Core Area. Seventeen species had a negative Core Area effect, seven had a positive effect, and the rest were not significant. Estimated species richness was significantly different with 23.1 species per 100 m radius circle outside Core Areas and 21.7 inside Core Areas. The majority of the species negatively associated with Core Areas are tied to early successional and other disturbance-dependent habitats. Conservation and climate vulnerability rankings were mixed. On average we found higher scores (greater risk) for the species positively associated with Core Areas, but a larger number of species with the highest scores were negatively associated with Core Areas. We discuss the implications for managing the Sierra Nevada ecosystem and illustrate the role of monitoring broader suites of species in guiding management of large complex ecosystems. PMID:25905920

  17. A quantitative evaluation of the conservation umbrella of spotted owl management areas in the Sierra Nevada.

    Directory of Open Access Journals (Sweden)

    Ryan D Burnett

    Full Text Available Whether by design or default, single species management often serves as an umbrella for species with similar habitat requirements. In recent decades the focus of National Forest management in the Sierra Nevada of California has shifted towards increasing closed canopy mature forest conditions through the protection of areas occupied by the California Spotted Owl (Strix occidentalis occidentalis. To evaluate the implications of these habitat changes and the potential umbrella resulting from a system of owl reserves on the broader avian community, we estimated occupancy of birds inside and outside of Spotted Owl Home Range Core Areas in northeastern California. We used point count data in a multi-species hierarchical Bayesian model incorporating the detection history of 81 species over a two-year time period (2005-2006. A small set of vegetation cover and topography covariates were included in the model to account for broad differences in habitat conditions, as well as a term identifying whether or not a site was within a Core Area. Seventeen species had a negative Core Area effect, seven had a positive effect, and the rest were not significant. Estimated species richness was significantly different with 23.1 species per 100 m radius circle outside Core Areas and 21.7 inside Core Areas. The majority of the species negatively associated with Core Areas are tied to early successional and other disturbance-dependent habitats. Conservation and climate vulnerability rankings were mixed. On average we found higher scores (greater risk for the species positively associated with Core Areas, but a larger number of species with the highest scores were negatively associated with Core Areas. We discuss the implications for managing the Sierra Nevada ecosystem and illustrate the role of monitoring broader suites of species in guiding management of large complex ecosystems.

  18. CROATIAN FRESHWATER FISHERIES IN 1996.

    Directory of Open Access Journals (Sweden)

    Mirko Turk

    1997-07-01

    Full Text Available Data on the production and fish catch according to species, on the surface of the fish ponds, on the means of fish catching and on the distribution of the production and the catch in 1996 is presented. The surface area used for production of fish has decreased by 1357 ha or 11.99%. The total fish amount has decreased by 1,921.00 tons or 29.76%. The feeding coefficient is 4 kg (33.33% bigger compared to the previous year. The amount of the fertilizer used has decreased by 18.79%. The fry carp growing ponds make up 5.99% of the total fish pond surfaces, the young carp ponds 21.13%, and the ponds with consumption fish 71.53%. The total fish amount in the carp ponds was 376 kg/ha, and in the trout ponds it was 146.6 tons/ha. The most produced fish species is the carp with 82.21 %, followed by the trout with 8.57%, the herbivorous fish with 4.78%, while all the other fish species make up 4.44% of the entire production. In the structure of herbivorous fish the grass carp is leading with 64,28%, followed by the big head carp with 26.02% and the silver carp with 9.70%. Compared to the previous year the production of the trout and tench has somewhat increased, while the production of all the other species of fish has decreased. Fish catch in open waters has increased by 19.23% in comparison to the previous year. In the production and catch of the total freshwater fish, carp made up 77.46%, the herbivorous fish made up 4.32%, trout 4.32%, sheat fish, pike perch and pike 2.99% and all other fish species 7.36%. As far as the distribution of production and catch is concerned, 46.91% were sold on the market, 39.19% were used for reproduction (stocking the fish farms, mortalities were 6.23%, and for personal use (sports fishing 7.67% was used. The number of fisheries workers has decreased by 17.75%, and the production per worker has also decreased by 26.62%, compared to the previous year. Average production per worker was 5.87 tons of fish.

  19. CROATIAN FRESHWATER FISHERIES IN 1997

    Directory of Open Access Journals (Sweden)

    Mirko Turk

    1998-10-01

    Full Text Available Data on the production and fish catch according to species, on the surface of the fish ponds, on the means of fish catching and on the distribution of the production and the catch in 1997 is presented. The surface area used for production of fish has decreased for 836 ha or 8.40%. The total fish amount was bigger for 477 tons, or 10,52%. The feeding coefficient is 2.6 kg decreased 35% for in comparison to the bigger compared to the previous year. The amount of the fertilizer used is bigger for 37.30%. The fry carp growing ponds make up 6.50% of the total fish pond surfaces, the young carp ponds 22.04/0, and the ponds with consumption fish 70.31%. The total amount in the carp ponds was 446 kg/ha, and in the trout ponds it was 160.8 tons/ha. The most produced fish species is the carp with 79.32%, followed by the trout with 11.50%, the herbivorous fish with 4.25%, while all the other fish species make up 4.93% of the entire production. In the structure of herbivorous fish the grass carp is leading with 69,23%, followed by the big head carp with 29.74% and the silver carp with 1.03%. Compared to the previous year the production of the carp, grass carp and tench is increased. Fish catch in open waters has decreased by 5.53% in comparison to the previous year. In the production and catch of the total freshwater fish, carp made up 75.34%, herbivorous fish made up 3.89%, trout 10.66%, sheat fish, pike perch and pike 2.70% and all other fish species 7.41%. As far as the distribution of production and catch of fish is concerned, 52,80% were sold on the market, 37.94% were used for reproduction (stocking the fish farms, mortality was 1.43%, and for personal use (sports fishing 7.83%. The number of fisheries workers has decreased for 8.17%, and the production per worker is bigger for 22.25%, compared to the previous year. Average production per worker was 7.17% tons of fish.

  20. The Evaluation of Unincorporated Areas – Particularities and Perspectives on the Real Estate Market

    Directory of Open Access Journals (Sweden)

    Madalina Beldiman

    2016-07-01

    Full Text Available The real estate market in Romania occupies an important position within the national economy, with the results in the real estate field having a significant impact on the determination of the macroeconomic indicators� values. We can consider that within each economy, the real estate market represents a complex sector, due to the high volume of carried out transactions and to the high number of individuals that take part in the carrying out of the transactions. The importance of area evaluation is guaranteed by the high number of its practical applications. The information provided by the evaluator is used by judicial institutions as a basis for various decision making processes.