Sample records for ESCAMAS DE PECES (fish scales)
from WorldWideScience.org

Sample records 1 - 20 shown. Select sample records:



5

Sublethal toxicity of the Prestige oil spill on yellow-legged gulls

Alonso-Álvarez, Carlos; Munilla, Ignacio; López-Alonso, Marta; Velando, Alberto
2007-08-01

Digital.CSIC (Spain)

7

Small-scale distribution of fish larvae around the Medes Islands marine protected area (NW Mediterranean)

López-Sanz, Ángel; Vert, Neus; Zabala Iturriagagortia, Jon Mikel; Sabatés, Ana
2009-04-09

Digital.CSIC (Spain)

9

Quantifying effects of fishing on marine trophic webs

Libralato, Simone; Coll, Marta; Tudela, Sergi; Palomera, Isabel; Pranovi, Fabio
2006-01-01

Digital.CSIC (Spain)

10

Preservación y abundancia de escamas de peces en sedimentos del margen continental de Chile (21-36° S)/ Fish scale preservation and abundance in sediments from the continental margin off Chile (21-36° S)

DÍAZ-OCHOA, JAVIER A; LANGE, CARINA B; DE LANGE, GERT J
2008-12-01

Resumen en español Con el objetivo de evaluar la relación entre la preservación de escamas de peces y las variaciones en las condiciones redox en sedimentos del margen continental de Chile, este trabajo presenta recuentos de escamas de peces y concentraciones normalizadas de elementos redox sensibles (Mo/Al, S/Al, Fe/Al) en ocho testigos de sedimento recolectados en la zona de minimo oxígeno frente a Chile (Iquique: 20°15' S, bahía de Mejillones: 23° S y Concepción: 36° S). En el no (mas) rte de Chile (Iquique y Mejillones) predominan las escamas de anchoveta (Engraulis ringens) y de peces de la familia Myctophidae (media = 90 y 120 escamas 1.000 cm-3, respectivamente) mientras que en Chile centro-sur (Concepción) son más abundantes las escamas de jurel (Trachurus murphy; media = 140 escamas 1.000 cm-3). La abundancia de escamas de merluza común (Merluccius gayi gayi) y de sardina (Sardinops sagax) es aproximadamente un orden de magnitud más baja que la de anchoveta o jurel. En general, los valores más altos y los rangos más amplios de variación en las razones Mo/Al, S/Al y Fe/Al se encuentran en Mejillones (Mo/Al ~0,8-12 mg g-1, S/Al 0,2-4,6 g g-1, Fe/Al 0,3-0,7 g g-1) seguidos por Iquique (Mo/Al -0,2-1,8; S/Al 0,2-0,7, Fe/Al 0,5-0,8), mientras que Concepción revela valores más bajos y poco variables (Mo/Al ~0,07, S/Al ~0,15 y Fe/Al ~0,5). La razón Mo/Al, utilizada como indicador de paleo-oxigenación, permite inferir condiciones reductoras relativamente más intensas en los sedimentos de la Bahía de Mejillones e Iquique que en Concepción. En las tres localidades de muestreo se evidencia una asociación estadísticamente significativa entre la abundancia de escamas de anchoveta y el logaritmo de la razón Mo/Al (r²= 0,46; P 1 mg g-1 Resumen en inglés The relationship between fish scale preservation and variations in the sediment redox conditions on Chile's continental shelf are evaluated herein through fish scale counts and normalized concentrations of redox sensitive elements (Mo/Al, S/Al, Fe/Al) using eight sediment cores taken from sites under the influence of the oxygen minimum zone off Chile (Iquique: 20°15' S, Mejillones Bay: 23° S, Concepción: 36° S). Off northern Chile (Iquique and Mejillones), fish scales (mas) from anchovy (Engraulis ringens) and the Myctophidae family are dominant (mean = 90 and 120 scales 1,000 cm-3, respectively), whereas off central-southern Chile (Concepción), jack mackerel (Trachurus murphy) scales are the most abundant (mean = 140 scales 1,000 cm-3). The abundance of hake (Merluccius gayi gayi) and sardine (Sardinops sagax) scales is approximately one order of magnitude lower than that of anchovy or jack mackerel. In general, the highest valúes and widest ranges of variation in the Mo/Al, S/Al, and Fe/Al ratios are found in Mejillones (Mo/Al ~ 0.8-12 mg g-1, S/Al 0.2-4.6 g g-1, Fe/Al 0.3-0.7 g g-1), followed by Iquique (Mo/Al ~ 0.2-1.8, S/Al 0.2-0.7, Fe/Al 0.5-0.8); Concepción has lower, less variable valúes (Mo/Al ~ 0.07, S/Al ~ 0.15, Fe/Al ~ 0.5). According to the Mo/Al ratio, used as an indicator of paleo-oxygenation, reducing conditions in the Mejillones Bay and Iquique sediments are relatively more intense than in those off Concepción. At all three sampling sites, the relationship between the abundance of anchovy scales and the logarithm of the Mo/Al ratio is statistically significant (r² = 0.46, P 1 mg g-1

Scientific Electronic Library Online (Spanish)

11

Physical and biological processes controlling the distribution of fish larvae in the NW Mediterranean

Sabatés, Ana; Olivar, M. Pilar; Salat, Jordi; Palomera, Isabel; Alemany, Francesc
2007-10-01

Digital.CSIC (Spain)

12

Physical and biological processes controlling the distribution of fish larvae in the NW Mediterranean

Sabatés, Ana; Olivar, M. Pilar; Salat, Jordi; Palomera, Isabel; Alemany, Francesc
2007-04-30

Digital.CSIC (Spain)

13

Patterns of bathymetric distribution among deep-sea fauna at local spatial scale: comparison of mainland vs. insular areas

Cartes, Joan Enric; Maynou, Francesc; Moranta, Joan; Massutí, Enric; Lloris, Domingo; Morales-Nin, Beatriz
2004-01-01

Digital.CSIC (Spain)

14

Otolith shape contour analysis using affine transformation invariant wavelet transforms and curvature scale space representation

Parisi-Baradad, Vicenç; Lombarte, Antoni; García-Ladona, Emilio; Cabestany, J.; Piera, Jaume; Chic, Óscar
2005-01-01

Digital.CSIC (Spain)

15

Novel index for quantification of ecosystem effects of fishing as removal of secondary production

Libralato, Simone; Coll, Marta; Tudela, Sergi; Palomera, Isabel; Pranovi, Fabio
2008-02-26

Digital.CSIC (Spain)

16

New species of the genus Chondrostoma Agassiz, 1832 (Actynopterigii, Cyprinidae) from western Portugal

Robalo, J. I.; Almada, V. C.; Sousa Santos, C.; Moreira, M. I.; Doadrio Villarejo, Ignacio
2005-06-30

Digital.CSIC (Spain)

17

New Local-scale hydrographic observation on the Flemish Cap in July 1996

Cerviño López, Santiago; Prego Reboredo, Ricardo Francisco J.
1999-01-01

Digital.CSIC (Spain)

18

Modelling small-scale coastal fisheries of Galicia (NW Spain) based on data obtained from fisheries: the case of Sepia officinalis

Rocha, Francisco J.; Otero, Jaime; Outeiral, Raquel; González, Ángel F.; Gracia, Joaquín
2006-12-30

Digital.CSIC (Spain)

19

Modeling artisanal coastal fisheries of Galicia (NW Spain) based on data obtained from fishers: the case of Octopus vulgaris

Otero, Jaime; Rocha, Francisco J.; González, Ángel F.; Gracia, Joaquín; Guerra, Ángel
2005-01-01

Digital.CSIC (Spain)

20

Meso-scale variability of coastal suprabenthic communities in the southern Tyrrhenian Sea (western Mediterranean)

Fanelli, Emmanuela; Cartes, Joan Cartes; Badalamenti, F.; D’Anna, G.; Pipitone, C.; Azzurro, Ernesto; Rumolo, P.; Sprovieri, M.
2011-02-01

Digital.CSIC (Spain)

25

Induction of gynogenesis in the turbot (Scophthalmus maximus): Effects of UV irradiation on sperm motility, the Hertwig effect and viability during the first 6 months of age

Piferrer, Francesc; Cal, Rosa M.; Gómez, Castora; Álvarez-Blázquez, Blanca; Castro, Jaime; Martı́nez, Paulino
2004-06-24

Digital.CSIC (Spain)

29

Growth of common octopus (Octopus vulgaris) in cages suspended from rafts

Chapela, Albert; González, Ángel F.; Dawe, Earl G.; Rocha, Francisco J.; Guerra, Ángel
2006-03-30

Digital.CSIC (Spain)

31

Fishery Discards Impact on Seabird Movement Patterns at Regional Scalese

Bartumeus, Frederic; Giuggioli, Luca; Louzao, Maite; Bretagnolle, Vincent; Oro, Daniel; Levin, Simon A.
2010-01-01

Digital.CSIC (Spain)

32

Feeding guilds of western Mediterranean demersal fish and crustaceans: an analysis based in a spring survey

Abelló, Pere; Lloris, Domingo; Carbonell, Aina; Torres, Pedro; Maynou, Francesc; Gil de Sola, Luis; Cartes, Joan Enric
2002-01-01

Digital.CSIC (Spain)

33

Especie nueva del género Bryconamericus (Teleostei: Characidae) del río Fonce, sistema río Magdalena, Colombia/ A new fish species of the genus Bryconamericus (Teleostei: Characidae) from the Fonce river, Magdalena Basin, Colombia

Román-Valencia, César; Vanegas-Ríos, James. A.; Ruiz-C., Raquel I.
2009-08-01

Resumen en español Se describe una especie nueva del género Bryconamericus Eigenmann, 1907 de la cuenca río Fonce, sistema río Magdalena, Colombia. La especie se distingue de sus congéneres por el número de radios anteriores de la aleta anal cubiertos por una hilera de escamas (4-11 vs. 11-26, excepto de B. orinocoense Román-Valencia 2003, de la cual se distingue por el mayor número de radios ramificados en la aleta anal 19-26 vs. 16-17) y de escamas en la línea lateral (39-45 vs. 3 (mas) 1-32); en machos, por un número reducido de espinas sobre los radios en las aletas (anal 2-10 vs. 9-23, pélvicas 2-9 vs. 8-20, pectorales 2-6 vs. 9-28 y dorsal 3-6 vs. 6-18). Se suministran datos ecológicos del hábitat del nuevo taxon y una clave taxonómica para las especies de la cuenca de los ríos Cauca-Magdalena, Sinú y Ranchería. Resumen en inglés A new fish species of Bryconamericus Eigenmann 1907 is described from the Fonce river, Magdalena Basin of Colombia. The species can be distinguished from all congeners by the number of anterior anal fin rays covered by a scales row (4-11 vs.11-26, except B. orinocoense Román-Valencia 2003 with 1-6, from which is distinguished by the higher number of branched anal fin rays 19 -26 vs. 16-17) and lateral line scales (39-45 vs.31-32); in males, by the spines number on each f (mas) ins rays (anal 2-10 vs. 9-23, pelvic 2-9 vs. 8-20, pectorals 2-6 vs.9-28 and dorsal 3-6 vs. 6-18). Ecological data of the aquatic habitat of the new taxon are presented and a key to species of Bryconamericus from Cauca-Magdalena, Sinú and Ranchería rivers in Colombia is provided.

Scientific Electronic Library Online (Spanish)

34

Environmental influences on zooplankton and micronekton distribution in the Bransfield Strait and adjacent waters

Catalán, Ignacio Alberto; Morales-Nin, Beatriz; Company, Joan B.; Rotllant, Guiomar; Palomera, Isabel; Emelianov, Mikhail
2008-01-25

Digital.CSIC (Spain)

35

Ecosystem Overfishing in the Ocean

Coll, Marta; Libralato, Simone; Tudela, Sergi; Palomera, Isabel; Pranovi, Fabio
2008-12-10

Digital.CSIC (Spain)

36

EL ANALISIS RETROSPECTIVO DEL CRECIMIENTO EN PECES Y SUS PROBLEMAS ASOCIADOS/ THE RETROSPECTIVE ANALYSIS OF THE GROWTH IN FISH AND THEIR ASSOCIATED PROBLEMS

Araya, Miguel; Cubillos, Luis
2002-01-01

Resumen en español La historia del crecimiento individual de los peces se encuentra registrada en las marcas presentes en las estructuras duras como otolitos, escamas, vértebras, huesos y radios. El análisis retrospectivo o retrocálculo es una técnica que permite utilizar esa información para estimar dimensiones corporales en edades o etapas previas de la historia de vida, a través de relaciones entre mediciones realizadas en la estructura dura y las dimensiones del pez. En este traba (mas) jo se revisan los métodos de retrocálculo más ampliamente utilizados en peces y sus supuestos, con énfasis en la relación tamaño de la estructura dura - longitud del pez. La estructura dura más utilizada corresponde a los otolitos sagittae de los peces teleósteos, y aunque se hace referencia a ellos la técnica es aplicable a otras estructuras duras. Se distinguen dos aproximaciones: a) los métodos proporcionales; y, b) el método de regresión, ambas aproximaciones utilizan los parámetros de la ecuación que relaciona la longitud del pez y el tamaño del otolito al momento de la captura. El método de regresión no toma en cuenta la variación en el tamaño del otolito entre los peces; mientras que los métodos proporcionales incorporan la información de cada pez lo que da cuenta de la variación individual. Ambas aproximaciones asumen que existe una proporcionalidad entre el crecimiento somático y el crecimiento del otolito. A pesar del amplio uso que se hace del retrocálculo en estudios de crecimiento, a la técnica se le ha dado una importancia menor al momento de aplicarlo, lo que indica que es pobremente entendido. Aún cuando todos los métodos de retrocálculo se basan en la hipótesis de existencia de una proporcionalidad entre el crecimiento del otolito y el crecimiento del pez, sin embargo hay un número de especies en los cuales la relación longitud pez-otolito no es lineal. Un buen entendimiento de la relación entre el tamaño del otolito y tamaño del cuerpo puede llevar a mejorar la exactitud de los métodos de retrocálculo aplicado a cada especie. El desarrollo de los métodos de retrocálculo debería estar orientada hacia el diseño de algoritmos que consideren la tasa de crecimiento tiempo-variante. Por último, debido a la naturaleza de las mediciones (medidas repetidas y autocorrelación) los esfuerzos debieran dirigirse hacia la aplicación de métodos estadísticos apropiados y al uso de series de tiempo Resumen en inglés The individual fish growth history is recorded in the marks of hard structures, such as otoliths, scales, vertebrates, bones and rays. The retrospective analysis or back-calculation is a technique that allows to use this information to estimate body dimensions at previous ages or stages in the fish life history. This is achieved by using relationships between measurements taken from the hard structure and the body fish. In this paper, the more widely back-calculation meth (mas) ods used in fish are reviewed, as well as the main assumptions in the relationships between the hard structure size and the fish length. In teleosts, the more used hard structure have been the sagittae otoliths and although the technique can be applied to other hard structures, the otoliths are used as a reference. Two approaches are distinguished: a) the proportional methods, and b) the regression method, both approaches begin with estimates of the parameters for the equation that relates the fish length and the otolith size at the moment of the capture. The regression method does not take into account the individual variation in size of fish otoliths. On the contrary, the proportional methods use the information of each fish, i.e. the individual variation. However, both approaches assume that there are a direct proportion between the somatic growth and the otolith growth. In spite of the wide use of back-calculation methods in age and growth studies, the importance of the back-calculation technique have been overlooked when this is applied. This means that the technique is poorly understood. . All the back-calculation methods are based on the proportion between the otolith growth and body growth. However, there is a number of species in which the relationships between body fish and otolito size is non-linear. Better understanding of the relationships between otolith size and body size should improve the accuracy of back-calculation methods, mainly in those where readiness of data exists. The development of back-calculation methods should be addressed to the design of algorithms that consider the time-varying growth rate. Finally, because there are repeated measures and autocorrelation in back-calculation methods the research efforts should be oriented to improve the application of appropriate statistical methods and the uses of time series

Scientific Electronic Library Online (Spanish)

37
38

Differences between the sagitta, lapillus and vertebra in estimating age and growth in juvenile Mediterranean dolphinfish (Coryphaena hippurus)

Morales-Nin, Beatriz; Di Stefano, Mirella; Potoschi, Antonio; Massutí, Enric; Rizzo, Pietro; Gancitano, Salvatore
1999-01-01

Digital.CSIC (Spain)

40

Cold-water corals in the Cap de Creus canyon, northwestern Mediterranean: spatial distribution, density and anthropogenic impact

Orejas, Covadonga; Gori, Andrea; Lo Iacono, Claudio; Puig, Pere; Gili, Josep María; Dale, Mark R. T.
2009-12-17

Digital.CSIC (Spain)

41

Climate influence on deep sea populations

Company, Joan B.; Puig, Pere; Sardà, Francisco; Palanques, Albert; Latasa, Mikel; Scharek, Renate
2008-01-16

Digital.CSIC (Spain)

42

Cholinesterases activities and lipid peroxidation levels in muscle from shelf and slope dwelling fish from the NW Mediterranean: its potential use in pollution monitoring

Solé, Montserrat; Lobera, Gemma; Aljinovic, Biljana; Ríos, J.; García de la Parra, L. M.; Maynou, Francesc; Cartes, Joan Enric
2008-06-16

Digital.CSIC (Spain)

44

Assessment and bioeconomic analysis of the Majorca (NW Mediterranean) trammel net fishery

Merino, Gorka; Morales-Nin, Beatriz; Maynou, Francesc; Grau, Antoni Maria
2008-04-10

Digital.CSIC (Spain)

45

Análisis de instrumentos en costilla de alce, mandíbulas de castor y caparazón de tortuga de Zamostje 2 (Rusia)

Clemente-Conte, Ignacio; Gyria, Evgeni Y.; Lozovzska, Olia V.; Lozovski, Vladimir M.
2002-01-01

Digital.CSIC (Spain)

46

A web-based environment for shape analysis of fish otoliths. The AFORO database

Lombarte, Antoni; Chic, Óscar; Parisi-Baradad, Vicenç; Olivella, Roger; Piera, Jaume; García-Ladona, Emilio
2006-03-30

Digital.CSIC (Spain)

47

A web-based environment for shape analysis of fish otoliths. The AFORO database

Lombarte, Antoni; Chic, Óscar; Parisi-Baradad, Vicenç; Olivella, Roger; Piera, Jaume; García-Ladona, Emilio
2006-01-01

Digital.CSIC (Spain)

48

A noninvasive test of exposition to toxicants: quantitative analysis of cytochrome P4501A expression in fish scales

Quirós, Laia; Raldúa, Demetrio; Navarro Cuenca, Anna; Casado Belloso, Marta; Barceló, Damià; Piña, Benjamín

8 pages, 3 tables, 3 figures.-- PMID: 17867895 [PubMed]. | Elevated expression of cytochrome P4501A (CYP1A) is an established biomarker for exposition to a wide range of toxicants, particularly for dioxin and structurally similar compounds. Expression of CYP1A usually is analyzed in internal organs,...

DRIVER (Spanish)

49

A noninvasive test of exposition to toxicants: quantitative analysis of cytochrome P4501A expression in fish scales

Quirós, Laia; Raldúa, Demetrio; Navarro Cuenca, Anna; Casado Belloso, Marta; Barceló, Damià; Piña, Benjamín
2007-10-01

Digital.CSIC (Spain)

54


2003-12-01

Resumen en inglés Summary In the present study we present a multidisciplinary program, named «I want to be healthy» devoted to pre-school children and aimed to encourage a healthy life style. The purposes of the program were to teach the children to assess a healthy life and to learn the relationship of this type of life with food choice behavior and the practice of physical activity. The program consisted of three modules, health, nutrition and physical activity; workshops for psycholog (mas) ical support and the use of didactical materials. The program was applied for six month to 36 children of both sexes aged 5 and 6 years old. The control group consisted of children with similar ages and characteristics. All children were weighed, their heights and nutritional conditions were recorded by means of anthropometric procedures. Nutritional preferences and beliefs as to health care were evaluated by means of appropriate measuring scales and surveys administered to the children in both groups. At the end of the study, a significant improvement in the nutritional condition was observed ( undernourished children decreased by 32.5% and obese children by 54.5%). In addition, a significant reduction in time spent in watching TV and an increased consumption of fish and vegetables were also observed. Summing up, the program «I want to be healthy» can be applied by trained staff in any educational center. The program can serve as a basis for other programs that are in a position to adapt the suggested activities to their own conditions.

Scientific Electronic Library Online (Spanish)