.i.Moraria brevipes./i. (Crustacea: Copepoda) in South Bohemian forest soils

Czech Academy of Sciences Publication Activity Database

Háněl, Ladislav; Christian, E.

2004-01-01

Roč. 68, - (2004), s. 169-171 ISSN 1211-376X R&D Projects: GA ČR(CZ) GA206/99/1416 Institutional research plan: CEZ:AV0Z6066911 Keywords : forest floor * spruce * Crustacea Subject RIV: EH - Ecology, Behaviour

Description of the third instar larva of Megadytes latus (Fabricius (Coleoptera, Dytiscidae, with an identification key for described larvae of the genus Descrição da larva de terceiro ínstar de Megadytes latus (Fabricius (Coleoptera, Dytiscidae

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Nelson Ferreira-Jr

2006-09-01

Full Text Available The last instar larva of M. latus (Fabricius, 1801 is described and figured, based on reared specimens from Serra dos Órgãos, Teresópolis, state of Rio de Janeiro, Brazil. Some notes on the biotope are provided.A larva de terceiro ínstar de M. latus (Fabricius, 1801 é descrita e ilustrada, baseado em espécimes criados da Serra dos Órgãos, Teresópolis, Rio de Janeiro, Brasil. Algumas notas acerca do biótopo onde as larvas foram coletadas são incluídas.

Distribution of Mysidium integrum (Tattersall) (Crustacea-mysidacea) in Venezuelan coral habitats

NARCIS (Netherlands)

Zoppi de Roa, Evelyn; Pedro Alonso, G.

1997-01-01

ZOPPI DE ROA, EVELYN & PEDRO ALONSO G.: Distribution of Mysidium integrum (Tattersall) (Crustacea: Mysidacea) in Venezuelan coral habitats. Studies Nat. Hist. Caribbean Region 73, Amsterdam 1997: 55-62. This paper reports the occurrence, distribution and some ecological aspects of mysids in six

Landpissebedden van de Ooijpolder: deel 2. Ecologie (Crustacea: Isopoda: Oniscidea)

NARCIS (Netherlands)

Wijnhoven, H.

2001-01-01

Terrestrial isopods of the Ooijpolder: part 2. ecology (Crustacea: Isopoda: Oniscidea) From 1991 up to 1998 the isopod fauna of 1464 squares of 100x100 m was sampled in the Ooijpolder. This area is situated along the river Waal, east of Nijmegen (the Netherlands), close to the German border. In part

A cladistic analysis of the genera of Macrothricidae Norman & Brady (Crustacea, Cladocera, Radopoda Análise cladística dos gêneros de Macrothticidae Norman & Brady (Crustacea, Cladocera, Radopoda

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Lourdes M. A. Elmoor-Loureiro

2005-09-01

Full Text Available A cladistic analysis of the genera of the Macrothricidae (Crustacea, Cladocera, Radopoda was performed based on 36 morphological characters, and including 15 terminal taxa (three as outgroups. The single tree obtained from this analysis supported the monophyly of Macrothricidae and Macrothricinae. The group called as "non-Macrothricinae" was indicated as paraphyletic. Neothricidae was also not supported.Foi conduzida uma análise cladística dos gêneros sul-americanos de Macrothricidae (Crustacea, Cladocera, Radopoda com base em 36 caracteres morfológicos e incluindo 15 taxa terminais (três como grupos externos. Uma única árvore foi obtida pela análise, a qual suporta o monofiletismo de Macrothricidae e de Macrothricinae. O grupo chamado de "não-Macrothricinae" é indicado como parafilético. Neothricidae também não encontrou suporte.

Uma nova espécie de Centris Fabricius (Hymenoptera, Apoidea, Anthophoridae do Nordeste do Brasil A new species of Centris Fabricius (Hymenoptera, Apoidea, Anthophoridae from Northeastern Brazil

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Jesus Santiago Moure

2001-07-01

Full Text Available A new species of Centris Fabricius, 1804 is described as C. xanthomelaena (body size 15 mm, forewing length 10.33 mm, head width 5.25 mm, second abdominal tergum width 5.75 mm. The specimens were captured when visiting the yellow flowers of Chamaecrista amiciela (I. & B. I. & B., Caesalpiniaceae and of Stimaphyllom auriculatum (Cav. Adr. Juss, Malpighiaceae.

The Nearctic-Caribbean species Leptotrachelus dorsalis (Fabricius, 1801): Larval descriptions with a diagnosis of immature Ctenodactylini and natural history notes on the genus and tribe (Coleoptera: Carabidae)

Science.gov (United States)

Adults and larvae of Leptotrachelus dorsalis (Fabricius), live in association with grasses, the larvae in the appressed leaf axils. Both adult and larval L. dorsalis eat larvae of the Sugarcane Borer, Diatraea saccharalis (Fabricius), and perhaps other insects living in the confines of the leaf shea...

Identification and Behavioral Evaluation of Sex Pheromone in Xanthopimpla pedator (Fabricius)—A Serious Pupal Parasitoid of Tropical Tasar Silkworm Anthereae mylitta Drury

OpenAIRE

Lakshmi Marepally; Gaddam Benarjee

2016-01-01

Xanthopimpla is a major parasitoid of silk worm cocoons. The female Xanthopimpla pedator (Fabricius) lays the eggs in male cocoons. Control of this infestation with pesticides is not recommended because of its concealed behavior. Various control methods were found to be inefficient. Ecofriendly management is the best strategy that can be applied. We have studied the sex communication in Xanthopimpla pedator (Fabricius), which helps to develop management strategy. Bioassays were done in the la...

New host-plant records for the defoliator Ormiscodes amphimone (Fabricius) (Lepidoptera: Saturniidae).

Science.gov (United States)

Paritsis, Juan; Elgueta, Mario; Quintero, Carolina; Veblen, Thomas T

2010-01-01

Ormiscodes amphimone (Fabricius) is a phytophagous moth species known to severely defoliate woody species in Chile and Argentina. Here we document new records of O. amphimonehost associations emphasizing the role of Nothofagus pumilio as its primary host in our study area. This new record for Argentina is highly significant given the economic importance of N. pumilio as a timber resource and the potential of O. amphimone to generate extensive outbreaks.

New host-plant records for the defoliator Ormiscodes amphimone (Fabricius) (Lepidoptera: Saturniidae)

OpenAIRE

Paritsis, Juan; Elgueta, Mario; Quintero, Carolina; Veblen, Thomas T

2010-01-01

Ormiscodes amphimone (Fabricius) is a phytophagous moth species known to severely defoliate woody species in Chile and Argentina. Here we document new records of O. amphimonehost associations emphasizing the role of Nothofagus pumilio as its primary host in our study area. This new record for Argentina is highly significant given the economic importance of N. pumilio as a timber resource and the potential of O. amphimone to generate extensive outbreaks.

Apoptosis in the chicken bursa of fabricius induced by X-irradiation.

Science.gov (United States)

Arai, S; Kowada, T; Takehana, K; Miyoshi, K; Nakanishi, Y H; Hayashi, M

1996-10-01

Immature B lymphocytes in the chicken bursa of Fabricius have previously been reported to undergo apoptosis by low doses of ionizing radiation. In the present study, newly hatched chickens were subjected to whole-body X-irradiation, and the bursa of Fabricius was examined at various postirradiation times by light and electron microscopy to obtain information on the change of ultrastructure of irradiated bursal cells as well as on the time course and dose-response for the induction of apoptosis. Histological examination by light microscopy showed that pyknotic cells started to increase in the bursa within a few hours after irradiation and the frequency of occurrence reached a maximum at 6 hr. An evident increase of the pyknotic cells in number was observed at a dose of as little as 1 Gy, and the frequency increased with increases in the dose, reaching over 90% at 15 Gy. Electron microscopy of the irradiated bursa revealed typical apoptotic morphology such as chromatin condensation, nuclear fragmentation, formation of apoptotic bodies and phagocytosis of pyknotic cells. Induction of apoptosis was also confirmed by the appearance of a typical DNA ladder pattern on agarose gel. Thus, the present results demonstrate that the chicken bursal cells are hypersensitive to X-irradiation with regard to induction of apoptosis, and that the apoptotic bursal cells exhibit most of the ultrastructural features known to be typical of apoptosis.

Vitamin E as a radioprotector of bursa of Fabricius in chicks

International Nuclear Information System (INIS)

Malhotra, N.; Rana, K.; Malhotra, R.K.

1993-01-01

Radioprotective influence of vitamin E has been studied on the bursa of Fabricius 1 and 7 day old white leghorn chicks exposed to 2.25 Gy whole body γ-radiations. The study has revealed that the loss of lymphocytic population in the bursal follicles due to irradiation was very small in vitamin E treated animals compared to the untreated irradiated chicks. Also, the rate of reparation and lymphocytic repopulation was enhanced with vitamin E administration. (author). 8 refs., 8 figs

Removal of garlic-like off-odours from crustacea by gamma irradiation

International Nuclear Information System (INIS)

Freeman, D.J.; Izzard, M.E.; Whitfield, F.B.

1985-01-01

The strong garlic-like off-odours associated with the male shovel-nosed lobster (Ibacus peronii) and the royal red prawn (Hymenopenaeus sibogae) have been attributed principally to the presence of the sulphur-containing compound bis-(methylthio)-methane. In the male shovel-nosed lobster the concentration of this compound increases very rapidly following death, and a small number of contaminated crustacea may cause an entire consignment to be condemned. A method for removing this noxious odour was developed which involved gamma-irradiation of the affected crustacea using a cobalt-60 source. Eight lobsters were subjected to gamma-irradiation at a dose rate of 10 kGy an hour; one half of each was given a dose of 25 kGy and the other half a dose of 5 kGy. Results showed that a high dose completely removes the existing off-odour, and also prevents its further formation. With the lower dose the off-odour is not completely removed. A trial using fresh royal red prawns at doses of 0.5 and 1.0 kGy showed irradiation removed all traces of the off-odour, but in those irradiated at the higher dose a slight burnt flavour was noticeable

Removal of garlic-like off-odours from crustacea by gamma irradiation

Energy Technology Data Exchange (ETDEWEB)

Freeman, D J; Izzard, M E [Australian Atomic Energy Commission Research Establishment, Lucas Heights; Whitfield, F B [Commonwealth Scientific and Industrial Research Organization, North Ryde (Australia). Div. of Food Research

1985-04-01

The strong garlic-like off-odours associated with the male shovel-nosed lobster (Ibacus peronii) and the royal red prawn (Hymenopenaeus sibogae) have been attributed principally to the presence of the sulphur-containing compound bis-(methylthio)-methane. In the male shovel-nosed lobster the concentration of this compound increases very rapidly following death, and a small number of contaminated crustacea may cause an entire consignment to be condemned. A method for removing this noxious odour was developed which involved gamma-irradiation of the affected crustacea using a cobalt-60 source. Eight lobsters were subjected to gamma-irradiation at a dose rate of 10 kGy an hour; one half of each was given a dose of 25 kGy and the other half a dose of 5 kGy. Results showed that a high dose completely removes the existing off-odour, and also prevents its further formation. With the lower dose the off-odour is not completely removed. A trial using fresh royal red prawns at doses of 0.5 and 1.0 kGy showed irradiation removed all traces of the off-odour, but in those irradiated at the higher dose a slight burnt flavour was noticeable.

Phylogeny and evolution of life history strategies of the Parasitic Barnacles (Crustacea, Cirripedia, Rhizocephala)

DEFF Research Database (Denmark)

Glenner, Henrik; Hebsgaard, Martin Bay

2006-01-01

The barnacles (Crustacea, Cirripedia) consist of three well-defined orders: the conventional filter-feeding barnacles (Thoracica), the burrowing barnacles (Acrothoracica), and the parasitic barnacles (Rhizocephala). Thoracica and Acrothoracica feed by catching food particles from the surrounding ...... crustaceans (Anomura), which includes hermit crabs and squat lobsters....

Removal of off-flavours in some Australian crustacea by ionising radiation

International Nuclear Information System (INIS)

Freeman, D.J.

1985-01-01

Development of an export industry based on the deep sea royal red prawn, haliporoides sibogae and the shallow water shovel nosed lobster or balmain bug, lbacus peronii has been hampered by the sweet garlic off-flavour often encountered in both these species. A method for removing this noxious odour was developed which involved gamma irradiation of the affected crustacea using a cobalt-60 source

Respon Fungsional Menochilus sexmaculatus Fabricius terhadap Aphis Gossypii Glover

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F. X. Wagiman

1996-12-01

Full Text Available Laboratory and field-cage experiments were conducted at the Universiti Pertanian Malaysia. Objective of the study was to determine the functional response of Menochilus sexmaculatus Fabricius (Coleoptera: Coccinellidae predating on chilli aphid Aphis gossypii Glover (Homoptera: Aphididae. The larvae and adults of the predaceous coccinellid exhibited the Hulling's Type II functional response. A first instar of the coccinellid predating on single first instar of the aphid within 24.6 minutes in the laboratory and 16.8 minutes in the field. While a fourth instar and an adult of the coccinellid predating on single fourth instar of the aphid within 4.2 and 1.5 minutes respectively.

Shallow-water anomuran and brachyuran crabs (Crustacea: Decapoda from southern Bahia, Brazi l Cangrejos anomuros y braquiuros (Crustacea: Decapoda de aguas someras del sur de Bahia, Brasil

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Alexandre O Almeida

2010-01-01

Full Text Available The objective of this study was to determine the taxonomic composition and ecological aspects of decapods crustacean species belonging to the infraorders Anomura and Brachyura in shallow marine and estuarine waters from southern Bahia, a coastline about 640 km in extent, corresponding to approximately 7% of the Brazilian coast. Sixteen species of the infraorder Anomura and 68 of the infraorder Brachyura are reported for the study area. The most important families in terms of number of species were the Panopeidae with 11 species, and the Ocypodidae and Portunidae with 9. Among the Brachyura, the southern distribution of the species Austinixa leptodactyla Coelho, 1997 (Pinnotheridae, endemic to Brazil, is extended from the coast of Sergipe to Bahía (Prado, Cumuruxatiba Beach, 17°06'18.6"S, 39°10'50.4"W. The ocypodid Uca (Leptuca cumulanta Crane, 1943 and also the pinnotherids Austinixa aidae (Righi, 1967 and Fabia byssomiae (Say, 1818 are reported for the first time from the Bahia coast. The specimen of F. byssomiae examined was collected in the mantle cavity of the clam Macoma constrict (Bruchiére, 1792 (Bivalvia: Tellinidae, a new host record for the species.El objetivo del presente estudio fue determinar la composición taxonómica y aspectos ecológicos de los crustáceos decápodos pertenecientes a los infraórdenes Anomura y Brachyura, en aguas someras, marinas y estuarinas del sur de Bahia, Brasil, una línea costera con cerca de 640 km de extensión, que corresponde aproximadamente al 7% de la costa brasileña. Para esta area de estudio se registraron 16 especies del infraorden Anomura y 68 del infraorden Brachyura. Las familias más representativas en términos de número de especies fueron Panopeidae, con 11 especies, y Ocypodidae y Portunidae, ambas con nueve especies. Entre los Brachyura, la distribución meridional de Austinixa leptodactyla Coelho, 1997 (Pinnotheridae, endémica del Brasil, se extiende desde la costa de Sergipe

Survey of Biofouling an Australian Navy Ships: Crustacea; Isopoda and Amphipoda; Caprellidea

Science.gov (United States)

2008-01-01

amphipod behaviour and predatory strikes by fish . Journal of experimental marine Biology and Ecology 126:173-180, 1989. W. T. Calman. Crustacea. In...Limnoriidea and Sphaeromatidae be used to better reflect their phylogeny . In considering the suitability of maintaining the suborder Flabellifera, it...Caprellidae). Estuarine and Coastal Marine Science 10:225-237, 1979. E. A. Caine. Comparitive functional morphology of feeding in three species of

Ecomorfologia de caranguejos e siris (Crustacea Decapoda Brachyura) de ecossistemas costeiros

OpenAIRE

Marochi, Murilo Zanetti

2012-01-01

Resumo: Ecomorfologia de caranguejos e siris (CRUSTACEA DECAPODA BRACHYURA) de ecossistemas costeiros. O presente estudo objetivou avaliar se diferentes espécies de Brachyura possuem padrões ecomorfológicos em comum ligados ao habitat em que estão inseridas. Foram analisados 528 exemplares pertencentes a 24 espécies e provenientes dos seguintes ecossistemas costeiros: manguezal, costão rochoso, praia arenosa, bentopelagial e mar aberto. De todos os exemplares foram mensurada...

Estudios sobre los Entomostráceos de Colombia.V. Limnadia Orinoquiensis, una nueva especie de la familia Limnadiidae Sars, 1896 (Arthropoda, Crustacea, Conchostraca Estudios sobre los Entomostráceos de Colombia.V. Limnadia Orinoquiensis, una nueva especie de la familia Limnadiidae Sars, 1896 (Arthropoda, Crustacea, Conchostraca

Directory of Open Access Journals (Sweden)

Roessler Ewald W.

1991-06-01

Full Text Available En el presente estudio se describen rasgos morfológicos de una nueva especie colombiana del género Limnadia Brongniart, 1820, Limnadia orinoquiensis (Arthropoda, Crustacea, Conchostraca. La forma es de reproducción bisexual y típica para las aguas ácidas y oscuras de los alrededores de Puerto Inírida, Comisaria del Guainía. The present study describes morfological features of a new colombian species of the genus Limnadia Brongniart, 1820, Limnadia orinoquiensis (Arthropoda, Crustacea, Conchostraca, a species of bisexual reproduction, typical to the dark waters of temporary pools in the surroundings of Puerto Inírida, Comisaria of Guainía.

Changes in ventilation and locomotion of Gammarus pulex (Crustacea, Amphipoda) in response to low concentrations of pharmaceuticals

NARCIS (Netherlands)

Lange, de H.J.; Peeters, E.T.H.M.; Lürling, M.F.L.L.W.

2009-01-01

Exposure to contaminants below lethal concentrations may affect the performance of organisms, resulting in measurable differences in behavior. We measured the response of the benthic invertebrate Gammarus pulex (Crustacea, Amphipoda) to sublethal concentrations of three pharmaceuticals, fluoxetine,

Predation of Apiomerus pilipes (Fabricius (Hemiptera, Reduviidae, Harpactorinae, Apiomerini over Meliponinae bees (Hymenoptera, Apidae, in the State of Amazonas, Brazil

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Alexandre Coletto da Silva

2004-12-01

Full Text Available The present work shows the occurrence of an intense predatory activity on adults working Meliponinae bees (Hymenoptera, Apidae, by Apiomerus pilipes (Fabricius, 1787 (Hemiptera, Reduviidae, Harpactorinae, Apiomerini at a meliponary in the Instituto Nacional de Pesquisas da Amazônia (INPA, Manaus, Amazonas State, Brazil.O presente trabalho registra a ocorrência de intensa atividade predatória de Apiomerus pilipes (Fabricius, 1787 (Hemiptera, Reduviidae, Harpactorini, Apiomerini sobre operárias adultas de meliponíneos (Hymenoptera, Apidae, no meliponário experimental do Instituto Nacional de Pesquisas da Amazônia (INPA, Manaus, Estado do Amazonas, Brasil. O meliponário se encontra num fragmento de vegetação secundária no próprio INPA.

Insights into the ecology, genetics and distribution of Lucanus elaphus Fabricius (Coleoptera: Lucanidae), North America's giant stag beetle

Science.gov (United States)

Michael D. Ulyshen; Louis G. Zachos; John O. Stireman; Thomas N. Sheehan; Ryan C. Garrick

2017-01-01

1. Little is known about the biology or conservation status of Lucanus elaphus Fabricius in North America despite well-documented declines of a related species, Lucanus cervus (L.), in Europe. This study provides information critical to developing conservation plans for L. elaphus...

vasa-related genes and their expression in stem cells of colonial parasitic rhizocephalan barnacle Polyascus polygenea (Arthropoda: Crustacea: Cirripedia: Rhizocephala).

Science.gov (United States)

Shukalyuk, Andrey I; Golovnina, Kseniya A; Baiborodin, Sergei I; Gunbin, Konstantin V; Blinov, Alexander G; Isaeva, Valeria V

2007-02-01

vasa (vas)-related genes are members of the DEAD-box protein family and are expressed in the germ cells of many Metazoa. We cloned vasa-related genes (PpVLG, CpVLG) and other DEAD-box family related genes (PpDRH1, PpDRH2, CpDRH, AtDRHr) from the colonial parasitic rhizocephalan barnacle Polyascus polygenea, the non-colonial Clistosaccus paguri (Crustacea: Cirripedia: Rhizocephala), and the parasitic isopodan Athelgis takanoshimensis (Crustacea: Isopoda). The colonial Polyascus polygenea, a parasite of the coastal crabs Hemigrapsus sanguineus and Hemigrapsus longitarsis was used as a model object for further detailed investigations. Phylogenetic analysis suggested that PpVLG and CpVLG are closely related to vasa-like genes of other Arthropoda. The rest of the studied genes form their own separate branch on the phylogenetic tree and have a common ancestry with the p68 and PL10 subfamilies. We suppose this group may be a new subfamily of the DEAD-box RNA helicases that is specific for parasitic Crustacea. We found PpVLG and PpDRH1 expression products in stem cells from stolons and buds of internae, during asexual reproduction of colonial P. polygenea, and in germ cells from sexually reproducing externae, including male spermatogenic cells and female oogenic cells.

New records of Decapod Crustacea from the Mediterranean coast of Israel and the eastern Mediterranean

NARCIS (Netherlands)

Lewinsohn, Ch.; Holthuis, L.B.

1964-01-01

Since the publication by Holthuis & Gottlieb (1958) of a list of the Decapod Crustacea known at that time to inhabit the Mediterranean waters of Israel, several additional species, 18 in number, have been found in the area, while just prior to the issue of the paper by Holthuis & Gottlieb a

Custos ecofisiológicos do cuidado maternal em Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae)

OpenAIRE

Santos, Adão V.; Albuquerque, Gilberto S.

2001-01-01

Para estudar as características biológicas relacionadas com o cuidado maternal em Antiteuchus sepulcralis (Fabricius), foram feitas observações em 28 fêmeas, com suas respectivas posturas, criadas na planta hospedeira Hibiscus pernambucensis Arruda (Malvaceae). As posturas foram individualizadas em gaiolas de filó e verificadas diariamente no período de setembro/97 a maio/98, à temperatura média de 27,7°C. Para observar as estratégias de defesa exibidas pela fêmea, colocaram-se um ou mais ind...

Crescimento somático do caranguejo-uçá Ucides cordatus (Crustacea, Brachyura, Ocypodidae em laboratório Somatic growth of the mangrove crab Ucides cordatus (Crustacea, Brachyura, Ocypodidae in laboratory

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Giovana V. Lima

Full Text Available Em crustáceos, o aumento de tamanho ocorre imediatamente após a muda, quando o animal está com a carapaça mole. O crescimento de Ucides cordatus (Linnaeus, 1763 foi observado em laboratório, através da ocorrência de muda, incremento de muda e período de intermuda. O estudo foi realizado durante os meses de outubro/2000 a março/2002 e um total de 91 caranguejos (15 machos, 33 fêmeas e 43 juvenis foi coletado no manguezal de Itacuruçá - Coroa Grande, Estado do Rio de Janeiro, Brasil. Os animais foram mantidos em dois tipos de tanques: os caranguejos adultos foram mantidos em tanques de 1000 l, durante 18 meses, enquanto os juvenis foram mantidos em tanques plásticos de 20 l de capacidade durante oito meses. Os animais foram mantidos em sistema aberto de circulação de água do mar e alimentados duas vezes por semana com folhas de Rhizophora mangle (L. (Rhizophoraceae e Laguncularia racemosa (Gaertn. (Combretaceae. A largura da carapaça variou entre 50,1 a 70,0 mm nos machos, 40,2 a 80,0 mm entre as fêmeas e 1,1 a 40,1 mm entre os juvenis. A sobrevivência dos espécimes estudados foi de 46,7% entre os machos, 39,4% entre as fêmeas após dezoito meses e 67,4% entre os juvenis, após oito meses de observação. Os machos e as fêmeas realizaram três mudas durante o experimento, enquanto os juvenis realizaram até duas mudas. As mudas ocorreram entre agosto e abril, mostrando maior freqüência durante a primavera e o verão. O incremento na largura da carapaça diminuiu com o tamanho do indivíduo, com média de 2,21 ± 1,39% para os machos, 1,28 ± 0,84% para as fêmeas e 2,89 ± 2,13% para os juvenis. A relação entre o incremento percentual e a largura da carapaça pode ser expresso pela equação IM = -0.0707LC + 4.645 (r²= 0.40. O período de intermuda foi de 191 ± 140 dias entre os machos, 216 ± 76,2 dias entre as fêmeas e 54 ± 1,41 dia entre os juvenis. O incremento de muda foi estatisticamente significativo (pIn crustaceans, size increase occurs only immediately after molting when the animal is in the soft-shelled condition. The growth of Ucides cordatus (Linnaeus, 1763 was observed in laboratory, through its occurrence of molt, percentual increment of size and intermolt period. The study was realized from October/2000 to March/2002 and a total of 91 crabs (15 males, 33 females and 43 juveniles were sampled in Itacuruçá - Coroa Grande mangrove, State of Rio de Janeiro, Brazil. The animals were maintained in two types of containers: adult crabs were kept in containers of 1000 l capacity, during eighteen months; while the juveniles were kept in plastic containers of 20 l capacity during eight months. The crabs were maintained in flowing seawater and fed on frozen leaves of Rhizophora mangle (L. (Rhizophoraceae and Laguncularia racemosa (Gaertn. (Combretaceae, twice a week. The carapace width ranged from 50.1 to 70.0 mm in males, 40.2 to 80.0 mm to females and 1.1 to 40.1 mm to juveniles. The survival rate of the specimens studied was of 46.7% for males, 39.4% for females after eighteen months and 67.4% for juveniles after eight months. The males and females molted up to three times during the experiment, while the juveniles molted up twice. Molts occurred between August and April, showing more frequency during spring and summer. The increment of carapace width decreased with size, with mean was 2.21 ± 1.39% for males, 1.28 ± 0.84% for females and 2.89 ± 2.13% for juveniles. The relationship between the percentual increment and the carapace width can be expressed by the equation IM = -0.0707LC + 4.645 (r²= 0.40. The intermolt period was 191 ± 140 days for males, 216 ± 76.2 days for females and 54 ± 1.41 days for juveniles. The percentual increment of size was statistically significant (p<0,05 when compared males and females, and adults and juveniles.

Larval morphology of Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae) using scanning electron microscopy.

Science.gov (United States)

Sukontason, Kabkaew L; Sukontason, Kom; Piangjai, Somsak; Boonchu, Noppawan; Chaiwong, Tarinee; Vogtsberger, Roy C; Kuntalue, Budsabong; Thijuk, Natchanart; Olson, Jimmy K

2003-06-01

The larval morphology of Chrysomya megacephala (Fabricius) is presented using scanning electron microscopy (SEM). Extreme similarity of this species to Chrysomya rufifacies (Macquart), a species usually found concurrently inhabiting decomposing human corpses in Thailand, is seen only in the first-instar larvae. The relative thickness of the branches of the posterior spiracular hairs in these species could be used to differentiate them in this developmental stage. In contrast, the "hairy" appearance of C. rufifacies allows second- and third-instar larvae to be easily distinguished. Results of this study should help in future endeavors to differentiate C. megacephala from other larvae found in decomposing human corpses in Thailand.

Age dependent radiation sensitivity of eggs of Dysdercus koenigii Fabricius

International Nuclear Information System (INIS)

Harwalkar, M.R.

1992-01-01

Eggs of Dysdercus koenigii Fabricius aged 0 to 2, 24, 48 and 72 hr were irradiated with X-ray doses ranging between 3 to 15 Gy to determine radiation sensitivity. It was observed that age of the eggs greatly influenced their response to radiation treatment. A dose of 6 Gy was required to prevent hatching of 0 to 2 hr old eggs but older eggs (24 and 48 hr) required 9 and 15 Gy, respectively, to bring about the same effect. At all the doses hatchability of 72 hr old irradiated eggs was much higher than those irradiated at younger age. Survival of nymphs emerging from 72 hr irradiated eggs at different dose levels was found to be dose dependent. Percentage of nymphs metamorphosing into adults decreased with increasing radiation dose received at the embryonic stage. (author). 21 refs., 2 figs

External morphology of Lightiella monniotae (Crustacea, Cephalocarida) in the light of Cambrian 'Orsten' crustaceans

DEFF Research Database (Denmark)

Olesen, Jørgen; Haug, Joachim T.; Maas, Andreas

2011-01-01

The species-poor meiofaunal Cephalocarida have played an important role in discussions of the phylogeny and evolution of Crustacea since their discovery in 1955. One reason may be that the morphology of cephalocarids includes some aspects of putatively ancient appearance, such as the simple roof-...... has again proved to be especially appropriate because of the small size of these animals, and because it permits direct comparisons with other similarly small crustaceans and the ‘Orsten’ crustaceans and their larvae....

Four new species of the genus Rhopalophthalmus (Mysidacea: Crustacea) from the northwest coast of India

Digital Repository Service at National Institute of Oceanography (India)

Panampunnayil, S.U.; Biju, A.

Four new species of the genus Rhopalophthalmus (Mysidacea: Crustacea) from the north west coast of India PANAMPUNNAYIL S.U. AND BIJU. A* National Institute of Oceanography, Regional Centre, Kochi-18, India *Email: biju_nio@yahoo.com Abstract... setae on distal border (Figures 7, 8). Inner lobe of maxillule with five plumose setae and three stout barbed spines, outer lobe with nine strong spines on distal border (Figure 9). Maxilla with large basal lobe and deeply cleft distal lobe; exopod...

Macroepizoísmo em Libinia ferreirae (Crustacea, Brachyura, Majidae Macroepizoites on Libinia ferreirae (Crustacea, Brachyura, Majidae

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Vanessa C. Winter

2006-06-01

Full Text Available Um estudo de distribuição dos macroepizóicos foi realizado numa população do caranguejo-aranha Libinia ferreirae Brito Capello, 1871 proveniente do litoral dos estados do Paraná e de Santa Catarina. O material biológico foi obtido junto aos pescadores, e faz parte do rejeito de pesca. Os caranguejos foram mensurados e os macroepizóicos identificados e contados. Os seguintes macroepizóicos sésseis foram registrados: Calliactis tricolor (Lesueur, 1817 (Cnidaria; Actiniaria (Cnidaria; Arca sp. (Mollusca; Ostreidae (Mollusca; Acanthodesia tenuis (Desor, 1848 (Bryozoa; Cirripedia e duas espécies tubícolas de Gammaridea (Crustacea. Além destes organismos ocorreram dois tubos desabitados e quatro animais vágeis. A anêmona C. tricolor foi a espécie mais abundante e freqüente, sendo, provavelmente, utilizada como mecanismo de camuflagem pelo caranguejo. O macroepizoísmo em L. ferreirae está relacionado com a idade ou tamanho do caranguejo, tendo maior incidência naqueles mais velhos ou de maior porte. Entretanto, a densidade dos macroepizóicos por caranguejo se mantém em torno de três. Não há relação entre o macroepizoísmo e o sexo do hospedeiro; somente fêmeas ovígeras utilizam desse recurso mais freqüentemente do que as não-ovígeras. Devido à maior área de fixação, os macroepizóicos colonizam principalmente a carapaça do caranguejo, enquanto nos pereiópodos há predominância de Bryozoa.A study of the distribution of the macroepizoites was carried out on a population of the spider crab Libinia ferreirae Brito Capello, 1871 from the Southern Brazilian coast. Crabs were obtained from shrimps and fishes by-catch. They were measured, and their macroepizoites were identified and counted. The following sessile macroepizoites were registered: Calliactis tricolor (Lesueur, 1817 (Cnidaria; Actiniaria (Cnidaria; Arca sp. (Mollusca; Ostreidae (Mollusca; Acanthodesia tenuis (Desor, 1848 (Bryozoa; Cirripedia and two species

Aspectos da biologia de nidificação de Euplusia mussitans (Fabricius (Hymenoptera, Apidae, Euglossini Aspects of nesting biology of Euplusia mussitans Fabricius (Hymenoptera, Apidae, Euglossini

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Blandina Felipe Viana

2001-12-01

Full Text Available The architecture and biology of Euplusia mussitans (Fabricius, 1787 nests were investigated, using trap nests made by wood, which were randomly distributed in a fragment of a coastal sand dunes, in Salvador, Bahia. Brazil (12º56'S and 38º21'W. 10 nests were found in cavities with 1.5 cm in diameter. From them emerged 10 females and 16 males (Sex ratio = 0,38. The nest cells were made of small pieces of bark cemented together with resin. The number of cells in the nests varied from 2 to 4, with females cells at the inner end and males cells towards the entrance. No significant difference was observed (t= 0.7274, P > 0.05 between the medium size for males (6.3 mm ± 0.16 and for females (6.4 mm ± 0.29. The development time of females was longer than males.

PENGARUH FORMULASI DAN LAMA PENYIMPANAN PADA VIABILITAS, BIOAKTIVITAS DAN PERSISTENSI CENDAWAN METARHIZIUM ANISOPLIAE TERHADAP CROCIDOLOMIA PAVONANA FABRICIUS

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Nuraida .

2016-09-01

Full Text Available Effects of formulations and storage length on the viability, bioactivity and persistence of Metarhizium anisopliae against Crocidolomia pavonana Fabricius. Crocidolomia pavonana Fabricius (Lepidoptera: Pyralidae is important pest on vegetables form Brassicaceae family, that required to be control. Metarhizium anisopliae entomopathogenic fungus is one potensial of the biological agent that can be used to control C. pavonana. This study aimed to investigated the effect of storage duration on viability, bioactivity and persistence of M. anisopliae after formulated to control C. pavonana. Laboratory experiment was arranged in completely randomized design with the treatment was storage duration that included 2,4,6,8 and 10 weeks that replicated three trials. The variabels to be measured were viability and bioactivity at concentrations106, 107, and108. Field experiment used T Student test with treatment was duration of M. anisopliae formulation survive and its persistence on C. pavonana. Laboratory experiment results showed that the best storage duration of formulation on Metarhizium viability was pellet frmulation at 4th week 4 after storage. While the best bioactivity was pellet formulation with concentration 107 at 10 weeks after storage. Field experiment results showed that M. anisopliae formulation could be survived and its persistence to control pests C. pavonana until 4th day after application, either pellet or powder formulation.

A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens

Science.gov (United States)

Hart, Elwood R; Weirauch, Christiane

2016-01-01

Abstract The New World assassin bug genus Zelus Fabricius, 1803 (Insecta: Hemiptera: Heteroptera: Reduviidae: Harpactorinae: Harpactorini) is revised based on more than 10,000 specimens. Seventy-one species are recognized and twenty-four described as new: Zelus aithaleos sp. n., Zelus amblycephalus sp. n., Zelus antiguensis sp. n., Zelus auralanus sp. n., Zelus bahiaensis sp. n., Zelus banksi sp. n., Zelus casii sp. n., Zelus championi sp. n., Zelus cordazulus sp. n., Zelus fuliginatus sp. n., Zelus gilboventris sp. n., Zelus gracilipes sp. n., Zelus grandoculus sp. n., Zelus kartaboides sp. n., Zelus lewisi sp. n., Zelus panamensis sp. n., Zelus paracephalus sp. n., Zelus rosulentus sp. n., Zelus russulumus sp. n., Zelus spatulosus sp. n., Zelus truxali sp. n., Zelus umbraculoides sp. n., Zelus umbraculus sp. n., and Zelus xouthos sp. n. Five species, Zelus araneiformis Haviland, 1931, Zelus gradarius Bergroth, 1905, Zelus modestus (Stål, 1862), Zelus subfasciatus Stål, 1860 and Zelus vittaticeps Stål, 1866, are removed from Zelus and placed incertae sedis within Harpactorini. Nine new synonyms are recognized (senior synonym in parentheses): Zelus atripes Champion, 1898 syn. nov. (=Zelus conjungens [Stål, 1860]), Zelus dispar Fabricius, 1803 syn. nov. (=Zelus pedestris Fabricius, 1803), Zelus formosus Haviland, 1931 syn. nov. (=Zelus laticornis Herrich-Schaeffer, 1853), Zelus obscuridorsis (Stål, 1860) syn. nov. (=Zelus pedestris), Zelus pallidinervus Haviland, 1931 syn. nov. (=Zelus kartabensis Haviland, 1931), Zelus personatus Berg, 1879 syn. nov. (=Zelus versicolor Herrich-Schaeffer, 1848), Zelus trimaculatus Champion, 1898 syn. nov. (=Zelus means Fabricius, 1803), Zelus trimaculicollis (Stål, 1855) syn. nov. (=Zelus means), and Zelus tristis Haviland, 1931 syn. nov. (=Zelus laticornis). Zelus conjungens (Stål, 1860) stat. rev. Is resurrected from junior synonymy with zealous armillatus (Lepeletier & Seville, 1825). Zelus ambulans Stål, 1862 stat. rev

A taxonomic monograph of the assassin bug genus Zelus Fabricius (Hemiptera: Reduviidae): 71 species based on 10,000 specimens.

Science.gov (United States)

Zhang, Guanyang; Hart, Elwood R; Weirauch, Christiane

2016-01-01

The New World assassin bug genus Zelus Fabricius, 1803 (Insecta: Hemiptera: Heteroptera: Reduviidae: Harpactorinae: Harpactorini) is revised based on more than 10,000 specimens. Seventy-one species are recognized and twenty-four described as new: Zelus aithaleos sp. n., Zelus amblycephalus sp. n., Zelus antiguensis sp. n., Zelus auralanus sp. n., Zelus bahiaensis sp. n., Zelus banksi sp. n., Zelus casii sp. n., Zelus championi sp. n., Zelus cordazulus sp. n., Zelus fuliginatus sp. n., Zelus gilboventris sp. n., Zelus gracilipes sp. n., Zelus grandoculus sp. n., Zelus kartaboides sp. n., Zelus lewisi sp. n., Zelus panamensis sp. n., Zelus paracephalus sp. n., Zelus rosulentus sp. n., Zelus russulumus sp. n., Zelus spatulosus sp. n., Zelus truxali sp. n., Zelus umbraculoides sp. n., Zelus umbraculus sp. n., and Zelus xouthos sp. n. Five species, Zelus araneiformis Haviland, 1931, Zelus gradarius Bergroth, 1905, Zelus modestus (Stål, 1862), Zelus subfasciatus Stål, 1860 and Zelus vittaticeps Stål, 1866, are removed from Zelus and placed incertae sedis within Harpactorini. Nine new synonyms are recognized (senior synonym in parentheses): Zelus atripes Champion, 1898 syn. nov. (=Zelus conjungens [Stål, 1860]), Zelus dispar Fabricius, 1803 syn. nov. (=Zelus pedestris Fabricius, 1803), Zelus formosus Haviland, 1931 syn. nov. (=Zelus laticornis Herrich-Schaeffer, 1853), Zelus obscuridorsis (Stål, 1860) syn. nov. (=Zelus pedestris), Zelus pallidinervus Haviland, 1931 syn. nov. (=Zelus kartabensis Haviland, 1931), Zelus personatus Berg, 1879 syn. nov. (=Zelus versicolor Herrich-Schaeffer, 1848), Zelus trimaculatus Champion, 1898 syn. nov. (=Zelus means Fabricius, 1803), Zelus trimaculicollis (Stål, 1855) syn. nov. (=Zelus means), and Zelus tristis Haviland, 1931 syn. nov. (=Zelus laticornis). Zelus conjungens (Stål, 1860) stat. rev. Is resurrected from junior synonymy with zealous armillatus (Lepeletier & Seville, 1825). Zelus ambulans Stål, 1862 stat. rev. and Zelus

Irradiation effect of electronic beam on older larvae of Lasioderma serricorne (Fabricius)

International Nuclear Information System (INIS)

Chen Yuntang; Guo Dongquan; Zhang Jianwei; Yang Baoan

2010-01-01

Cigarette beetle [ Lasioderma serricorne (Fabricius) ] is an important pest of stored tobacco distributing over the world, and it is also one of the most serious pests in the tobacco warehouse. The larvae is the most serious detriment in the four states of cigarette beetle. The objective of this study was to control the damage on tobacco from cigarette beetle. The irradiation effects of electronic beam on the older larvae of cigarette beetle in tobacco were studied. The results showed that the older larvae irradiated by the doses higher than 480 Gy could prevent the development to adults; and no new generation was found after 300 Gy irradiation for older larvae. Thus 300Gy irradiation could prevent the reproduction of cigarette beetle for the older larvae in the tobacco. (authors)

Nuevos datos sobre la distribución de Stenostoma rostratum (Fabricius, 1787 en Cataluña (nordeste de la península Ibérica (Coleoptera, Oedemeridae

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Agulló, J.

2013-02-01

Full Text Available New data on the distribution of Stenostoma rostratum (Fabricius, 1787 in Catalonia (northeastern Iberian peninsula (Coleoptera, Oedemeridae Distribution of Stenostoma rostratum (Fabricius, 1787 in Catalonia is updated. New data were obtained from recent prospecting at two natural reserves on the Mediterranean coast, the Espais Naturals del Delta de Llobregat (province of Barcelona and the Parc Natural de les Illes Medes, Massís del Montgrí i Plana del Baix Ter (province of Girona. The species was found exclusively in sand dunes, occupying a limited area on the Catalan coast. Stenostoma rostratum is considered a threatened species in Catalonia. The latest previous records were published 40 years ago. Remarks about its habitat, ecology and conservation in both protected areas are also provided.

Plant feeding promotes diversification in the Crustacea.

Science.gov (United States)

Poore, Alistair G B; Ahyong, Shane T; Lowry, James K; Sotka, Erik E

2017-08-15

About half of the world's animal species are arthropods associated with plants, and the ability to consume plant material has been proposed to be an important trait associated with the spectacular diversification of terrestrial insects. We review the phylogenetic distribution of plant feeding in the Crustacea, the other major group of arthropods that commonly consume plants, to estimate how often plant feeding has arisen and to test whether this dietary transition is associated with higher species numbers in extant clades. We present evidence that at least 31 lineages of marine, freshwater, and terrestrial crustaceans (including 64 families and 185 genera) have independently overcome the challenges of consuming plant material. These plant-feeding clades are, on average, 21-fold more speciose than their sister taxa, indicating that a shift in diet is associated with increased net rates of diversification. In contrast to herbivorous insects, most crustaceans have very broad diets, and the increased richness of taxa that include plants in their diet likely results from access to a novel resource base rather than host-associated divergence.

Effect of electronic beam irradiation on last instar larvae of lasioderma serricorne fabricius

International Nuclear Information System (INIS)

Chen Yuntang; Guo Dongquan; Lu Xiaohua; Zhang Jianwei; Yang Baoan; Du Yueguang; Liu Jiangyu; Tian Zhanjun; Zhang Xiaoyan

2010-01-01

The electronic beam irradiation effects on the last instar larvae of cigarette beetle (Lasioderma serricorne Fabricius) in tobacco were studied, and the mortality in 42 days, lethal time, pupation rate, emergence rate and reproductive capacity after irradiation were measured. The results showed that the mortality increased with the increase of irradiation dosage, but the larvae did not dead immediately. The last instar larvae irradiated by the dosages higher than 480 Gy could prevent the development of larvae to adults. No new generation was found after 300 Gy treatment of the last instar larvae. So 300 Gy irradiation could be considered as a suitable dose to prevent the reproduction of cigarette beetle of the last instar larvae in the tobacco. (authors)

Fertilidade do caranguejo de mangue Ucides cordatus (Linnaeus (Crustacea, Brachyura, Ocypodidae, em Iguape (São Paulo, Brasil Fertility of the mangrove crab Ucides cordatus (Linnaeus (Crustacea, Brachyura, Ocypodidae, at Iguape (São Paulo, Brazil

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Gustavo Yomar Hattori

2003-06-01

Full Text Available A total of 58 Ucides cordatus (Linnaeus, 1763 ovigerous females in final embryonic stage were collected in mangrove forest at Iguape (São Paulo. Each female were kept in laboratory until the larvae hatching and had their carapace width (CW measured with caliper (0.05 mm and the larval number (LN calculated by volumetric method. The hatching rates (HR were calculated for each animal's size class (5 mm. The values of LN and CW obtained were subjected to regression analyses and the best fitting model was chosen by comparing the obtained determination coefficients (R². The fertility varied from 71,200 to 220,800 larvae (147,169 ± 32,070 larvae, corresponding to 41.7 to 76.8 mm CW (63.7±7.9 mm, respectively. The relationship LNxCW was expressed by the equation LN = 284.1CW1.5º¹ (N = 58; R² = 0.74; p < 0.01, that showed a positive correlation between the variables. Most part of ovigerous females (89.7% showed their hatching during the nightly period. A negative correlation between HR and CW was observed in these animals (p < 0.05, probably due to reduction of spermatophores in the seminal receptacle (multiparous females or due to senility in the females with large size. The biological studies of U. cordatus are very important for practices adoption that preserve and make the rational use of this recourse in Brazilian's mangrove forests.

Ocorrência e recomendações para o manejo de Sirex noctilio Fabricius (Hymenoptera, Siricidae em plantios de Pinus patula (Pinaceae em Minas Gerais, Brasil Occurrence and management recommendations of Sirex noctilio Fabricius (Hymenoptera, Siricidae on Pinus patula (Pinaceae plantations in the state of Minas Gerais, Brazil

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Edson Tadeu Iede

2007-12-01

Full Text Available A vespa-da-madeira Sirex noctilio Fabricius, 1793 (Hymenoptera, Siricidae é a praga mais importante das florestas cultivadas com Pinus spp. no Brasil. Foi introduzida no Rio Grande do Sul em 1988 e sua dispersão ficou restrita aos estados do sul do país até 2004, quando foi detectada em São Paulo. Neste trabalho é relatada a ocorrência de S. noctilio em plantios de Pinus patula em Minas Gerais, em janeiro de 2005. São discutidas algumas medidas que podem ser adotadas para restringir a dispersão de S. noctilio na região Sudeste.The woodwasp Sirex noctilio Fabricius, 1793 (Hymenoptera, Siricidae is the most important pest on Pinus spp. in Brazil. It was introduced in the state of Rio Grande do Sul in 1988 and dispersed through the southern states. In 2004 it was detected in São Paulo state. In this work, it is reported the occurrence of S. noctilio in the state of Minas Gerais, in January 2005, on commercial areas of Pinus patula. It is discussed some measures that can be adopted to restrict its spread in the southeastern region.

Chrysomya albiceps (Wiedemann and Hemilucilia segmentaria (Fabricius (Diptera, Calliphoridae used to estimate the postmortem interval in a forensic case in Minas Gerais, Brazil

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Cecília Kosmann

2011-12-01

Full Text Available ABSTRACT. Chrysomya albiceps (Wiedemann and Hemilucilia segmentaria (Fabricius (Diptera, Calliphoridae used to estimate the postmortem interval in a forensic case in Minas Gerais, Brazil. The corpse of a man was found in a Brazilian highland savanna (cerrado in the state of Minas Gerais. Fly larvae were collected at the crime scene and arrived at the laboratory three days afterwards. From the eight pre-pupae, seven adults of Chrysomya albiceps (Wiedemann, 1819 emerged and, from the two larvae, two adults of Hemilucilia segmentaria (Fabricius, 1805 were obtained. As necrophagous insects use corpses as a feeding resource, their development rate can be used as a tool to estimate the postmortem interval. The post-embryonary development stage of the immature collected on the body was estimated as the difference between the total development time and the time required for them to become adults in the lab. The estimated age of the maggots from both species and the minimum postmortem interval were four days. This is the first time that H. segmentaria is used to estimate the postmortem interval in a forensic case.

A dataset on the species composition of amphipods (Crustacea) in a Mexican marine national park: Alacranes Reef, Yucatan

OpenAIRE

Paz,Carlos; Simões,Nuno; Pech,Daniel

2018-01-01

Abstract Background Alacranes Reef was declared as a National Marine Park in 1994. Since then, many efforts have been made to inventory its biodiversity. However, groups such as amphipods have been underestimated or not considered when benthic invertebrates were inventoried. Here we present a dataset that contributes to the knowledge of benthic amphipods ( Crustacea , Peracarida ) from the inner lagoon habitats from the Alacranes Reef National Park, the largest coral reef ecosystem in the Gul...

Profilicollis novaezelandensis n. sp. (Polymorphidae) and two other acanthocephalan parasites from shore birds (Haematopodidae and Scolopacidae) in New Zealand, with records of two species in intertidal crabs (Decapoda: Grapsidae and Ocypodidae).

Science.gov (United States)

Brockerhoff, A M; Smales, L R

2002-05-01

Profilicollis novaezelandensis n. sp. (Acanthocephala: Polymorphidae) is described from the South Island pied oystercatcher Haematopus ostralegus finschi Martens (Haematopodidae) and the intertidal crab Hemigrapsus crenulatus (Milne Edwards) (Brachyura: Grapsidae) from the South Island of New Zealand. The new species can be distinguished from all the other species of the genus by a combination of the following characters: long neck (13% of total body length for adults) and a subspherical proboscis with 14-16 longitudinal rows of 7-8 hooks. The mud crabs Helice crassa Dana (Grapsidae) and Macrophthalmus hirtipes (Heller) (Ocypodidae) were also harbouring cystacanths and the bar-tailed godwit Limosa lapponica (Linnaeus) (Scolopacidae) juveniles of P. novaezelandensis. This is the first record of brachyuran decapods as intermediate hosts of Acanthocephala from New Zealand. P. antarcticus is recorded from three crab species (Helice crassa, Hemigraspus crenulatus and Macrophthalmus hirtipes) and two bird species (Haematopus o. finschi and Limosa lapponica) in New Zealand. An unidentified species of Plagiorhynchus was also found in two bird species (H. o. finschi and H. unicolor Forster). P. antarcticus and P. novaezelandensis are the first records of Profilicollis from New Zealand.

Including irrigation in niche modelling of the invasive wasp Vespula germanica (Fabricius) improves model fit to predict potential for further spread

OpenAIRE

de Villiers, Marelize; Kriticos, Darren J.; Veldtman, Ruan

2017-01-01

The European wasp, Vespula germanica (Fabricius) (Hymenoptera: Vespidae), is of Palaearctic origin, being native to Europe, northern Africa and Asia, and introduced into North America, Chile, Argentina, Iceland, Ascension Island, South Africa, Australia and New Zealand. Due to its polyphagous nature and scavenging behaviour, V. germanica threatens agriculture and silviculture, and negatively affects biodiversity, while its aggressive nature and venomous sting pose a health risk to humans. In ...

KEANEKARAGAMAN JENIS KRUSTASEA DI KAWASAN MANGROVE KABUPATEN PURWOREJO, JAWA TENGAH (Biodiversity of Crustacea in Mangrove Area, Purworejo Regency, Central Java

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Slamet Mardiyanto Rahayu

2017-05-01

Full Text Available dan pendidikan. Luas kawasan mangrove di Kabupaten Purworejo semakin berkurang akibat adanya penebangan, pemukiman, tambak, dan pertanian. Ada tiga stasiun, yaitu mangrove lebat (Desa Gedangan, mangrove sedang (Desa Jatikontal, dan mangrove jarang (Desa Ngentak. Ditemukan 19 jenis dari 6 famili krustasea yaitu Ocypodidae, Sesarmidae, Portunidae,Alpheidae, Palaemonidae, dan Penaeidae. Terdapat empat jenis krustasea bernilai ekonomi tinggi. Kepadatan krustasea tertinggi di stasiun I, terendah di stasiun III. Indeks keanekaragaman (H’ krustasea di seluruh stasiun termasuk kategori sedang dengan. Indeks keseragaman (E krustasea di seluruh stasiun termasuk kategori sedang. Indeks  dominansi (C krustasea di seluruh stasiun termasuk kategori rendah. Vegetasi mangrove pada stasiun I adalah Rhizophora mucronata, Nypa fruticans, Sonneratia alba, dan Hibiscus tiliaceus. Vegetasi mangrove pada stasiun II adalah Sonneratia caseolaris, Rhizophora stylosa, N.fruticans, H.tiliaceus, dan Morinda citrifolia.Vegetasi mangrove pada stasiun III adalah S.alba, S.caseolaris, N.fruticans, dan R.mucronata. Kondisi faktor lingkungan di seluruh stasiun relatif baik untuk kehidupan mangrove dan krustasea.   Kata Kunci: krustasea, mangrove, Purworejo, keanekaragaman   Kata Kunci: krustasea, mangrove, Purworejo, keanekaragaman

First record of Puerulus mesodontus Chan, Ma & Chu, 2013 (Crustacea, Decapoda, Achelata, Palinuridae) from south of Java, Indonesia.

Science.gov (United States)

Wardiatno, Yusli; Hakim, Agus Alim; Mashar, Ali; Butet, Nurlisa Alias; Adrianto, Luky; Farajallah, Achmad

2016-01-01

Three specimens of Puerulus mesodontus Chan, Ma & Chu, 2013 (Crustacea, Decapoda, Achelata, Palinuridae) were collected from Palabuhanratu Bay, southern Java, Indonesia. There is no previous record on the presence of the species in Indonesia. This finding represents the first record of this species in Java, Indonesia, and confirms that the species is present in the Indian Ocean. The morphological characters of the species are described. This paper contains a new distribution record of a lobster species from Indonesian waters.

Bioactivity of Lantana camara L. essential oil against Callosobruchus maculatus (Fabricius Bioactividad de aceite esencial de Lantana camara L. contra Callosobruchus maculatus (Fabricius

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Nooshin Zandi-Sohani

2012-12-01

Full Text Available Lantana camara L. is a widespread plant species mostly native to subtropical and tropical regions of the world. In this study, insecticidal and repellent activities of L. camara essential oil were evaluated against Callosobruchus maculatus (Fabricius (Col: Bruchidae. Analysis of chemical composition by gas chromatography/mass spectrometry (GC/MS showed high amounts of sesquiterpenes, mainly α-humelene (23.3% and cis-caryophyllene (16.2%. The results showed that the essential oil of L. camara has strong repellent activity against adults of C. maculatus at all tested concentrations. After 2 and 4 h, 97.4 and 100% repellency was seen at highest concentrations of 0.4 μL cm-2, respectively. Moreover, the oil was found to be toxic to adults when applied by fumigation. Responses varied with the gender of insect and exposure time. The LC50 values were 282.7 and 187.9 μL L-1 for females and males, respectively. An increase in the exposure time from 3 to 24 h caused increasing in mortality from 23.6 to 100% in males and from 14.1 to 97.1% in females, at highest concentration (1160 μL L-1. According to these results, L. camara essential oil may be useful as an alternative for bean protection against C. maculatus.Lantana camara L. es una especie vegetal nativa de las regiones subtropicales y tropicales del mundo. En este estudio se evaluaron las actividades insecticida y repelente del aceite esencial de L. camara contra Callosobruchus maculatus (Fabricius. El análisis de la composición volátil de este aceite esencial mediante cromatografía de gas/ espectrometría de masa (GC/MS demostró la presencia de elevadas cantidades de sesquiterpenos, principalmente α-humuleno (23.3% y ci's-cariofileno (16.2%. Los resultados obtenidos demostraron que el aceite esencial de L. camara tiene una elevada actividad repelente contra los adultos de C. maculatus a todas las concentraciones ensayadas. Después de 2 y 4 h la concentración de 0.4 μL cm-2 causó 97

Eficiência do Cuidado Maternal de Antiteuchus sepulcralis (Fabricius) (Hemiptera: Pentatomidae) Contra Inimigos Naturais do Estágio de Ovo

OpenAIRE

SANTOS, ADÃO V.; ALBUQUERQUE, GILBERTO S.

2001-01-01

Para avaliar os benefícios do cuidado maternal em Antiteuchus sepulcralis (Fabricius), foram realizados estudos de campo, em árvores da planta hospedeira Hibiscus pernambucensis Arruda (Malvaceae). Utilizaram-se três tipos de gaiolas de exclusão: sem o acesso de inimigos naturais (=controle); acesso apenas a parasitóides e acesso a todos os inimigos naturais, além de um tratamento onde as posturas foram avaliadas sem gaiola. Para cada tratamento, usou-se uma condição onde a fêmea protegia a p...

Analysis of the transcriptome of blowfly Chrysomya megacephala (Fabricius) larvae in responses to different edible oils.

Science.gov (United States)

Zhang, Min; Yu, Hao; Yang, Yanyan; Song, Chao; Hu, Xinjun; Zhang, Guren

2013-01-01

Chrysomya megacephala (Fabricius), a prevalent necrophagous blowfly that is easily mass reared, is noted for being a mechanical vector of pathogenic microorganisms, a pollinator of numerous crops, and a resource insect in forensic investigation in the postmortem interval. In the present study, in order to comprehensively understand the physiological and biochemical functions of C. megacephala, we performed RNA-sequencing and digital gene expression (DGE) profiling using Solexa/Illumina sequencing technology. A total of 39,098,662 clean reads were assembled into 27,588 unigenes with a mean length of 768 nt. All unigenes were searched against the Nt database, Nr database, Swiss-Prot, Cluster of Orthologous Groups (COG) and Kyoto Encyclopedia of Genes and Genome (KEGG) with the BLASTn or BLASTx algorithm (E-valueinsect.

Development of a dry artificial diet for Nezara viridula (L.) and Euschistus heros (Fabricius) (Heteroptera: Pentatomidae)

International Nuclear Information System (INIS)

Fortes, Priscila; Parra, Jose R.P.; Panizzi, Antonio R.

2006-01-01

Artificial diets prepared with wheat germ, soybean protein, dextrosol, potato starch, sucrose, cellulose, soybean or sunflower oil, and vitamin solution for rearing Nezara viridula (L.) and Euschistus heros (Fabricius) were tested under controlled temperature (25 ± 1 deg C), RH (60 ± 10%), and photophase (14h). Three diets were tested and compared with the natural diet privet [soybean and peanut seeds and privet Ligustrum lucidum Ait. fruit (Oleaceae)]. All three artificial diets allowed full development. The diet containing sunflower oil was the most suitable for N. viridula while E. heros developed better on a diet composed of soybean oil. Data indicated that the artificial diets were inferior to the natural diet. The artificial diets were more adequate for E. heros. (author)

Development of a dry artificial diet for Nezara viridula (L.) and Euschistus heros (Fabricius) (Heteroptera: Pentatomidae)

Energy Technology Data Exchange (ETDEWEB)

Fortes, Priscila; Parra, Jose R.P. [Universidade de Sao Paulo (USP), Piracicaba, SP (Brazil). Escola Superior de Agricultura Luiz de Queiroz (ESALQ). Dept. Entomologia, Fitopatologia e Zoologia Agricola; Magro, Sandra R. [Faculdade Integrada de Campo Mourao, PR (Brazil); Panizzi, Antonio R. [EMBRAPA, Londrina, PR (Brazil). Centro Nacional de Pesquisa de Soja

2006-09-15

Artificial diets prepared with wheat germ, soybean protein, dextrosol, potato starch, sucrose, cellulose, soybean or sunflower oil, and vitamin solution for rearing Nezara viridula (L.) and Euschistus heros (Fabricius) were tested under controlled temperature (25 {+-} 1 deg C), RH (60 {+-} 10%), and photophase (14h). Three diets were tested and compared with the natural diet privet [soybean and peanut seeds and privet Ligustrum lucidum Ait. fruit (Oleaceae)]. All three artificial diets allowed full development. The diet containing sunflower oil was the most suitable for N. viridula while E. heros developed better on a diet composed of soybean oil. Data indicated that the artificial diets were inferior to the natural diet. The artificial diets were more adequate for E. heros. (author)

Male meiosis in Crustacea: synapsis, recombination, epigenetics and fertility in Daphnia magna.

Science.gov (United States)

Gómez, Rocío; Van Damme, Kay; Gosálvez, Jaime; Morán, Eugenio Sánchez; Colbourne, John K

2016-09-01

We present the first detailed cytological study of male meiosis in Daphnia (Crustacea: Branchiopoda: Cladocera)-an aquatic microcrustacean with a cyclical parthenogenetic life cycle. Using immunostaining of the testes in Daphnia magna for baseline knowledge, we characterized the different stages of meiotic division and spermiogenesis in relation to the distribution of proteins involved in synapsis, early recombination events and sister chromatid cohesion. We also studied post-translational histone modifications in male spermatocytes, in relation to the dynamic chromatin progression of meiosis. Finally, we applied a DNA fragmentation test to measure sperm quality of D. magna, with respect to levels of inbreeding. As a proxy for fertility, this technique may be used to assess the reproductive health of a sentinel species of aquatic ecosystems. Daphnia proves to be a model species for comparative studies of meiosis that is poised to improve our understanding of the cytological basis of sexual and asexual reproduction.

A report of an aquatic beetle Eretes griseus (Fabricius, 1781 (Coleoptera: Dytiscidae: Dytiscinae: Eretini from the Western Ghats and other parts of Maharashtra, India

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Sayali D. Sheth

2014-11-01

Full Text Available This note is the first authentic record of the dytiscid species Eretes griseus (Fabricius, 1781 from the Western Ghats of Maharashtra, India. It was found only from three localities (essentially isolated temporary pools out of 50+ localities sampled so far in the year 2013-2014. We provide light microscopic images of the habitus, SEM images of important diagnostic characteristics and also clarify the status and distribution of this species in India. 

Biologia de Centris Fabricius (Hymenoptera, Anthophoridae, Centridini em matas contínuas e fragmentos na Amazônia Central Biology of Centris Fabricius (Hymenoptera, Anthophoridae, Centridini in continuous forest and fragments in Central Amazonia

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Elder F. Morato

1999-01-01

Full Text Available A study of four tree-hole nesting bee species of Centris Fabricius, 1804 was conducted between July, 1988 and June, 1990 in isolated and continuous "terra firme" forests at Manaus region. Nests were obtained from wood trap-nests of different diameters and consisted of a linear series of brood cells. Centris dichrootricha (Moure, 1945 and C. terminata Smith, 1874 were the most abundant species. Centris terminata nested principally in gaps and continuous forest and C. dichrootricha in cleared areas and small fragments of forest. More nests were obtained in trap-nests placed at 8 and 15 m height above ground. Nesting activity was more pronounced in the wet season between August and January. Natural enemies are the beetle Tetraonyx Latreille, 1805 and the bees Coelioxys Latreille, 1809, Mesocheira Lepeletier & Serville, 1825 and Mesoplia Lepeletier, 1841. Nest architecture of Centris spp. are described.

Toxic Effects of Couroupita guianensis Against Spodoptera litura (Fabricius) (Lepidoptera: Noctuidae).

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Baskar, K; Ignacimuthu, S; Jayakumar, M

2015-02-01

Laboratory experiments were conducted to find out the efficacy of different crude extracts and fractions of Couroupita guianensis (Lecythidaceae) against Spodoptera litura (Fabricius). Results revealed that hexane, chloroform and ethyl acetate extracts of C. guianensis showed larvicidal and pupicidal activities against S. litura. Maximum larvicidal activity (68.66%) was observed in hexane extract at 5.0% concentration followed by chloroform and ethyl acetate extracts, and least LC50 value of 2.64% was observed in hexane extract. A 100% pupicidal activity was observed in hexane extract. Based on the efficacy of crude extracts, the effective crude extract (hexane extract) was further fractionated and subjected to screening for biological activities against S. litura. Among the eight fractions isolated from the hexane extract, fraction 8 showed maximum antifeedant activity (81. 8%) and larvicidal activity (76.9%) at 1000-ppm concentration; this fraction showed least LC50 value of 375.92 ppm for larvicidal activity. Cent per cent pupicidal activity was recorded. Reduced midgut and hemolymph protein contents were observed at 1000 ppm of fraction 8. Histopathological studies revealed that fraction 8 severely damaged the midgut cells of S. litura. This fraction could be used to develop botanical formulation to control agricultural pests.

Characterization of chitinolytic bacteria and histological aspects of Shell Disease Syndrome in European spiny lobsters (Palinurus elephas) (Fabricius 1787).

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Mancuso, M; Costanzo, M T; Maricchiolo, G; Gristina, M; Zaccone, R; Cuccu, D; Genovese, L

2010-07-01

The present research reports the first description of Shell Disease Syndrome in European spiny lobsters Palinurus elephas (Fabricius 1787), which occurred in an experimental aquaculture facility in Sicily (Italy). Both bacterial characterization and histopathological examination of the exoskeleton at site of lesions was carried out. Infected specimens showed tail fan erosions, and in one case uropod ulceration and complete loss of periods. Identified species included: Listonella anguillarum 50.5%, Vibrio parahaemolyticus 27.5% and Vibrio alginolyticus 22%. Microscopic evaluation of lesions indicate the presence of inflammatory responses, which include melanization and pseudomembrane formation, similar to those described for other crustaceans affected by SDS. (c) 2010 Elsevier Inc. All rights reserved.

Detection of immunoglobulins containing plasma cells in the thymus, bursa of Fabricius and spleen of vaccinated broiler chickens with Newcastle disease virus vaccine

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Md. Abdul Masum

2014-12-01

Full Text Available Mobilization of immunoglobulins (Igs-containing plasma cells (IgA, IgG and IgM in the spleen, bursa of Fabricius and thymus was investigated in broiler chickens that were vaccinated with Newcastle disease virus (NDV vaccine. In the thymus, the Igs-containing plasma cells were distributed in the cortex and medulla. Their frequency and distribution were higher at D14 and at D28. The number of IgG- and IgM-positive cells was greater than IgA-positive cells in thymus. In the bursa of Fabricius, Igs-containing plasma cells were distributed beneath the capsules; within and around the bursal follicles. Their frequency of occurrence significantly peaked at D14 and at D28 in comparison to day-old chickens, and IgG-positive cells were significantly greater than the IgA- and IgM-positive cells in the bursa of vaccinated chickens. In the spleen, Igs-containing plasma cells were distributed in the white pulp, around the trabeculae, and in the periarterial lymphatic sheath. In this secondary lymphatic tissue, IgG- and IgM-positive cell numbers significantly greater than IgA-positive cells. In conclusion, mobilization of more Igs-positive cells in lymphoid tissues of broiler chickens is due to the effect of NDV vaccine as well as the advancement of age.

Evaluation of the haematological parameters in Piaractus mesopotamicus Holmberg (Osteichthyes, Characidae with Argulus sp. (Crustacea, Branchiura infestation and treatment with organophosphate

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Marcos Tavares-Dias

1999-06-01

Full Text Available Haematological parameters as erythrocytes, leukocytes and plasma glucose in Piaractus mesopotamicus Holmberg, 1887 were analyzed. Fish were parasitized with Argulus sp. (Crustacea, Branchiura and treated with 0.4 mg of thriclorphon 500/L water. The effects of parasitism and the action of the treatment were evaluated. Parasitized fish showed greater number of monocytes (P>0.05 and special granulocitic cells (P0.05. Organophosphate treatment presented significantly reduction (P>0.05 in red blood cells (RBC and hemoglobin.

Bioprospection of immature salivary glands of Chrysomya megacephala (Fabricius, 1794) (Diptera: Calliphoridae).

Science.gov (United States)

Caleffe, Ronaldo Roberto Tait; de Oliveira, Stefany Rodrigues; Gigliolli, Adriana Aparecida Sinópolis; Ruvolo-Takasusuki, Maria Claudia Colla; Conte, Helio

2018-06-08

Larval therapy (LT) comprises the application of sterile Calliphoridae larvae for wound debridement, disinfection, and healing in humans and animals. Larval digestion plays a key role in LT, where the salivary glands and gut produce and secrete proteolytic and antimicrobial substances. The objective of this work was to bioprospect the salivary glands of Chrysomya megacephala (Fabricius, 1794) larvae, using ultrastructural, morphological, and histological observations, and the total protein electrophoretic profile. The salivary glands present a deferent duct, originating from the buccal cavity, which bifurcates into efferent ducts that insert through a slight dilatation to a pair of tubular-shaped tissues, united in the region of fat cells. Histologically, the secretion had protein characteristics. Cell cytoplasm presented numerous free ribosomes, autophagic vacuoles, spherical and elongated mitochondria, atypical Golgi complexes, and dilated rough endoplasmic reticulum. In the apical cytoplasm, secretory granules and microvilli secretions demonstrated intense protein synthesis, basal cytoplasm with trachea insertions, and numerous mitochondria. The present work described the ultrastructure and morphology of C. megacephala third instar salivary glands, confirming intense protein synthesis and the molecular weight of soluble proteins. Copyright © 2018 Elsevier Ltd. All rights reserved.

Redescription of the orb-weaving spider Gasteracantha geminata (Fabricius, 1798) (Araneae, Araneidae).

Science.gov (United States)

Sankaran, Pradeep M; Jobi, Malamel J; Sebastian, Pothalil A

2015-02-02

The orb-weaving spider genus Gasteracantha Sundevall, 1833 (Araneidae) is notable for its pronounced sexual size dimorphism. Gasteracantha females are characterized by having a highly sclerotized "spiny" abdomen varying in relative size and number of spines, as well as abdomen dorsally and ventrally provided with varying numbers of sigillae (Cambridge 1879). The genus currently includes 70 described species and 31 subspecies (World Spider Catalog 2014). The Oriental species Gasteracantha geminata (Fabricius, 1798) was originally described from Ramnad (now known as Ramanathapuram) in Tamilnadu State of Southern India based on an unspecified number of female specimen(s). The female of this species has been described and illustrated several times by various authors. Its male is only known from the description of Simon (1895). Simon's original description of the male of G. geminata was supported by two simple but beautiful and informative illustrations: a retrolateral view of the cephalothorax and a dorsal view of the abdomen (Simon 1895, figs. 886, 887). However we lack a clear and detailed description of the male genitalia. The present paper provides detailed redescription of G. geminata and illustrations of the male pedipalp. 

Investigations on the metabolism of metals in decapod crustaceas in relation with moulting cycles and reproduction

International Nuclear Information System (INIS)

Martin, J.-L.M.

1975-07-01

A study of the metabolism of metals was carried out in decapod crustaceas; it showed that it was subject to cyclic variations during the life of the animals, closely correlated with growth moults. The metabolism of metals was also considered in its relations with reproduction, especially oogenesis and spermatogenesis, and embryonic development. In relation with moult, various factors playing a role on metal metabolism were investigated: role of metals in the organism, fasting and nutrition cycles and biochemical reserves, physico-chemical form of the metal and ultrastructure of uptake surfaces. The histological and histochemical aspects of the uptake of a number of metals were studied as well as inter-metallic and inter-organic relationships [fr

Uranium concentration by Crustacea: a structural, ultrastructural and microanalytical study by secondary ion emission and electron probe X ray microanalysis

International Nuclear Information System (INIS)

Chassard-Bouchaud, Colette

1982-01-01

Experimental intoxications were performed on the Crayfish Pontastacus leptodactylus using hydrosoluble uranium nitrate. Investigations demonstrate that Crustacea are able to concentrate both uranium main radioactive isotopes 238 U and 235 U within the cuticle, gill epithelium, midgut gland (=hepatopancreas) and macrophagic hemocytes. The storage occurs within nucleus and lysosomal system where uranium is precipitated in the form of an unsoluble phosphate. The proposed hypothesis for the metal extrusion is the following: residual bodies containing the uranium precipitates are extruded into the extracellular space where they are absorbed by phagocytosis, by the macrophagic hemocytes [fr

Işıklı Gölü ve Kaynaklarının (Çivril-Denizli Crustacea Faunası.

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Cem Aygen

2015-12-01

Full Text Available Bu çalışmada, Işıklı Gölü Crustacea faunasının taksonomik açıdan incelenmesi hedeflenmiştir. Bu amaçla Şubat 1998-Ocak 1999 ayları arasında, gölde ve göle akan kaynak bölgesinde belirlenen 6 istasyondan aylık periyotlarla biyolojik örnekler ve su örnekleri alınmıştır. Araştırma sonunda Işıklı Gölü ve Kaynağı’nda bulunan Crustacea faunasının başlıca Cladocera (16 tür, Copepoda (12 tür, Ostracoda (1 tür, Amphipoda (2 tür, Isopoda (1 tür, Mysidacea (1 tür ve Decapoda (1 tür gruplarından oluştuğu saptanmıştır. Tespit edilen türlerden Cladocera grubundan Diaphanosoma brachyurum, Diaphanosoma mongolianum, Ceriodaphnia pulchella, Simocephalus vetulus, Macrothrix laticornis, Alona rectangula, Alona guttata, Graptoleberis testudinaria, Leydigia leydigi, Biapertura affinis, Chydorus sphaericus, Pleuroxus aduncus ve Disparalona rostrata; Copepoda grubundan Macrocyclops albidus, Eucyclops serrulatus, Eucyclops speratus, Eucyclops macruroides, Metacyclops gracilis, Mesocyclops leuckarti, Cyclops vicinus, Cyclops abyssorum, Cyclops strenuus, Megacyclops viridis, Acanthocyclops robustus, Canthocamptus staphylinus; Ostracoda grubundan Psychrodromus olivaceus; Amphipoda grubundan Gammarus balcanicus, Gammarus obnixus; Isopoda grubundan Asellus aquaticus türleri Işıklı Gölü’nden ilk kez bildirilmektedir

Defensive behavior associated with secretions from the prosternal paired glands of the larvae of Heliconius erato phyllis Fabricius (Lepidoptera, Nymphalidae

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Eliane de Oliveira Borges

2014-06-01

Full Text Available Defensive behavior associated with secretions from the prosternal paired glands of the larvae of Heliconius erato phyllis Fabricius (Lepidoptera, Nymphalidae. Our work presents for the first time, the defensive behavior associated with the release of the product of the prosternal paired glands of the larva of Heliconius erato phyllis Fabricius, 1775 (Lepidoptera, Nymphalidae, Heliconiinae. The prosternal glands were first described for larvae of H. erato phyllis. They are formed by two types of glandular structures: the impair gland and the paired glands. The prosternal glands are located within the conical integumentary sac, which in turn is situated on the individual's prosternum. The main goal of this study is to analyze the existence of any secretion from the prosternal paired glands, and check the action mode of this secretion. The methodology used for chemical analysis of the glands included the aeration and, analysis in gas chromatography and gas chromatography-mass spectrometry. The results show that the prosternal glands do not produce volatiles. Bioassays were conducted with simulated and natural attacks and revealed that the prosternal paired glands produce secretions of defense together with silk produced by labials glands as a defense strategy, described for the first time, against ants. The strategy consists in wrapping the ant with silk threads, the entire wrapped object moved to the end of the body, with the aid of the legs and prolegs, and possibly fixed in a nearby place. Evidence for the existence of a conical integumentary sac in larvae of other species and families of Lepidoptera allows us to propose the possibility of occurrence of prosternal paired glands with defensive function in these other groups as well.

Pollination of Habenaria pleiophylla Hoehne & Schlechter (Orchidaceae by Heliconius erato phyllis Fabricius (Lepidoptera, Nymphalidae

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Gilson R.P Moreira

1996-01-01

Full Text Available For the first time the pollination of a poorly known, terrestrial orchid, Habenaria pleiophylla Hoehne & Schlechter, 1921 (Orchidaceae by a passion vine butterfly, Heliconius erato phyllis (Fabricius, 1775 (Lepidoptera, Nymphalidae is reported. Number of pollinia-carrying individuals was determined on a population of H. erato phyllis in Horto Florestal Barba Negra, Barra do Ribeiro County, Rio Grande do Sul State. The pollination mechanism was described under laboratory conditions, in association with the butterfly feeding habit and the orchid flower morphology. Habenaria pleiophylla pollinia are cemented during nectar feeding on the ventral portion of the compound eyes near H. erato phyllis proboscis base. The pollinia are transferred to the stigma of other flowers during subsequent visits. Both males and females of H. eralo phyllis frequently visit H. pleiophylla flowers in the Barba Negra Forest. About forty percent of field collected adults had attached pollinia, ranging in number from one to 19 per individual. Thus, H. eralo phyllis may play an important role in the reproductive biology of this H. pleiophylla population.

Intersexuality in Crustacea: an environmental issue?

Science.gov (United States)

Ford, Alex T

2012-02-01

This paper aims to give a historical overview of current understanding about intersexuality in crustaceans, assesses gaps in our knowledge and asks whether it should be an environmental concern. The oldest known cases of intersexuality come from 70 million year old fossil crabs whilst the oldest published case of intersex crustacean stems from a 1730 Royal Society report of a gynandromorph lobster. Many crustacean species are sequential hermaphroditic or simultaneous hermaphrodites. Consequently, there has been confusion as to whether accounts of intersex in the literature are correct. Intersexuality is fairly common throughout the Crustacea and it has been suggested that intersex may arise through different mechanisms. For example, sexual gynandromorphism may arise through disruption in early embryonic development whereas intersexuality may also arise through perturbations of androgenic gland hormone and sexual differentiation in later development. The causes of intersex are multifaceted and can occur through a number of mechanisms including parasitism, environmental sex determination, genetic abnormalities and increasingly pollution is being implicated. Despite many studies on the effects of endocrine disrupters on crustaceans, very few have focussed on wild populations or male related endpoints; rather many laboratory studies have been attempting to assess biomarkers of feminisation. This is surprising as many of the seminal papers on endocrine disruption focussed on effects found in the wild and male specimens. This paper argues that we might have been addressing the right questions (i.e. pollution induced intersex), but in the wrong way (feminisation); and therefore gives recommendations for future directions for research. Biomarker development has been hampered by paucity of genomic and endocrine knowledge of many crustacean model species; however this is rapidly changing with the advent of cheaper affordable genomic techniques and high throughput sequencing

Effect of dietary pigment on growth performance and disease resistance in black tiger shrimp post larva (Penaeus monodon, Fabricius

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Boonyaratpalin, M.

2005-02-01

Full Text Available Effects of dietary pigment on survival and disease (white spot syndrome virus: WSSV resistance in black tiger shrimp post larva (Penaeus monodon, Fabricius (PL15 for a 30-day period were studied. The results showed that not only was mean survival of black tiger shrimp (PL15 fed with supplementation of Lucarotene or Betatene at 125 mg/kg diet significantly higher (P<0.05 but also the body color was increased. There were no effects of dietary pigment on mean weight, percent weight gain and WSSV resistance. However, mean WSSV resistance of black tiger shrimp (PL15 fed diet containing Lucantin pink 50 mg/kg diet, Spirulina 30 g/kg diet or Betatene 125 mg/kg diet was higher than that of control.

The genus Hippolyte Leach, 1814 (Crustacea: Decapoda: Caridea: Hippolytidae) in the East Atlantic Ocean and the Mediterranean Sea, with a checklist of all species in the genus

NARCIS (Netherlands)

d'Udekem d'Acoz, C.

1996-01-01

The genus Hippolyte Leach in the East Atlantic and the Mediterranean is revised and a list of the world species is given. Eleven species occur in the area studied: H. coerulescens (Fabricius), H. garciarasoi spec. nov., H. inermis Leach, H. lagarderei d'Udekem d'Acoz, H. leptocerus (Heller), H.

Length and weight relationship of laboratory reared penaeid prawn Penaeus monodon (Fabricius) (Crustacea: Penaeidae)

Digital Repository Service at National Institute of Oceanography (India)

Saldanha, C.M.; Chatterji, A.

A parabolic relationship was obtained while studying the length-weight relationship of the postlarvae of Penaeus monodon. The b value (multiplying constant) showed that in the laboratory reared penaeid prawns, length-weight relationship strictly...

Developmental Times of Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae) at Constant Temperatures and Applications in Forensic Entomology.

Science.gov (United States)

Yang, Yong-Qiang; Li, Xue-Bo; Shao, Ru-Yue; Lyu, Zhou; Li, Hong-Wei; Li, Gen-Ping; Xu, Lyu-Zi; Wan, Li-Hua

2016-09-01

The characteristic life stages of infesting blowflies (Calliphoridae) such as Chrysomya megacephala (Fabricius) are powerful evidence for estimating the death time of a corpse, but an established reference of developmental times for local blowfly species is required. We determined the developmental rates of C. megacephala from southwest China at seven constant temperatures (16-34°C). Isomegalen and isomorphen diagrams were constructed based on the larval length and time for each developmental event (first ecdysis, second ecdysis, wandering, pupariation, and eclosion), at each temperature. A thermal summation model was constructed by estimating the developmental threshold temperature D0 and the thermal summation constant K. The thermal summation model indicated that, for complete development from egg hatching to eclosion, D0 = 9.07 ± 0.54°C and K = 3991.07 ± 187.26 h °C. This reference can increase the accuracy of estimations of postmortem intervals in China by predicting the growth of C. megacephala. © 2016 American Academy of Forensic Sciences.

Els isòpodes terrestres (Crustacea: Isopoda: Oniscidea) del Parc Natural de l’illa de sa Dragonera (Illes Balears, Mediterrània occidental)

OpenAIRE

Garcia, Ll.

2008-01-01

S’han recol·lectat 17 espècies d’isòpodes terrestres (Crustacea: Oniscidea) al Parc natural de l’illa de sa Dragonera, situada al sud-oest de l’illa de Mallorca (Espanya, Illes Balears, Mediterrània occidental). En el decurs de vàries expedicions realitzades a l’illa en els anys 1989, 1999, 2000, 2005 i 2006 s’han capturat aproximadament 400 exemplars, directament a mà o mitjançant trampes de caiguda. Fins aleshores únicament s’havia citat a sa Dragonera una espècie d’Oniscidea...

The forgotten type specimen of the grey seal (Halichoerus grypus (Fabricius, 1791)) from the island of Amager, Denmark

DEFF Research Database (Denmark)

Olsen, Morten Tange; Galatius, Anders; Biard, Vincent

2016-01-01

The conservation and management of biological diversity rely heavily on clear definitions of appropriate target units, such as populations, subspecies and species. However, the nomenclature of the grey seal [Halichoerus grypus (Fabricius 1791)] has for many years been misled by two persistent...... assumptions; that there was no type specimen for the species and that the type locality lay in Greenland. Here, we describe a grey seal skull held in the collections of the Natural History Museum of Denmark, and present written and morphological evidence to demonstrate that this skull is identical...... to Fabricius’ original specimen collected in 1788 near Copenhagen on the island of Amager, Denmark. In addition, we perform genetic analyses to clearly affiliate this specimen with the Baltic grey seal subspecies. Accordingly, we appoint this specimen (ZMUC M11-1525) the holotype of the grey seal...

Desempenho reprodutivo de Nasonia vitripennis Walker (Hymenoptera: Pteromalidae em pupas crioconservadas de Chrysomya megacephala Fabricius (Diptera: Calliphoridae: avaliação preliminar Reproductive performance of Nasonia vitripennis Walker (Hymenoptera: Pteromalidae on Chrysomya megacephala Fabricius (Diptera: Calliphoridae cryopreserved pupae: preliminary evaluation

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Eliane Maria Vieira Milward-de-Azevedo

2004-02-01

Full Text Available Avaliou-se o desempenho reprodutivo de Nasonia vitripennis Walker (Hymenoptera: Pteromalidae em pupas de Chrysomya megacephala Fabricius (Diptera: Calliphoridae previamente armazenadas a - 20ºC de temperatura, durante 77 dias, com e sem passagem prévia em nitrogênio líquido (NL por um, três e 15 minutos. O grupo controle foi caracterizado por pupas hospedeiras frescas. Os muscóides foram expostos aos parasitóides durante 72 horas. Utilizou-se a relação de uma pupa muscóide por fêmea parasitóide. A amostra de pupas frescas permitiu a emergência de 15 parasitóides/ pupa, em média, enquanto 10 parasitóides / pupa emergiram dos espécimens prévia e diretamente armazenados em freezer (-20ºC. Observou-se um acentuado decréscimo do desempenho reprodutivo dos microhimenópteros que exploraram os substratos previamente submetidos ao NL durante um, três e 15 minutos (: 6,1; 5,5 e 5,7, respectivamente. A dissecação das pupas hospedeiras revelou um expressivo número de pteromalídeos imaturos, nas amostras que foram expostas ao NL, e de adultos faratos, em todos os tratamentosThe reproductive performance of Nasonia vitripennis Walker (Hymenoptera: Pteromalidae was evaluated on pupae of Chrysomya megacephala Fabricius (Diptera: Calliphoridae kept at -20ºC, during 77 days, with and no previous passage for liquid nitrogen (NL by one, three and 15 minutes. Control groups were characterized for fresh pupae hosts. There was one pupa for each parasitoid. The sample of fresh pupae exhibited average of 15 emergent parasitoids / pupa while pupae stored directly at freezer (-20ºC presented an average of 10 emergent parasitoids / pupa. In the samples exposed at one, three and 15 minutes in NL, accentuated decrease was observed on emergent hymenopterans reproductive performance (: 6.1; 5.5 and 5.7 respectively. The dissection of pupae revealed a large number of immature pteromalid in the groups with liquid nitrogen passage and farate adults in

Concurrent Fowlpox and Candidiasis Diseases in Backyard Chickens with Unusual Pox Lesions in the Bursa of Fabricius.

Science.gov (United States)

Ogasawara, Fusae; Yamamoto, Yu; Sato, Yasuo; Fukunari, Kazuhiro; Murata, Ken-Ichi; Yaegashi, Gakuji; Goto, Makiko; Murakami, Ryukoh

2016-09-01

Concurrent fowlpox and candidiasis diseases occurred in a backyard chicken flock. Four deceased chickens (one Nagoya breed and three white silkie chickens) were examined for diagnosis. At necropsy, white curd-like plaques were observed in the crop. Fungal elements that stained positive for Candida albicans with immunohistochemistry were distributed throughout the tongue, choanal mucosa, esophagus, and crop. Typical fowlpox lesions, composed of proliferating epithelial cells with ballooning degeneration and viral intracytoplasmic inclusions, were observed in the conjunctiva, nasal mucosa, and skin around the cloaca. Interestingly, hyperplastic interfollicular epithelium with rare virus inclusions was observed in the bursa of Fabricius (BF). Some bursal follicles were replaced by proliferating epithelial cells. These proliferating cells immunohistochemically stained positive for cytokeratin. PCR and subsequent genetic sequencing detected the C. albicans gene in the crop, and fowlpox virus genes in the BF. These results indicate that this outbreak was a rare presentation of fowlpox in spontaneously infected chickens, with unusual pox lesions in the BF.

A note on the occurrence of praniza larvae of Gnathiidae (Crustacea, Isopoda on fishes from Northeast of Pará, Brazil

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Daniel G. Diniz

2008-12-01

Full Text Available The infection of the estuarine teleost fishes Mugil gaimardianus Desmarest, 1831 (Mugilidae, Arius phrygiatus Valenciennes, 1839 (Ariidae, Conodon nobilis Linnaeus, 1759 (Haemulidae, Cetengraulis edentulus Cuvier, 1829 (Engraulidae, and Anableps anableps Linnaeus, 1758 (Anablepidae by praniza larvae of Gnathiidae (Crustacea, Isopoda was studied in specimens fished off the Atlantic Ocean in Northeast of Pará State, near Bragança, Brazil. The highest infection prevalence value was found in Anableps anableps (42.3% and the lowest in Conodon nobilis (9.1%. The mean intensity varied from 1 parasitein Conodon nobilis to 19.5 in Arius phrygiatus. A description of the larvae is provided. The morphology of the mouthparts is related to the blood sucking activity, and is compared with the characteristics of other gnathiidae species.Foi estudada a parasitose dos peixes estuarinos Mugil gaimardianus Desmarest, 1831 (Mugilidae, Arius phrygiatus Valenciennes, 1839 (Ariidae, Conodon nobilis Linnaeus, 1759 (Haemulidae, Cetengraulis edentulus Cuvier, 1829 (Engraulidae, e Anableps anableps Linnaeus, 1758 (Anablepidae por larvas praniza de Gnathiidae (Crustacea, Isopoda em exemplares pescados no Oceano Atlântico, no Nordeste do Pará, próximo a Bragança, Brasil. O valor mais elevado da prevalência da infecção foi observado em A. anableps (42,3% e o menor em C. nobilis (9,1%. A intensidade média da parasitose variou entre 1 parasita em C. nobilis até 19,5 em A. phrygiatus. Efetua-se a descrição da larva, verificando-se que a morfologia da armadura bucal está relacionada com a atividade sugadora de sangue, e faz-se a comparação com as características de outras espécies.

First identification of nanoparticles on thorax, abdomen and wings of the worker bee Apis dorsata Fabricius

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Bhattacharyya Atanu

2016-06-01

Full Text Available The presence of nanoparticles on the body of the honeybee Apis dorsata Fabricius, was investigated for the first time to better understand the bee’s behaviour. These have been observed by using Scanning Electron Microscopy (SEM, Transmission Electron Microscopy (TEM and confirmed by Atomic Force Microscopy (AFM. Our study clearly denotes that the Indian rock honey bee Apis dorsata possess calcium silicate and calcium phosphate nanoparticles on its body surface of 5-50 nm in diameter. In particular, the nanoparticles on the abdomen and thorax of A. dorsata have an average diameter of about 10 nanometers and they are smaller than those found on wings of the same bees which are about 20 nanometers. The nanoparticles found are different of the ones previously observed on honey bees or other insects. The origin and role of these natural nanoparticles on the body of the Indian rock bee need to be to be further investigated; more research in the subject might raise important aspects in relation to the conservation of these unique pollinators.

Some gamma radiation (60Co) effects on Chrysomya megacephala (Fabricius, 1794) (Diptira-Calliphoridae)

International Nuclear Information System (INIS)

Garcia, C.R.

1987-03-01

The effect of different gama radiation ( 60 Co) doses on Chrysomya megcephala (Fabricius) have been studied under laboratory conditions, in the Entomology Section of Centro de Energia Nuclear na Agricultura (CENA-USP), Piracicaba, SP, Brasil. The insects were collected close to sucking animals brooding areas, identified and reared on artificial diet, being kept in a temperature (26 +- 2 0 C) and humidity (66 +- 9%) controlled room, with 12L:12D photopheriod. A Gammabeam type 650 Cobalt-60 gamma irradiation source was used, with 28, 196x10 10 Bq activity at the beginning of the experiment. The pupae were submitted to increasing gamma radiation doses. To determine lethal doses, treatments were carried out at four different ages and to determine the sterilizing doses two-three day pupae were used. It was noted pupae radiosensitivity decreased with age, LD 50 varying from 14 - 513 Gy. The sterilizing dose for males was 40 Gy and for females 30 Gy. During the individuals life cycle, it was noted that there was a decrease in life expectancy (e x o ) of adults when the gamma radiation dose was increased. Treated males were more sensitive than females (Crossed with ''normals''), there occurring a marked reduction in the number of eggs and their viability when the used gamma radiation dose was increased. (author) [pt

Distribuição e abundância dos caranguejos Uca Leach (Crustacea, Decapoda, Ocypodidae na Baía de Guaratuba, Paraná, Brasil Distribution and abundance of fiddler crabs Uca Leach (Crustacea Decapoda Ocypodidae in Guaratuba Bay, Parana State, southern Brazil

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Setuko Masunari

2006-12-01

Full Text Available Um estudo sobre distribuição espacial e abundância dos chama-marés Uca Leach, 1814 foi realizado na Baía de Guaratuba, Estado do Paraná. Foram coletados chama-marés de dez biótopos ao longo de um gradiente de salinidade de zero a 32 dentro da Baía de Guaratuba. Foram obtidas sete espécies, entre as quais, Uca mordax (Smith, 1870 que foi registrada somente em biótopos inundados por águas de baixas salinidades (de zero a 16. As demais espécies mostraram tolerância a uma ampla variação de salinidade, mas Uca maracoani (Latreille, 1802-1803 e Uca leptodactyla Rathbun, 1898 predominaram em águas mais salinas, de 14 a 32, enquanto U. burgersi Holthuis, 1967, Uca rapax (Smith, 1870, Uca thayeri Rathbun, 1900 e Uca uruguayensis Nobili, 1901 foram coletadas em mais de três biótopos e mostraram uma tendência ao eurihalismo, suportando salinidades de 4 a 32. Entretanto, outras características do substrato tais como porcentagem relativa de cascalho/areia/silte/argila, teor de matéria orgânica e presença de marismas, também, influenciaram a distribuição espacial destes caranguejos. U. leptodactyla foi registrada com densidade máxima de 240 ind.m-2, o mais alto valor conhecido.A study of the spatial distribution and abundance of fiddler crabs was carried out in Guaratuba Bay, Parana State, southern Brazil. Fiddler crabs were collected from 10 biotopes located along a salinity gradient from zero to 32 inside Guaratuba Bay (between 48°30'W-25°50'S and 48°45'W-25°54'S. Seven species were found, among which, Uca mordax (Smith, 1870 occurred only in biotopes inundated by low salinity water, from zero to 16. Remaining species tolerated wide range of salinity oscillation, but Uca maracoani (Latreille, 1802-1803 and Uca leptodactyla Rathbun, 1898 predominated in saltier waters, from 14 to 32, while U. burgersi Holthuis, 1967, Uca rapax (Smith, 1870, Uca thayeri Rathbun, 1900, and Uca uruguayensis Nobili, 1901 were collected in more than three biotopes and showed to be euryhaline: they tolerated salinities from 4 to 32. However, other soil characteristics such as pebble/sand/silt/clay balance, organic matter content and presence of seagrass also influenced the spatial distribution of these crabs. U. leptodactyla occurred with maximum density of 240 ind.m-2, a highest recorded value.

Gonad development in females of fiddler crab Uca rapax (Crustacea, Brachyura, Ocypodidae using macro and microscopic techniques Desenvolvimento da gônada em fêmeas do caranguejo-violinista Uca rapax (Crustacea, Brachyura, Ocypodidae utilizando técnicas macro e microscópicas

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Daniela da Silva Castiglioni

2007-12-01

Full Text Available The morphology of the ovaries in Uca rapax (Smith, 1870 was described based on macroscopic and microscopic analysis. Females were collected in Itamambuca mangrove, Ubatuba, state of São Paulo, Brazil. In the laboratory, 18 females had their ovaries removed and prepared for histology. Each gonad developmental stage was previously determined based on external and macroscopic morphology and afterwards each stage was microscopically described. The ovaries of U. rapax showed a pronounced macroscopic differentiation in size and coloration with the maturation of the gonad, with six ovarian developmental stages: immature, rudimentary, developing, developed, advanced and spent. During the vitellogenesis, the amount of oocytes in secondary stage increases in the ovary, resulting in a change in coloration of the gonad. Oogonias, primary oocytes, secondary oocytes and follicular cells were histologically described and measured. In female’s ovaries of U. rapax the modifications observed in the oocytes during the process of gonad maturation are similar to descriptions of gonads of other females of brachyuran crustaceans. The similarities are specially found in the morphological changes in the reproductive cells, and also in the presence and arrange of follicle cells during the process of ovary maturation. When external morphological characteristics of the gonads were compared to histological descriptions, it was possible to observe modifications that characterize the process in different developmental stages throughout the ovarian cycle and, consequently, the macroscopic classification of gonad stages agree with the modifications of the reproductive cells.A morfologia dos ovários de Uca rapax foi descrita baseada nas análises macroscópica e microscópica. As fêmeas foram coletadas no manguezal de Itamambuca, Ubatuba, Estado de São Paulo, Brasil. No laboratório, os ovários de 18 fêmeas foram retirados e preparados para histologia. Os estágios gonadais foram caracterizados previamente por meio de análises da morfologia externa e macroscopia e posteriormente cada estágio foi descrito microscopicamente. Os ovários das fêmeas de U. rapax apresentaram uma diferenciação macroscópica pronunciada no tamanho e coloração durante o processo de maturação, sendo caracterizados seis estágios de desenvolvimento ovariano: imaturo, rudimentar, em desenvolvimento, desenvolvido, avançado e esgotado. Microscopicamente, estes estágios diferiram quanto ao tamanho, cor e proporção de oogônias e oócitos presentes. Na análise histológica, oogônias, oócitos primários e secundários e células foliculares foram descritos e mensurados. As modificações observadas nos oócitos durante o processo de maturação dos ovários das fêmeas de U. rapax são similares às descrições de gônadas de outras fêmeas de braquiúros. As semelhanças foram especialmente observadas nas mudanças morfológicas das células reprodutivas e, também no arranjo das células foliculares durante o processo de maturação ovariana. Quando as características morfológicas externas das gônadas foram comparadas com as descrições histológicas, foi possível observar modificações que caracterizam o processo em diferentes estágios de desenvolvimento do ciclo ovariano e conseqüentemente, a classificação macroscópica das gônadas coincide com as modificações nas células reprodutivas.

Pengaruh Jenis Mangsa dan Suhu pada Perkembangan Menochilus sexmaculatus Fabricius (Coleoptera: Coccinellidae dan Peranannya dalam Pengendalian Diaphorina citri Kuwayama (Hemiptera: Psyllidae

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Tris Haris Ramadhan

2008-07-01

Full Text Available Diaphorina citri Kuwayama (Hemiptera: Psyllidae is the vector of citrus greening (Huanglongbing bacterium and the most serious impediment to citrus culture. Classical biological control of this psyllid vector should contribute to suppress their population. This research was conducted to determine the performance of Menochilus sexmaculatus Fabricius (Coleoptera: Coccinellidae when they were fed with D. citri. The larval performance index of M. sexmaculatus on D. citri compared with Aphis craccivora Koch (Hemiptera: Aphididae diet was 1.3.M. sexmaculatus fed with D. citri had lower fitness than those fed with A. craccivora as shown by longer larval stadium, lower adult dry weight, less number of egg produced and lower percentage of egg hatched. M. sexmaculatus grew best at the temperature of 27oC. Employing the exclusion procedure under field condition,M. sexmaculatus could reduce the population of D. citri up to 90%. These findings showed that theM. sexmaculatus could be a potential predator in reducing D. citri, particularly when the more preferred prey A. craccivora was not present.   Diaphorina citri Kuwayama (Hemiptera: Psyllidae merupakan kelompok Psyllid yang menularkan penyebab penyakit Huanglongbing yang sangat berbahaya pada tanaman jeruk. Pengendalian hayati klasik telah banyak memberikan kontribusi dalam pengendalian di lapangan. Penelitian ini dilakukan untuk melihat penampilan Menochilus sexmaculatus Fabricius (Coleoptera: Coccinellidae dengan pakan D. citri. Indeks penampilan larva M. sexmaculatus dengan pakan D. citri dibandingkan dengan Aphis craccivora Koch (Hemiptera: Aphididae adalah 1,3. M. sexmaculatus yang diberi pakan D. citri menunjukkan penurunan kebugaran dibandingkan jika diberi pakan A. craccivora seperti yang ditunjukkan dengan stadium larva lebih lama, penurunan berat kering serangga dewasa, telur yang dihasilkan lebih sedikit, dan penurunan jumlah telur yang menetas. Menggunakan metode eksklusi pada kondisi

Jamaica's Critically Endangered Butterfly: A Review of the Biology and Conservation Status of the Homerus Swallowtail (Papilio (Pterourus) homerus Fabricius).

Science.gov (United States)

Lehnert, Matthew S; Kramer, Valerie R; Rawlins, John E; Verdecia, Vanessa; Daniels, Jaret C

2017-07-10

The Homerus swallowtail, Papilio ( Pterourus ) homerus Fabricius, is listed as an endangered species and is endemic to the Caribbean island of Jamaica. The largest butterfly in the Western Hemisphere, P. homerus once inhabited seven of Jamaica's 14 parishes and consisted of at least three populations; however, now only two stronghold populations remain, a western population in the rugged Cockpit Country and an eastern population in the Blue and John Crow Mountains. Despite numerous studies of its life history, much about the population biology, including estimates of total numbers of individuals in each population, remains unknown. In addition, a breeding program is needed to establish an experimental population, which could be used to augment wild populations and ensure the continued survival of the species. Here, we present a review of the biology of P. homerus and recommendations for a conservation plan.

Radiolabelling of Chrysomya megacephala (Fabricius, 1794) (Diptera, Calliphoridae) and rearing of Belonuchus rufipennis (Fabricius, 1801) (Coleoptera, Staphylinidae) on eggs of this fly

International Nuclear Information System (INIS)

Garcia, C.R.

1993-01-01

The possibility of the radiolabelling method for Chrysomya megacephala (Fabricius, 1794) (Diptera, Calliphoridae) was studied. Five males from 0 to 16 hours of age proceeding from artificial rearing, were labelled through its diet. The radioisotope used was Phosphorus-32, in the chemical form of sodium phosphate (Na 2 H 32 P O 4 ), mixed into a sucrose solution of 10% sugar. After 25 hours of labelling and feeding period, each male was placed into a cage together with 20 females of the same age, for mating. The radioactivity of each male and of the genitalia of each female was verified through liquid scintillation counting. It was observed that the males showed high activity levels, above 1,7 x 10 6 counts per minute at an average of 3,1 x 10 6 cpm. Much smaller and more variable was the activity showed by the genitalia of the females: between 123 and 35.323 cpm, at an average of 2.986 cpm. As a conclusion it could be observed that the methodology of tagging this species of flies with radioactive phosphorus is perfectly suitable for ecological and behavioural studies. During the experiments of radiolabelling it could be observed that the predator Belonuchus rufipennis (Fabr., 1801) (Col., Staphylinidae) caused severe attack to recently laid eggs of the flies. To verify the possibility of rearing this insect in the laboratory, adults of the predator were maintained into Petri dishes containing eggs and water. Eggs of the predator, newly hatched larvae, pupae and adults were transferred separately into other Petri dishes for daily observations. As results it could be observed that the egg phase of the predator was two days. The development of the larvae is 10,7 days, and 5,9 days of the pupae. As a remark it could be observed that the eggs of the flies were well accepted by the predator even if dead, after maintenance into a freezer. As a final conclusion it could be confirmed that rearing of Belonuchus rufipennis is perfectly feasible under laboratory conditions

Histomorphology of bursa of Fabricius: effects of stock densities on commercial broilers

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EC Muniz

2006-12-01

Full Text Available During the past few years, there has been considerable interest on the effects of stocking density on broiler behavior and immunity. Stress may cause immunodeficiency by affecting cell and humoral responses, as well as body weight decrease, and foot-pad dermatitis. The aim of this study was to study histomorphological changes of the bursa of Fabricius in broilers submitted to three different stocking densities (10, 15, and 20 birds/m² from one to 42 days of age. Three birds from each group were sacrifieced on days 7 and 42. The bursa was collected, fixed, and processed for histomorphometric assessment using a Kontrom KS 400 image analyzer. Data were analyzed by Biostat 3.0 (Tukey Test. The results of average cortical area percentage in bursal follicles of 6-week-old birds were 45.12a (10 birds/m², 30.43b (15 birds/m², and 23.77b (20 birds/m². Average body weight was 2.58a kg (10 birds/m², 2.56a Kg (15 birds/m², and 2.47b Kg (20 birds/m², respectively. The percentage of foot-pad dermatitis in 6-week-old birds was 3.33a (10 birds/m², 17.76b (15 birds/m², and 49.17c (20 birds/m². These differences were statistically significant at a P<0.05 level. Under these experimental conditions,, it was concluded that the best stocking density to produce broilers is between 10-15 birds per square meter.

Relative growth of the mangrove crab Ucides cordatus (Linnaeus, 1763 (Crustacea, Brachyura, Ocypodidae at Iguape, São Paulo, Brazil

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Marcelo Antonio Amaro Pinheiro

2006-09-01

Full Text Available A total of 2,130 individuals of Ucides cordatus (1,255 males and 875 females were captured in a mangrove forest at Iguape, São Paulo, Brazil. For each crab, the following body structures were measured: carapace (width = CW; length = CL; depth = CD, 5th abdominal somite (AW, major chelar propodus (length = PL; width = PW; depth = PD, and 1st and 2nd gonopod pairs (length = GL1 and GL2. The Student "t" and Snedecor "F" tests were used to verify any changes in growth allometric rates during ontogeny. The relationships CLxCW, PLxCW (for both sexes, GL1xCW and GL2xCW (males and AWxCW (females, showed a better fit by two equations for the juvenile and adult phases (p 59 mm. Females showed a similar size interval: (juvenile CW 58 mm.Um total de 2,130 indivíduos de U. cordatus (1,255 machos e 875 fêmeas foi coletado em Iguape (SP, Brasil. Cada exemplar foi submetido à biometria das seguintes estruturas: cefalotórax (largura = CW; comprimento = CL; altura = CD, quinto somito abdominal (AW, própodo quelar (comprimento = PL; espessura = PW; altura = PD, e 1º e 2º par de gonopódios (comprimento = GL1 e GL2. O teste "t" Student e "F" de Snedecor foram utilizados para identificar diferenças no grau de alometria e alterações ontogenéticas na taxa de crescimento, respectivamente. As relações CLxCW, PLxCW (ambos os sexos, GL1xCW e GL2xCW (machos e AWxCW (fêmeas, apresentaram ajuste por duas equações representando a fase jovem e adulta (p59mm, com tamanho similar ao dos morfotipos das fêmeas (jovens CW58mm.

Predação de sementes de Allagoptera arenaria (Gomes O'Kuntze (Arecaceae por Pachymerus nucleorum Fabricius (Coleoptera, Chrysomelidae, Bruchinae Seed predation on Allagoptera arenaria (Gomes O'Kuntze (Arecaceae by Pachymerus nucleorum Fabricius (Coleoptera, Chrysomelidae, Bruchinae

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Viviane Grenha

2008-01-01

Full Text Available A predação de sementes da palmeira Allagoptera arenaria (Gomes O'Kuntze, 1891(Arecaceae por Pachymerus nucleorum Fabricius, 1972 foi avaliada de setembro de 2003 a setembro de 2005 no Parque Nacional da Restinga de Jurubatiba (RJ. A biologia e o comportamento de P. nucleorum em A. arenaria e as taxas de predação de sementes foram descritas. Frutos encontrados sob 50 palmeiras foram coletados, mensalmente, em cada uma das duas áreas amostradas no PNRJ (mata de cordão arenoso e formação arbustiva aberta de Clusia Sclthdl, Clusiaceae. A avaliação dos cocos predados foi feita a partir da contagem dos orifícios de saída dos bruquíneos no campo, da emergência dos insetos no laboratório e da abertura dos frutos remanescentes. Através de observações e experimentos em 60 infrutescências, verificou-se que a oviposição de Pachymerus nucleorum em A. arenaria ocorre na infrutescência ainda em desenvolvimento diferentemente de registros na literatura em outras espécies de palmeiras, onde a oviposição ocorre nos frutos no chão. A predação dos frutos por P. nucleorum foi de 29,3% na área de mata de cordão arenoso e 20,6% na formação arbustiva aberta de Clusia. O ciclo de vida de P. nucleorum foi bastante longo e com amplitudes bem grandes dentro de uma mesma amostra, o que sugere uma possível diapausa em alguma fase do seu ciclo de vida.Seed predation on Allagoptera arenaria (Gomes O'Kuntze, 1891(Arecaceae palm by Pachymerus nucleorum Fabricius, 1972 was evaluated from September 2003 to September 2005 at the Parque Nacional da Restinga de Jurubatiba (PNRJ, Rio de Janeiro, Brazil. The biology and behaviour of P. nucleorum on A. arenaria and predation rates were described. Fruits found beneath 50 palms were collected, monthly, for each one of the two sampled areas at PNRJ (ridge forest and Clusia Sclthdl (Clusiaceae open shrubland formation. The evaluation of preyed fruits was done by counting exit holes of Bruchinae in the field

Storage of Euschistus heros Eggs (Fabricius) (Hemiptera: Pentatomidae) in Liquid Nitrogen for Parasitization by Telenomus podisi Ashmead (Hymenoptera: Platygastridae).

Science.gov (United States)

Favetti, B M; Butnariu, A R; Doetzer, A K

2014-06-01

Records in the literature with regard to the influence of freezing of pentatomid eggs on parasitism by microhymenopterans are scarce. In this research, we compared the storage of Euschistus heros (Fabricius) (Hemiptera: Pentatomidae) eggs in liquid nitrogen for different periods with the objective of optimizing the multiplication of Telenomus podisi Ashmead (Hymenoptera: Platygastridae) in the laboratory. Fresh eggs of E. heros were exposed (S3, S6) or not (NS3, NS6) to UV light for 30 min and stored in 1.5-mL plastic vials in liquid nitrogen either for 3 (S3, NS3) or 6 months (S6, NS6), and egg suitability to parasitoid development was compared to control eggs exposed (SC) or not (NSC) to UV treatment. Global data analysis showed that E. heros eggs stored in liquid nitrogen with or without UV treatment, for 3 or 6 months, were suitable for T. podisi parasitization.

Comparison of Penaeus monodon (Crustacea,Penaeidae) growth between commercial feed vscommercial shrimp feed supplemented with Kappaphycus alvarezii (Rhodophyta, Solieriaceae)seaweed sap

OpenAIRE

Kotiya Anil S.; Gunalan Balakrishanan; Jetani Kanji L.; Solanki Jitesh B.; Ramchandran Kumaran

2011-01-01

The consumer of seafood relates the potential development of animals to the constant use of commercial growth promoters. Nevertheless, nowadays with the development of non antibiotic feed additives, cultured shrimps performance has improved to great level. Present experiment was carried conducted from 27th May 2009 to 11th October 2009 in shrimp grow out ponds at Diu (U.T) region of Saurashtra coast. The stocking density of tiger shrimp Penaeus monodon Fabricius, 1798 was 7.5 no/m2 in both th...

Indigenous Knowledge of the Edible Weaver Ant Oecophylla smaragdina Fabricius Hymenoptera: Formicidae from the Vientiane Plain, Lao PDR

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Joost Van Itterbeeck

2014-01-01

Full Text Available Of major importance in realizing the potential of edible insects as a core element in improving food security, sustainable food production, and biodiversity conservation, are developments in sustainable exploitation of wild edible insect populations and in (semi-cultivating and farming edible insects. Such developments can draw on both western science and indigenous knowledge. Oecophylla smaragdina Fabricius Hymenoptera: Formicidae, of which particularly the queen brood is commonly consumed in Thailand and the Lao PDR, is believed to have the potential to act as flagship/umbrella species in forest conservation and management, to be incorporated simultaneously as biological control agent and direct source of human food in agroforestry practices, and to be (semi-cultivated. We provide a detailed account of indigenous knowledge of O. smaragdina and ant brood collection practices from the Vientiane Plain, Lao PDR, through focus group discussions and participant observations, and then reflect on sustainability and conservation issues, and on semi-cultivating constraints and possibilities embedded in indigenous knowledge and ant brood collection practices. 

Paleocene decapod Crustacea from northeastern Mexico: Additions to biostratigraphy and diversity

Science.gov (United States)

Martínez-Díaz, José Luis; Aguillón-Martínez, Martha Carolina; Luque, Javier; Vega, Francisco J.

2017-03-01

New decapod specimens from mid-Paleocene shallow marine deposits of NE Mexico represents an important addition to the diversity, paleobiogeography and evolution of the Crustacea record. In this work, we describe additions to the decapod assemblage from the Paleocene (Selandian) Rancho Nuevo Formation (Difunta Group, Parras Basin, Coahuila). Due to the evident size differences with other decapod assemblages, we compare the new assemblage with those from the Lower Paleocene (Danian) Mexia Clay Member of the Wills Point Formation, Texas, and the Lower Eocene (Ypresian) El Bosque Formation in Chiapas. Species reported from the mid-Paleocene (Selandian) assemblage of the Porters Creek Formation (Alabama), are correlatable to the decapod species from NE Mexico in age, size and systematic composition. The erymid lobster Enoploclytia gardnerae (Rathbun, 1935) is represented by several carapaces and chelae remains. One isolated palm of Callianassidae is included. Numerous carapaces of Linuparus wilcoxensis Rathbun, 1935 are described, representing the most abundant lobster. A new record for the raninid Notopoides sp., and presence of Quasilaeviranina sp. cf. arzignagnensis and Quasilaeviranina ovalis are here reported. New raninids, Claudioranina latacantha sp. nov. and Claudioranina sp. (Cyrtorhininae) are also part of this assemblage. Paraverrucoides alabamensis (Rathbun, 1935), and Tehuacana americana (Rathbun, 1935) are represented by several carapaces exhibiting intraspecific morphological variation. Different sizes among the Early and Middle Paleocene and Early Eocene decapod populations suggests a possible effect of variation in seawater temperatures and/or a Lilliput effect after the K/Pg event.

Estimation of the adult male population of sweet potato weevil, Cylas formicarius (Fabricius) at its low-density period on Kikai Island in Japan

International Nuclear Information System (INIS)

Yamaguchi, T.; Hatono, T.; Izumi, S.; Nishihara, S.; Kimura, K.; Torigoe, H.; Tanaka, T.; Miyaji, K.; Hara, Y.; Ueda, A.; Shigei, F.

2008-01-01

The sweet potato weevil, Cylas formicarius (Fabricius) is a major insect pest of the sweet potato, Ipomoea batatas (L.) Lam. throughout the tropical and subtropical regions of the world. We estimated the entire adult male population of C. formicarius at its low-density period on Kikai Island, Kagoshima Pref., Japan. The population of adult males at the high-density period in September was about 5 times larger than that at its low-density period in May, both of which were estimated by Yamamura's method. Using this calculation in combination with an estimate of the maximal population size (4 x 10E6) by Sugimoto et al. in 1994, the total number of male weevils at their low-density period can be assumed to be less than 8 x 10E5

Induction of inherited sterility and sex ratio distribution due to exposure to substerilising doses of gamma radiation in cotton bollworm Earias vittella fabricius

International Nuclear Information System (INIS)

Tamhankar, A.J.; Shantharam, K.

2005-01-01

Substerilising doses of gamma radiation induced inherited sterility and sex ratio distortion in the cotton bollworm Earias vittella fabricius. Adults irradiated with 75 Gy and self-crossed, provided sterile F 1 adults, suitable for direct use in sterile insect technique (SIT). In case of 50 Gy, the F 1 adults, when backcrossed, produced F 2 progeny with sex ratio in favour of females (1: >3). With 25 Gy, a sex ratio distortion was recorded in F 1 (1 male: 2.25 females) and self-crossing of F 1 resulted in progeny with a sex ratio of 3:1. Backcrossing of the F 1 female produced F 2 progeny with a sex ratio of 1:5. These results have implications in improving cost/benefit ratio of SIT for this species. (author)

The mitochondrial genome of the German wasp Vespula germanica (Fabricius, 1793) (Hymenoptera: Vespoidea: Vespidae).

Science.gov (United States)

Zhou, Yuan; Hu, Yu-Lin; Xu, Zai-Fu; Wei, Shu-Jun

2016-07-01

The mitochondrial genome of the German wasp Vespula germanica (Fabricius, 1793) (Hymenoptera: Vespidae) (GenBank accession no. KR703583) was sequenced in the study. It represents the first mitochondrial genome from the genus Vespula. There are totally 163 42 bp in the currently sequenced portion of the genome, containing 13 protein-coding, two rRNA, and 18 tRNA genes and a partial A + T-rich region. Four tRNA genes of trnI, trnQ, trnM and trnY located at the downstream of the A + T-rich region were failed to sequence. At least two rearrangement events occurred in the sequenced region compared with the pupative ancestral arrangement of insects, corresponding to the translocation or remote inversion of tnnY from trnW-trnC-trnY cluster to the region of trnI-trnQ-trnM cluster and translocation of trnL1 from the downstream to the upstream of nad1 gene. All protein-coding genes start with ATN codons. Twelve and one protein-coding genes stop with termination codon TAA and T, respectively. Phylogenetic analysis using the Bayesian method based on all codon positions of the 13 protein-coding genes supports the monophyly of Vespidae and Formicidae. Within the Formicidae, the Myrmicinae and Formicinae form a sister group and then sister to the Dolichoderinae, while within the Vespidae, the Eumeninae sister to the lineage of Vespinae + Polistinae.

Biodiversidad marina de Costa Rica: Crustacea: Infraorden Anomura

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Rita Vargas

2006-06-01

Full Text Available El grupo de los cangrejos anomuros es uno de los mejor conocidos de la costa Pacífica de Costa Rica, pero muy poco conocidos de la costa Caribe. En esta recopilación, basada en la literatura y en las colecciones del Museo de Zoología, Escuela de Biología, Universidad de Costa Rica, informamos de la presencia de 114 especies del Infraorden Anomura en Costa Rica, 20 especies del Caribe, 96 especies del Pacífico, y dos especies presentes en ambas costa. Veintinueve especies son informes nuevos para Costa Rica, 15 del Caribe (75% del total de especies informadas para esa costa y 14 del Pacífica (15% del total de esa costa. La distribución de diez especies es ampliada hasta Costa Rica, siete en el Caribe y tres en el Pacífico. Seis especies son informadas por primera vez para la Isla del Coco, donde además hay cuatro especies endémicas.Marine biodiversity of Costa Rica: Crustacea: Infraorder Anomura. The anomuran crabs are among the best known crustacean groups from the Pacific coast. However, this group is poorly known from the Caribbean coast of Costa Rica. In this compilation based on the literature and the collection at the Zoology Museum, Biology School, University of Costa Rica, we report the presence of 114 species of the Infraorder Anomura for Costa Rica, 20 species from the Caribbean, 96 species from the Pacific (two are present on both coasts. Twenty-nine species are new reports for Costa Rica, 15 from the Caribbean coast (74% of the total of species from that coast and 14 from the Pacific (15% of the total from the Pacific. The range of ten species is extended to Costa Rica, siete from the Caribbean and three from the Pacific. Six species are reported for the first time from Cocos Island, where there are also four endemic species. Rev. Biol. Trop. 54(2: 461-488. Epub 2006 Jun 01.

Dinâmica populacional e parasitismo de Himenópteros parasitóides de Chrysomya megacephala (Fabricius (Diptera, Calliphoridae, no Rio de Janeiro, RJ Population dynamics and parasitism of hymenopterans parasitoids of Chrysomya megacephala (Fabricius (Diptera, Calliphoridae, in Rio de Janeiro city, Brazil

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Alessandra Ribeiro de Carvalho

2005-03-01

Full Text Available Este estudo foi realizado no período de agosto de 1999 a julho de 2000 com o objetivo de conhecer os parasitóides de Chrysomya megacephala (Fabricius, 1794 (Diptera, Calliphoridae e avaliar sua dinâmica populacional no Instituto Oswaldo Cruz (IOC/ FIOCRUZ e Jardim Zoológico, na cidade do Rio de Janeiro, RJ. As coletas foram realizadas semanalmente através da exposição de larvas de terceiro instar da mosca e seu substrato de criação, carne bovina moída em putrefação. Foram identificadas três espécies de himenópteros parasitóides: Tachinaephagus zealandicus Ashmead, 1904 (Encyrtidae, Pachycrepoideus vindemiae (Rondani, 1875 (Pteromalidae and Nasonia vitripennis (Walker, 1836 (Pteromalidae. Nos dois locais, T. zealandicus foi a espécie com maior taxa de parasitismo de C. megacephala, seguida por P. vindemiae e N. vitripennis. A população de parasitóides diminuiu drasticamente no verão (temperatura média = 28°C; precipitação = 6,5 mm.O pico populacional desses insetos foi verificado no final do outono e durante todo o inverno. No Jardim Zoológico, o lixo acumulado no local de coleta exerceu forte influência na dinâmica populacional dos himenópteros parasitóides identificados nesse estudo e o pico populacional de parasitismo foi verificado em junho e julho de 2000.This study was carried out from August 1999 to July 2000 to evaluate the population dynamics and to know the parasitoids of Chrysomya megacephala (Fabricius, 1794 at the Instituto Oswaldo Cruz (IOC/ FIOCRUZ and Jardim Zoológico, in Rio de Janeiro City. Samplings were conducted weekly with third instar larvae of the fly and putrefying ground beef. It was identified three species of hymenopterans parasitoids: Tachinaephagus zealandicus Ashmead, 1904 (Encyrtidae, Pachycrepoideus vindemiae (Rondani, 1875 (Pteromalidae and Nasonia vitripennis (Walker, 1836 (Pteromalidae. In both sampling areas, T. zealandicus was the species with the highest parasitism rate of C

The Gene Ontology Differs in Bursa of Fabricius Between Two Breeds of Ducks Post Hatching by Enriching the Differentially Expressed Genes

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H Liu

Full Text Available ABSTRACT The bursa of Fabricius (BF is the central humoral immune organ unique to birds. The present study investigated the possible difference on a molecular level between two duck breeds. The digital gene expression profiling (DGE technology was used to enrich the differentially expressed genes (DEGs in BF between the Jianchang and Nonghua-P strains of ducks. DGE data identified 195 DEGs in the bursa. Gene Ontology (GO analysis suggested that DEGs were mainly enriched in the metabolic pathways and ribosome components. Pathways analysis identified the spliceosome, RNA transport, RNA degradation process, Jak-STAT signaling pathway, TNF signaling pathway and B cell receptor signaling pathway. The results indicated that the main difference in the BF between the two duck strains was in the capabilities of protein formation and B cell development. These data have revealed the main divergence in the BF on a molecular level between genetically different duck breeds and may help to perform molecular breeding programs in poultry in the future.

Composition, Abundance and Distribution of Brachyuran Larvae in ...

African Journals Online (AJOL)

... Ocypodidae, Grapsidae and Xanthidae. Abundance of brachyuran larvae was significantly positively correlated with total zooplankton abundance (r2 = 0.8) and salinity (r2 = 0.71). Keywords: Brachyuran larvae, abundance, composition, Mida creek, Kenya West Indian Ocean Journal of Marine Science Vol. 3 (2) 2004: pp.

Time of Death Revealed by Hydrocarbons of Empty Puparia of Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae): A Field Experiment

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Zhu, Guang-Hui; Yu, Xiao-Jun; Xie, Liang-Xing; Luo, Hao; Wang, Dian; Lv, Jun-Yao; Xu, Xiao-Hu

2013-01-01

Determination of the postmortem interval (PMI) is crucial for investigating homicide. However, there are currently only limited methods available. Especially, once the PMI exceeds the duration of pre-adult development of the flies with the adult emergence, its determination is very approximate. Herein, we report the regular changes in hydrocarbon composition during the weathering process of the puparia in the field in Chrysomya megacephala (Fabricius) (Diptera: Calliphoridae), one of the common species of necrophagous flies. Correlation analysis showed that the relative abundance of nearly all of the branched alkanes and alkenes decreased significantly with the weathering time. Especially, for 9 of the peaks, over 88% of the variance in their abundance was explained by weathering time. Further analysis indicated that the regular changes caused mainly by the different weathering rates of various hydrocarbons. Additionally, the weathering rates were found to depend on the chemical structure and molecular weight of the hydrocarbons. These results indicate strongly that hydrocarbon analysis is a powerful tool for determining the weathering time of the necrophagous fly puparia, and is expected to markedly improve the determination of the late PMI. PMID:24039855

Brain architecture of the largest living land arthropod, the Giant Robber Crab Birgus latro (Crustacea, Anomura, Coenobitidae: evidence for a prominent central olfactory pathway?

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Krieger Jakob

2010-09-01

Full Text Available Abstract Background Several lineages within the Crustacea conquered land independently during evolution, thereby requiring physiological adaptations for a semi-terrestrial or even a fully terrestrial lifestyle. Birgus latro Linnaeus, 1767, the giant robber crab or coconut crab (Anomura, Coenobitidae, is the largest land-living arthropod and inhabits Indo-Pacific islands such as Christmas Island. B. latro has served as a model in numerous studies of physiological aspects related to the conquest of land by crustaceans. From an olfactory point of view, a transition from sea to land means that molecules need to be detected in gas phase instead of in water solution. Previous studies have provided physiological evidence that terrestrial hermit crabs (Coenobitidae such as B. latro have a sensitive and well differentiated sense of smell. Here we analyze the brain, in particular the olfactory processing areas of B. latro, by morphological analysis followed by 3 D reconstruction and immunocytochemical studies of synaptic proteins and a neuropeptide. Results The primary and secondary olfactory centers dominate the brain of B. latro and together account for ca. 40% of the neuropil volume in its brain. The paired olfactory neuropils are tripartite and composed of more than 1,000 columnar olfactory glomeruli, which are radially arranged around the periphery of the olfactory neuropils. The glomeruli are innervated ca. 90,000 local interneurons and ca. 160,000 projection neurons per side. The secondary olfactory centers, the paired hemiellipsoid neuropils, are targeted by the axons of these olfactory projection neurons. The projection neuron axonal branches make contact to ca. 250.000 interneurons (per side associated with the hemiellipsoid neuropils. The hemiellipsoid body neuropil is organized into parallel neuropil lamellae, a design that is quite unusual for decapod crustaceans. The architecture of the optic neuropils and areas associated with antenna two

Estudo comparado do desenvolvimento pós-embrionário de Cochliomyia macellaria (Fabricius (Diptera, Calliphoridae em duas dietas à base de carne, em laboratório Comparative studyy of post-embryonic development of Cochliomyia macellaria(Fabricius (Diptera, Calliphoridae under two meat diets, in laboratory

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Sandra L. da Cunha e Silva

1994-01-01

Full Text Available The influence of a diet based on putrid horse meat over the post-embryonic development of Cochliomyia macellaria (Fabricius, 1775 under controlled conditions (UR 65 10% and 14 hours of photophase was compared with the results obtained using a meat broth diet to which other sources of animal and vegetable protein were added. The flies were maintained at 30ºC, from egg until mature larvae spontaneously abandoned the diet. They were then transfered to a climatized chamber at 27ºC. The larvae and pupae viability and the weight of the mature larvae were significantly inferior, when a diet based on meat broth was used, even though the larvae period was significantly increased with this diet. This type of diet did not charge the time of development of the pupae. The inoculation of the egg mass directly over the diet was recommend, instead of the technique in which the egg masses are transfered to humid filter paper, followed by the handling of the recently ecloded larvae.

Espécies de Cladonia P. Browne (Cladoniaceae, Ascomycota dos Supergrupos Cocciferae, Crustaceae e Perviae em restingas e costões rochosos dos estados do Paraná e de Santa Catarina, Brasil Species of Cladonia P. Browne (Cladoniaceae, Ascomycota, of Supergroup Cocciferae, Crustaceae and Perviae, from restinga vegetation and rocky shores of Paraná and Santa Catarina, Brazil

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Emerson Luiz Gumboski

2012-09-01

Full Text Available Pouco se conhece das espécies de Cladonia que ocorrem nos estados do Paraná e de Santa Catarina. Informações sobre a ocorrência de liquens em restingas são muito escassas e não há qualquer registro para costões rochosos. O objetivo do trabalho foi realizar um levantamento intensivo das espécies de Cladonia presentes em áreas de restingas e costões rochosos presentes nos estados do Paraná e de Santa Catarina, sul do Brasil. Foram encontradas nove espécies pertencentes aos Supergrupos Cocciferae, Crustaceae e Perviae, sendo que Cladonia squamosa é nova citação para o Paraná e C. palmicola para Santa Catarina. Todas as espécies encontradas ocorrem em restingas e sete delas também em costões rochosos. São apresentadas chave de identificação, descrições, comentários e ilustrações.Little is known about the species of Cladonia that occur in the states of Paraná and Santa Catarina, in southern Brazil. Information about the occurrence of lichens in restinga (a type of coastal vegetation in Brazil is very scarce and there are no records from rocky shores. The main goal of the present work was to make an intensive survey of Cladonia species that grow in restinga and on the rocky shores of this region. Nine species belonging to Supergroups Cocciferae, Crustaceae and Perviae were found, and two of them were new records: Cladonia squamosa for Paraná and C. palmicola for Santa Catarina. All of the species recorded occur in restinga and seven of them are also found along rocky shores. An identification key, descriptions, comments and illustrations are provided.

Research on Biomimetic Models and Nanomechanical Behaviour of Membranous Wings of Chinese Bee Apis cerana cerana Fabricius

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Yanru Zhao

2018-01-01

Full Text Available The structures combining the veins and membranes of membranous wings of the Chinese bee Apis cerana cerana Fabricius into a whole have excellent load-resisting capacity. The membranous wings of Chinese bees were taken as research objects and the mechanical properties of a biomimetic model of membranous wings as targets. In order to understand and learn from the biosystem and then make technical innovation, the membranous wings of Chinese bees were simulated and analysed with reverse engineering and finite element method. The deformations and stress states of the finite element model of membranous wings were researched under the concentrated force, uniform load, and torque. It was found that the whole model deforms evenly and there are no unusual deformations arising. The displacements and deformations are small and transform uniformly. It was indicated that the veins and membranes combine well into a whole to transmit loads effectively, which illustrates the membranous wings of Chinese bees having excellent integral mechanical behaviour and structure stiffness. The realization of structure models of the membranous wings of Chinese bees and analysis of the relativity of structures and performances or functions will provide an inspiration for designing biomimetic thin-film materials with superior load-bearing capacity.

Occurrence of the lessepsian species Portunus pelagicus (Crustacea and Apogon pharaonis (Pisces in the marine area of Rhodes Island

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M. CORSINI-FOKA

2004-06-01

Full Text Available A large number of Red Sea species are colonizing the eastern Mediterranean Sea via the Suez Canal, mainly following the Anatolian coasts and spreading westwards. Portunus pelagicus is one of the most common Red Sea swimming crabs, first recorded in the Levantine Basin in 1898. Four specimens of P. pelagicus were collected in different marine areas of Rhodes Island from 1991 to 2000, while three specimens of the lessepsian fish Apogon pharaonis, first recorded in the Mediterranean in 1947, were caught during 2002 in the NW coast of Rhodes. The sub-tropical character of the marine area around Rhodes seems to facilitate the propagation of lessepsian species. These migrants have reached the island at different velocity and degree of establishment of their populations. The occurrence of the blue swimmer crab P. pelagicus and of the bullseye cardinal fish A. pharaonis increases the number of the decapod Crustacea and fish species of Red Sea origin observed in Greek waters.

Comparative life-histories, population dynamics and productivity of Schistomysis populations (Crustacea, Mysida) in European shelf environments

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San Vicente, Carlos; Sorbe, Jean Claude

2013-08-01

A biological study of suprabenthic mysids of genus Schistomysis (Crustacea, Mysida, Mysidae) was carried out based on quantitative samples collected in coastal waters of the SE Bay of Biscay (NE Atlantic) and the Catalan Sea (W Mediterranean). Aspects of the ecology of species noted during this study are summarized and the results of previous researches are incorporated. Small and large-scale environmental factors (swash and surf climate, depth, temperature, day-night and seasonal cycles) contributed significantly to population distributions. All Schistomysis populations are characterized by faster individual growth and earlier maturity at higher temperature, resulting in intensive recruitment during spring or summer seasons in combination with higher fecundity of genitors. Regarding productivity, our production and P/B¯ estimates ranged between 2255-26,321 mg AFDW/100 m3/year and 6.09-9.73, respectively. These production values are similar to those found for comparable marine mysids with two or three generations per year. The observed demographic heterogeneity and production of populations has ecological implications in the Bay of Biscay and Mediterranean areas, where Schistomysis species are dominant components of littoral and shelf suprabenthic communities.

Ciclo reprodutivo do caranguejo violinista Uca rapax (Smith (Crustacea, Brachyura, Ocypodidae habitante de um estuário degradado em Paraty, Rio de Janeiro, Brasil Reproductive cicle of the fiddler crab Uca rapax (Smith (Crustacea, Brachyura, Ocypodidae at a degraded estuary in Paraty, Rio de Janeiro, Brazil

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Daniela da S. Castiglioni

2006-06-01

Full Text Available Este trabalho descreve o ciclo reprodutivo de Uca rapax (Smith, 1870 baseado em observações do seu desenvolvimento gonadal e ciclo de muda em uma área de manguezal degradado em Paraty, Estado do Rio de Janeiro. Os caranguejos foram capturados por duas pessoas mensalmente (julho/2001 a junho/2002 durante 15 minutos por meio da técnica de esforço de captura em período de maré baixa. No laboratório, os caranguejos foram mensurados quanto à largura da carapaça (LC; sendo o sexo, a condição ovígera e o estágio gonadal anotados. Os estágios de desenvolvimento gonadal foram determinados por meio da observação macroscópica das gônadas e os estágios de muda através da observação do grau de enrijecimento do tegumento. Os caranguejos que apresentavam gônadas imaturas e rudimentares foram considerados imaturos enquanto os demais estágios gonadais, maduros. Obteve-se um total de 1558 espécimes, sendo 801 machos e 757 fêmeas (16 fêmeas ovígeras. As fêmeas ovígeras representaram apenas 3% da população, talvez pelo fato destas fêmeas permanecerem em suas tocas. Apesar de terem sido encontrados caranguejos com gônadas maduras ao longo de todo o ano, o período de maior atividade reprodutiva em U. rapax ocorre nos meses mais quentes do ano (primavera-verão. A freqüência de caranguejos em atividade de muda ao longo do período de estudo foi baixa (12,8% em relação aos caranguejos em intermuda. Provavelmente, U. rapax permaneça entocada nesse período crítico, que é a troca do exoesqueleto. Apesar de U.rapax ocorrer em um manguezal completamente degradado, o seu ciclo reprodutivo não foi afetado, quando comparado com de áreas não degradadas estudadas anteriormente. Tal fato pode ser sustentado pela presença de caranguejos potencialmente maduros ao longo do ano todo na área de estudo.This present work describes the reproductive cycle of Uca rapax (Smith, 1870 based on observations of their gonadal development and molt cycles in a degraded mangrove area in Paraty, State of Rio de Janeiro. Two collectors captured the crabs monthly (from July 2001 to June 2002 during 15 minutes by procedure of capture per unit effort in low tide periods. Crabs were sexed, measured (carapace width - CW; 0.01 mm precision and females were checked for eggs. Crab' stages of gonad development of both sexes were determined by direct and macroscopic observation and molt stage was estimated by the hardness of the tegument. A total of 1,558 specimens were collected, being 801 males and 757 females (16 ovigerous females. Ovigerous females accounted only about 3% of the population, perhaps because females usually remain underground in closed burrows during the incubation, which can not be seen easily in the field. Crabs with mature gonads were found year-round, but most reproduction in U. rapax occurred during the warmer months of the year (spring-summer. The frequency of crabs in molt activity was lower (12.8% than intermolt crabs. Probably, U. rapax burrowed in this critic period that is the change of exoskeleton, minimizing the risks imposed by the occurrence of a soft skeleton. Despite of U. rapax be occurring in a properly degraded mangrove, its reproductive cycle seems to be not affected by the habitat condition, when it is compared with areas of the mangroves no impacted by human action. This fact is supported by the presence of potentially mature crabs year-round at the study area.

Bioaccumulation in Porcellio scaber (Crustacea, Isopoda) as a measure of the EDTA remediation efficiency of metal-polluted soil

International Nuclear Information System (INIS)

Udovic, Metka; Drobne, Damjana; Lestan, Domen

2009-01-01

Leaching using EDTA applied to a Pb, Zn and Cd polluted soil significantly reduced soil metal concentrations and the pool of metals in labile soil fractions. Metal mobility (Toxicity Characteristic Leaching Procedure), phytoavailability (diethylenetriaminepentaacetic acid extraction) and human oral-bioavailability (Physiologically Based Extraction Test) were reduced by 85-92%, 68-91% and 88-95%, respectively. The metal accumulation capacity of the terrestrial isopod Porcellio scaber (Crustacea) was used as in vivo assay of metal bioavailability, before and after soil remediation. After feeding on metal contaminated soil for two weeks, P. scaber accumulated Pb, Zn and Cd in a concentration dependent manner. The amounts of accumulated metals were, however, higher than expected on the basis of extraction (in vitro) tests. The combined results of chemical extractions and the in vivo test with P. scaber provide a more relevant picture of the availability stripping of metals after soil remediation. - Bioaccumulation tests with Porcellio scaber isopods are proposed as a supplement to chemical extraction in assessing metal bioavailability before and after soil remediation.

The Hyalella (Crustacea: Amphipoda) species cloud of the ancient Lake Titicaca originated from multiple colonizations.

Science.gov (United States)

Adamowicz, Sarah J; Marinone, María Cristina; Menu-Marque, Silvina; Martin, Jeffrey W; Allen, Daniel C; Pyle, Michelle N; De Los Ríos, Patricio; Sobel, Crystal N; Ibañez, Carla; Pinto, Julio; Witt, Jonathan D S

2018-08-01

Ancient lakes are renowned for their exceptional diversity of endemic species. As model systems for the study of sympatric speciation, it is necessary to understand whether a given hypothesized species flock is of monophyletic or polyphyletic origin. Here, we present the first molecular characterization of the Hyalella (Crustacea: Amphipoda) species complex of Lake Titicaca, using COI and 28S DNA sequences, including samples from the connected Small and Large Lakes that comprise Lake Titicaca as well as from a broader survey of southern South American sites. At least five evolutionarily distant lineages are present within Lake Titicaca, which were estimated to have diverged from one another 12-20 MYA. These major lineages are dispersed throughout the broader South American Hyalella phylogeny, with each lineage representing at least one independent colonization of the lake. Moreover, complex genetic relationships are revealed between Lake Titicaca individuals and those from surrounding water bodies, which may be explained by repeated dispersal into and out of the lake, combined with parallel intralacustrine diversification within two separate clades. Although further work in deeper waters will be required to determine the number of species present and modes of diversification, our results strongly indicate that this amphipod species cloud is polyphyletic with a complex geographic history. Copyright © 2018 Elsevier Inc. All rights reserved.

Species diversity and phylogeographical affinities of the Branchiopoda (Crustacea) of Churchill, Manitoba, Canada.

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Jeffery, Nicholas W; Elías-Gutiérrez, Manuel; Adamowicz, Sarah J

2011-01-01

The region of Churchill, Manitoba, contains a wide variety of habitats representative of both the boreal forest and arctic tundra and has been used as a model site for biodiversity studies for nearly seven decades within Canada. Much previous work has been done in Churchill to study the Daphnia pulex species complex in particular, but no study has completed a wide-scale survey on the crustacean species that inhabit Churchill's aquatic ecosystems using molecular markers. We have employed DNA barcoding to study the diversity of the Branchiopoda (Crustacea) in a wide variety of freshwater habitats and to determine the likely origins of the Churchill fauna following the last glaciation. The standard animal barcode marker (COI) was sequenced for 327 specimens, and a 3% divergence threshold was used to delineate potential species. We found 42 provisional and valid branchiopod species from this survey alone, including several cryptic lineages, in comparison with the 25 previously recorded from previous ecological works. Using published sequence data, we explored the phylogeographic affinities of Churchill's branchiopods, finding that the Churchill fauna apparently originated from all directions from multiple glacial refugia (including southern, Beringian, and high arctic regions). Overall, these microcrustaceans are very diverse in Churchill and contain multiple species complexes. The present study introduces among the first sequences for some understudied genera, for which further work is required to delineate species boundaries and develop a more complete understanding of branchiopod diversity over a larger spatial scale.

Behavioral and olfactory antennal responses of Solenopsis geminata (Fabricius) (Hymenoptera: Formicidae) workers to their Dufour gland secretion

Energy Technology Data Exchange (ETDEWEB)

Brindis, Yolanda; Gomez y Gomez, Beningno; Rojas, Julio C.; Malo, Edi A.; Cruz-Lopez, Leopoldo [El Colegio de la Frontera Sur (ECOSUR), Tapachula, Chiapas (Mexico); Lachaud, Jean P. [Centre de Recherches sur la Cognition Animale (CRCA), CNRS-UMR5169, Toulouse (France). Univ. Paul-Sabatier

2008-03-15

Behavioral and electrophysiological tests were performed to evaluate the responses of workers of the ant Solenopsis geminata (Fabricius) from different size categories to Dufour gland extracts. Morphometric measures based in head widths across eyes were used to determine worker sizes. Trail following response of different worker sizes to Dufour gland extract from workers of different sizes was assessed. For each worker size category olfactory responses to Dufour gland extracts were determined using electroantennography (EAG). Gas chromatography and mass spectrometry (GC-MS) were used to determine the chromatographic profile of Dufour gland secretion for each worker size. Morphometric measures permitted to classify the workers of S. geminata as large, medium and small workers. Medium S. geminata workers displayed a significantly higher behavioral response to Dufour gland extracts produced by medium size workers. Similarly, medium workers showed a significantly higher EAG response to Dufour gland extracts produced by medium sized workers. Chromatographic profile of Dufour gland secretions produced by workers showed that each size category exhibited a characteristic profile of the three main components considered as potential trail pheromone constituents. This work showed that medium workers of S. geminata exhibited a high trail-following behavior as well as a high antennal response to Dufour gland secretion. This and their relative abundance in field foraging areas, suggest that medium-sized workers are specialized in foraging activities. (author)

Toxicity of Millettia ferruginea darasana (family: Fabaceae) against the larvae and adult ticks of Amblyomma variegatum Fabricius a three-host tick in cattle.

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Choudhury, Manash Kumar; Shiferaw, Yoseph; Hussen, Ahmed

2015-06-01

The in vitro toxicity of Millettia ferruginea darasana (family: Fabaceae) was tested against the larvae adult male and female of a three-host tick, Amblyomma variegatum Fabricius (family: Ixodidae or hard tick), known as 'tropical bont tick' parasitic mainly to cattle found in Ethiopia and other equatorial Africa. The 20, 40, 60, 80 and 100 % concentrations of the seed oil extracted with petroleum ether were found to kill all (100 % mortality) larvae after 12, 9, 6, 3 and 1.5 h respectively. The results summarized in the Table 1 was found to be statistically significant at the probability level of p = 0.05. The 100 % concentration of the oil caused 100 % mortality of adult male, adult female and fully engorged female tick after 5, 7 and 12 h respectively. The root and root bark showed less toxicity. The leaves did not show any toxicity. [Table: see text].

Population and reproductive biology of the fiddler crab Uca thayeri Rathbun, 1900 (Crustacea: Ocypodidae) in a tropical mangrove from Northeast Brazil

Science.gov (United States)

Arruda Bezerra, Luis Ernesto; Matthews-Cascon, Helena

2007-05-01

Population and reproductive biology of Uca thayeri Rathbun, 1900 were studied for the first time in a tropical mangrove. Absolute density, sex ratio, population structure, handedness, breeding season and fecundity were investigated. Seven transects were delimited in a mangrove area of the Pacoti River, Northeast of Brazil (3° 43' 02″ S/38° 32' 35″ W). On each transect, ten 0.25 m 2 squares were sampled on a monthly basis during low tide periods from September 2003 to August 2004. A total of 483 crabs were obtained, of which 250 were males, 219 non-ovigerous females, and 14 ovigerous females. The U. thayeri population presented bi-modal size frequency distribution, with males and non-ovigerous females not differing significantly size-wise. Ovigerous females were larger than males and non-ovigerous females. The overall sex ratio (1:1.07) did not differ significantly from the expected 1:1 proportion. The major cheliped was the right one in 50% of the males. The observed density was of 8.5 individuals/m 2, with the specimens being found mostly in shaded areas. Ovigerous females were found in 5 months of the year, coinciding with the rainy season, suggesting that the population of U. thayeri presents seasonal reproductive events. Juvenile crabs were more abundant during the dry period, while larger crabs were found mainly during the rainy period. The fecundity of the studied population was much smaller than that of subtropical populations of this species. The regression analysis shows that the number of eggs increases linearly with the increase of carapace width.

Sequence variation in the cytochrome oxidase subunit I and II genes of two commonly found blow fly species, Chrysomya megacephala (Fabricius) and Chrysomya rufifacies (Macquart) (Diptera: Calliphoridae) in Malaysia.

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Tan, Siew Hwa; Aris, Edah Mohd; Surin, Johari; Omar, Baharudin; Kurahashi, Hiromu; Mohamed, Zulqarnain

2009-08-01

The mitochondiral DNA region encompassing the cytochrome oxidase subunit I (COI) and cytochrome oxidase subunit II (COII) genes of two Malaysian blow fly species, Chrysomya megacephala (Fabricius) and Chrysomya rufifacies (Macquart) were studied. This region, which spans 2303bp and includes the COI, tRNA leucine and partial COII was sequenced from adult fly and larval specimens, and compared. Intraspecific variations were observed at 0.26% for Ch. megacephala and 0.17% for Ch. rufifacies, while sequence divergence between the two species was recorded at a minimum of 141 out of 2303 sites (6.12%). Results obtained in this study are comparable to published data, and thus support the use of DNA sequence to facilitate and complement morphology-based species identification.

Comparação da estrutura populacional das espécies de Uca (Crustacea: Decapoda: Ocypodidae no Manguezal de Itacuruçá, Rio de Janeiro, Brasil Comparison of the population structure of the species of Uca (Crustacea: Decapoda: Ocypodidae in the mangrove of Itacuruçá, Rio Janeiro, Brazil

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Luciane M. Bedê

2008-12-01

Full Text Available Este trabalho foi realizado no Manguezal de Itacuruçá, na Baía de Sepetiba com o objetivo de analisar a estrutura populacional das espécies de Uca Leach, 1814. Foram realizadas coletas de junho/2005 a maio/2006, durante as marés baixas. Os caranguejos foram capturados manualmente por duas pessoas e durante 15 minutos. Um total de 2580 animais foi coletado, sendo 1465 machos e 1115 fêmeas. Com relação ao tamanho dos indivíduos, observou-se que os animais do Manguezal de Itacuruçá, de maneira geral, apresentam tamanhos menores que os encontrados em outros manguezais do Brasil. Contudo, os machos atingiram tamanhos maiores do que as fêmeas. A distribuição de freqüência em todas as classes de tamanho foi unimodal para a maioria das espécies, com exceção de U. thayeri Rathbun, 1900 e U. vocator (Herbst, 1804, as quais não apresentaram um padrão definido. Os machos foram mais abundantes em todas as classes de maiores tamanhos. A razão sexual diferiu significativamente da proporção 1:1, estando deslocada para uma maior freqüência de machos, com exceção de U. thayeri e U. victoriana von Hagen, 1987, as quais tiveram predominância de fêmeas.This study was conducted in the Itacuruçá mangrove, in the Sepetiba Bay, Rio de Janeiro, Brazil, with the objective of investigating the population structure of the species of Uca Leach, 1814. Sampling was carried out monthly from June, 2005 to May, 2006, during low tides. Crabs were captured manually by two people for a period of 15 min each. A total of 2580 crabs were obtained, of which 1465 were males and 1115 were females. The size of the fiddler crabs in the mangrove of Itacuruçá were the smallest reported so far in Brazilian mangroves. However, males attained a larger size than females. The size frequency distribution was unimodal for most of species, with the exception of U. thayeri Rathbun, 1900 and U. vocator (Herbst, 1804, which did not show a clearly-defined pattern. Males were most abundant among the largest size classes. The sex ratio differed significantly from 1:1 (male: female, most often with a higher frequency of males, except for U. thayeri and U. victoriana von Hagen, 1987, in which females were predominant.

Comparação da estrutura populacional das espécies de Uca (Crustacea: Decapoda: Ocypodidae) no Manguezal de Itacuruçá, Rio de Janeiro, Brasil Comparison of the population structure of the species of Uca (Crustacea: Decapoda: Ocypodidae) in the mangrove of Itacuruçá, Rio Janeiro, Brazil

OpenAIRE

Luciane M. Bedê; Lídia M. Y. Oshiro; Luziane M. D. Mendes; Alessandra A. Silva

2008-01-01

Este trabalho foi realizado no Manguezal de Itacuruçá, na Baía de Sepetiba com o objetivo de analisar a estrutura populacional das espécies de Uca Leach, 1814. Foram realizadas coletas de junho/2005 a maio/2006, durante as marés baixas. Os caranguejos foram capturados manualmente por duas pessoas e durante 15 minutos. Um total de 2580 animais foi coletado, sendo 1465 machos e 1115 fêmeas. Com relação ao tamanho dos indivíduos, observou-se que os animais do Manguezal de Itacuruçá, de maneira g...

Effects of turmeric (Curcuma longa) and vitamin E on histopathological lesions induced in bursa of Fabricius of broiler chicks by salinomycin.

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Sayrafi, Reza; Mirzakhani, Navideh; Mobaseri, Reza

2017-01-01

The aim of this study was to evaluate the protective effects of the turmeric in comparison to vitamin E on bursal damages induced by salinomycin in broiler chickens. In this study, forty one day-old broiler chicks were randomly divided into four treatment groups: 1- basal diet as control, 2- basal diet plus salinomycin, 3- basal diet plus salinomycin (SLM) and vitamin E (Vit. E) and 4- basal diet plus salinomycin and turmeric powder. The chicks were treated for two weeks. At the end of the experiment, the bursal tissues were removed and fixed in 10% formalin solution. Tissue sections were stained with hematoxylin and eosin stain for histopathological studies. Light microscopic observations showed that, SLM diminished cortex thickness of bursal tissue, enhanced its medulla zone and caused severe lymphocytic necrosis. In addition, SLM led to fibrosis of interstitium along with sever edema of medulla zone in the bursal tissue of the chicken. Administration of Vit. E and TP significantly inhibited the SLM-induced derangements and comparing the Vit. E and TP showed no significant differences. The results of this study indicated that the turmeric may protect bursa of Fabricius against toxicity induced by salinomycin in chicks.

Exoskeletal proteins from the crab, Cancer pagurus

DEFF Research Database (Denmark)

Andersen, Svend Olav

1999-01-01

Crustacea; decapods; cuticle; exoskeleton; structural protein; amino acid sequence; mass spectrometry......Crustacea; decapods; cuticle; exoskeleton; structural protein; amino acid sequence; mass spectrometry...

Lunar-Rhythmic Molting in Laboratory Populations of the Noble Crayfish Astacus astacus (Crustacea, Astacidea): An Experimental Analysis

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Franke, Robert; Hoerstgen-Schwark, Gabriele

2013-01-01

Juvenile noble crayfish, Astacusastacus (Crustacea, Astacidea) in the second year of age were kept in the laboratory for a twelve-month period under continuing “summer conditions” (LD 16:8, 19°C). Molting processes in this population could be synchronized by artificial moonlight cycles. Peaks of exuviations occurred at “new moons”. Males showed a slightly higher degree of synchronization than females. A phase-shift of the artificial lunar cycle in relation to the natural cycle resulted in a corresponding shift of the molting cycle. This clearly demonstrates that changes in the nocturnal light regime provide the primary external information for the lunar-monthly molting rhythm. There is a first indication that lunar photic stimuli do not act directly but as a zeitgeber which entrains an endogenous molting rhythm to the lunar cycle. Moreover, the results of the long-term experiments suggest that the hibernal resting period of A . astacus in the field (no molts between October and April) may also involve some endogenous programming. Continuing artificial summer conditions can delay but not completely suppress this resting period. The adaptive significance of the phenomena and how the findings may be applied to improve the management of crowded crayfish stocks are discussed. PMID:23840899

First record of Parelasmopus setiger Chevreux, 1901 from Singapore, including synonymization of Parelasmopus siamensis Wongkamhaeng, Coleman & Pholpunthin, 2013 with Parelasmopus setiger (Crustacea, Amphipoda, Maeridae

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Azman Abdul Rahim

2015-04-01

Full Text Available Parelasmopus setiger has been widely described from tropical to subtropical regions from Philippine Islands, Sulu Sea, Indonesia, Australia, north Indian Ocean and the Seychelles by several authors. The present study provides detailed descriptions of Parelasmopus setiger Chevreux, 1901 (Crustacea: Amphipoda based on newly collected specimens from Pulau Hantu, Singapore. Morphological characters of the specimens closely resemble those of Parelasmopus setiger and Parelasmopus siamensis Wongkamhaeng, Coleman & Pholpunthin, 2013. The specimens of both the species were quite similar to the Singapore specimens, although the shapes of appendages vary with growth and locality; therefore, P. siamensis is synonymized with P. setiger. The following species characteristics for P. setiger are indicated: 1 antenna 1 peduncle with 2 setae; 2 male gnathopod 2 propodus palm transverse; 3 Pereopods 5 to 7 posterior margins with long slender setae; and 4 dorsal carina pattern for pereonite 7 and pleonites 1 to 3.

Studies on transfer and accumulation of 106Ru from seaweed to fish through crustacea, 2

International Nuclear Information System (INIS)

Izumo, Yoshiro

1982-01-01

This paper deals with transfer and accumulation of 106 Ru in a model of the graizing food chain of marine organisms: the radioactive sea water → seaweed (Chondrus crispus) → crustacea (prawn, Palaemon serratus) → fish (plaice, Pleuronectes platessa). The seaweeds were cultured in the radioactive sea waters A (filtrated and circulated through sandy mud, the radioactive concentration decreased and atteined to constant after addition of 106 Ru), B (not filtrated and circulated, the radioactive concentration decreased and atteined to constant) and C (not filtrated and circulated, the radioactive concentration decreased, but did not attein to constant), respectively, and investigated accumulations of 106 Ru. Thereafter, accumulations of 106 Ru in prawns and plaice by the ingestions of their diets (the seaweeds contaminated with 106 Ru in each water and the meats of prawns accumulated 106 Ru from each diet, respectively), were investigated and compared with those from the radioactive sea waters reported previously. It was shown that 106 Ru would be accumulated by the prawns from the sea water A about 3 times higher than from the contaminated diet in this water, however from the contaminated diets in the waters B and C about 2 times, respectively, higher than from each water. While, accumulations of 106 Ru by the plaice from each diet were negligible in comparison with those from each water. No higher concentrations of 106 Ru were observed in these organisms from lower to higher in the trophic level. (author)

Analysis of the transcriptome of blowfly Chrysomya megacephala (Fabricius larvae in responses to different edible oils.

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Min Zhang

Full Text Available Chrysomya megacephala (Fabricius, a prevalent necrophagous blowfly that is easily mass reared, is noted for being a mechanical vector of pathogenic microorganisms, a pollinator of numerous crops, and a resource insect in forensic investigation in the postmortem interval. In the present study, in order to comprehensively understand the physiological and biochemical functions of C. megacephala, we performed RNA-sequencing and digital gene expression (DGE profiling using Solexa/Illumina sequencing technology.A total of 39,098,662 clean reads were assembled into 27,588 unigenes with a mean length of 768 nt. All unigenes were searched against the Nt database, Nr database, Swiss-Prot, Cluster of Orthologous Groups (COG and Kyoto Encyclopedia of Genes and Genome (KEGG with the BLASTn or BLASTx algorithm (E-value<0.00001 for annotations. In total, 7,081 unigenes and 14,099 unigenes were functionally classified into 25 COG categories and 240 KEGG pathways, respectively. Furthermore, 20,216 unigenes were grouped into 48 sub-categories belonging to 3 main Gene Ontology (GO categories (ontologies. Using the transcriptome data as references, we analyzed the differential gene expressions between a soybean oil-fed group (SOF and a lard oil-fed group (LOF, compared to the negative control group (NC, using the DGE approach. We finally obtained 1,566 differentially expressed genes in SOF/NC, and 1,099 genes in LOF/NC. For further analysis, GO and KEGG functional enrichment were performed on all differentially expressed genes, and a group of differentially expressed candidate genes related to lipometabolism were identified.This study provides a global survey of C. megacephala and provides the basis for further research on the functional genomics of this insect.

A new species of Pagurus (Crustacea: Decapoda: Paguridae, new records and a redescription of hermit crabs from the Mexican Pacific

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Manuel Ayón-Parente

2012-09-01

Full Text Available New records are provided for three species of little-known pagurids. All the material reported was collected by the R/V “El Puma” in the central Gulf of California during the GUAYTEC II cruise. New material is reported for Iridopagurus haigae García-Gómez, 1983, Enallopagurus spinicarpus (Glassell, 1937, and Solenopagurus diomedeae (Faxon, 1893, and these two latter species are redescribed. A new species of hermit crab of the genus Pagurus Fabricius, 1775, is described and illustrated in detail. Among the eastern Pacific species of Pagurus, this new species resembles Pagurus meloi Lemaitre and Cruz Castaño, 2004, P. imarpe Haig, 1974 and P. delsolari Haig, 1974, but differs from these three species in the armature and setation of the chelipeds and second and third pereopods, the shape and armature of the telson, and the number of rows of scales on pereopodal rasp and the presence of a preungual process.

Effects of nickel exposure on testicular function, oxidative stress, and male reproductive dysfunction in Spodoptera litura Fabricius.

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Sun, Hongxia; Wu, Wenjing; Guo, Jixing; Xiao, Rong; Jiang, Fengze; Zheng, Lingyan; Zhang, Guren

2016-04-01

Nickel is an environmental pollutant that adversely affects the male reproductive system. In the present study, the effects of nickel exposure on Spodoptera litura Fabricius were investigated by feeding larvae artificial diets containing different doses of nickel for three generations. Damage to testes and effects on male reproduction were examined. The amount of nickel that accumulated in the testes of newly emerged males increased as the nickel dose in the diet increased during a single generation. Nickel exposure increased the amount of thiobarbituric acid reactive substances and decreased the amount of glutathione in treatment groups compared with the control. The activity levels of the antioxidant response indices superoxide dismutases, catalase, and glutathione peroxidase in the testes showed variable dose-dependent relationships with nickel doses and duration of exposure. Nickel doses also disrupted the development of the testes by decreasing the weight and volume of testes and the number of eupyrene and apyrene sperm bundles in treatment groups compared with the control. When the nickel-treated males mated with normal females, fecundity was inhibited by the higher nickel doses in all three generations, but fecundity significantly increased during the second generation, which received 5 mg kg(-1) nickel. Hatching rates in all treatments significantly decreased in a dose-dependent manner in the three successive generations. The effects of nickel on these parameters correlated with the duration of nickel exposure. Results indicate assays of testes may be a novel and efficient means of evaluating the effects of heavy metals on phytophagous insects in an agricultural environment. Copyright © 2015 Elsevier Ltd. All rights reserved.

Conspecific mimics and low host plant availability reduce egg laying by Heliconius erato phyllis (Fabricius (Lepidoptera, Nymphalidae

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Elna Mugrabi-Oliveira

1996-01-01

Full Text Available Oviposition response of Heliconius erato phyllis (Fabricius, 1775 (Lepidoptera, Nymphalidae to variation in host plant availability, Passiflora suberosa Linnaeus (Passifloraceae, and to presence of conspecific eggs and larvae was determined through choice experiments performed under insectary conditions. Freeze dried, painted eggs and larvae were used as mimics for testing presence of conspecific effects. Females laid more eggs on intact P. suberosa shoots without conspecifics than on those with H. erato phyllis egg and first instar mimics in both simultaneous and sequential choice trials. Oviposition response to variation in host plant availability was determined through no-choice trials, under host plant densities varying from 0.3 to 8.3 plants per female. Number of eggs laid per plant decreased exponentially with an increase in plant availability. On the contrary, daily oviposition rates (eggs /female/day increased with an increase in plant number, and levelled off when the number of plants available for oviposition was greater than potential fecundity of females. Thus, it is inferred from the results that females assess egg and larval load and prefer to lay eggs on shoots free from conspecifics. It is also inferred that they are able to recognize plant abundance and are unwilling to lay more than one egg per shoot even when host availability is scarce, as judged by reduction in daily oviposition rates under low host plant number. The consequences of laying isolated eggs on P. suberosa shoots are discussed from the viewpoint of intraspecific competition in the larval stage of H. erato phyllis.

Eight new species of Andrena Fabricius (Hymenoptera: Apoidea: Andrenidae) from Israel-a Mediterranean hotspot for wild bees.

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Pisanty, Gideon; Scheuchl, Erwin; Dorchin, Netta

2016-11-10

More than 150 solitary bee species of the genus Andrena Fabricius are known from Israel and the West Bank, where they are distributed along a broad climatic gradient and diverse habitats and vegetation types. Extensive collecting throughout Israel in recent years has yielded eight new species and one new subspecies, adding to the rich bee fauna of the region:   A. crocusella Pisanty & Scheuchl n. sp., A. danini Pisanty & Scheuchl n. sp., A. hermonella Scheuchl & Pisanty n. sp., A. israelica Scheuchl & Pisanty n. sp., A. judaea Scheuchl & Pisanty n. sp., A. menahemella Scheuchl & Pisanty n. sp., A. palaestina Pisanty & Scheuchl n. sp., A. perahia Pisanty & Scheuchl n. sp., and A. sphecodimorpha mediterranea Pisanty & Scheuchl n. ssp. The previously unknown female of A. fimbriatoides Scheuchl 2004 and male of A. wolfi Gusenleitner & Scheuchl 2000 are also described here for the first time. The discovery of males of A. wolfi lead us to reinstate A. iohannescaroli Nobile 2000 as a valid taxon. Detailed morphological description and differential diagnosis against closest relatives are provided for all species, as well as information on the distribution, phenology and flower visitation, when available. A neotype is designated for A. sphecodimorpha Hedicke, the holotype of which is considered to be lost. Additional collecting efforts in diverse habitats and seasons, incorporating diverse collecting techniques, are required in order to deepen our knowledge of the rich bee fauna in threatened habitats in the Mediterranean Basin, which constitutes one of the world's major hotspots for wild bees.

A dataset on the species composition of amphipods (Crustacea) in a Mexican marine national park: Alacranes Reef, Yucatan.

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Paz-Ríos, Carlos E; Simões, Nuno; Pech, Daniel

2018-01-01

Alacranes Reef was declared as a National Marine Park in 1994. Since then, many efforts have been made to inventory its biodiversity. However, groups such as amphipods have been underestimated or not considered when benthic invertebrates were inventoried. Here we present a dataset that contributes to the knowledge of benthic amphipods (Crustacea, Peracarida) from the inner lagoon habitats from the Alacranes Reef National Park, the largest coral reef ecosystem in the Gulf of Mexico. The dataset contains information on records collected from 2009 to 2011. Data are available through Global Biodiversity Information Facility (GBIF). A total of 110 amphipod species distributed in 93 nominal species and 17 generic species, belonging to 71 genera, 33 families and three suborders are presented here. This information represents the first online dataset of amphipods from the Alacranes Reef National Park. The biological material is currently deposited in the crustacean collection from the regional unit of the National Autonomous University of Mexico located at Sisal, Yucatan, Mexico (UAS-Sisal). The biological material includes 588 data records with a total abundance of 6,551 organisms. The species inventory represents, until now, the richest fauna of benthic amphipods registered from any discrete coral reef ecosystem in Mexico.

Distribución espacial de Ocypode quadrata (Decapoda: Ocypodidae en ocho playas de la zona norte oriental de Cuba

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Frank A. Ocaña

2012-09-01

Full Text Available Uno de los organismos más comunes en las playas arenosas son los miembros del género Ocypode conocidos como cangrejos fantasmas, están ampliamente distribuidos en las regiones tropicales y subtropicales; además tienen un importante papel en la transferencia de energía en diferentes niveles tróficos. El objetivo del presente trabajo es dar a conocer aspectos relacionados con la variación espacial de la densidad de O. quadrata en playas con diferente nivel de influencia humana en la costa norte oriental de Cuba. En mayo de 2010, fueron contadas un total de 355 galerías en 360 unidades de muestreo. La composición por clases de tallas fue de 237 galerías de jóvenes y 118 de adultos. Del total de galerías contadas el 74% ocuparon el nivel P1, 20% el nivel P2 y 6% el nivel P3. La densidad varió entre 0.06-0.52galerías/m2. A pesar del nivel de influencia humana, la mayoría de las playas no mostró diferencias significativas en la densidad de galerías (Scheffé, p>0.05. La densidad de individuos en la zona superior de resaca del oleaje es mayor (Scheffé, pSpatial distribution of Ocypode quadrata (Decapoda: Ocypodidae in eight beaches of NorthEastern Cuba. Studies on the ecology of Ocypode quadrata have been mostly carried out in the Northern and Southern part of its distribution range. In despite that this species is common in Cuban beaches, there are no quantitative studies regarding its abundance and spatial distribution. The aim of this study was to report some aspects about the spatial variation of O. quadrata density in sandy beaches, with different levels of human influence, in the North coast of Eastern Cuba. For this, on May 2010, eight beaches with different levels of human influence were surveyed. On each beach, the number of crabs burrows were counted in 45 quadrats of 4m2 located in three different strata (P1, P2 and P3. According to burrow opening diameter, crabs were separated into young and adults forms. To determine the

On the reliability of a simple method for scoring phenotypes to estimate heritability: A case study with pupal color in Heliconius erato phyllis , Fabricius 1775 (Lepidoptera, Nymphalidae

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Adriano Andrejew Ferreira

2009-01-01

Full Text Available In this paper, two methods for assessing the degree of melanization of pupal exuviae from the butterfly Heliconius erato phyllis , Fabricius 1775 (Lepidoptera, Nymphalidae, Heliconiini are compared. In the first method, which was qualitative, the exuviae were classified by scoring the degree of melanization, whereas in the second method, which was quantitative, the exuviae were classified by optical density followed by analysis with appropriate software. The heritability (h 2 of the degree of melanization was estimated by regression and analysis of variance. The estimates of h 2 were similar with both methods, indicating that the qualitative method could be particularly suitable for field work. The low estimates obtained for heritability may have resulted from the small sample size ( n = 7-18 broods, including the parents or from the allocation-priority hypothesis in which pupal color would be a lower priority trait compared to morphological traits and adequate larval development.

Optimized sample preparation for two-dimensional gel electrophoresis of soluble proteins from chicken bursa of Fabricius

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Zheng Xiaojuan

2009-10-01

Full Text Available Abstract Background Two-dimensional gel electrophoresis (2-DE is a powerful method to study protein expression and function in living organisms and diseases. This technique, however, has not been applied to avian bursa of Fabricius (BF, a central immune organ. Here, optimized 2-DE sample preparation methodologies were constructed for the chicken BF tissue. Using the optimized protocol, we performed further 2-DE analysis on a soluble protein extract from the BF of chickens infected with virulent avibirnavirus. To demonstrate the quality of the extracted proteins, several differentially expressed protein spots selected were cut from 2-DE gels and identified by matrix-assisted laser desorption ionization time-of-flight mass spectrometry (MALDI-TOF MS. Results An extraction buffer containing 7 M urea, 2 M thiourea, 2% (w/v 3-[(3-cholamidopropyl-dimethylammonio]-1-propanesulfonate (CHAPS, 50 mM dithiothreitol (DTT, 0.2% Bio-Lyte 3/10, 1 mM phenylmethylsulfonyl fluoride (PMSF, 20 U/ml Deoxyribonuclease I (DNase I, and 0.25 mg/ml Ribonuclease A (RNase A, combined with sonication and vortex, yielded the best 2-DE data. Relative to non-frozen immobilized pH gradient (IPG strips, frozen IPG strips did not result in significant changes in the 2-DE patterns after isoelectric focusing (IEF. When the optimized protocol was used to analyze the spleen and thymus, as well as avibirnavirus-infected bursa, high quality 2-DE protein expression profiles were obtained. 2-DE maps of BF of chickens infected with virulent avibirnavirus were visibly different and many differentially expressed proteins were found. Conclusion These results showed that method C, in concert extraction buffer IV, was the most favorable for preparing samples for IEF and subsequent protein separation and yielded the best quality 2-DE patterns. The optimized protocol is a useful sample preparation method for comparative proteomics analysis of chicken BF tissues.

Ultraestrutura do espermatozóide de Ucides cordatus Linnaeus (Crustacea, Ocypodidae do litoral norte do Brasil Ultrastructure of spermatozoon of the crab Ucides cordatus Linaeus (Crustacea, Decapoda of the northern littoral of Brazil

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Edilson Matos

2000-09-01

Full Text Available Ultrastructure of spermatozoa of the crab Ucides cordatus Linnaeus, 1763 is described and illustrated. Three parts can be distinguished: 1. the elongate-ovoid acrosome located anteriorly; 2. the cytoplasmic region; and 3. the nuclear region. The acrosome is composed of a thick electron-dense wall and a less electron-dense subacrosomal space. The cytoplasm region connects the acrosome with the nucleus, and three arms filled with microtubules arise from this region. The nucleus is polymorphous. The spermatozoon of Ucides cordatus follows the general pattern described for other Decapods.

Utilization of adult burrows by juveniles of the ghost shrimp, Callianassa japonica Ortmann: evidence from resin casts of burrows

Digital Repository Service at National Institute of Oceanography (India)

Tamaki, A.; Ikebe, K.; Muramatsu, K.; Ingole, B.S.

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Origin of the interstitial isopod Microcharon (Crustacea, Microparasellidae from the western Languedoc and the northern Pyrenees (France with the description of two new species

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Nicole COINEAU

2013-02-01

Full Text Available The interstitial groundwater genus Microcharon (Crustacea, Isopoda, Microparasellidae is highly diversified in southern France. A new species, Microcharon boulanouari n. sp. is described from the Aude River, whereas specimens from the Lachein River in the central Pyrenees are reassigned to another species, M. ariegensis new to Science. Microcharon boulanouari n. sp. is closely related to the species of the group rouchi and may belong to the phylogenetic western Mediterranean lineage. The two-step model of colonization and evolution provides an understanding of the origin and age of this stygobite. Microcharon boulanouari n. sp. is derived from marine ancestors that lived in the interstitial littoral shallow bottoms of the Atlantic embayment which covered southwestern France at the very beginning of the early Eocene period. Both the regression of this gulf at the start of the Eocene and the Pyrenees uplift may have played a major role in the evolutionary history through vicariance of Microcharon boulanouari n. sp. and of the northern Pyrenean species of the group rouchi.

An overview of the distribution of the Parabathynellidae (Crustacea, Syncarida Bathynellacea on the Iberian Peninsula and Balearic Islands

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Camacho, Ana I.

2003-06-01

Full Text Available This paper reviews all the knowledge on the presence and distribution of 26 species of the family Parabathynellidae Noodt, 1964 (Crustacea, Syncarida, Bathynellacea on the Iberian Peninsula and Balearic Islands. The different genera, subgenera and species distributions are subjected to a basic analysis. The presence of these taxa in different subterranean aquatic habitats (caves, springs, wells and interstitial environment is also discussed. The most sampled habitat was the interstitial environment (45%; the least sampled habitat was springs (5%. The most commonly found genus was Iberobathynella Schminke, 1973 (54% and the rarest was Guadalopebathynella Camacho & Serban, 1998 (0.7% All the knowledge on these taxa in the study area, in Europe and in the world is compared and evaluated. More species of the Parabathynellidae live on the Iberian Peninsula and Balearic Islands than in any other part of the world (26 species. Iberobathynella is a highly diversified genus endemic to the Iberian peninsula. Its diversity is comparable to another genus in the order, Hexabathynella Schminke, 1972, which also has 18 described species. However, Hexabathynella has a cosmopolitan distribution.

En este trabajo se reúne y actualiza el conocimiento acerca de la presencia y distribución de 26 especies de batinelas de la familia Parabathynellidae (Crustacea, Syncarida, Bathynellacea en la Península Ibérica y las Islas Baleares. Se analiza de forma crítica la distribución de los diferentes géneros, subgéneros y especies y se discute acerca de la presencia de los mismos en diferentes habitat acuáticos subterráneos (cuevas, fuentes o surgencias, pozos y medio intersticial asociado a ríos epigeos. El mayor número de puntos de muestreo corresponde al medio intersticial (45% del total y en él se encuentran los cinco géneros presentes en el área de estudio; las surgencias constituyen el conjunto con menos puntos de

Stomach contents of some shore-caught teleosts of Natal, South Mrica

African Journals Online (AJOL)

Commonly caught fish, namely Rhabdosargus sarta, R. holubi, Pomadasys commersonni, Trachinotus africanus and T. botla, were opportunistic omnivorous predators and fed largely on sand mussels and benthic crustacea. Less frequently caught predatory fish (15 species) fed mainly on benthic crustacea and other ...

Phylogeography of Daphnia magna Straus (Crustacea: Cladocera) in Northern Eurasia: Evidence for a deep longitudinal split between mitochondrial lineages.

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Bekker, Eugeniya I; Karabanov, Dmitry P; Galimov, Yan R; Haag, Christoph R; Neretina, Tatiana V; Kotov, Alexey A

2018-01-01

Species with a large geographic distributions present a challenge for phylogeographic studies due to logistic difficulties of obtaining adequate sampling. For instance, in most species with a Holarctic distribution, the majority of studies has concentrated on the European or North American part of the distribution, with the Eastern Palearctic region being notably understudied. Here, we study the phylogeography of the freshwater cladoceran Daphnia magna Straus, 1820 (Crustacea: Cladocera), based on partial mitochondrial COI sequences and using specimens from populations spread longitudinally from westernmost Europe to easternmost Asia, with many samples from previously strongly understudied regions in Siberia and Eastern Asia. The results confirm the previously suspected deep split between Eastern and Western mitochondrial haplotype super-clades. We find a narrow contact zone between these two super-clades in the eastern part of Western Siberia, with proven co-occurrence in a single lake in the Novosibirsk region. However, at present there is no evidence suggesting that the two mitochondrial super-clades represent cryptic species. Rather, they may be explained by secondary contact after expansion from different refugia. Interestingly, Central Siberia has previously been found to be an important contact zone also in other cladoceran species, and may thus be a crucial area for understanding the Eurasian phylogeography of freshwater invertebrates. Together, our study provides an unprecedented complete, while still not global, picture of the phylogeography of this important model species.

Reproductive biology and seasonality of the Indo-Australasian mysid Mesopodopsis orientalis (Crustacea: Mysida) in a tropical mangrove estuary, Malaysia

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Hanamura, Yukio; Siow, Ryon; Chee, Phaik-Ean

2008-04-01

A year-round survey of the tropical shallow-water mysid Mesopodopsis orientalis (Tattersall, 1908) (Crustacea, Mysidacea) was conducted in the Merbok mangrove estuary, northwestern Peninsular Malaysia. The mysid formed dense aggregations at the river's edge close to the mangrove forest during the daytime, but very few were captured elsewhere in the estuary system. The sampled population was found in a wide range of salinities from 16 to 32, demonstrating broad euryhalinity, and the number of the catch at the littoral zone ranged from 11.8 to 2273 ind m -2. The overall annual mean was 709.2 ind m -2. Females predominated over males in the entire population, and brooding females were present at every monthly sample, indicating that reproduction is continuous year round. The clutch size positively correlated with female body length. The diameter of eggs (Stage I embryos) was unaffected by the seasonality and independent of the maternal size within an observed size range. The life history pattern of the estuarine population of M. orientalis showed close similarity to that of the coastal counterpart. However, the former was found to produce fewer but larger eggs, and the specimens in this population were larger than those in the coastal population at the embryo, juvenile, and adult stages. This evidence indicates that the life history features of the estuarine population would differ to some degree from those of the coastal counterpart.

Influência do Fotoperíodo no Parasitismo de Trichogramma galloi Zucchi (Hymenoptera: Trichogrammatidae em Ovos de Diatraea saccharalis (Fabricius (Lepidoptera: Crambidae

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Danilo Santana

2013-07-01

Abstract. Trichogramma species are an important group of parasitoids that attack especially lepidopteran eggs. The quality and performance of this natural enemy may be influenced by factors such as alternative host used in the massal rearing, and differences in the temperature and photoperiod. Based on this, this study aimed to evaluate the number of parasitized eggs, % of females that parasitized, % emergence, sex ratio and number of individuals of Trichogramma galloi Zucchi per egg of Diatraea saccharalis (Fabricius in the presence and absence of light. The experimental design was completely randomized with two treatments (light and dark and 60 replications, being each experimental unit composed by 40 eggs of D. saccharalis which were placed in a glass tube with one female of T. galloi with age of 24 hours, previously fed with honey. The experiment was carried out at 25 ± 2 °C and 70 ± 10% relative humidity. In each one of the treatments, the parasitoid was removed from the tube after 12 hours. The highest number of parasitized eggs (12.9 and % of females that parasitized (83.3% was observed during the period with light. For the emergence, sex ratio and number of individuals per egg, there was no statistical difference. The results showed that the presence of light is essential for this biological control agent.

The effect of starvation and re-feeding on mitochondrial potential in the midgut of Neocaridina davidi (Crustacea, Malacostraca.

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Agnieszka Włodarczyk

Full Text Available The midgut in the freshwater shrimp Neocaridina davidi (previously named N. heteropoda (Crustacea, Malacostraca is composed of a tube-shaped intestine and a large hepatopancreas that is formed by numerous blind-ended tubules. The precise structure and ultrastructure of these regions were presented in our previous papers, while here we focused on the ultrastructural changes that occurred in the midgut epithelial cells (D-cells in the intestine, B- and F- cells in the hepatopancreas after long-term starvation and re-feeding. We used transmission electron microscopy, light and confocal microscopes and flow cytometry to describe all of the changes that occurred due to the stressor with special emphasis on mitochondrial alterations. A quantitative assessment of cells with depolarized mitochondria helped us to establish whether there is a relationship between starvation, re-feeding and the inactivation/activation of mitochondria. The results of our studies showed that in the freshwater shrimp N. davidi that were analyzed, long-term starvation activates the degeneration of epithelial cells at the ultrastructural level and causes an increase of cells with depolarized (non-active mitochondria. The process of re-feeding leads to the gradual regeneration of the cytoplasm of the midgut epithelial cells; however, these changes were observed at the ultrastructural level. Additionally, re-feeding causes the regeneration of mitochondrial ultrastructure. Therefore, we can state that the increase in the number of cells with polarized mitochondria occurs slowly and does not depend on ultrastructural alterations.

The effect of starvation and re-feeding on mitochondrial potential in the midgut of Neocaridina davidi (Crustacea, Malacostraca).

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Włodarczyk, Agnieszka; Sonakowska, Lidia; Kamińska, Karolina; Marchewka, Angelika; Wilczek, Grażyna; Wilczek, Piotr; Student, Sebastian; Rost-Roszkowska, Magdalena

2017-01-01

The midgut in the freshwater shrimp Neocaridina davidi (previously named N. heteropoda) (Crustacea, Malacostraca) is composed of a tube-shaped intestine and a large hepatopancreas that is formed by numerous blind-ended tubules. The precise structure and ultrastructure of these regions were presented in our previous papers, while here we focused on the ultrastructural changes that occurred in the midgut epithelial cells (D-cells in the intestine, B- and F- cells in the hepatopancreas) after long-term starvation and re-feeding. We used transmission electron microscopy, light and confocal microscopes and flow cytometry to describe all of the changes that occurred due to the stressor with special emphasis on mitochondrial alterations. A quantitative assessment of cells with depolarized mitochondria helped us to establish whether there is a relationship between starvation, re-feeding and the inactivation/activation of mitochondria. The results of our studies showed that in the freshwater shrimp N. davidi that were analyzed, long-term starvation activates the degeneration of epithelial cells at the ultrastructural level and causes an increase of cells with depolarized (non-active) mitochondria. The process of re-feeding leads to the gradual regeneration of the cytoplasm of the midgut epithelial cells; however, these changes were observed at the ultrastructural level. Additionally, re-feeding causes the regeneration of mitochondrial ultrastructure. Therefore, we can state that the increase in the number of cells with polarized mitochondria occurs slowly and does not depend on ultrastructural alterations.

Spatial Distribution of Eggs of Alabama argillacea Hübner and Heliothis virescens Fabricius (Lepidoptera: Noctuidae on Bt and non-BtCotton

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TATIANA R. RODRIGUES

2015-12-01

Full Text Available ABSTRACT Among the options to control Alabama argillacea (Hübner, 1818 and Heliothis virescens (Fabricius, 1781 on cotton, insecticide spraying and biological control have been extensively used. The GM'Bt' cotton has been introduced as an extremely viable alternative, but it is yet not known how transgenic plants affect populations of organisms that are interrelated in an agroecosystem. For this reason, it is important to know how the spatial arrangement of pests and beneficial insect are affected, which may call for changes in the methods used for sampling these species. This study was conducted with the goal to investigate the pattern of spatial distribution of eggs of A. argillacea and H. virescens in DeltaOpalTM (non-Bt and DP90BTMBt cotton cultivars. Data were collected during the agricultural year 2006/2007 in two areas of 5,000 m2, located in in the district of Nova América, Caarapó municipality. In each sampling area, comprising 100 plots of 50 m2, 15 evaluations were performed on two plants per plot. The sampling consisted in counting the eggs. The aggregation index (variance/mean ratio, Morisita index and exponent k of the negative binomial distribution and chi-square fit of the observed and expected values to the theoretical frequency distribution (Poisson, Binomial and Negative Binomial Positive, showed that in both cultivars, the eggs of these species are distributed according to the aggregate distribution model, fitting the pattern of negative binomial distribution.

Size of and damage on shoots of Passiflora suberosa (Passifloraceae influence oviposition site selection of Heliconius erato phyllis (Fabricius (Lepidoptera, Nymphalidae

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Elna Mugrabi-Oliveira

1996-01-01

Full Text Available Oviposition site selection of Heliconius erato phyllis (Fabricius, 1775 (Lepidoptera, Nymphalidae was studied when size of and damage on shoots were variable in a natural population of Passiflora suberosa Linnaeus (Passifloraceae, and through sequential and simultaneous choice experiments performed under insectary conditions. Females showed marked oviposition preference for undamaged and largest shoots of P. suberosa. Eggs were mostly laid on the terminal buds of intact shoots under natural conditions. In simultaneous choice trials, females preferred to oviposit on shoots from which leaves (ten were removed but the terminal bud maintained to those where leaves were kept but the terminal bud was cut out. In sequential choice trials, they did not lay eggs on shoots from which the terminal bud was removed. Females preferred to oviposit on large to short intact shoots in both sequential and simultaneous choice trials. Females laid eggs preferentially on shoots with the greatest leaf area when most plants were intact in the field during early spring. Later in fall, when mostly large, old shoots were damaged or in a reproductive stage (less desirable for oviposition, oviposition intensity was highest on the shortest, youngest shoots of P. suberosa. Thus, females might rank these quality attributes higher than size while selecting shoots for oviposition. The consequences of ovipositing selectively on intact, large shoots of P. suberosa are discussed from the view point of H. erato phyllis larval performance.

Deposições de Óleo por Fêmeas de Centris analis (Fabricius (Hymenoptera: Apidae: Centridini Parasitadas por Physocephala spp. (Diptera: Conopidae

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Ricardo Couto

2014-08-01

Abstract. The aim of this work was to identify behaviors of oil deposition by females of the solitary bee Centris analis (Fabricius parasitized by Physocephala spp. This study was conducted at the Campus of the University of São Paulo, Ribeirão Preto, using trap-nests in which the females built the brood-cells in nests made with black cardboard, introduced in wood blocks that were placed on two shelves at site of study. From the 26 females that nested in the area, 11 were found dead inside the empty trap-nests. Next, they were taken to the laboratory together with nine dead males, placed in glass tubes and were observed daily until the parasitoid Physocephala spp. (Diptera: Conopidae emerged. All nests built by the parasitized females had extra oil deposition on the last brood-cell occlusion. In addition, these females remained for 5.4 days at site of study after closing the nests, made extra oil depositions on the nest occlusions and closed 42 empty nests, without brood-cells. The data of this work suggest that the extra oil deposition by parasitized females, increase the difficulties to the success of the parasitoid Leucospis cayennensis Westwood, since there are 2 obstacles to be won: oil over the last partition and oil on the nest occlusion. It´s good to point out that defending the nests against parasitoids the females would be ensuring a new generation of conopids.

Effect of morphine on the growth rate of Calliphora stygia (Fabricius) (Diptera: Calliphoridae) and possible implications for forensic entomology.

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George, Kelly A; Archer, Melanie S; Green, Lauren M; Conlan, Xavier A; Toop, Tes

2009-12-15

Insect specimens collected from decomposing bodies enable forensic entomologists to estimate the minimum post-mortem interval (PMI). Drugs and toxins within a corpse may affect the development rate of insects that feed on them and it is vital to quantify these effects to accurately calculate minimum PMI. This study investigated the effects of morphine on growth rates of the native Australian blowfly, Calliphora stygia (Fabricius) (Diptera: Calliphoridae). Several morphine concentrations were incorporated into pet mince to simulate post-mortem concentrations in morphine, codeine and/or heroin-dosed corpses. There were four treatments for feeding larvae; T 1: control (no morphine); T 2: 2 microg/g morphine; T 3: 10 microg/g morphine; and T 4: 20 microg/g morphine. Ten replicates of 50 larvae were grown at 22 degrees C for each treatment and their development was compared at four comparison intervals; CI 1: 4-day-old larvae; CI 2: 7-day-old larvae; CI 3: pupae; and CI 4: adults. Length and width were measured for larvae and pupae, and costae and tibiae were measured for adults. Additionally, day of pupariation, day of adult eclosion, and survivorship were calculated for each replicate. The continued presence of morphine in meat was qualitatively verified using high-performance liquid chromatography with acidic potassium permanganate chemiluminescence detection. Growth rates of C. stygia fed on morphine-spiked mince did not differ significantly from those fed on control mince for any comparison interval or parameter measured. This suggests that C. stygia is a reliable model to use to accurately age a corpse containing morphine at any of the concentrations investigated.

The ventral nerve cord in Cephalocarida (Crustacea): new insights into the ground pattern of Tetraconata.

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Stegner, Martin E J; Brenneis, Georg; Richter, Stefan

2014-03-01

Cephalocarida are Crustacea with many anatomical features that have been interpreted as plesiomorphic with respect to crustaceans or Tetraconata. While the ventral nerve cord (VNC) has been investigated in many other arthropods to address phylogenetic and evolutionary questions, the few studies that exist on the cephalocarid VNC date back 20 years, and data pertaining to neuroactive substances in particular are too sparse for comparison. We reinvestigated the VNC of adult Hutchinsoniella macracantha in detail, combining immunolabeling (tubulin, serotonin, RFamide, histamine) and nuclear stains with confocal laser microscopy, complemented by 3D-reconstructions based on serial semithin sections. The subesophageal ganglion in Cephalocarida comprises three segmental neuromeres (Md, Mx1, Mx2), while a separate ganglion occurs in all thoracic segments and abdominal segments 1-8. Abdominal segments 9 and 10 and the telson are free of ganglia. The maxillar neuromere and the thoracic ganglia correspond closely in their limb innervation pattern, their pattern of mostly four segmental commissures and in displaying up to six individually identified serotonin-like immunoreactive neurons per body side, which exceeds the number found in most other tetraconates. Only two commissures and two serotonin-like immunoreactive neurons per side are present in abdominal ganglia. The stomatogastric nervous system in H. macracantha corresponds to that in other crustaceans and includes, among other structures, a pair of lateral neurite bundles. These innervate the gut as well as various trunk muscles and are, uniquely, linked to the unpaired median neurite bundle. We propose that most features of the cephalocarid ventral nerve cord (VNC) are plesiomorphic with respect to the tetraconate ground pattern. Further, we suggest that this ground pattern includes more serotonin-like neurons than hitherto assumed, and argue that a sister-group relationship between Cephalocarida and Remipedia, as

Inshore small-mesh trawling survey of the Cape south coast. Part 5 ...

African Journals Online (AJOL)

Inshore small-mesh trawling survey of the Cape south coast. Part 5. Crustacea, Stomatopoda, Isopoda and. Decapoda. B. Kensley and C.D. Buxton. Port Elizabeth Museum, Port Elizabeth. Forty-six species of Crustacea from the shallow marine waters of the southern Cape coast are listed. Five new records for the area.

Sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae in the laboratory conditions

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Moloud GholamzadehChitgar

2014-04-01

Full Text Available The sublethal effects of diazinon, fenitrothion and chlorpyrifos on the functional response of predatory bug, Andrallus spinidens Fabricius (Hem.: Pentatomidae, a potential biological control agent, were studied on 5th-instar nymphs. The experiment was conducted in varying densities (2, 4, 8, 16, 32 and 64 of last instars larvae of Chilo suppressalis Walker (Lepidoptera: Pyralidae as prey at 25 ± 2 °C, 60% ± 10% relative humidity (RH and a photoperiod of 16:8 h (L: D. The results of logistic regressions revealed a type II functional response in the control and all insecticide treatments. Comparison of functional response curves revealed that tested insecticides markedly decreased the mean of preys consumed by A. spinidens. Among them, functional response curve of A. spinidens in chlorpyrifos treatment was significantly lower than the other treatments. In this study, application of insecticides caused a decrease in the attack rate and an increase in the handling time of exposed bugs compared with the control. The longest handling time (3.97 ± 0.62 and the lowest attack rate (0.023 ± 0.007 were observed in chlorpyrifos and fenitrothion treatments, respectively. The results suggested that the adverse effect of these insecticides on A. spinidens should be considered in integrated pest management programs (IPM.

Seasonal fluctuations of some biological traits of the invader Caprella scaura (Crustacea: Amphipoda: Caprellidae in the Mar Piccolo of Taranto (Ionian Sea, southern Italy

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Ermelinda Prato

2013-03-01

Full Text Available Caprella scaura is an epifaunal amphipod crustacean that originates in the western Indian Ocean and has spread throughout the world, but very little is known about fundamental aspects of its biology. This paper is the first presentation of its life history traits in an invaded region. The study was conducted in the Mar Piccolo basin (southern Italy, Ionian Sea, over a one-year period. All biological parameters showed a strong seasonal pattern, breeding peaked twice during the year and the number of eggs in the ventral brood pouch ranged from 5 to 72. The sex ratio was generally close to 1:1. A strong correlation between total length of ovigerous females and number of eggs was observed. The mean length of both mature males and mature females was 10.63 and 7.70 mm, respectively. The results of this study showed that the population dynamics of this species was not dissimilar to that of other caprellids or marine epifaunal Crustacea. This caprellid has given rise to a stable population in the Mar Piccolo; it was present all year round in the study area but its density suggests that it is not yet a strong invader.

A new species of the snapping shrimp genus Alpheus (Crustacea: Decapoda: Caridea: Alpheidae) from Japan, associated with the innkeeper worm Ikedosoma elegans (Annelida: Echiura: Echiuridae).

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Komai, Tomoyuki

2015-12-15

A new species of the snapping shrimp genus Alpheus Fabricius, 1798, Alpheus ikedosoma, is described and illustrated on the basis of material from Boso Peninsula and Ariake Sea, Japan. All examined specimens were extracted with the help of a bait suction pump from burrows of innkeeper worm (Annelida: Echiura), constructed on easily accessible intertidal sand beaches or sand flats. The host worm from Boso Peninsula was identified as Ikedosoma elegans (Ikeda, 1904) (Echiuridae). The new species is tentatively referred to the A. brevirostris (Olivier, 1811) species group, but it is characteristic in having several unusual features for the group, such as the very short rostrum without dorsal ridge, the absence of adrostral grooves on the carapace, the strongly reduced dorsolateral spines on the telson, the unarmed antennal basicerite, the non-elongate, almost glabrous major chela, and the lack of movable spines or spinules on ventromesial margin of each cheliped merus. The new species represents the sixth species of Alpheus associated with echiuran burrows.

Evolution and phylogeny of the mud shrimps (Crustacea: Decapoda) revealed from complete mitochondrial genomes.

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Lin, Feng-Jiau; Liu, Yuan; Sha, Zhongli; Tsang, Ling Ming; Chu, Ka Hou; Chan, Tin-Yam; Liu, Ruiyu; Cui, Zhaoxia

2012-11-16

The evolutionary history and relationships of the mud shrimps (Crustacea: Decapoda: Gebiidea and Axiidea) are contentious, with previous attempts revealing mixed results. The mud shrimps were once classified in the infraorder Thalassinidea. Recent molecular phylogenetic analyses, however, suggest separation of the group into two individual infraorders, Gebiidea and Axiidea. Mitochondrial (mt) genome sequence and structure can be especially powerful in resolving higher systematic relationships that may offer new insights into the phylogeny of the mud shrimps and the other decapod infraorders, and test the hypothesis of dividing the mud shrimps into two infraorders. We present the complete mitochondrial genome sequences of five mud shrimps, Austinogebia edulis, Upogebia major, Thalassina kelanang (Gebiidea), Nihonotrypaea thermophilus and Neaxius glyptocercus (Axiidea). All five genomes encode a standard set of 13 protein-coding genes, two ribosomal RNA genes, 22 transfer RNA genes and a putative control region. Except for T. kelanang, mud shrimp mitochondrial genomes exhibited rearrangements and novel patterns compared to the pancrustacean ground pattern. Each of the two Gebiidea species (A. edulis and U. major) and two Axiidea species (N. glyptocercus and N. thermophiles) share unique gene order specific to their infraorders and analyses further suggest these two derived gene orders have evolved independently. Phylogenetic analyses based on the concatenated nucleotide and amino acid sequences of 13 protein-coding genes indicate the possible polyphyly of mud shrimps, supporting the division of the group into two infraorders. However, the infraordinal relationships among the Gebiidea and Axiidea, and other reptants are poorly resolved. The inclusion of mt genome from more taxa, in particular the reptant infraorders Polychelida and Glypheidea is required in further analysis. Phylogenetic analyses on the mt genome sequences and the distinct gene orders provide further

Attraction and consumption of methyl eugenol by male Bactrocera umbrosa Fabricius (Diptera: Tephritidae) promotes conspecific sexual communication and mating performance.

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Wee, S L; Abdul Munir, M Z; Hee, A K W

2018-02-01

The Artocarpus fruit fly, Bactrocera umbrosa (Fabricius) (Diptera: Tephritidae), is an oligophagous fruit pest infesting Moraceae fruits, including jackfruit (Artocarpus heterophyllus Lamarck), a fruit commodity of high value in Malaysia. The scarcity of fundamental biological, physiological and ecological information on this pest, particularly in relation to behavioural response to phytochemical lures, which are instrumental to the success of many area-wide fruit fly control and management programmes, underpins the need for studies on this much-underrated pest. The positive response of B. umbrosa males to methyl eugenol (ME), a highly potent phytochemical lure, which attracts mainly males of many Bactrocera species, was shown to increase with increasing age. As early as 7 days after emergence (DAE), ca. 22% of males had responded to ME and over 50% by 10 DAE, despite no occurrence of matings (i.e. the males were still sexually immature). Male attraction to ME peaked from 10 to 27 DAE, which corresponded with the flies' attainment of sexual maturity. In wind-tunnel assays during the dusk courtship period, ME-fed males exhibited earlier calling activity and attracted a significantly higher percentage of virgin females compared with ME-deprived males. ME-fed males enjoyed a higher mating success than ME-deprived males at 1-day post ME feeding in semi-field assays. ME consumption also promotes aggregation behaviour in B. umbrosa males, as demonstrated in wind-tunnel and semi-field assays. We suggest that ME plays a prominent role in promoting sexual communication and enhancing mating performance of the Artocarpus fruit fly, a finding that is congruent with previous reports on the consequences of ME acquisition by other economically important Bactrocera species.

The Tribe Anisoscelini (Hemiptera: Heteroptera, Coreidae) in Argentina.

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Coscarón, María Del Carmen; Pall, José Luis

2015-10-23

Eight genera and 21 species of the tribe Anisoscelini (Coreidae, Coreinae) are recorded in Argentina: Anisoscelis foliaceus (Fabricius); Coribergia declivicollis (Berg); Dalmatomammurius vandoesburgi (Brailovsky); Holymenia hystrio (Fabricius); Leptoglossus chilensis (Spinola); L. cinctus (Herrich-Schaeffer); L. concolor Walker; L. crassicornis (Dallas); L. dentatus Berg; L. fasciatus (Westwood); L. gonagra (Fabricius); L. impictus (Stål); L. ingens (Mayr); L. neovexillatus Allen; L. quadricollis (Westwood); L. stigma (Herbst); L. vexillatus (Stål); L. zonatus (Dallas); Phthia lunata (Fabricius); Phthiacnemia picta (Drury) and Ugnius kermesinus (Linnaeus). A key to genera belonging to the tribe is provided. L. stigma is recorded for the first time in Argentina with new locality records for La Rioja, Salta and San Juan.

PEAR SHOOT SAWFLY (JANUS COMPRESSUS FABRICIUS – LIFE CYCLE AND BIOLOGICAL AND MORPHOLOGICAL CHARACTERISTIC

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Tihomir Validžić

2014-06-01

Full Text Available The aim of the thesis was to investigate life cycle, biological and morphological characteristics of pear shoot sawfly (Janus compressus Fabricius, Hymenoptera Cephidae, furthermore to identify natural enemies in order to protect pear from this pest. The trial was conducted in the period of three years: 2010, 2011 and 2012 in pear orchards at five localities. Monitoring of adult sawfly was done by yellow sticky traps. Laboratory research was done at the Faculty of Agriculture, Department of Plant Protection, Section of Entomology and Nematology. In this study, pear shoot sawfly in Eastern Slavonia occurred in the period of four weeks, starting from the third decade of April with the peak population at the beginning of the May. Adults flight is the most intensive during warm and sunny days, when temperatures are above 14°C. Adult sawflies are characterized by elongated body and antennae, usually 7-12 mm long and sexual dimorphism is present. Pest is univoltine. Basic colour of adult sawfly is black. Antennae are moniliform and consist of 20 (male - 22 (female segments. Females have red or dark red colored abdomen, while males have yellow or orange one. Eggs are cylindrically shaped, 0.8-1.0 mm long. Female lays approximately 30 eggs. Embryonic development of pear shoot sawfly eggs lasts from 11 to 14 days. Larvae are 8-10 mm long, white or pale yellow. Larvae molt three times. Pear shoot sawfly larvae were parasitized by insects from Hymenoptera order, from five identified and one unidentified genera. Level of parasitism by genera is as follows: Eurytoma sp. (Hymenoptera: Eurytomidae – 9.83%, Tetrastichus sp. (Hymenoptera: Eulophidae – 2.01%, Eupelmus sp. (Hymenoptera: Eupelmidae – 1.66%, Pteromalus sp. (Hymenoptera: Pteromalidae – 0.55%, Ichneumonida sp. (Hymenoptera: Pimplinae – 0.35% and unidentified genera – 0.62%. Plant parasitic species Metopoplax origani (Hemiptera: Lygaeidae was found in 1.80% of analyzed shoots. Larvae were

Including irrigation in niche modelling of the invasive wasp Vespula germanica (Fabricius) improves model fit to predict potential for further spread.

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de Villiers, Marelize; Kriticos, Darren J; Veldtman, Ruan

2017-01-01

The European wasp, Vespula germanica (Fabricius) (Hymenoptera: Vespidae), is of Palaearctic origin, being native to Europe, northern Africa and Asia, and introduced into North America, Chile, Argentina, Iceland, Ascension Island, South Africa, Australia and New Zealand. Due to its polyphagous nature and scavenging behaviour, V. germanica threatens agriculture and silviculture, and negatively affects biodiversity, while its aggressive nature and venomous sting pose a health risk to humans. In areas with warmer winters and longer summers, queens and workers can survive the winter months, leading to the build-up of large nests during the following season; thereby increasing the risk posed by this species. To prevent or prepare for such unwanted impacts it is important to know where the wasp may be able to establish, either through natural spread or through introduction as a result of human transport. Distribution data from Argentina and Australia, and seasonal phenology data from Argentina were used to determine the potential distribution of V. germanica using CLIMEX modelling. In contrast to previous models, the influence of irrigation on its distribution was also investigated. Under a natural rainfall scenario, the model showed similarities to previous models. When irrigation is applied, dry stress is alleviated, leading to larger areas modelled climatically suitable compared with previous models, which provided a better fit with the actual distribution of the species. The main areas at risk of invasion by V. germanica include western USA, Mexico, small areas in Central America and in the north-western region of South America, eastern Brazil, western Russia, north-western China, Japan, the Mediterranean coastal regions of North Africa, and parts of southern and eastern Africa.

Including irrigation in niche modelling of the invasive wasp Vespula germanica (Fabricius improves model fit to predict potential for further spread.

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Marelize de Villiers

Full Text Available The European wasp, Vespula germanica (Fabricius (Hymenoptera: Vespidae, is of Palaearctic origin, being native to Europe, northern Africa and Asia, and introduced into North America, Chile, Argentina, Iceland, Ascension Island, South Africa, Australia and New Zealand. Due to its polyphagous nature and scavenging behaviour, V. germanica threatens agriculture and silviculture, and negatively affects biodiversity, while its aggressive nature and venomous sting pose a health risk to humans. In areas with warmer winters and longer summers, queens and workers can survive the winter months, leading to the build-up of large nests during the following season; thereby increasing the risk posed by this species. To prevent or prepare for such unwanted impacts it is important to know where the wasp may be able to establish, either through natural spread or through introduction as a result of human transport. Distribution data from Argentina and Australia, and seasonal phenology data from Argentina were used to determine the potential distribution of V. germanica using CLIMEX modelling. In contrast to previous models, the influence of irrigation on its distribution was also investigated. Under a natural rainfall scenario, the model showed similarities to previous models. When irrigation is applied, dry stress is alleviated, leading to larger areas modelled climatically suitable compared with previous models, which provided a better fit with the actual distribution of the species. The main areas at risk of invasion by V. germanica include western USA, Mexico, small areas in Central America and in the north-western region of South America, eastern Brazil, western Russia, north-western China, Japan, the Mediterranean coastal regions of North Africa, and parts of southern and eastern Africa.

Avaliação de inseticidas no controle de Sitophilus oryzae (Linnaeus (Coleoptera, Curculionidae e Rhyzopertha dominica (Fabricius (Coleoptera, Bostrichidae em trigo armazenado Efficacy of insecticides to control Sitophilus oryzae (Linnaeus (Coleoptera, Curculionidae and Rhyzopertha dominica (Fabricius (Coleoptera, Bostrichidae in stored wheat

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Rui S. Furiatti

1999-03-01

Full Text Available The efficiency of insecticides against Sitophilus oryzae (Linnaeus, 1763 (Coleoptera, Curculionidae and Rhyzopertha dominica (Fabricius, 1792 (Coleoptera, Bostrichidae was determined exposing them to treated wheat in laboratory. Each plot, which was composed by 1.2 kg of wheat grain, was treated with 5 ml of the concentration/kg of wheat using a propelling air atomizer. Fifteen days after treatment 50 g samples of the grain were taken, from each plot, placed in plastic jars into which 10 adult insects of each species were released. This was repeated every 30 days until 165 days after treatment. The number of dead insects was counted 15 days after each infestation thus the evaluations were made at 30, 60, 90, 120, 150 and 180 days after the insecticide application. Esfenvalerate+fenitrothion+pyperonil butoxide (0,375+7,5+3,0 and 0,5+10,0+4,0 g a.i./t, fenitrothion+esfen-valerate (7,5+0,375 and 10,0+0,375 g a.i./t, fenitrothion+synergised deltamethrin (7,5+0,375 g a.i./t and fenitrothion (7,5 g a.i./t were effective against Sitophilus oryzae until 180 days after treatment. Esfenvalerate+fenitrothion+pyperonil butoxide (0,5+10,0+4,0 g a.i./t, fenitrothion+esfenvalerate (7,5+0,375 and 10,0+0,375 g a.i./t, fenitrothion+synergised deltamethrin (7,5+0,375 g a.i./t were effective against R. dominica until 180 days after treatment. Synergised deltamethrin (0,375 g a.i./t was effective against S. oryzae until 150 days and against R. dominica until 120 days after treatment. Esfenvalerate (0,5 g a.i./t was ineffective against S. oryzae and effective until 60 days after treatment against R. dominica. Fenitrothion (7,5 g a.i./t was ineffective against R. dominica. The use of mixtures of organophosphorus plus pyrethroids were more effective against S. oryzae and R. dominica when compared with these insecticides used alone.

Fumigant Toxicity of Crushed Bulbs of Two Allium Species to Callosobruchus maculatus (Fabricius (Coleoptera: Bruchidae Toxicidad Fumigante para Callosobruchus maculatus (Fabriciu (Coleoptera: Bruchidae de Bulbos Trozados de Especies Allium

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T.I Ofuya

2010-09-01

Full Text Available Fumigant toxicity of crushed fresh bulbs of Allium sativum L. and A. cepa L. to the Callosobruchus maculatus (Fabricius, a major pest of stored cowpea (Vigna unguiculata (L. Walp. seeds was assessed under laboratory conditions in Akure, Nigeria. In the tests, 20 g of infested cowpea seeds were suspended in a piece of muslin cloth, over an amount of crushed bulb in a container with a tightly fitted lid. Adult emergence was completely prevented from freshly laid eggs of C. maculatus on cowpea seeds that was fumigated with 6.0 g or more of crushed bulbs of A. sativum. Such fumigated seeds were not holed at all. Other amounts of A. sativum tested (1.0, 2.0, 3.0, 4.0 and 5.0 g significantly reduced C. maculatus adult emergence from fumigated eggs and seed holing in comparison with the control. Crushed A. sativum was ineffective in preventing adult emergence from fumigated C. maculatus larvae in seeds. The fumigant effect of crushed A. cepa did not kill all C. maculatus eggs. An amount of 7.0 g significantly reduced C. maculatus adult emergence from fumigated eggs and seed holing in comparison with the control. There is good prospect in using crushed bulbs of A. sativum> as fumigant in C. maculatus control in stored cowpea seeds.Se evaluó la toxicidad fumigante de bulbos frescos trozados de Allium sativum L. y A. cepa L. sobre Callosobruchus maculatus (Fabricius, una importante plaga de semilla almacenada de caupí Vigna unguiculata (L. Walp. bajo condiciones de laboratorio en Akure, Nigeria. En las pruebas, 20 g de semillas infestadas se suspendieron en un trozo de tela sobre cierta cantidad de bulbos trozados en un contenedor con una tapa ajustada. Se previno completamente la emergencia de adultos desde huevos recién puestos de C. maculatus en semillas de caupí que se fumigaron con 6,0 g o más de bulbos de A. sativum. Estas semillas fumigadas no estaban ahuecadas. Otras cantidades de A. sativum probadas (1.0, 2.0, 3.0, 4.0 y 5.0 g redujeron

The little shrimp that could: phylogeography of the circumtropical Stenopus hispidus (Crustacea: Decapoda), reveals divergent Atlantic and Pacific lineages

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Iacchei, Matthew; Coleman, Richard R.; Gaither, Michelle R.; Browne, William E.; Bowen, Brian W.; Toonen, Robert J.

2018-01-01

The banded coral shrimp, Stenopus hispidus (Crustacea: Decapoda: Stenopodidea) is a popular marine ornamental species with a circumtropical distribution. The planktonic larval stage lasts ∼120–253 days, indicating considerable dispersal potential, but few studies have investigated genetic connectivity on a global scale in marine invertebrates. To resolve patterns of divergence and phylogeography of S. hispidus, we surveyed 525 bp of mitochondrial cytochrome c oxidase subunit I (COI) from 198 individuals sampled at 10 locations across ∼27,000 km of the species range. Phylogenetic analyses reveal that S. hispidus has a Western Atlantic lineage and a widely distributed Indo-Pacific lineage, separated by sequence divergence of 2.1%. Genetic diversity is much higher in the Western Atlantic (h = 0.929; π = 0.004) relative to the Indo-Pacific (h = 0.105; π Indo-Pacific population expanded more recently (95% HPD (highest posterior density) = 60,000–400,000 yr) than the Western Atlantic population (95% HPD = 300,000–760,000 yr). Divergence of the Western Atlantic and Pacific lineages is estimated at 710,000–1.8 million years ago, which does not readily align with commonly implicated colonization events between the ocean basins. The estimated age of populations contradicts the prevailing dispersal route for tropical marine biodiversity (Indo-Pacific to Atlantic) with the oldest and most diverse population in the Atlantic, and a recent population expansion with a single common haplotype shared throughout the vast Indian and Pacific oceans. In contrast to the circumtropical fishes, this diminutive reef shrimp challenges our understanding of conventional dispersal capabilities of marine species. PMID:29527409

On the presence of the Mediterranean endemic Microdeutopus sporadhi Myers, 1969 (Crustacea: Amphipoda: Aoridae in the Gulf of Naples (Italy with a review on its distribution and ecology

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M. B. SCIPIONE

2013-10-01

Full Text Available The species Microdeutopus sporadhi (Crustacea: Amphipoda: Aoridae, endemic of the Mediterranean Sea, was described by Myers in 1969 on material collected from the Aegean Sea in a sheltered environment with high sedimentation rates. A check on the distribution and ecology of M. sporadhi showed that: — although not mentioned in the checklist of amphipods of the Italian seas, it was already found in the central Tyrrhenian Sea in 1983-84 and in the northern Adriatic Sea in 2002-03; — it was rarely found in the Mediterranean Sea, one of the most studied basins as concerns amphipod fauna; but notwithstanding the few records available, the wide ecological spectrum of this species was pointed out. The present study, conducted off the Island of Ischia (Gulf of Naples, Italy, showed the presence of rich and well established populations through time, but only in a peculiar substratum (artificial collectors and environment (low pH values. The species seems to be able to withstand harsh environmental conditions and probably to conceal itself through a cryptic behaviour, escaping traditional sampling methods. The role of rare or hidden species in bio-assessment should be re-evaluated.

2-Methyl-(Z)-7-Octadecene - the sex pheromone of allopatric Lymantria serva and Lymantria lucescens: two potential invasive species in the Orient

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Paul W. Schaefer; Gerhard Gries; Regine Gries; Yasutomo Higashiura; Yi-Bin Fan

2003-01-01

Our objective was to identify the sex pheromones of two allopatric Lymantria species (Lepidoptera: Lymantriidae): (1) L. serva (Fabricius) in Taiwan whose larvae attack and occasionally defoliate Ficus spp. and (2) L. lucescens (Fabricius) in Honshu, Japan, whose larvae feed on Quercus...

Deep coastal marine taphonomy: investigation into carcass decomposition in the Saanich Inlet, British Columbia using a baited camera.

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Gail S Anderson

Full Text Available Decomposition and faunal colonization of a carcass in the terrestrial environment has been well studied, but knowledge of decomposition in the marine environment is based almost entirely on anecdotal reports. Three pig carcasses were deployed in Saanich Inlet, BC, over 3 years utilizing Ocean Network Canada's VENUS observatory. Each carcass was deployed in late summer/early fall at 99 m under a remotely controlled camera and observed several times a day. Dissolved oxygen, temperature, salinity, density and pressure were continuously measured. Carcass 1 was immediately colonized by Munida quadrispina, Pandalus platyceros and Metacarcinus magister, rapidly scavenged then dragged from view by Day 22. Artifacts specific to each of the crustaceans' feeding patterns were observed. Carcass 2 was scavenged in a similar fashion. Exposed tissue became covered by Orchomenella obtusa (Family Lysianassidae which removed all the internal tissues rapidly. Carcass 3 attracted only a few M. quadrispina, remaining intact, developing a thick filamentous sulphur bacterial mat, until Day 92, when it was skeletonized by crustacea. The major difference between the deployments was dissolved oxygen levels. The first two carcasses were placed when oxygen levels were tolerable, becoming more anoxic. This allowed larger crustacea to feed. However, Carcass 3 was deployed when the water was already extremely anoxic, which prevented larger crustacea from accessing the carcass. The smaller M. quadrispina were unable to break the skin alone. The larger crustacea returned when the Inlet was re-oxygenated in spring. Oxygen levels, therefore, drive the biota in this area, although most crustacea endured stressful levels of oxygen to access the carcasses for much of the time. These data will be valuable in forensic investigations involving submerged bodies, indicating types of water conditions to which the body has been exposed, identifying post-mortem artifacts and providing

Caracterización de isopodos terrestres (Crustacea: Isopoda y su impacto en cultivos hortícolas de Boyacá

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John Wilson Martínez

2014-06-01

Full Text Available Las “cochinillas de humedad” (Crustacea: isopoda, han ido surgiendo como organismos plaga de importancia en agricultura, en países como Brasil y Argentina, en donde causan daños en soya, girasol y pastos. Recientemente se han detectado en Boyacá, afectando cebolla de bulbo, frijol y frutales. Por lo anterior, fué necesario iniciar la caracterización de las especies presentes y la determinación de su impacto en la producción hortícola en algunos municipios de esta región. Se realizó muestreos en Paipa, Tibasosa, Nobsa y Santa Rosa de Viterbo, para determinar la presencia y diversidad de especies de “cochinilla de humedad”; así como, una encuesta para establecer la percepción que tenían los agricultores del daño de estos crustáceos y las estrategias de manejo empleadas. Se evaluaron 8 veredas en Paipa, 7 en Nobsa, 3 en Tibasosa y 1 en Santa Rosa de Viterbo. Se comprobó la presencia de “cochinillas de humedad” en cultivos de frutales, hortalizas y otros, en los municipios muestreados. Se identificaron las especies: Porcellios caber, Porcellio dilatatus, Porcellio pruinosus, Armadillidium vulgare y Armadillidium nasatum. El daño por estos organismos se evidenció en lechuga, brócoli, repollo, remolacha, espinaca, cebolla, cilantro, durazno, frijol, fresa, maíz y papa, especialmente en semillero. El daño observado fué mordedura en hojas (50%, raíz (32,35%, tallo (20,85% y ramas (2,94%. Se percibió falta de conocimiento de los agricultores en el manejo de las “cochinillas de humedad”, utilizándose insecticidas en un 79,41% de los casos, un manejo orgánico en 2,99% y ningún manejo en el 5,88%.

Taxonomic Notes on the Genus Delta de Saussure (Hymenoptera: Vespidae: Eumeninae from Vietnam

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Nguyen, Lien Thi Phuong

2015-02-01

Full Text Available A taxonomic study of the genus Delta de Saussure, 1855 from Vietnam is presented. A total of four species are recorded: D. campaniforme campaniforme (Fabricius, 1775, D. conoideum (Gmelin, 1790, D. esuriens esuriens (Fabricius, 1787, and D. pyriforme pyriforme (Fabricius, 1775. Of these, D. campaniforme campaniforme was first recorded from Vietnam by de Saussure et al., 1904, under the name Eumenes esuriens and is now reconfirmed to occur in Vietnam after more than 100 years, and D. conoideum is newly recorded from Vietnam. A key to species based on morphological characters is given with illustrations, and distributional records in Vietnam are also provided.

Single and combined effects of cadmium and arsenate in Gammarus pulex (Crustacea, Amphipoda): Understanding the links between physiological and behavioural responses

Energy Technology Data Exchange (ETDEWEB)

Vellinger, Céline, E-mail: celine.vellinger@gmail.com [Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine – Metz (France); Gismondi, Eric, E-mail: gismondi.eric@gmail.com [Laboratoire d’Ecologie animale et d’Ecotoxicologie, Institut de Chimie, Université de Liège, Allée du 6 Août 15, B-4000 Sart-Tilman, Liège (Belgium); Felten, Vincent, E-mail: vincent.felten@univ-lorraine.fr [Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine – Metz (France); Rousselle, Philippe, E-mail: rousselle@univ-lorraine.fr [Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine – Metz (France); Mehennaoui, Kahina, E-mail: meh_kahina@yahoo.fr [Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine – Metz (France); Parant, Marc, E-mail: parant@univ-lorraine.fr [Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine – Metz (France); Usseglio-Polatera, Philippe, E-mail: usseglio-polatera@univ-lorraine.fr [Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), CNRS UMR 7360, Université de Lorraine – Metz (France)

2013-09-15

Highlights: •Linking physiological to behavioural responses of G. pulex exposed to AsV and/or Cd. •AsV and/or Cd exposure exhibited similar biomarkers responses. •Contamination increases the mobilization of detoxification systems in gammarids. •Both changes in energy reserve use and allocation are involved in gammarid response. •Increased lipid peroxidation could be the cause of increasing gammarid mortality. -- Abstract: This study aimed at investigating the individual and interactive effects of cadmium (Cd) and arsenate (AsV) in Gammarus pulex (Crustacea, Amphipoda) through the use of several biomarkers. Individuals were exposed for 240 h to two concentrations of AsV or Cd alone, and all the possible binary mixtures of these concentrations of AsV and Cd in a complete factorial design. The pattern of the biomarkers’ responses to Cd and AsV alone or in mixture was similar in Gammarus pulex, even if the response intensity varied depending on the tested conditions. G. pulex responded to contamination with increased mobilization of the detoxification systems [i.e. γ-glutamyl-cystein ligase activity (GCL), reduced glutathione content (GSH) and metallothionein concentrations (MT)]. This response seems to imply changes in energy reserve utilization (total lipids and proteins are used prior to glycogen reserves), but also a possible energy reallocation from locomotion to detoxification processes. The observed increase in lipid peroxidation could be relied to the increasing gammarid mortality, despite the higher mobilization of detoxification systems. Even if the outcome of the complex interactions between AsV and Cd remains difficult to unravel, such studies are critically important for better assessing the effects of stressors on organisms, populations and communities in a multi-contamination context of ecosystems.

Ocorrência e Sazonalidade de Muscóides (Diptera, Calliphoridae de Importância Sanitária no Município de Itaboraí, RJ, Brasil

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José Antonio Batista-da-Silva

2010-04-01

Full Text Available Este trabalho teve como objetivo contribuir com o conhecimento da entomofauna de Calliphoridae (Diptera no município de Itaboraí, RJ, Brasil e quantificar as espécies mais predominantes de importância sanitária. As moscas foram capturadas em oito diferentes pontos no período de um ano, usando sempre isca de peixe. Após triagem, as espécies foram separadas por espécie e inseridas na coleção entomológica do Laboratório de Transmissores de Leishmaniose (Setor de Entomologia Médica e Forense do Instituto Oswaldo Cruz - IOC/FIOCRUZ. Foram capturadas 1792 moscas pertencentes a sete (7 espécies da família Calliphoridae: Chloroprocta idioidea (Robineau-Desvoidy (0,11%, Chrysomya megacephala (Fabricius (87,94%, Chrysomya albiceps (Wiedemann (6,70%, Chrysomya putoria (Wiedemann (1,23%, Cochliomyia macellaria (Fabricius (0,56%, Hemilucilia segmentaria (Fabricius (0,33%, Lucilia eximia (Wiedemann (3,13%.Occurrence and seasonality of muscoid (Diptera, Calliphoridae of public healthimportance in Itaboraí (RJ, BrazilAbstract. This work was carried out to contribute to the knowledge of Calliphoridae flies (Diptera in Itaboraí, RJ, Brazil and quantify the predominant species of health importance. The flies were captured in eight different points in the city over a one year period, always using fish as bait, separated by species and kept properly in an entomological box in the Laboratório de Transmissores de Leishmaniose (Setor de Entomologia Médica e Forense - IOC / FIOCRUZ, RJ. A total of 1792 Calliphoridae flies were captured, belonging to seven (7 species: Chloroprocta idioidea (Robineau-Desvoidy (0.11%, Chrysomya megacephala (Fabricius (87.94%, Chrysomya albiceps (Wiedemann (6.70%, Chrysomya putoria (Wiedemann (1.23%, Cochliomyia macellaria (Fabricius (0.56%, Hemilucilia segmentaria (Fabricius (0.33%, Lucilia eximia (Wiedemann (3.13%.

Avaliação dos métodos de amostragem para fauna perifítica em macrófitas na Reserva da Biosfera, Serra do Espinhaço, Estado de Minas Gerais, Brasil - DOI: 10.4025/actascibiolsci.v30i3.377 Evaluation of sampling methods for periphytic fauna in macrophytes at the Espinhaço Mountain Range Biosphere Reserve, Minas Gerais State, Brazil - DOI: 10.4025/actascibiolsci.v30i3.377

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Cristiane Machado López

2008-10-01

Full Text Available Os métodos “Jarra”, “Remocao Manual” e “Draga de Eckman modificada” foram avaliados para amostrar a fauna perifitica associada a macrofitas aquaticas. Foram coletadas 63 amostras em cinco ambientes lenticos e tres loticos na reserva da biosfera da Serra do Espinhaco (Estado de Minas Gerais, Brasil. Os testes estatisticos Anova e Tukey foram feitos para riqueza de Protista, Rotifera e Crustacea, enquanto para a abundancia de Protista, Rotifera, Crustacea, Gastrotricha, Tardigrada e Nematoda foram avaliados os percentuais. Os protozoarios e rotiferos representaram 80% da abundancia e riqueza da comunidade. Nos ecossistemas avaliados todos os metodos foram relevantes para Protista, por outro lado, o metodo da Jarra foi o mais adequado para a analise de Crustacea. Entre os metodos, a Draga foi menos indicada para os grupos de microinvertebrados nos ecossistemas aquaticos. Os metodos Remocao Manual e Draga foram apropriados para analisar Rotifera. A abundancia de Gastrotricha e Tardigrada demonstrou melhores resultados pelo metodo da Jarra e Nematoda pelo metodo da Draga. Os tres metodos sao apropriados para amostragem da fauna perifitica em ambos os sistemas aquaticos. Entretanto, e importante estar ciente de que para cada tipo de ecossistema a amostragem da comunidade faunistica requer um metodo especifico para obter a melhor performance.The methods “Jar”, “Manual Removal” and “modified Ekman`s Dredge” were evaluated for sampling periphyton fauna associated to aquatic macrophytes. Sixty three samples were collected from five lentic and three lotic water bodies at Espinhaço Mountain Range Biosphere Reserve (Minas Gerais, Brazil. ANOVA and Tukey statistical tests were performed for Protista, Rotifera and Crustacea richness, whilst Protista, Rotifera, Crustacea, Gastrotricha, Tardigrada and Nematoda, abundance were evaluate by percentage. Amongst the three methods, Dregde is less indicated for different water bodies systems

Taxonomic notes on some Polyglyptini: descriptions of new genus and new species (Homoptera, Membracidae, Smiliinae

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Albino M. Sakakibara

1996-01-01

Full Text Available Taxonomic notes on some Polyglyptini; descriptions of new genus and new species (Homoptera, Membracidae, Smiliinae. The genera Hemiptycha Germar, Metheisa Fowler, Maturnaria Metcalf, Aphetea Fowler, Dioclophara Kirkaldy, and Phormophora Stål, are redescribed; Creonus, gen.n. (type species: Maturna lloydi Funkhouser, 1914, and Aphetea robustula, sp.n. (from Bolivia, are described. Some nomenclatural changes are introduced, as follow: - Hemiptycha Germar, 1833 = Polyrhyssa Stål, 1869, syn.n.: - Hemiptycha cultrata (Coquebert, 1801, comb.n., = Polyglyptodes flavocostatus Haviland, 1925, syn.n., = Polyrhyssa cultrata maculata Fonseca, 1942, syn.n. - Hemiptycha obtecta (Fabricius, 1803 = Hille herbicola Haviland, 1925, syn.n. - Maturnaria ephippigera (Fairmaire, 1846 = Publilia tumulata Buckton, 1903, syn.n., = Metheisa fowleri Funkhouser, 1927, syn.n. - Creonus lloydi (Funkhouser, 1914, comb.n. - Aphetea parvula (Fabricius, 1803, comb.n., = Aphetea affinis Haviland, 1925, syn.n. - Dioclophara Kirkaldy, 1904 = lncolea Goding, 1926, syn.n. - Dioclophara viridula (Fairmaire, 1846 = Maturna multilineata Fonseca, 1942, syn.n. - Dioclophara variegata (Goding, 1926, comb.n. = lncolea viridis Goding, 1926, syn.n. - Phormophora maura (Fabricius, 1803 = Darnis dorsata Fabricius, 1803, syn.n.

Tegelikult olid pahad ju luterlased / Anti Selart

Index Scriptorium Estoniae

Selart, Anti, 1973-

2010-01-01

Arvustus: Fabricius, Dionysius. Dionysius Fabriciuse, Viljandi kiriku praosti Liivimaa ajaloo lühiülevaade neljas osas aastast tuhat ükssada viiskümmend kaheksa kuni aastani 1610 = Dionysii Fabricii, Praepositi pontificii Felinensis, Livonicae historiae compendiosa series in quatuor digesta partes ab anno millesimo centesimo quinquagesimo octavo usque ad annum MDCX. [Tartu] : Johannes Esto Ühing, 2010

Effective landscape scale management of Cirsium arvense (Canada thistle) utilizing biological control

Science.gov (United States)

G. P. Markin; D. Larson

2013-01-01

The stem mining weevil, Ceutorhynchus litura Fabricius, the gall forming fly, Urophora cardui L., and the seedhead weevil, Larinus planus Fabricius, were established as biological control agents on an 1800 hectare multiple-habitat wildlife refuge in northwestern Oregon in the mid-1990s. At the time, Canada thistle was the most wide spread, aggressive, and difficult...

Ocorrência e Sazonalidade de Muscóides (Diptera, Calliphoridae de Importância Sanitária no Município de Itaboraí, RJ, Brasil

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José Batista-da-Silva

2010-04-01

Abstract. This work was carried out to contribute to the knowledge of Calliphoridae flies (Diptera in Itaboraí, RJ, Brazil and quantify the predominant species of health importance. The flies were captured in eight different points in the city over a one year period, always using fish as bait, separated by species and kept properly in an entomological box in the Laboratório de Transmissores de Leishmaniose (Setor de Entomologia Médica e Forense - IOC / FIOCRUZ, RJ. A total of 1792 Calliphoridae flies were captured, belonging to seven (7 species: Chloroprocta idioidea (Robineau-Desvoidy (0.11%, Chrysomya megacephala (Fabricius (87.94%, Chrysomya albiceps (Wiedemann (6.70%, Chrysomya putoria (Wiedemann (1.23%, Cochliomyia macellaria (Fabricius (0.56%, Hemilucilia segmentaria (Fabricius (0.33%, Lucilia eximia (Wiedemann (3.13%.

New Coleoptera records from New Brunswick, Canada: Cerambycidae

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Webster,Reginald; Sweeney,Jon; DeMerchant,Ian; Silk,Peter; Mayo,Peter

2012-01-01

Abstract Five species of Cerambycidae, Acmaeops discoideus (Haldeman), Anelaphus villosus (Fabricius), Phymatodes species (CNC sp. n. #1), Sarosesthes fulminans (Fabricius), and Urgleptus signatus (LeConte) are newly recorded for New Brunswick, Canada. All but Acmaeops villosus are new to the Maritime provinces. Phymatodes testaceus (Linnaeus) is removed from the faunal list of the province as a result of mislabeled specimens, records of Phymatodes maculicollis LeConte are presented confirmin...

Descripción de una nueva especie de Mylabris Fabricius, 1875 del subgénero Ammabris Kuzin, 1954 de Marruecos y redescripción de Mylabris (Ammabris boghariensis Raffray, 1873 (Coleoptera, Meloidae

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García-París, M.

2008-06-01

Full Text Available Ammabris Kuzin (1954, a subgenus of Mylabris Fabricius, 1775, includes a small group of fenetically close species associated to semiarid zones and deserts of Northern Africa, Middle East and Central Asia. Mylabris boghariensis Raffray, 1873, one of the least known species, doubtfuly included within the subgenus Ammabris, is known only from its type locality in Algeria. In this study, following the examination of the holotype of M. boghariensis, we expand its morphological description and redefine its nostic traits, including a description of the male genitalia. We confirm the assignation of M. boghariensis to Ammabris. The study of a series of specimens from Northeastern Morocco, phenetically close to M. boghariensis, but clearley differentiable by its external morphological characters and male genitalia, allow us to describe them as a new species, Mylabris avilai sp. nov .We discuss the diagnostic traits of this new species and compare them with all other species of Ammabris. As a result of the comparative morphological study of six especies of Ammabris we discuss the complexity and variability of the characters defining the subgenus, and the taxonomic position of Mylabris sisymbrii Klug, 1834. This study allow us to conclude that the subgenus is morphologically heterogeneous and possibly paraphyletic, in need of a broad systematic revisión to stablish its morphological limits and species composition.El subgénero Ammabris Kuzin, 1954 agrupa a un pequeño conjunto de especies del género Mylabris Fabricius, 1775, fenéticamente afines entre sí y asociadas a zonas semiáridas y desérticas del norte de África, Oriente Próximo y Asia Central. Una de las especies menos conocidas de este subgénero, al que fue atribuida con dudas, es Mylabris boghariensis Raffray, 1873, conocida únicamente de la localidad tipo en Argelia. En este trabajo, tras estudiar un sintipo de M. boghariensis, se amplía la descripción morfológica del taxon y se

[Cross reactivity between fish and shellfish].

Science.gov (United States)

Torres Borrego, J; Martínez Cuevas, J F; Tejero García, J

2003-01-01

In Spain, fish allergy represents 18 % of all cases of food allergy in children while reactions caused by crustacea and mollusks account for 3.8 % and 1.6 % respectively. Cross-reactivity is defined as the recognition of distinct antigens by the same IgE antibody, demonstrable by in vivo and in vitro tests, which clinically manifests as reactions caused by antigens homologous to different species. Subclinical sensitization can also occur, giving rise to patients sensitized to particular fish or shellfish but who do not present symptoms on consumption.Cod and shrimp have been the models used to study allergy to fish and crustacea respectively. The major allergens responsible for cross-reactivity among distinct species of fish and amphibians are proteins that control calcium flow in the muscular sarcoplasm of these animals, called parvalbumins, with a molecular weight of approximately 12 kD and an isoelectric point of 4.75, resistant to the action of heat and enzymatic digestion. Recently, recombinant carp parvalbumin has been reproduced, confirming that this allergen contains 70 % of the IgE epitopes present in natural extract of cod, tuna and salmon, which makes it a valid tool in the diagnosis of patients with fish allergy. Moreover, this recombinant allergen could constitute the basis for the development of immunotherapy against food allergy. In the case of shellfish, a non-taxonomic group that includes crustacea and mollusks, the major allergen is tropomyosin, an essential protein in muscle contraction both in invertebrates and vertebrates. In invertebrates, tropomyosins, which have a molecular weight of between 38 and 41 kD, show great homology in their amino acid sequence and are the panallergens responsible for cross-reactions between crustacea, insects, mites, nematodes, and different classes of mollusks. It is estimated that 50 % of individuals allergic to some type of fish are at risk for reacting to a second species, while those allergic to some type of

Effect of acanthocephalan parasites on hiding behaviour in two species of shore crabs.

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Latham, A D M; Poulin, R

2002-12-01

The effect of acanthocephalan parasites (Profilicollis spp.) on the hiding behaviour during low tide of two species of shore crabs (intermediate hosts), Macrophthalmus hirtipes (Brachyura: Ocypodidae) and Hemigrapsus crenulatus (Brachyura: Grapsidae), was examined at Blueskin Bay, South Island, New Zealand. Exposed M. hirtipes were found to have significantly higher infection levels than did hidden conspecifics. This pattern was not observed for H. crenulatus. Mean cystacanth numbers were found to be considerably higher in M. hirtipes than H. crenulatus. Crabs exposed at low tide are at a greater risk of predation by definitive shorebird hosts than are hidden conspecifics. Preferential manipulation of one intermediate host species over another could influence diversity within ecosystems.

Identification of Host-Plant Volatiles and Characterization of Two Novel General Odorant-Binding Proteins from the Legume Pod Borer, Maruca vitrata Fabricius (Lepidoptera: Crambidae.

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Jing Zhou

Full Text Available Chemoreception is a key feature in selection of host plant by phytophagous insects, and odorant-binding proteins (OBPs are involved in chemical communication of both insects and vertebrates. The legume pod borer, Maruca vitrata Fabricius (Lepidoptera: Crambidae is one of the key pest species of cowpea and widely distributed throughout tropical and subtropical regions, causing up to 80% of yield loss. In this study, we investigated the electrophysiological responses of female M. vitrata to floral volatiles from V. unguiculata. Seventeen electroantennogram-active compounds were identified from floral volatiles of V. unguiculata by coupled gas chromatography-electroantennography (GC-EAD and gas chromatography-mass spectrometry (GC-MS. Then, we cloned two novel full-length GOBP genes (MvitGOBP1 and MvitGOBP2 from the antennae of M. vitrata using reverse transcription PCR. Protein sequence analysis indicated that they shared high sequence similarity with other Pyralididae insect GOBPs and had the typical six-cysteine signature. Real-time PCR analysis indicated that MvitGOBP1-2 mRNA was highly expressed in the antennae of female adult with several thousands-fold difference compare to other tissue. Next, the recombinant MvitGOBP1-2 was expressed in Escherichia coli and purified using Ni ion affinity chromatography. Fluorescence binding assays demonstrated that MvitGOBP1-2 had different binding affinities with 17 volatile odorant molecules including butanoic acid butyl ester, limonene, 4-ethylpropiophenone, 1H-indol-4-ol, butanoic acid octyl ester and 2-methyl-3-phenylpropanal. In the field trapping experiment, these six floral volatiles could effectively attract female moths and showed significant difference compared with the blank lure. These results suggested that MvitGOBPs and the seventeen floral volatiles are likely to function in the olfactory behavior response of female moths, which may have played crucial roles in the selection of oviposition

Estructura del aparato reproductor masculino de Uca uruguayensis (Decapoda, Ocypodidae Structure of the male reproductive tract of Uca uruguayensis (Decapoda, Ocypodidae

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Elena Irene Cuartas

Full Text Available El objetivo de este trabajo es describir las estructuras del sistema reproductor de machos de Uca uruguayensis Nobili, 1901 y estudiar los cambios relacionados con la madurez sexual. Se trabajó con observación estereoscópica de material fresco, técnica histológica de rutina y observaciones en Microscopio Electrónico de Barrido. Se incluyó la caracterización de los gonopodos 1 (G1 y 2 (G2. El tracto reproductor del macho se compone de un par de testículos (T, un vaso deferente (VD tubular y sinuoso y una ampolla terminal (AT. El VD tiene tres secciones, la anterior (VDA, la media (VDM y la posterior (VDP. El VDA y VDM están conformadas por un epitelio simple de células cúbicas. El epitelio del VDP es columnar y con núcleos basales y alongados. El diseño tubular se modifica al ocuparse el lumen del VDP con líquido espermático durante el verano y la musculatura circular se hace más evidente. La porción terminal del VDP se ensancha formando una ampolla (AT que comprende cuatro cámaras interconectadas. Todas las estructuras están rodeadas de una capa de tejido conectivo de poco espesor. Se identifican las modificaciones observadas en la histología de T y VD, definiendo como mas relevantes las observadas desde el mes de noviembre hasta marzo. Estas modificaciones sugieren que U. uruguayensis tiene, en la localidad estudiada, una única estación reproductiva durante el verano en esta latitud. La AT, tal como es descripta, es una estructura que hasta el momento no ha sido mencionada para los Brachyura.The structure of the male reproductive tract was described in Uca uruguayensis Nobili, 1901, by using histological methods, scanning electron microscopy techniques, and stereoscopic observations of fresh material. The aim of this work was to establish the functional changes associated with sexual maturation. The morphology of the first (G1 and second (G2 pair of gonopods was described. The male reproductive tract consists of paired organs: testes, and tubular and convoluted vas deferens (VD ending with a terminal ampoule (TA.The (VD is composed of three parts: anterior (AVD, medial (MVD and posterior (PVD. The AVD and MVD are lined by a single layer of cubical cells. The PVD epithelial cells are columnar with elongated nuclei. The terminal ampoule comprises four interconnecting chambers and is externally surrounded by connective tissue. The study of testes and vas deferens at different times along the year suggests that U. uruguayensis has a single and continuous reproductive season from December to March. The TA has not been described in other brachyurans and this structure is novel to Brachyura.

Evaluation of sampling methods for periphytic fauna in macrophytes at the Espinhaço Mountain Range Biosphere Reserve, Minas Gerais State, Brazil = Avaliação dos métodos de amostragem para fauna perifítica em macrófitas na Reserva da Biosfera, Serra do Espinhaço, Estado de Minas Gerais, Brasil

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Helena Lúcia Menezes Ferreira

2008-07-01

Full Text Available The methods “Jar”, “Manual Removal” and “modified Ekman Dredge” wereevaluated for sampling periphyton fauna associated with aquatic macrophytes. Sixty-three samples were collected from five lentic and three lotic water bodies at the Espinhaço Mountain Range Biosphere Reserve (Minas Gerais State, Brazil. Anova and Tukey statistical tests were performed for Protista, Rotifera and Crustacea richness, whereas the abundance of Protista, Rotifera, Crustacea, Gastrotricha, Tardigrada and Nematoda was evaluated by percentage. Of the three methods, the Dredge is less indicated for different water bodies systems in which there is interest in analyzing various microinvertebrate groups. The Protista and Rotifera represent 80% of the total abundance and richness in the invertebrate community. In the ecosystems evaluated, all methods are relevant for Protistaanalysis; on the other hand, Crustacea analysis required the Jar method. Manual Removal and Dredge methods are appropriate for Rotifera analysis. Gastrotricha and Tardigrada abundance presented better results with the Jar method; Nematoda with the Dredgemethod. The three methods are appropriate for periphyton fauna sampling in both water body systems; nevertheless, it is important to be aware that for each fauna community in a specified ecosystem, there is a specific method for best performance.Os métodos “Jarra”, “Remoção Manual” e “Draga de Eckman modificada” foram avaliados para amostrar a fauna perifítica associada à macrófitas aquáticas. Foram coletadas 63 amostras em cinco ambienteslênticos e três lóticos na reserva da biosfera da Serra do Espinhaço (Estado de Minas Gerais, Brasil. Os testes estatísticos Anova e Tukey foram feitos para riqueza de Protista, Rotifera eCrustacea, enquanto para a abundância de Protista, Rotifera, Crustacea, Gastrotricha, Tardigrada e Nematoda foram avaliados os percentuais. Os protozoários e rotíferos representaram 80% daabund

El subgénero Trigona S. Str. Jurine 1808 (Hymenoptera: Apidae: Meliponinae) en Colombia

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Édgar Javier Hernández Martínez; Guiomar Nates Parra

2004-01-01

Para Colombia se registran 28 de los 29 taxones descritos para el subgénero Trigona s. str. T. (T.) albipennis Almeida, 1992; T. (T.) amalthea Olivier, 1789; T. (T.) hyalinata var. amazonensis Ducke, 1916; T. (T.) hyalinata var. branneri Cockerell, 1912; T. (T.) chanchamayoënsis Schwarz, 1948; T. (T.) cilipes Fabricius, 1804; T. (T.) corvina Cockerell, 1913; T. (T.) crassipes Fabricius, 1793; T. (T.) dallatorreana Friese, 1900; T. (T.) dimidiata var. venezuelana Schwarz, 1948; T. (T.) dimi...

El subgénero Trigona S. Str. Jurine 1808 (Hymenoptera: Apidae: Meliponinae) en Colombia

OpenAIRE

Hernández Martínez Édgar Javier; Nates Parra Guiomar

2004-01-01

Para Colombia se registran 28 de los 29 taxones descritos para el subgénero Trigona s. str. T. (T.) albipennis Almeida, 1992; T. (T.) amalthea Olivier, 1789; T. (T.) hyalinata var. amazonensis
Ducke, 1916; T. (T.) hyalinata var. branneri Cockerell, 1912; T. (T.) chanchamayoënsis Schwarz, 1948; T. (T.) cilipes Fabricius, 1804; T. (T.) corvina Cockerell, 1913; T. (T.) crassipes Fabricius, 1793; T. (T.) dallatorreana Friese, 1900; T. (T.) dimidiata var. venezuelana Schwarz, 1948; T. (...

Abelhas sem ferrão (Hymenoptera: Apidae, Meliponini da Estação Ecológica de Água Limpa, Cataguases-MG, Brasil.

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Hugo Werneck

2014-08-01

Stingless Bees of the Estação Ecológica de Água Limpa, Cataguases-MG, Brazil Abstract. This study carried out a survey of nests of stingless bees present in the Estação Ecológica de Água Limpa (EEAL in the municipality of Cataguases, Minas Gerais. We found twenty-one nests belonging to nine species: Friesella schrottkyi (Friese, Melipona bicolor Lepeletier, Plebeia sp. 1, Plebeia sp. 2, Tetragona clavipes (Fabricius, Tetragona quadrangula (Fabricius, Tetragonisca angustula (Latreille, Trigona hyalinata (Lepeletier, Trigona spinipes (Fabricius. Twenty of the 21 nests were found in arboreal substrate. The fauna of stingless bees observed in EEAL is represented by a low number of species. Although the local vegetation has the potential to provide substrates for nesting and floral resources, the low species richness may be related to the fact that the EEAL is an isolated forest remnant.

The types of Palaearctic species of the families Apionidae, Rhynchitidae, Attelabidae and Curculionidae in the collection of Étienne Louis Geoffroy (Coleoptera, Curculionoidea

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Alonso-Zarazaga, M. A.

2008-06-01

Full Text Available The study of 131 more or less complete Curculionoid specimens of the collection Étienne Louis Geoffroy, conserved in the Muséum d’Histoire Naturelle de Paris (Entomologie has permitted the identification of several nominal species that were nomina dubia and the establishment of several new synonymies and combinations, and, in some cases, the reversion of precedence following Art. 23.9 of the Code, declaring nomina protecta and nomina oblita. New synonymies are (the first term is the valid name: Lixus filiformis (Fabricius, 1781 = Curculio longus Gmelin, 1790; Lasiorhynchites cavifrons (Gyllenhal, 1833 nom. protectum = Rhinomacer viridis Geoffroy, 1785, nom. oblitum; Byctiscus betulae (Linnaeus, 1758 = Rhinomacer auratus Geoffroy, 1785; Neocoenorrhinus pauxillus (Germar, 1824 nom. protectum = Rhinomacer caeruleus Geoffroy, 1785, nom. oblitum; Deporaus betulae (Linnaeus, 1758 = Curculio nigrostriatus Goeze, 1777 = Rhinomacer niger Geoffroy, 1785 = Curculio fuliginosus Gmelin, 1790; Coniocleonus hollbergii (F√•hraeus, 1842 = Curculio sulcatus Goeze, 1777 = Curculio sulcatus Geoffroy, 1785 = Curculio sulcatus Gmelin, 1790; Larinus iaceae (Fabricius, 1775 = Curculio carduelis Goeze, 1777; Hypera postica (Gyllenhal, 1813, nom. protectum = Curculio fasciolatus Geoffroy, 1785, nom. oblitum; Charagmus griseus (Fabricius, 1775 = Curculio cupreosquamosus Goeze, 1777 = Curculio intersectus Geoffroy, 1785 = Curculio squamosus Gmelin, 1790; Sitona hispidulus (Fabricius, 1777 = Curculio griseus Goeze, 1777 = Curculio modestus Geoffroy, 1785 = Curculio geoffroaei Gmelin, 1790; Aulacobaris cuprirostris (Fabricius, 1787 = Curculio viridisericeus Goeze, 1777; Cleopomiarus plantarum (Germar, 1824, nom. protectum =

New records of petiolate potter wasps (Hymenoptera: Vespidae: Eumeninae from Bhutan

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Tshering Nidup

2016-10-01

Full Text Available A total of seven species from five genera, Delta de Saussure, 1855, Eumenes Latreille, 1802, Pareumenes (de Saussure, 1855, Labus de Saussure, 1867, and Zethus Fabricius, 1804, belonging to the subfamily Eumeninae of the family Vespidae are documented. Pareumenes quadrispinosus acutus Liu, 1941, Delta esuriens (Fabricius, 1787, D. conoideum (Gmelin, 1790, E. gibbosus Nguyen, 2015, Labus pusillus van der Vecht, 1963 and Zethus dolosus Bingham, 1897, including the subspecies P. q. acutus Liu, 1941, are new records for Bhutan. 

Discovering Mira Ceti: Celestial Change and Cosmic Continuity

Science.gov (United States)

Hatch, Robert Alan

In the short narrative that follows I introduce two new heroes. Although we begin with Fabricius's first sighting in 1596, the new pivot point in the drama is the collaboration between Hevelius and Boulliau that began around 1660. As it happens, Learned Europe paid little attention to Mira in the generation after the first scattered sightings of 1596, indeed, nearly 70 years passed before the New Star was given a working identity. Like Columbus discovering America, Fabricius and Holwarda saw different things - for convenience, I call them Fabricius's Star and Holwarda's Star. Hevelius's Historiola (Danzig, 1662) and Boulliau's Ad astronomos (Paris, 1667) presented a different vision. It made Mira famous. As I shall argue, if Hevelius gave Mira a history, Boulliau gave Mira a future.5 In the end, the New Star not only challenged the ancient cosmos, it became an enduring icon for the New Science, a returning reminder of celestial continuity and cosmic order.

Predaceous diving beetles (Coleoptera: Dytiscidae from Montenegro with new records and description of the female of Hydroporus Macedonicus Fery & Pešić, 2006

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Pavićević Ana

2011-01-01

Full Text Available This paper deals with the aquatic beetle species of the family Dytiscidae collected from various freshwaters habitats in Montenegro. In total 39 water beetle species were collected from 56 localities in Montenegro between 2007 and 2010. Twelve species and one subspecies are reported for the first time for Montenegro: Agabus sturmii (Gyllenhal, 1808, A. paludosus (Fabricius, 1801, Deronectes moestus inconspectus (Leprieur, 1876, D. platynotus (Germar, 1834, Dytiscus circumcinctus Ahrens, 1811, D. dimidiatus Bergstrдsser, 1778, Hydroporus macedonicus Fery & Pešić, 2006, H. pubescens (Gyllenhal, 1808, Ilybius chalconatus (Panzer, 1797, I. fuliginosus fuliginosus (Fabricius, 1792, I. pseudoneglectus (Franciscolo, 1972, Liopterus haemorrhoidalis (Fabricius, 1787 and Nebrioporus luctuosus (Aubй, 1838. The female genitalia of Hydroporus macedonicus Fery & Pešić, 2006, a rare water beetle previously known only from southern Macedonia, are illustrated. The present state of knowledge of the Montenegrin diving beetle fauna and its ecological characteristics is discussed.

Eficácia do diflubenzuron no controle de Dolops carvalhoi (Crustacea: Branchiura em jovens pacus Piaractus mesopotamicus (Osteichthyes: Characidae naturalmente infectados - DOI: 10.4025/actascianimsci.v27i2.1235 Diflubenzuron effectiveness in Dolops carvalhoi (Crustacea: Branchiura control in juvenile pacus Piaractus mesopotamicus (Osteichthyes: Characidae naturally infected - DOI: 10.4025/actascianimsci.v27i2.1235

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Julieta Rodini Engrácia de Moraes

2005-03-01

Full Text Available Neste ensaio, avaliou-se a eficácia terapêutica do diflubenzuron contra o crustáceo Dolops carvalhoi (Crustacea: Branchiura em pacus Piaractus mesopotamicus Holmberg 1887 (Osteichthyes: Characidae naturalmente infestados. A droga foi aplicada três vezes na concentração de 2,0 mg/L de água, na forma de banhos com trinta minutos de duração e intervalo de 24 horas. Um grupo controle foi submetido ao mesmo procedimento, sem a adição do fármaco à água. A avaliação parasitológica revelou que a eficácia da droga foi de 97,2%. No grupo tratado houve redução da glicemia, aumento da quantidade de eritrócitos, redução do percentual de células granulocíticas especiais e aumento da quantidade de trombócitos circulantes coincidentes com a eliminação dos parasitos, quando comparado ao grupo controle. Os resultados indicam que ocorreu melhora marcante na saúde dos peixesThis research evaluated the therapeutic efficacy of diflubenzuron against Dolops carvalhoi (Crustacean: Branchiura in Piaractus mesopotamicus (Osteichthyes: Characidae naturally infested. The drug was applied three times, at a dose of 2.0 mg/L of water, in the form of baths within thirty minutes and an interval of 24 hours. A control group was submitted to the same procedure, but without pharmaco in the water. The parasitological evaluation showed that the drug effectiveness was 97.2%. In the treated group there were glycemia reduction, increase in the erythrocyte number, decrease in the percentage of special granulocytic cells and increase in the number of circulant trombocytes similar to the parasites elimination when compared to the control group. Results showed an important improvement in fish health

Checklist of butterfly (Insecta: Lepidoptera fauna of Tehsil Tangi, Khyber Pakhtunkhwa, Pakistan

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Farzana Khan Perveen

2015-12-01

Full Text Available The butterflies (Insecta: Lepidopteraare well known insects, play an important role in the ecosystem as bioindicators and pollinators. They have bright colours, remarkable shapes and supple flight. The present study was conducted to prepare the checklist of butterfly fauna of Tehsil Tangi during August, 2014 to May, 2015. A total of 506 specimens were collected belong to 3 families with 18 genera and 23 species. The collected species are the common or lemon emigrant, Catopsila ponoma Fabricius; mottled emigrant, Catopsilia pyranthe Linnaeus; clouded yellow, Colias fieldii Fabricius; common grass yellow, Eurema hecabe Linnaeus; eastern pale clouded yellow butterfly, Colias erate Esper; Indian cabbage white, Pieris canidia Sparrman; Indian little orange tip, Colotis etrida Boisduval; pioneer white or African caper white, Belonias aurota Fabricius; plain tiger, Danaua chrysippus Linnaeus; blue tiger, Tirumala liminniace Cramer; peacock pansy, Junonia almanac Linnaeus; Indian fritillary, Argyreus hyperbius Linnaeus; Indian red admiral, Venesa indica Herbst; yellow pansy, Junonia hierta Fabricius; blue pansy, Junonia orytha Linnaeus; white edged rock brown, Hipparchia parisatis Kollar; banded tree brwon, Lethe confuse Aurivillius; common castor, Ariadne merione Cramer; painted lady, Caynthia cardui Linnaeus; Himalayan sailer, Neptis mahendra Moore; common boran, Euthalia garuda Hewitson; lime butterfly, Papilio demoleus Linnaeus and great black mormon butterfly, Papilio polytes Linnaeus. It was concluded that the family Nymphalidae has the highest numbers of individuals in the present checklist. It is recommended that butterfly fauna of the study area should be conserved and their habitat should be protected.

Morphology and identification of the final instar nymphs of three cicadas (Hemiptera, Cicadidae) in Guanzhong Plain, China based on comparative morphometrics.

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Hou, Zehai; Li, Qinglong; Wei, Cong

2014-01-01

The present investigation provides comparative morphometrics of the final instar nymphs of three dominant cicada species, i.e., Cryptotympana atrata (Fabricius), Meimuna mongolica (Distant) and Platypleura kaempferi (Fabricius), in Guanzhong Plain, China. Particularly, characters on the antennae, legs, and apex of abdomen of both males and females of these three species were investigated and analyzed. In addition, the numbers of hind tibial spines of the final instar nymphs of 21 representatives of Cicadoidea were compared. The results provide useful characteristics for nymph identification of related species and for further taxonomic and phylogenetic analysis of Cicadoidea.

Activity and feeding of Dotilla fenestrata (Brachyura: Ocypodidae) in ...

African Journals Online (AJOL)

The activity of and consumption of organic material by the sand-bubbler crab Dotilla fenestrata was studied over neap and spring tides on a sheltered sand bank close to the mouth of the warm, temperate Kowie Estuary, South Africa. Crabs emerged from their burrows only after the tide receded, and it was light. Time to ...

Larval development and post-settlement metamorphosis of the barnacle Balanus albicostatus Pilsbry and the serpulid polychaete Pomatoleios kraussii Baird: Impact of a commonly used antifouling biocide, Irgarol 1051

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Khandeparker, L.; Desai, D.V.; Shirayama, Y.

The impact of a commonly-used antifouling algicide, Irgarol 1051, on the larval development and post-settlement metamorphosis of the barnacle, Balanus albicostatus Pilsbry (Crustacea: Cirripedia), and the larval metamorphosis of a serpulid...

Estudos higiênicos sôbre os crustáceos e moluscos da Baía de Guanabara (Rio de Janeiro

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Lejeune Pacheco Henriques de Oliveira

1944-04-01

Full Text Available Revisão da literatura médica sôbre higiene de crustáceos e moluscos marinhos. Intoxicações por elementos extranhos às carnes de crustáceos e moluscos: por sais de cobre, vegetais tóxicos; estranho e chumbo nas conservas de crustáceos; botulismo. Putrefação de ostras e doenças de ostras provocadas por cogumelos; crustáceos e moluscos guardados em geladeiras bolorentas. Lista das espécies de moluscos comestíveis da Bahia de Guanabara. Lista das espécies de crustáceos comestíveis da Bahia de Guanabara. Veiculação de micro-organismos patogênicos ao homem por intermédio das carnes de crustáceos e de moluscos: veiculação do vibrião colérico, dos bacilos tíficos e paratíficos e de germes do grupo coli e do gênero Proteus. Vitalidade dos bacilos tíficos nas ostras. Listas dos moluscos veiculadores dos agentes causadores das febres tíficas e paratíficas. Conceitos antigos e modernos sõbre intoxicações por crustáceos; partidas de crustáceos salubres ou não conforme o local de venda. Estudos experimentais sôbre a "talassina" princípio tóxico existente em alguns crustáceos. "Mitilotoxina", intoxicações por mexilhões e outros acidentes incriminados aos moluscos. Enterotoxina estavfilocócica em ostras. Métodos de determinação da salubridade dos moluscos; verificações nas ostras brasileiras. Depuração dos crustáceos pelas soluções cloradas. Estabulação de caranguejos denominados vulgarmente de "guaiamus" e "ussás".Recording main medical publication on Hygiene of Mollusca and Crustacea. Food-poisoning. Decomposing oysters, and shell-fish sickness by fungi. Catalogue of eatable Crustacea and Mollusca of Rio de Janeiro. Significance of Mollusca and Crustacea in the spread of diseases. Longevity of Vibrio comma, Eberthella typhosa, Salmonella schottmuelleri, Salmonella paratiphi. Escherichia coli in oysters, Microorganisms in marked oysters. Comparison old written papers with moderns publications on food

A report on occurrence of aphidophagous predators of Aphis odinae (van der Goot (Hemiptera: Aphididae in cashew ecosystem from Goa, India

Directory of Open Access Journals (Sweden)

Ramasamy Maruthadurai

2017-02-01

Full Text Available The aphid, Aphis odinae (Van der Goot (Hemiptera: Aphididae is a polyphagous, occasional insect pest of cashew.  A field survey was conducted from 2014 to 2015 in cashew plantations to record the incidence of aphid and its predators.  Periodical sampling revealed, the occurrence of six species of aphidophagous predators comprising three species of coccinellids, viz., Scymnus castaneus Sicard, Cheilomenes sexmaculata (Fabricius and Pseudaspidimerus flaviceps (Walker and three species of syrphids, viz., Paragus serratus (Fabricius, Dideopsis aegrota (Fabricius and Ischidon scutellaris (Fabricius were found predating on A. odinae.  All the immature stages of predators were found predating on first, second, third and fourth instars of the aphid.  Among the coccinellids, the dominant species were S. castaneus (4.26 grubs/nut followed by C. sexmaculata (0.42 grubs/leaf and P. flaviceps (0.14 grubs/nut.  Of the syrphids, P. serratus 2.39 larvae/nut was the major predator. The species D. aegrota (1.2 larvae/leaf and I. scutellaris (0.5 larvae/nut were recorded as minor predators.  Seasonal abundance of predators was synchronized with the aphid with a maximum occurrence during February 2015.  The aphid population gradually reduced from April onwards due to the voracious feeding activity of the predators.  The study concluded that the aphidophagous predators, viz., coccinellids and syrphids play a  major role in managing the aphid A. odinae in cashew and could be encouraged for augmentation and conservation of these predators in a cashew based ecosystem.

Lindersin B from Lindernia crustacea induces neuritogenesis by activation of tyrosine kinase A/phosphatidylinositol 3 kinase/extracellular signal-regulated kinase signaling pathway.

Science.gov (United States)

Cheng, Lihong; Ye, Ying; Xiang, Lan; Osada, Hiroyuki; Qi, Jianhua

2017-01-15

Neurotrophic factors such as nerve growth factor (NGF) play important roles in nervous system. NGF is a potential therapeutic drug for treatment of neurodegenerative diseases. However, because of physicochemical property, NGF cannot pass through the blood-brain barrier (BBB). Hence, small molecules which exhibit NGF-mimic activity and can pass through the BBB are considered to be promising drug candidates for treatment of such diseases. The present study was designed to isolate NGF-mimic substance from extract of natural products, determine their structures and investigate mechanism of action of the active substance. Extract of Lindernia crustacean was partitioned between water and ethyl acetate to obtain water layer and ethyl acetate layer samples, respectively, and then evaluated their neuritogenic activity in PC12 cells. The active sample was separated by open columns, followed by HPLC purification to obtain active compound. Then, specific inhibitors were used to investigate signaling pathway of neurite outgrowth induced by the active compound. Finally, western blot analysis was performed to confirm the pathway proposed by inhibitor experiments. The ethyl acetate layer sample of extract of Lindernia crustacea exhibited significant neuritogenic activity. Two new compounds, named as linderside A and lindersin B, were isolated; their structures were elucidated by spectroscopic and chemical derivatization methods. Linderside A is a cucurbitane glycoside, whereas lindersin B is a cucurbitane triterpenoid. Each compound has an unusual isopentene unit, namely, a double bond bound to an unmodified isopropyl group at the end of cucurbitane triterpenoid side chain. Among them, lindersin B induced significant neurite outgrowth in PC12 cells, while linderside A was inactive against PC12 cells. Western blotting analysis results showed that lindersin B-induced neuritogenic activity depended on the activation of the mitogen-activated protein kinase (MAPK)/extracellular signal

Quantitative aspects of oxygen and carbon dioxide exchange ...

African Journals Online (AJOL)

Quantitative aspects of oxygen and carbon dioxide exchange through the ... ceratophthalmus (Crustacea: Decapoda) during rest and exercise in water and ... intersects zero time on the x-axis, indicating rapid gas exchange at the lung surface.

2531-IJBCS-Article-Etchian Olivier Assoi

African Journals Online (AJOL)

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Herklots, 1851 (Crustacea, Brachyura, Gecarcinidae) from the estuarine region of the Comoe ... (or 'land-dwelling' crabs), based on the terrestrial habits shown by adults ...... composition, growth pattern and feeding habits of the blue crab, ...

An update of the blow flies (Diptera: Calliphoridae) of the Galápagos Islands, and first record of Chrysomya rufifacies (Macquart) from mainland Ecuador.

Science.gov (United States)

Tantawi, Tarek I; Sinclair, Bradley J

2013-12-19

Seven species of Calliphoridae are reported from the Galápagos Islands, Ecuador: Lucilia pionia (Walker), L. setosa (James), L. deceptor (Curran), L. eximia (Wiedemann), Cochliomyia macellaria (Fabricius), Chrysomya albiceps (Wiedemann), and Chrysomya megacephala (Fabricius). Lucilia eximia is newly recorded from the islands. Lucilia sp. near pionia is recorded from the island of Española. The distribution and collection records of these species are discussed and listed, and a key to their identification is provided. Chrysomya rufifacies (Macquart) is reported for the first time from mainland Ecuador and the identification of this species is outlined.

Primer registro de Tremex fuscicornis (Hymenoptera: Siricidae para la Argentina en una plantación de álamos en Buenos Aires First record of Tremex fuscicornis (Hymenoptera: Siricidae in Argentina infesting a poplar plantation in Buenos Aires

Directory of Open Access Journals (Sweden)

Lucas Landi

2011-12-01

Full Text Available La presencia de la "avispa taladradora de las latifoliadas", Tremex fuscicornis Fabricius (Hymenoptera: Siricidae, fue detectada en una plantación de álamos de la provincia de Buenos Aires, lo que constituye el primer registro de la especie para la Argentina. Se describen aspectos morfológicos y biológicos de la misma.The presence of the woodwasp Tremex fuscicornis Fabricius (Hymenoptera: Siricidae was detected in a poplar plantation in Buenos Aires. This is the first record of the species in Argentina. Morphological and biological aspects of the woodwasp are described.

A taxonomic review of the genus Antodynerus de Saussure, 1855 (Hymenoptera: Vespidae: Eumeninae) from the Indian subcontinent.

Science.gov (United States)

Kumar, Girish P; Carpenter, James M

2013-10-30

The genus Antodynerus de Saussure, 1855 is reviewed from the Indian subcontinent. Three species with one additional subspecies are present, namely Antodynerus flavescens flavescens (Fabricius, 1775), A. f. karachiensis Giordani Soika, 1970, A. limbatus (de Saussure, 1852), and A. punctatipennis (de Saussure, 1853). The parasitic association of strepsipteran insects and the symbiotic association of mites are reported for the first time in the genus Antodynerus. The distribution of A. f. flavescens (Fabricius) and A. limbatus (de Saussure) in the Indian states is augmented. The latter species is newly recorded from China (Tibet). A key to species of the Indian subcontinent is provided.

Morphology and identification of the final instar nymphs of three cicadas (Hemiptera, Cicadidae in Guanzhong Plain, China based on comparative morphometrics

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Zehai Hou

2014-07-01

Full Text Available The present investigation provides comparative morphometrics of the final instar nymphs of three dominant cicada species, i.e., Cryptotympana atrata (Fabricius, Meimuna mongolica (Distant and Platypleura kaempferi (Fabricius, in Guanzhong Plain, China. Particularly, characters on the antennae, legs, and apex of abdomen of both males and females of these three species were investigated and analyzed. In addition, the numbers of hind tibial spines of the final instar nymphs of 21 representatives of Cicadoidea were compared. The results provide useful characteristics for nymph identification of related species and for further taxonomic and phylogenetic analysis of Cicadoidea.

CONTRIBUTIONS TO THE FUNCTIONAL MORPHOLOGY OF ...

African Journals Online (AJOL)

BRANCH: FEEDING MECHANISM OF SYNGNATHUS. 71. Vomar. PalatinQ: ..... the fish is capable of capturing crustacea over a centimeter from its mouth. 2. Muscle action .... on the type of feeding habits, for the prey is swallowed whole.

Benthos off Cochin, Southwest coast of India

Digital Repository Service at National Institute of Oceanography (India)

Harkantra, S.N.; Parulekar, A.H.

Macro-invertebrate benthic fauna off Cochin mainly composed of polychaeta (82.45%), crustacea (7.62%), mollusca (5.92%), sipuncula (2.25%), nemertinea (0.96%) and echinodermata (0.80%). The maximum population density and biomass values were 304 plus...

Análise melissopalinológica e estrutura de ninho de abelhas Trigona spinipes (Fabricius, 1793 (Hymenoptera: Apidae encontradas no Campus da Universidade Federal de Sergipe, São Cristovão, SE

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Maria Emilene Correia Oliveira

2008-08-01

Full Text Available Resumo. A tribo Trigonini abrange o maior número de gêneros e espécies de abelhas, existindo espécies que ainda não foram estudadas e características biológicas e ecológicas que ainda são desconhecidas. As abelhas Trigona spinipes (Fabricius são descritas como agente polinizador de diversas culturas, podendo ser utilizada inclusive como agente polinizador comercial. O objetivo do trabalho foi realizar estudos sobre a abelha T. spinipes, buscando conhecer aspectos de sua biologia, preferências e hábitos alimentares, a partir do acompanhamento dos ninhos existentes no Campus da Universidade Federal de Sergipe, situado na cidade de São Cristóvão, SE. Os seguintes parâmetros foram avaliados: atividade de vôo, estrutura de ninho, umidade, grau brix e pH no mel, e avaliação palinológica do mel e tipos polínicos observados nos ninhos. Foram encontrados 20 ninhos de T. spinipes, as médias de entradas de abelhas foram 298,72 e saídas 282,16. O volume médio dos potes de mel foi de 0,459 mL (p > 0.05, o peso médio de 0,9573 g, (p = 0.05, and the medium weight 0.9573 g, (p <0.01. The humidity text the same to 24.20%, degree brix (soluble solids equal to 74.50 and pH 3.58. In the pollen the dominant grain belonged to the family Celastraceae (46% and honey the grain of dominant pollen belonged to the family Euphorbiaceae (51%. The diversity of pollens grains found in its victuals evidences the potential of the trigona as polinizador.

Analysis of the gut contents of the needlefish, Hyporhamphus ...

African Journals Online (AJOL)

Food items were identified as far as possible. Amphipods and isopods were usually broken up and difficult to separate, and consequently grouped together in the .... Protozoa. Foraminifera. Filamentous algae. Aquatic macrophytes. Ruppia spiralis +. Potamogeton pectinatus. Polychaeta. Crustacea. Ostracoda. Copepoda.

Observations on the occurrence of the fish louse Argu/us japonicus ...

African Journals Online (AJOL)

Combining the available literature on the feeding of these two species (Talbot 1955; ... for the presence of fish lice, Argulus (Crustacea: Branchiura) directly after .... Schoonbee (1969) carrying out a study of the feeding habits of the fish in Lake ...

Short Communication Energy and ash contents of sandy beach ...

African Journals Online (AJOL)

mean size of the species; in the case of the Crustacea increasing with size within ... carnivorous or scavenging habits, depending on what oppor- tunities present themselves ..... to ilS feeding mode of ingesting sand. Animals that were used in ...

Mineral in skeletal elements of the terrestrial crustacean Porcellio scaber: SR mu CT of function related distribution and changes during the moult cycle

Czech Academy of Sciences Publication Activity Database

Ziegler, A.; Neues, F.; Janáček, Jiří; Beckmann, F.; Epple, M.

2017-01-01

Roč. 46, č. 1 (2017), s. 63-76 ISSN 1467-8039 Institutional support: RVO:67985823 Keywords : crustacea * isopoda * mineral * moult * oniscidea * synchrotron-radiation microtomography Subject RIV: EA - Cell Biology OBOR OECD: Developmental biology Impact factor: 1.546, year: 2016

Crab and shellfish occurrences in the newly-grown mangrove habitats in southern Thailand

Science.gov (United States)

Yeesin, P.; Bautip, S.; Chesoh, S.

2018-04-01

Mangrove crabs and shellfish populating in Prince of Songkla University’s new grown mangrove forest were investigated from January 2011 to December 2011 and then repeated annually. A total of 12 species under 6 families of crab and 11 species under 5 families of shellfish were recorded. The most abundant family of crab was Sesarmidae (64.18 %), followed by Ocypodidae, Varunidae, Macrophthalmidae, Portunidae and Dotillidae. Episesarma mederi ( H. Milne Edwards, 1853) showed highest dominant species. In addition, the most dominant family of shellfish was Potamididae (13.79 %), followed by Melampidae, Assimineidae, Onchidiidae and Littorinidae. Sea snail (Cerithidae quadrata; Sowerby, 1866) presented the most dominant coastal mollusc species. Abundance and diversification crabs and mollusks show important component of food web of this type ecosystem. However, only trapped hold samples during low tide were collected but this preliminary finding enables reasonable specified regulation measures.

Apoptose e expressão de VP2 e GAPDH na infecção precoce pelo vírus da doença infecciosa da bursa de Fabricius em pintos SPF Apoptosis and expression of VP2 and GADPH in an experimental infectious bursal disease in SPF chicks

Directory of Open Access Journals (Sweden)

J.J. Batista

2007-04-01

Full Text Available Vinte e nove pintos SPF de um dia foram inoculados com o vírus da doença infecciosa da bursa de Fabricius (VDIB para avaliar a ocorrência precoce de apoptose e a expressão da proteína viral 2 (VP2 e da enzima gliceraldeído fosfato dehidrogenase (GAPDH. Os animais foram distribuídos em cinco grupos: 1-controle; e 2 a 5- com 24, 48, 72 e 96 horas pós-inoculação, respectivamente. Fragmentos da bursa de Fabricius foram colhidos para processamento histológico e extração de RNA. Lâminas coradas em HE e TUNEL (marcação in situ da fragmentação do genoma com transferase terminal de deoxinucleotídeo foram utilizadas na morfometria do índice apoptótico. Amostras de mRNA foram testadas para a expressão dos genes VP2 e GAPDH utilizando-se transcrição reversa e RT-PCR. Utilizou-se um kit SYBR GREEN PCR, e a reação foi desenvolvida em ABI Prism 7000 SDS. Os índices apoptóticos cresceram progressivamente indicando uma relação na atrofia bursal causada pelo VDIB. Paralelamente, os resultados da PCR em tempo real demonstraram queda da carga viral nas células linfóides da bursa nos diferentes intervalos de tempo do experimento. Esses resultados sugerem um papel protetor da apoptose na diminuição da replicação viral.Twenty-nine SPF 1-day-old chicks were inoculated with infectious bursal disease virus (IBDV to evaluate early apoptosis and the expression of viral protein 2 (VP2 and glyceraldehyde-3-phosphate dehydrogenease (GAPDH. Five groups were formed: G1-control -and G2 to G5, - 24, 48, 72 and 96 hours post inoculation, respectively. Half of each BF was fixed and processed by routine techniques. To quantify apoptosis, 5µm-thick sections were stained with HE and submitted to TUNEL (terminal transferase UDP nick end labeling technique. mRNA was extracted from pooled samples of 3 animals/group and used for the expression of VP2 and GADPH genes using the reverse transcription and real-time polymerase chain reaction (RT-PCR. A SYBR

Effects of molting and environmental factors on trace metal body-burdens and hemocyanin concentrations in the American lobster, Homarus americanus.

NARCIS (Netherlands)

Engel, D.W.; Brouwer, M.H.J.; Mercaldo-Allen, R.

2001-01-01

Hemocyanin concentrations in the hemolymph of marine crustacea are dependent on the molt cycle and on environmental conditions. Studies in our laboratories have found that hemocyanin levels in blue crabs are reduced after ecdysis and under conditions of environmental stress (Engel, Brouwer, &

Food, novel foods, and allergenicity

NARCIS (Netherlands)

Loveren H van; LPI

2002-01-01

Certain foods lead may to allergic responses in certain individuals. Main allergenic foods are Crustacea (shrimp, lobster, crab), egg, fish, milk, peanuts, soybeans, tree nuts, and wheat, and allergens are always proteins. A wide array of symptoms can result from food allergy (gastrointestinal,

The barnacles Chirona (Striatobalanus) amaryllis (Darwin 1854 ...

African Journals Online (AJOL)

Crustacea, Cirripedia) from the hull of a ship that had been operating for five months in the Gulf of Guinea and off Sierra Leone triggered a closer investigation of the cirriped fauna of the West African coast. Both C. amaryllis and Megabalanus ...

The genus Gnathia Leach (Isopoda) from the Santa Marta area, northern Colombia, with a review of Gnathiidea from the Caribbean Sea and Gulf of Mexico

NARCIS (Netherlands)

Müller, Hans-Georg

1988-01-01

Six species of the genus Gnathia (Crustacea: Isopoda: Gnathiidea) are recorded from the Caribbean Sea of northern Colombia. Gnathia gonzalezi n. sp., Gnathia magdalenensis n. sp., Gnathia samariensis n. sp., and Gnathia vellosa n. sp. are described; Gnathia beethoveni Paul & Menzies, 1971 and

Stomach contents of some shore-caught teleosts of Natal, South Mrica

African Journals Online (AJOL)

1985-09-25

Sep 25, 1985 ... Natal nearshore substratum were visually analysed for percentage composition. Commonly caught fish, namely. Rhabdosargus sarba, R. holubi, Pomadasys commersonni,. Trachinotus african us and T. bot/a, were opportunistic omnivorous predators and fed largely on sand mussels and benthic crustacea.

Identification of a cross-reactive allergen (presumably tropomyosin) in shrimp, mite and insects

NARCIS (Netherlands)

Witteman, A. M.; Akkerdaas, J. H.; van Leeuwen, J.; van der Zee, J. S.; Aalberse, R. C.

1994-01-01

A monoclonal antibody to Dermatophagoides pteronyssinus is described that cross-reacts with an IgE-binding antigen present in insects, Crustacea (e.g. shrimp) and other invertebrates. By means of sodium dodecyl sulfate-polyacrylamide gel electrophoresis, gel filtration and immunofluorescence it was

Composición taxonómica del zooplancton del embalse de Betania, departamento del Huila, Colombia

Directory of Open Access Journals (Sweden)

Yimy Herrera Martinez

1999-01-01

Full Text Available To determine the species composition of the zooplancton in the reservoir Betania (altitude; 560 m.a.s.l.; area: 7.4 km2; vol: 1971 x 106 m3; mean depht 28 m, at seven sites and several depths, bimonthly net samples (100 and 200 microns mesh size were taken during 1991.  Alltogether 24 species were found: Thermocyclops decipiens (Crustacea, Copepoda, Moina sp., Ceriodaphnia cornuta y Allona sp. (Crustacea, Cladocera; 19 species of rotífers, of which 7 belong to the genus Brachionus, as well as larvas of the dipter Chaoborus sp. For the first time Brachionus havanaensis, B. falcatus falcatus, b. quadridentatus, y Platyias cuadricornis  f. brevispinus  were found in Colombia.  The species composition was compared with the composition of other lakes and comparison shows that the Betania reservoir has a typical species composition for warms tropical lakes.

Immunomodulation in gut-associated lymphoid tissue of neonatal chicks by immunobiotic diets.

Science.gov (United States)

Sato, K; Takahashi, K; Tohno, M; Miura, Y; Kamada, T; Ikegami, S; Kitazawa, H

2009-12-01

Developmental changes in immunocompetent cells of the gut during the first week posthatch were determined in broiler chicks fed immunobiotic lactic acid bacteria in the form of Lactobacillus jensenii TL2937-, Lactobacillus gasseri JCM1131(T)-, Lactobacillus delbrueckii ssp. bulgaricus NIAIB6-, or L. gasseri TL2919-supplemented diets. The relative weights of spleen and bursa of Fabricius in chicks fed the immunobiotic diets were slightly higher than the control valued at 1 and 3 d of age, with the exception of spleen weight in the L. gasseri JCM1131(T) at 3 d of age, the bursa of Fabricius weight in the L. gasseri JCM1131(T) at 1 and 3 d of age, and bursa of Fabricius weight in the L. gasseri TL2919 group at 1 d of age. There were no significant differences in body and liver weights among the treatments. When chicks were fed the L. jensenii TL2937- or L. gasseri TL2919-supplemented diets, expression of T cell-related mRNA [cluster of differentiation 3 (CD3), interleukin-2 (IL-2), and interferon-gamma (IFN-gamma)] in the foregut was significantly higher than that of control chicks at 3 or 7 d of age. Expression levels of toll-like receptor (TLR) mRNA tended to increase in the foregut of chicks fed the immunobiotic diets, except for the L. delbrueckii ssp. bulgaricus NIAIB6, compared with expression levels in control chicks. The Bu-1 mRNA expression levels in the bursa of Fabricius were not affected by the supplementations with immunobiotic lactic acid bacteria. These results show that immunobiotics, particularly L. gasseri TL2919, might be useful as immunomodulators to stimulate the gut-associated immune system in neonatal chicks, and thereby protect them from disease without decreasing growth performance as a possible substitution of antibiotics.

Crustacea: Branchiura

African Journals Online (AJOL)

1993-03-25

Mar 25, 1993 ... terminology describing the various parts of the digestive tract 01 branchiurans is discussed. .... suboesophageaJ ganglion; 55 S-shaped duct; TG thoracic ganglia; YS coils of .... All sections are transverse except C and J which.

Functional adaptation of crustacean exoskeletal elements through structural and compositional diversity: a combined experimental and theoretical study

Czech Academy of Sciences Publication Activity Database

Fabritius, H.; Ziegler, A.; Friák, Martin; Nikolov, S.; Huber, J.; Seidl, B.H.M.; Ruangchai, S.; Alagboso, F.; Karsten, S.; Lu, J.; Janus, A.M.; Petrov, M.; Zhu, LF.; Hemzalová, P.; Hild, S.; Raabe, D.; Neugebauer, J.

2016-01-01

Roč. 11, č. 5 (2016), č. článku Art. Number 055006. ISSN 1748-3182 Institutional support: RVO:68081723 Keywords : Crustacea * cuticle * Decapoda * Isopoda * amorphous calcium carbonate * amorphous calcium phosphate * multi-scale modeling Subject RIV: BO - Biophysics Impact factor: 2.939, year: 2016

Seasonal abundance, ecology, reproductive biology, and biochemical composition of Mesopodopsis orientalis W.M. Tattersall (Mysidacea) from a tropical estuary (Cochin Backwater) in India

Digital Repository Service at National Institute of Oceanography (India)

Biju, A.; Gireesh, R.; Jayalakshmi, K.J.; Haridevi, C.K.; Panampunnayil, S.U.

respiratorio de los componentes bioquimicos. In: Actina equina L. Actas do IVº Simpósio Ibérico de estudos do Benthos Marinho, 321-332. PANAMPUNNAYIL, S. U., 1999. Studies on Mysidaceae (Crustacea) of the Indian Ocean with reference to Indian waters. pp. 1...

19 CFR 12.26 - Importations of wild animals, fish, amphibians, reptiles, mollusks, and crustaceans; prohibited...

Science.gov (United States)

2010-04-01

..., reptiles, mollusks, and crustaceans; prohibited and endangered and threatened species; designated ports of..., Birds, and Insects § 12.26 Importations of wild animals, fish, amphibians, reptiles, mollusks, and... crustacea), amphibians, reptiles, or the offspring or eggs of any of the foregoing which the Secretary of...

Development of a microsatellite primer set to investigate the genetic ...

Indian Academy of Sciences (India)

Development of a microsatellite primer set to investigate the genetic population structure of Armadillidium nasatum (Crustacea, Oniscidea). Séverine Masson, Cédric Faivre, Isabelle Giraud, Catherine Souty-Grosset, Richard Cordaux, Carine Delaunay,. Didier Bouchon and Nicolas Bech. J. Genet. 93, 545-549. Table 1.

Un nouveau Microparasellidae (Crustacé Isopode) du Haut-Atlas; aspects phylogénétiques et biogéographiques

NARCIS (Netherlands)

Yacoubi-Khebiza, M.; Boulanouar, M.; Coineau, N.

1997-01-01

The interstitial stygobiotic isopods of the genus Microcharon (Crustacea) are diversified in Morocco. A new species, M. ourikensis, is described. The new species shows some original characters for this genus: large size, strong elongation in the first male pleopod exopodal inner lobe, 5-dentate

A novel function of red pigment-concentrating hormone in crustaceans: Porcellio scaber (Isopoda) as a model species

Czech Academy of Sciences Publication Activity Database

Zralá, Jana; Kodrík, Dalibor; Zahradníčková, Helena; Zemek, Rostislav; Socha, Radomír

2010-01-01

Roč. 166, č. 2 (2010), s. 330-336 ISSN 0016-6480 R&D Projects: GA ČR GA522/07/0788 Institutional research plan: CEZ:AV0Z50070508 Keywords : crustacea * carbohydrates * metabolism Subject RIV: ED - Physiology Impact factor: 3.108, year: 2010

New Coleoptera records from New Brunswick, Canada: Cerambycidae.

Science.gov (United States)

Webster, Reginald P; Sweeney, Jon D; Demerchant, Ian; Silk, Peter J; Mayo, Peter

2012-01-01

Five species of Cerambycidae, Acmaeops discoideus (Haldeman), Anelaphus villosus (Fabricius), Phymatodes species (CNC sp. n. #1), Sarosesthes fulminans (Fabricius), and Urgleptus signatus (LeConte) are newly recorded for New Brunswick, Canada. All but Acmaeops villosus are new to the Maritime provinces. Phymatodes testaceus (Linnaeus) is removed from the faunal list of the province as a result of mislabeled specimens, records of Phymatodes maculicollis LeConte are presented confirming the presence of this species in New Brunswick, and the first recent records ofNeospondylis upiformis (Mannerheim) are presented. Additional records are given for the recently recorded Phymatodes aereus (Newman), indicating a wider distribution in the province. Collection data, habitat data, and distribution maps are presented for each species.

African Zoology - Vol 52, No 3-4 (2017)

African Journals Online (AJOL)

Redescription and molecular characterisation of the fish parasitic isopod Norileca indica (Milne Edwards, 1840) (Crustacea: Isopoda: Cymothoidae) with a key to the genus · EMAIL FULL TEXT EMAIL FULL TEXT ... The rediscovery of a lost frog: Arthroleptis troglodytes Poynton, 1963 · EMAIL FULL TEXT EMAIL FULL TEXT

Thirty-ninth annual report of the director, January-December 1985

International Nuclear Information System (INIS)

1986-01-01

The Fishing Research Institute did investigations on canned fish, canned pet food, crustacea, molluscs, salted-, dried-, smoked-, fresh-, and frozen fish, as well as silage, fish meals and fish oils. Gamma radiation as a method of heat treatment for the sterilisation of salt II, was also discussed

The association between invertebrates and macrophytes in a ...

African Journals Online (AJOL)

The invertebrate fauna associated with aquatic macrophytes in the littoral of Lake Kariba was studied over a three-month period in 2002. Animals from seven classes — Hirudinea, Oligochaeta, Turbellaria, Insecta, Crustacea, Bivalvia and Gastropoda — were collected. Two hirudineans, Placobdella sp. and Haemopsis sp., ...

Taxa Composition, Abundance, Distribution And Diversity Of The ...

African Journals Online (AJOL)

Forty-eight genera of plankton were recorded; nine of Cyanophyceae, thirteen each of Chlorophyceae and Bacillariophyceae, seven of Protozoa and three each of Rotifera and Crustacea. Members of Cyanophyceae dominated the assemblage accounting for 91.77% of the total plankton abundance. All the major plankton ...

Anchialine fauna of the Corona lava tunnel (Lanzarote,Canary Islands): diversity, endemism and distribution

DEFF Research Database (Denmark)

Martínez, Alexandro; Palmero, A M; Brito, M C

2009-01-01

A checklist of 77 taxa recorded from the anchialine sections of the Corona lava tube is provided, including information on habitats, faunal distribution within the cave, and main references. Of the nine major groups recorded, Crustacea shows the highest diversity with 31 species and the highest d...

Standard Guide for Irradiation of Finfish and Aquatic Invertebrates Used as Food to Control Pathogens and Spoilage Microorganisms

CERN Document Server

American Society for Testing and Materials. Philadelphia

2009-01-01

1.1 This guide outlines procedures and operations for the irradiation of raw, untreated, fresh (chilled), or frozen finfish and aquatic invertebrates, while ensuring that the irradiated product is safe and wholesome. 1.1.1 Aquatic invertebrates include molluscs, crustacea, echinoderms, etc. 1.1.1.1 Molluscs include bivalve shellfish, such as clams, mussels, and oysters; snails; and cephalopods, such as squid and octopus. 1.1.1.2 Crustacea include shellfish such as shrimp, lobster, crabs, prawns and crayfish. 1.1.1.3 Echinoderms include sea urchins and sea cucumbers. 1.2 This guide covers absorbed doses used to reduce the microbial and parasite populations in aquatic invertebrates and finfish. Such doses typically are below 10 kGy (1). 1.3 The use of reduced-oxygen packaging (vacuum or modified atmosphere, and including products packed in oil) with irradiated, raw product is not covered by this guide. The anaerobic environment created by reduced-oxygen packaging provides the potential for outgrowth o...

40 CFR 180.950 - Tolerance exemptions for minimal risk active and inert ingredients.

Science.gov (United States)

2010-07-01

...) Both the raw and processed forms of peanuts, tree nuts, milk, soybeans, eggs, fish, crustacea, and... is an animal feed composed of dried animal fat and protein that has been sterilized. Other than meat.... The term commonly consumed food commodities shall only apply to food commodities (whether a raw...

Life and work of Dr. Johannes Govertus de Man (1850-1930)

NARCIS (Netherlands)

Karssen, G.

2006-01-01

This book describes the life and work of Dr. Johannes Govertus de Man (1850-1930), a remarkable Dutch invertebrate zoologist. J.G. de Man worked on the systematics of both the Crustacea, in particular on Decapoda (i.e. crabs, crayfish, lobsters and shrimps), and the microscopically Nematoda or

New observations on the crustacean fauna of Europa Island ...

African Journals Online (AJOL)

The Crustacea Decapoda of Europa Island have been inventoried during the BIORECIE fieldwork conducted from 7-12 November 2011. Previous records for Europa Island have been also compiled and an updated documented checklist of the species is proposed. In total, 175 decapods are reported for Europa Island, ...

The larval development and population dynamics of Derocheilocaris ...

African Journals Online (AJOL)

Seven larval stages of Derocheilocaris algoensis have been described and appear to be identical with those of D. typica from North America. This stresses the remarkable conservativeness of this subclass of Crustacea. The population biology of D. algoensis has been studied over 16 months and reproduction has been ...

A new species of Cacosternum (Amphibia: Anura; Ranidae) from Natal

African Journals Online (AJOL)

1987-03-29

Mar 29, 1987 ... KENSLEY, B. 1972. Shrimps and prawns of southern. Africa. Trustees of the S.A. Museum, Cape Town. KENSLEY, B. 1981. On the zoogeography of southern. African decapod Crustacea, with a distributional .... capense Hewitt, 1925; and C. JeJeupi Laurent, 1950. The frog here described undoubtedly ...

New Coleoptera records from New Brunswick, Canada: Cerambycidae

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Reginald Webster

2012-04-01

Full Text Available Five species of Cerambycidae, Acmaeops discoideus (Haldeman, Anelaphus villosus (Fabricius, Phymatodes species (CNC sp. n. #1, Sarosesthes fulminans (Fabricius, and Urgleptus signatus (LeConte are newly recorded for New Brunswick, Canada. All but A. villosus are new to the Maritime provinces. Phymatodes testaceus (Linnaeus is removed from the faunal list of the province as a result of mislabeled specimens, records of Phymatodes maculicollis LeConte are presented confirming the presence of this species in New Brunswick, and the first recent records of Neospondylis upiformis (Mannerheim are presented. Additional records are given for the recently recorded Phymatodes aereus (Newman, indicating a wider distribution in the province. Collection data, habitat data, and distribution maps are presented for each species.

Phenoloxidase and melanization test for mango seed weevil

International Nuclear Information System (INIS)

Heather, N.W.

1999-01-01

This project was initiated to determine whether the phenoloxidase test successfully developed for fruit flies would be applicable to mango seed weevil, Sternochetus mangiferae (Fabricius). Mango seed weevil represents a quarantine impediment to the entry of mangoes to mainland USA and some other countries. It is not a destructive pest and rarely causes fruit damage even in late maturing varieties in which adults can emerge from ripe fruit. The main problem with the weevils come from nursery propagators who are concerned about possible effects on germination. It is questionable whether this is adequate justification for the level of quarantine importance with which this pest is currently regarded. It should not be confused with the mango pulp weevil Sternochetus frigidus Fabricius which does damage all infested fruit. (author)

A checklist of butterflies of Dakshina Kannada District, Karnataka, India

Directory of Open Access Journals (Sweden)

Deepak Naik

2016-10-01

Full Text Available In a preliminary study on the butterflies of Dakshina Kannada District, located in the southwestern part of the Karnataka along the Western Ghats in Karnataka State in India, a total of 172 species of butterflies belonging to 117 genera, from six families was prepared by visiting various landscapes during the period September 2012 to December 2015.  Of the various species recorded, Papilio clytia (Linnaeus, Papilio lio medon (Moore, Pachlio ptahector (Linnaeus, Castalius rosimon (Fabricius, Acytolepis puspa (Horsefield, Lethe europa (Fabricius, Neptis jumbah (Moore, Dophlae velina (Stoll, Hypolimnas misippus (Linnaeus and Doleschallia bisaltide (Cramer comes under the Schedule I of the Indian Wildlife Protection Act 1972.  The present study provides the baseline data of butterfly species of Dakshina Kannada. 

Reevaluation of the type species and redescription of five species of Edessa (Heteroptera: Pentatomidae: Edessinae).

Science.gov (United States)

Silva, Valeria Juliete DA; Rider, David A; Fernandes, Jose Antonio Marin

2017-11-13

In accordance with the rules in the International Code of Zoological Nomenclature, the type species for the genus Edessa Fabricius, 1803 is now recognized to be Cimex antilope Fabricius, 1798 rather than the previously recognized Cimex cervus Fabricius, 1787. Edessa antilope is redescribed, as well as the following four species that have in the past been related or compared to E. antilope: E. arabs (Linnaeus, 1758) from French Guiana, Costa Rica and Panama (new record), E. helix Erichson, 1848 from Costa Rica, Panama, Venezuela, Suriname (new record), Guyana, Brazil (new record), Bolivia (new record) and Argentina (new record), E. ibex Breddin, 1903 from Costa Rica, Panama (new record), Ecuador, Brazil (new record), Peru and Bolivia (new record), and E. taurina Stål, 1862 from Mexico, Guatemala, Belize (new record), Honduras (new record). The distribution of Edessa antilope is expanded to Venezuela. The female of E. antilope and the male of E. taurina are described for the first time. Edessa antilope is removed from the synonymy of E. arabs and reinstated as valid species; additionally, E. costalis Stål, 1872 is removed from the synonym of E. helix and is placed as a junior synonym of E. antilope. Edessa saiga Breddin, 1903 is considered a junior synonym of E. ibex. Lectotypes are designated for all species. A key is provided for the identification of the species.

Author Details

African Journals Online (AJOL)

... un nouvel ennemi naturel Pour le controle de megalurothrips sjostedti (trybom) ... Perceptions paysannes et protection de l'environnement : gestion integree ... la dynamique des populations de maruca vitrata fabricius en culture du niebe, ...

First record of Ligia oceanica (Linnaeus, 1767) (Isopoda: Ligiidae) in the Canary Islands

OpenAIRE

Ramírez, Rubén; Riera, Rodrigo

2013-01-01

This study presents the first record of L. oceanica in the Canary Islands. Additionally, body features between L. oceanica and Ligia italica Fabricius, 1798, the other sea-slater inhabiting the Archipelago, were compared.

Revisão das espécies brasileiras do gênero Exoplectra Chevrolat (Coleoptera, Coccinellidae, Exoplectrinae, Exoplectrini A revision of Brazilian species of the genus Exoplectra Chevrolat (Coleoptera, Coccinellidae, Exoplectrinae, Exoplectrini

Directory of Open Access Journals (Sweden)

Ana V. Costa

2008-09-01

Full Text Available As espécies brasileiras de Exoplectra Chevrolat, 1844 são revisadas com base no estudo de caracteres morfológicos do exoesqueleto e genitália. Dentre as 37 espécies do gênero foram estudadas 14 brasileiras, incluindo as três propostas como novas. Foi examinado o material-tipo de nove espécies. São designados os lectótipos de E. angustifrons Weise, 1895, E. calcarata (Germar, 1824, E. coccinea (Fabricius, 1801 e E. miniata (Germar, 1824. Exoplectra companyoi Mulsant, 1850 é revalidada; E. aenea (Fabricius, 1801, E. bernardinensis Brèthes, 1925, E. impotens Mulsant, 1850, E. luteicornis Mulsant, 1850 e E. irregularis (Crotch, 1874 são provisoriamente removidas do gênero. São propostas duas novas espécies do Brasil: E. columba sp. nov., do Paraná e E. bimaculata sp. nov., do Amamzonas. É apresentada chave dicotômica para as espécies, fotos e desenhos das principais estruturas utilizadas para identificação.The Brazilian species of Exoplectra Chevrolat, 1844, based on the morphological analysis of external characters and genitalia, are revised. Among the 37 species in the genera, 14 Brazilian species were analysed, including three new species. It was studied the type material of nine of them. The lectotypes of E. angustifrons Weise, 1895, E. calcarata (Germar, 1824, E. coccinea (Fabricius, 1801 and E. miniata (Germar, 1824 are designated. Exoplectra companyoi Mulsant, 1850 is revalidated; E. aenea (Fabricius, 1801, E. bernardinensis Brèthes, 1925, E. impotens Mulsant, 1850, E. luteicornis Mulsant, 1850 and E. irregularis (Crotch, 1874 are provisionally removed from the genus. Two new species from Brazil are proposed: E. columba sp. nov., from Paraná and E. bimaculata sp. nov., from Amazonas. Dicotomic key for species is presented as well as pictures and illustrations for the main structures used in the identification.

Shallow-water Mysidacea from the Lesser Antilles and other Caribbean regions

NARCIS (Netherlands)

Brattegard, Torleiv

1975-01-01

This report is the seventh in a series of papers dealing with Mysidacea (Crustacea) from shallow water in the tropical and warm-temperate areas of the western Atlantic (BRATTEGARD 1969, 1970a, 1970b, 1973, 1974a, 1974b). Five of these are dealing with material collected by the author in southern

Author Details

African Journals Online (AJOL)

Lozano, IJ. Vol 18 (1997) - Articles Life history of plesionika edwardsi (crustacea, decapoda, Pandalidae) around the Canary Islands, Eastern central Atlantic Abstract PDF. ISSN: 1814-2338. AJOL African Journals Online. HOW TO USE AJOL... for Researchers · for Librarians · for Authors · FAQ's · More about AJOL · AJOL's ...

U.S. Directory of Marine Scientists 1982

Science.gov (United States)

1982-01-01

Processes & Engineering. MACLEAN, SHARON A, Fishery Biologist. FINKELSTEIN, KENNETH, Coastal Geologist. Zooplankton; Crustacea. Sedimentology; Stratigraphy... SHARON T, Aszt Scientist. Pasadena, CA 91109 Taxonomy and Systematics; Zooplankton. HOWEY, TERRY W, Scientist. CHELTON, DUDLEY BOYD, JR, Senior...Oceanography. Monterey, CA 93940 Optics; Descriptive Physical Oceanography, Instrumentation Engineering. BOURKE , ROBERT H, Assoc Professor of VON SCHWIND

African Research Review - Vol 5, No 4 (2011)

African Journals Online (AJOL)

Prerequisite for Sustainable Agricultural Development in the Sub-Saharan Africa · EMAIL ... EMAIL FREE FULL TEXT EMAIL FREE FULL TEXT ... the Bean Bruchid, Callosobruchus Maculatus (Fabricius) on Different Legume Seeds on Sale in ...

Occurrence of oriental flies associated with indoor and outdoor human remains in the tropical climate of north Malaysia.

Science.gov (United States)

Kumara, T K; Disney, R H L; Abu Hassan, A; Flores, Micah; Hwa, Tan Siew; Mohamed, Zulqarnain; CheSalmah, M R; Bhupinder, S

2012-06-01

Flies attracted to human remains during death investigations were surveyed in north Peninsular Malaysia. Six families, eight genera, and 16 species were identified from human remains, with the greatest fly diversity occurring on remains recovered indoors. The total relative frequency of species was led by Chrysomya megacephala (Fabricius, 1794) (46%), followed by Chrysomya rufifacies (Macquart, 1842) (22%), Sarcophaga (Liopygia) ruficornis (Fabricius, 1974) (5%), Sarcophaga spp. (4%), Synthesiomyia nudiseta Wulp, 1883 (6%), Megaselia spp. (3%), Megaselia scalaris (Loew, 1866), (2%), Megaselia spiracularis Schmitz, 1938 (2%), and Chrysomya villeneuvi Patton, 1922 (2%). Hemipyrellia tagaliana (Bigot, 1877), Desmometopa sp., Megaselia curtineura (Brues, 1909), Hemipyrellia ligurriens Wiedemann 1830, Ophyra sp., Sarcophaga princeps Wiedemann 1830, Piophila casei (Linnaeus, 1758), and unidentified pupae each represented 1%, respectively. © 2012 The Society for Vector Ecology.

Notas sobre la taxonomía y distribución de Passalidae (insecta: coleoptera en Colombia y descripción de una nueva especie Notas sobre la taxonomía y distribución de Passalidae (insecta: coleoptera en Colombia y descripción de una nueva especie

Directory of Open Access Journals (Sweden)

Reyes Castillo Pedro

1991-12-01

Full Text Available This investigation presents some taxonomical aspects of Passalidae with a summary of the genera and reported species in Colombia. The distribution of Passalus Fabricius and Veturius is anoled and some ecological and biogeographical aspects are given. Finally Passalus chingaencis is described from the andean forest of the Eastern Andes of Colombia. Se comentan aspectos de la taxonomía de Passalidae, con una reseña de los géneros presentes, especies registradas y distribución de los géneros Passalus Fabricius y Veturius Kaup en Colombia. Se destacan algunos aspectos de carácter biogeográfico y ecológico y se describe Passalus chingaencis, una especie montana con distribución en el bosque altoandino de la Cordillera Oriental.

Internal current generation in respiration chambers

Science.gov (United States)

Saborowski, R.; Buchholz, F.

1998-06-01

A technical device generating a constant and directed current within a sealed respiration chamber is described. It does not involve any external pumps or tubing. This system is easy to handle, and improved the maintenance of rheotactic pelagic species like the Northern krill ( Meganyctiphanes norvegica, Crustacea) or small fishes ( Gasterosteus aculeatus) under experimental conditions.

Ecology of benthic production in the coastal zone of Goa

Digital Repository Service at National Institute of Oceanography (India)

Harkantra, S.N.; Parulekar, A.H.

was comprised of Polychaeta (58.5%), Mollusca (18.1%), Crustacea (9.1%), Echinodermata (7.1%) and other minor taxa (7.3%) Population count and biomass varied from 25 to 7823 m-2 (X- = 1256 m-2) and 0.2 to 2251.25 g m-2 (X- = 67.07 g m-2) respectively The higher...

Biochemical evaluation of aestivation and starvation in two snail ...

African Journals Online (AJOL)

hope&shola

2010-11-08

Nov 8, 2010 ... ned by drying up of surface water from fresh water bodies either regularly in ... transferases; LDL, low-density lipoprotein; BUN, blood urea nitrogen; UUN ..... white spot syndrome virus infection in penaeus monodon (fabricius).

Natural Diet of Callinectes ornatus Ordway, 1863 (Decapoda, Portunidae in the Itapocoroy Inlet, Penha, SC, Brazil

Directory of Open Access Journals (Sweden)

Joaquim Olinto Branco

2002-03-01

Full Text Available From January to December 1995, 332 individuals of the Callinectes ornatus species were collected from the Itapocoroy inlet in Penha, Sta. Catarina, Brazil to study its natural diet and the seasonal variations of diet. Results showed a diversified trophic spectrum with a generalized dietary strategy comprising the algae, macrophyta, foraminiferida, mollusca, polychaeta, crustacea, echinodermata, Osteichthyes and NIOM (Nonidentified Organic Matter groups.Alimentação natural de Callinectes ornatus Ordway, 1863 (Decapoda, Portunidae na Armação do Itapocoroy, Penha, SC - Brasil. No período de janeiro a dezembro de 1995, foram coletados 332 indivíduos de Callinectes ornatus, procedentes da Armação do Itapocoroy (Penha, SC. Foi estudada a alimentação natural da espécie e as variações sazonais da dieta. Os resultados mostram um espectro trófico diversificado, com estratégia alimentar generalista, sendo Algas, Macrófitas, Foraminiferida, Mollusca, Polychaeta, Crustacea, Echinodermata, Osteichthyes e matéria orgânica não identificada, os grupos que compõem sua dieta.

The decapod red pigment-concentrating hormone (Panbo-RPCH) is the first identified neuropeptide of the order Plecoptera and is interpreted as homoplastic character state.

Science.gov (United States)

Gäde, Gerd; Marco, Heather G

2015-09-15

This paper presents the first neuropeptide structure, identified by mass spectrometry, in two species of Plectoptera (stoneflies) and in one species of the coleopteran family Lycidae. In all three species, the octapeptide Panbo-RPCH (first identified in Pandalus borealis as a red pigment-concentrating hormone: pGlu-Leu-Asn-Phe-Ser-Pro-Gly-Trp amide) is present. A review of the literature available on invertebrate neuropeptides that are identified or predicted from expressed sequence tags, transcriptome shotgun assemblies, and from fully sequenced genomes, show that Panbo-RPCH is found in Malacostraca (Crustacea) and certain hemipteran Heteroptera (Insecta). To date, Panbo-RPCH has not been shown present in non-Malacostracan crustaceans, nor in basal taxa of the Insecta (Archaeognatha, Zygentoma, Ephemeroptera, Odonata). The present data adds to knowledge on the distribution of Panbo-RPCH, and when taking into account the most accepted, current phylogenetics of the Crustacea-Hexapoda relationship, this distribution of Panbo-RPCH in Malacostraca, Plecoptera, some hemipteran Heteroptera and in Coleoptera (Lycidae) can best be explained by homoplasy, implying parallel evolution. Copyright © 2015 Elsevier Inc. All rights reserved.

Integrated pest management for sweetpotato in Eastern Africa

NARCIS (Netherlands)

Smit, N.

1997-01-01

Sweetpotato is an important crop in Eastern Africa. Sweetpotato weevils ( Cylas puncticollis Boheman and C. brunneus Fabricius; Coleoptera: Apionidae) cause damage to roots and vines
throughout the crop's