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| Registros recuperados: 38 | |
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| Allodi,S.; Taffarel,M.. |
| Invertebrate glial cells show a variety of morphologies depending on species and location. They have been classified according to relatively general morphological or functional criteria and also to their location. The present study was carried out to characterize the organization of glial cells and their processes in the zona fasciculata and in the protocerebral tract of the crab Ucides cordatus. We performed routine and cytochemical procedures for electron microscopy analysis. Semithin sections were observed at the light microscope. The Thiéry procedure indicated the presence of carbohydrates, particularly glycogen, in tissue and in cells. To better visualize the axonal ensheathment at the ultrastructural level, we employed a method to enhance the... |
| Tipo: Info:eu-repo/semantics/other |
Palavras-chave: Glial cells; Crustaceans; Electron microscopy; Cytochemistry; Ucides cordatus. |
| Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-879X1999000300013 |
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| Ben Lamine, Y.; Daly Yahia Kefi, O.; Daly Yahia, N.. |
| The Tunis bay is located in the North Estern coast of Tunisia and receives in its Western part flows from Meliane River. Our study aims to describe the composition and the spatiotemporal distribution of planktonic copepods in the bay in order to identify the effect of the Meliane River supplies on the community. A grid of 19 stations was investigated monthly from July 2004 to December 2004 using a 160 μm mesh size plankton net, towed obliquely from the bottom to the surface. The planktonic copepod community was represented by 21 taxa of Calanoida, 4 taxa of Cyclopoida, 3 taxa of Poicilostomatoida and one species of Harpacticoida. The presence of freshwater taxa like Arctodiaptomus salinus, Microcyclops sp and Thermocyclops sp in the coastal stations... |
| Tipo: Journal Contribution |
Palavras-chave: Plankton; Distribution; Crustaceans; Freshwater-seawater interface. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/5317 |
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| Bernadochi,Ligia Coletti; Silvestri,Fausto; Turra,Alexander. |
| The composition and seasonal variation of brachyuran and anomuran species associated with mussel farms were evaluated at Praia da Cocanha, São Paulo between May 2007 and February 2008. Nine mussel ropes were sampled at random in each quarter, and 1,208 organisms were identified, comprising five families and 28 species. The most numerous species was the porcellanid Pachycheles laevidactylus (18.5%), followed by the xanthids Acantholobulus schmitti (16.6%), Hexapanopeus paulensis (11.3%), Panopeus americanus (10.2%), and Menippe nodifrons (8.4%). The exotic crab Charybdis hellerii was recorded throughout the study period. The ecological descriptors, except Pielou evenness index, varied significantly over the time. The highest abundance and diversity of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Associated fauna; Mussel culture; Perna perna; Crustaceans; Community ecology. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000400010 |
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| Bertrand, Jacques; Bodiguel, Xavier; Abarnou, Alain; Reynal, Lionel; Bocquene, Gilles. |
| Chlordecone is a very persistent insecticide used in banana plantations of the French West Indies between 1972 and 1993. Chlordecone residues were found in inland water, in agricultural and freshwater products, and in marine organisms. This pollution has become of great concern in 2007. Therefore, a governmental action Plan was launched to better assess the pollution and to improve the consumer’s protection. Within this plan, 1048 samples from 69 different species of marine fishes and crustaceans were collected all around both the Guadeloupe and the Martinique Islands and analyzed. The results confirm the presence of chlordecone in marine organisms, with highly variable concentrations (from the detection limit to 1000 μg.kg-1). In 17.9 % of the samples,... |
| Tipo: Text |
Palavras-chave: Chlordecone (Kepone); French West Indies; Fishes; Crustaceans; Organochlorinated contaminant; Risk assessment; Pollution management. |
| Ano: 2010 |
URL: http://archimer.ifremer.fr/doc/00014/12511/9361.pdf |
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| Bodin, Nathalie; Abarnou, Alain; Le Guellec, Anne-marie; Loizeau, Veronique; Philippon, Xavier. |
| The contamination and distribution of organ ochlorinated compounds were considered in three crustacean species (edible crab, Cancer pagurus; spider crab, Maja brachydactyla; velvet swimming crab, Necora puber) from five sites along the coasts of Brittany and Normandy (Western and North-Western France). PCBs (16 single congeners), pp'-DDE and HCB were measured in hepatopancreas, gonads and muscle: in all, 175 samples were analysed. The spider crab was the only species found in the five sampling sites, thus enabling comparison between areas. Specimens from Antifer were much more contaminated (Sigma(16)PCBs in hepatopancreas = 2000-4000 ng g(-1) dry weight) than those from other sites (50-1000 ng g(-1) d.w.). Among all the three species, the spider crab... |
| Tipo: Text |
Palavras-chave: Human diet; France; Brittany; Normandy; Crustaceans; Polychlorobiphenyls. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/publication-2594.pdf |
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| Boudour-boucheker, Nesrine; Boulo, Viviane; Charmantier-daures, Mireille; Anger, Klaus; Charmantier, Guy; Lorin-nebel, Catherine. |
| In this comparative study, osmoregulatory mechanisms were analyzed in two closely related species of palaemonid shrimp from Brazil, Macrobrachium pantanalense and Macrobrachium amazonicum. A previous investigation showed that all postembryonic stages of M. pantanalense from inland waters of the Pantanal are able to hyper-osmoregulate in fresh water, while this species was not able to hypo-osmoregulate at high salinities. In M. amazonicum originating from the Amazon estuary, in contrast, all stages are able to hypo-osmoregulate, but only first-stage larvae, late juveniles and adults are able to hyper-osmoregulate in fresh water. The underlying molecular mechanisms of these physiological differences have not been known. We therefore investigated the... |
| Tipo: Text |
Palavras-chave: Salinity; Crustaceans; Branchial chamber; NHE3 transporter; V-type H+-ATPase; Na+/K+-ATPase. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00313/42427/41899.pdf |
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| Coquereau, Laura; Grall, Jacques; Clavier, Jacques; Jolivet, Aurelie; Chauvaud, Laurent. |
| Although many studies have investigated the benthic environment of temperate marine waters, little is known about the acoustic behaviour of the organisms in these habitats, particularly crustaceans. This study focused on the acoustic behaviour of large crustaceans in NE Atlantic coastal regions. A total of 11 crustacean species were recorded in tank-based experiments to identify sound-producing species and the behaviours associated with their sounds as well as to quantitatively characterise and compare the sounds. A total of 34 sounds were associated with behaviours such as moving, feeding, mandible rubbing, swimming, species-specific behaviour and other unidentified behaviours. The sounds included single pulse and pulse train signals that were distributed... |
| Tipo: Text |
Palavras-chave: Acoustic behaviour; Sound library; Crustaceans; Crabs; Snapping shrimps. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00616/72859/72983.pdf |
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| De los Rios, Patricio. |
| Los ensambles zooplanctónicos en cuerpos de agua de la zona centro y sur de la Patagonia chilena se caracterizan por su alto endemismo y un relativo bajo número de especies lo cual se debería principalmente a la oligotrofía y niveles de conductividad de estos ambientes. El objetivo del presente trabajo consistió en analizar información publicada y sin publicar sobre crustáceos zooplanctónicos en lagos y lagunas de la zona central y sur de la Patagonia (44 - 53g S). A estos datos se les estimó la razón especies / género, y se aplicó un modelo nulo basado en co-ocurrencia de especies mediante una matriz de presencia y ausencia de especies, con la intención de determinar ausencia de factores reguladores de las asociaciones de especies. Dentro de este mismo... |
| Tipo: Journal Contribution |
Palavras-chave: Zooplankton; Assemblages; Lakes; Ponds; Crustaceans. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/4161 |
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| El Gtari, M.; Bouriga, N.; Medini-Bouaziz, L.; Hamaied, S.; Charfi-Cheikhrouha, F.. |
| Dans le but de mettre en évidence l’impact des modifications paysagères et la mécanisation des plages sur la faune carcinologique semi-terrestre, une campagne de terrain a été effectuée en février 2004 au niveau de deux sites de la province d’Alicante (Sud-Est de l’Espagne). La plage de Santa Pola, partiellement épargnée de l’accès des machines de nettoyage et celle d’El Pinet où la mécanisation est très intense. Les résultats obtenus ont montré que, malgré une faible densité des arthropodes récoltés, la biodiversité de la plage de Santa Pola est plus élevée que celle de la plage d’EL Pinet caractérisée par la quasi absence des amphipodes semi-terrestres. Seule l’espèce Tylos europaeus est commune dans les 2 sites. Ce résultat s’expliquerait par l’impact... |
| Tipo: Journal Contribution |
Palavras-chave: Biodiversity; Sandy beaches; Crustaceans; Landscape; Amphipoda. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/5314 |
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| Fuentes Reines, Juan M.; Zoppi de Roa, Evelyn; Morón, Eliana; Gámez, Dáninso; López, Carlos. |
| Se analizaron 108 muestras recolectadas entre marzo y noviembre de 2009 provenientes de macrófitas y aguas abiertas de la costa oriental de la Ciénaga Grande de Santa Marta, adyacente a la desembocadura del río Sevilla, departamento del Magdalena. El mayor número de especies se registró en la zona de macrófitas. Este es el primer registro acerca de la existencia de cladóceros en esta región. Se encontró un total de 36 especies, de las cuales, ocho (Guernella raphaelis, Ilyocryptus plumosus, Moina eugeniae, Kurzia polyspina, K. media, Oxyruella longicaudis y O. tenuicaudis) son nuevos registros para Colombia. Además se hace una breve descripción de todas las especies y su distribución geográfica. |
| Tipo: Journal Contribution |
Palavras-chave: Crustaceans; Species diversity; New records. |
| Ano: 2012 |
URL: http://hdl.handle.net/1834/4435 |
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| Gardner, Ian A.; Whittington, Richard J.; Caraguel, Charles G. B.; Hick, Paul; Moody, Nicholas J. G.; Corbeil, Serge; Garver, Kyle A.; Warg, Janet V.; Arzul, Isabelle; Purcell, Maureen K.; Crane, Mark St J.; Waltzek, Thomas B.; Olesen, Niels J.; Gallardo Lagno, Alicia. |
| Complete and transparent reporting of key elements of diagnostic accuracy studies for infectious diseases in cultured and wild aquatic animals benefits end-users of these tests, enabling the rational design of surveillance programs, the assessment of test results from clinical cases and comparisons of diagnostic test performance. Based on deficiencies in the Standards for Reporting of Diagnostic Accuracy (STARD) guidelines identified in a prior finfish study (Gardner et al. 2014), we adapted the Standards for Reporting of Animal Diagnostic Accuracy Studies—paratuberculosis (STRADAS-paraTB) checklist of 25 reporting items to increase their relevance to finfish, amphibians, molluscs, and crustaceans and provided examples and explanations for each item. The... |
| Tipo: Text |
Palavras-chave: Reporting standards; Sensitivity; Specificity; Finfish; Amphibians; Molluscs; Crustaceans; STRADAS-paraTB; Diagnostic validation. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00334/44505/44191.pdf |
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| Gonçalves, P.M.B.; Pereira, M.A.M.. |
| The effects of human trampling on the population parameters of the soldier crab Dotilla fenestrata at Praia da Costa do Sol, Maputo were studied in two areas subjected to two different levels of human disturbance: (1) a low disturbance area; and (2) a high disturbance area. Sampling was carried out 1 day before and 1 day after disturbance took place and crab abundance and biomass data were compared between the two periods at each area. No significant differences (P > 0.05) were found between abundance and biomass values before and after the disturbance. These results suggest that human trampling has an insignificant effect on D. fenestrata and that behavioral and habitat structure aspects might play more important roles on the population ecology of the... |
| Tipo: Conference Material |
Palavras-chave: Crustaceans. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/441 |
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| Gonzalez, E.; Rubio, M.; Laria, R.; Silveira, R.; Artiles, A.. |
| Uno de los principales problemas del cultivo del camarón blanco del Pacífico, Litopeneaeus vannamei, es la susceptibilidad de esta especie a diversas enfermedades virales, que pueden conducir a grandes mortalidades y/o pérdidas económicas. En este trabajo se reportan los resultados obtenidos en la ejecución de los muestreos periódicos y chequeos de cuarentenas correspondientes al programa de vigilancia, desde la primera introducción de esta especie en Cuba en 2003 hasta el 2009. Para ello se emplearon técnicas de análisis en fresco, histológicas y de biología molecular. En este período, no se detectó ninguno de los virus de crustáceos que son de declaración obligatoria por la Organización Mundial de la Salud Animal (OIE, de sus siglas en francés): el virus... |
| Tipo: Journal Contribution |
Palavras-chave: Viruses; Crustaceans. |
| Ano: 2011 |
URL: http://hdl.handle.net/1834/4141 |
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| Registros recuperados: 38 | |
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