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| Registros recuperados: 14 | |
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| Soletchnik, Patrick; Le Moine, Olivier; Faury, Nicole; Guilpain, Patrice; Geairon, Philippe; Razet, Daniel; Seugnet, Jean-luc; Robert, Stephane; Ropert, Michel; Simonne, Charlotte; Hugonnet, Virginie; Moal, Jeanne; Pouvreau, Stephane; Huvet, Arnaud; Samain, Jean-francois; Lambert, Christophe; Soudant, Philippe; Frouel, Stephane; Choquet, Gwenaelle; Delaporte, Maryse; Paillard, Christine. |
| Four laboratories are involved in this multidisciplinary study: the Conchological Laboratory of Normandie (LCN), the Invertebrates Physiology Laboratory (LPI), the Université Bretagne Occidentale (LEMAR IHP) and the Conchological Laboratory of Poitou-Charentes (LCPC). The part of the study which is presented here (thematics "Coastal ecology") was produced in collaboration with the LCN. The data on the Bay of Veys was collected by Michel Ropert. This study aims at observing the "sites" effect on mortality and on the general biology of the animal, as well as measuring some environmental elements (e.g. water temperature, etc.). The geographical sites are Gefosse in the Bay of Veys (East Cotentin) and the Ronce bank in the south of the Marennes Oléron Bay. The... |
| Tipo: Text |
Palavras-chave: Immunologie; Physiologie; Paramètres environnementaux; Croissance; Ecologie côtière; Baies des Veys Cotentin; Ronce Charente Maritime; Comparaison sites; Reproduction; Mortalités; Crassostrea gigas; Huîtres. |
| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/2002/acte-3405.pdf |
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| Delaporte, Maryse; Soudant, Philippe; Moal, Jeanne; Lambert, Christophe; Quere, Claudie; Miner, Philippe; Choquet, Gwenaelle; Paillard, Christine; Samain, Jean-francois. |
| The impact of diets upon the fatty acid composition of haemocyte polar lipids and consequently upon immune parameters has been tested in the oyster Crassostrea gigas and the clam Ruditapes philippinarum. Oysters and clams were fed each of three cultured algae: Chaetoceros calcitrans, which is rich in 20:5(n-3) and 20:4(n-6) and poor in 22:6(n-3) fatty acids; T-Iso (Isochrysis sp.), which is rich in 22:6(n-3) and deficient in 20:5(n-3) and 20:4(n-6); and Tetraselmis suecica, which is deficient in 22:6(n-3) and contains only small amounts of 20:5(n-3) and 20:4(n-6). Fatty acid composition of haemocyte polar lipids was greatly affected by the diet. Oysters and clams fed C. calcitrans maintained a higher proportion of 20:5(n-3) and 20:4(n-6) in their haemocyte... |
| Tipo: Text |
Palavras-chave: Ruditapes philippinarum; Crassostrea gigas; Polyunsaturated fatty acids; Phagocytosis; Oxidative activity; Haemocyte membrane; Nutrition; Immunology; Bivalve; Immunologie; Bivalve; Ruditapes philippinarum; Crassostrea gigas; Acides gras poly insatures; Phagocytose; Flambee respiratoire; Membrane; Hemocyte; Nutrition. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/2003/publication-354.pdf |
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| Delaporte, Maryse. |
| Des études ont déjà montré que la composition lipidique des micro-algues utilisées dans les écloseries et nurseries avait des répercussions sur la croissance, le développement et la survie des bivalves. L'objectif de la présente étude est de déterminer l'influence de l'alimentation sur la composition membranaire des hémocytes et sur les mécanismes de défense des bivalves. Des huîtres, Crassostrea gigas, et des palourdes, Ruditapes philippinarum, ont été nourries avec trois algues: Chaetoceros calcitrans déficiente en 22:6(n-3), lsochrysis galballa déficiente en 20:5(n-3) et 20:4(n-6), Tetraselmis suecica déficiente en 22:6(n-3), 20:5(n- 3) et 20:4(n-6). Dans notre étude, les animaux nourris avec T. suecica présentent le plus faible indice de condition. Les... |
| Tipo: Text |
Palavras-chave: Acide gras; Immunologie; Hémocytes; Composition membranaire; Phagoyctyose; Activité métabolique. |
| Ano: 2001 |
URL: http://archimer.ifremer.fr/doc/00439/55108/56560.pdf |
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| De Decker, Sophie. |
| The bacteria of the Vibrio genus are one of the most abundant groups in the aquatic ecosystems. Two species of vibrios, Vibrio splendidus and V. Aestuarianus, have been associated, in some cases, to mortality in flat oyster Crassostrea gigas farms, most of the time during the summer period. This doctoral thesis studies the Vibrio-host interaction and their modulations according to the host's pathogenic virulence and its genetic, physiologic and immunitary parameters. These factors will be characterised by in vitro and in vivo approaches (experimental infection). The characterization of contrasted genetic families according to their sensitivity to these vibrios will enable the implementation of new improvement strategies in oyster farms (prophylactic... |
| Tipo: Text |
Palavras-chave: Immunologie; Physiologie; Paramètres génétiques; Virulence; Oyster; Crassostrea gigas; Pathogène; Vibrio. |
| Ano: 2007 |
URL: http://archimer.ifremer.fr/doc/2007/acte-3431.pdf |
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| Brunetiere, Claire. |
| Bien que l'impact des pathologies virales en aquaculture soit important, la prévention et les traitements antiviraux sont peu maîtrisés. De plus, les connaissances sur l'immunité des invertébrés marins face aux infections virales sont peu nombreuses. L'immunité non spécifique, constituant la première barrière de défense chez les vertébrés, représente le seul mécanisme de l'immunité décrit à ce jour chez les bivalves marins. De plus, les travaux ayant pour objet l'étude des mécanismes développés par les bivalves pour se défendre vis-à-vis de ces agents infectieux sont peu développés. Il apparaît donc important de comprendre quel(s) mécanismes(s) de défense peut(vent) être mis en place chez les huîtres adultes, C. gigas, pour limiter et /ou contrôler les... |
| Tipo: Text |
Palavras-chave: Huître creuse; Crassostrea gigas; Immunologie; Biologie cellulaire; Hémocytes. |
| Ano: 2004 |
URL: http://archimer.ifremer.fr/doc/00034/14475/11773.pdf |
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| Registros recuperados: 14 | |
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