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| Soletchnik, Patrick; Le Moine, Olivier; Faury, Nicole; Guilpain, Patrice; Geairon, Philippe; Razet, Daniel; Madec, Patrick; Robert, Stephane; Taillade, Sylvie; Doner, Anne. |
| This report presents results obtained by the LCPC in coastal Ecology. The contributions of the LCPC, as partner associated with the genetic studies, do not appear in this report. This report is divided in 5 parts of differing importance : • Task 2.2.3. A "multi-disciplinary study of the DYNAmics of estival mortalities of Crassostrea gigas in the Marenne - Oléron Basin (Dynamo-2002)"; study developed and directed by the LCPC after the “plat-table” C. gigas mortality model in the Marennes- Oleron Basin. • Task 2.3 . "Influence of autumn and winter conditions on the maturation of parents (phase 1) and on the survival of their offspring (phase 2) (Gegen). Action directed by the LCPC. • Task 2.2.1. " Dynamics of mortality, reproduction and spawning.... |
| Tipo: Text |
Palavras-chave: MOREST; Crassostrea gigas; Mortalité; Ecologie côtière; MOREST; Crassostrea gigas; Mortality; Coastal Ecology. |
| Ano: 2003 |
URL: http://archimer.ifremer.fr/doc/00164/27549/25714.pdf |
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| Gagnaire, Beatrice; Soletchnik, Patrick; Madec, Patrick; Geairon, Philippe; Le Moine, Olivier; Renault, Tristan. |
| Summer mortality is an important economic concern for the Pacific oyster, Crassostrea gigas, industry all over the world and particularly in France. Outbreaks appear when oysters are in gonadal maturation. Bivalve defence mechanisms against pathogen invasion are assumed by circulating cells, the hemocytes. A field experiment was conducted in the Marennes-Oleron Basin (Charente-Maritime, France) in order to monitor hemocyte parameters, gametogenesis and mortality rates among C. gigas during 7 months from March to September 2002. Diploid (from natural bed and from hatchery) and triploid oysters were placed at 15 cm or 70 cm above sediment at Marennes-Oleron Basin. Triploid animals were included because they are considered as sterile animals. Mortality rates... |
| Tipo: Text |
Palavras-chave: Sexual maturation; Summer mortality; Triploids; Diploids; Flow cytometry; Hemocyte activities; Crassostrea gigas; Pacific oyster. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/publication-2923.pdf |
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| Madec, Patrick. |
| Le programme de recherche MOREST est mis en place afin de comprendre les phénomènes de MORtalités ESTivales de l'huître creuse apparus depuis une dizaine d'années le long du littoral français. L'étude d'une durée de 5 mois, effectuée au sein du Laboratoire Conchylicole de Poitou-Charentes (LCPC) s'inscrit dans cette problématique. L'objectif est d'associer la mortalité et les performances zootechniques de 3 cheptels d'huîtres, deux diploïdes (issu de captage naturel et d'écloserie) et un triploïde, élevés dans 3 environnements du bassin de Marennes-Oléron. Les deux premiers sites expérimentaux sur estran sont constitués de tables d'élevage à proximité du sédiment et de tables à 70 cm du sol. Le troisième environnement correspond à une claire ostréicole.... |
| Tipo: Text |
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| Ano: 2002 |
URL: http://archimer.ifremer.fr/doc/00411/52290/53041.pdf |
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