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| Brizard, Raphael; Boudry, Pierre; Haffray, Patrick; Labbe, C.; Suquet, Marc; Robert, Rene; Masse, G.; Pepin, Jean-francois; Saulnier, Denis. |
| In order to improve oyster culture, many research programs try and propose new methods aiming at improving genetically the product performances and quality (selection, polyploidisation). As for terrestrial animal production, the continuity of the different works as well as the spreading of the genetical progress would be made easier by the development of conservation techniques of the selected genotypes. Cryopreservation, which is often used in selection programs of terrestrial animals or fish farming species, is not always available for bivalves. This technique would enable the conservation of the gametes of individuals selected for their high growth potential, their resistance to diseases and/or their quality for a smaller cost and less risks than the... |
| Tipo: Text |
Palavras-chave: Tetraploïde; Diploïde; Concervation; Spermatozoides; Cryoconservation; Génétique; Crassostrea gigas; Huîtres. |
| Ano: 2006 |
URL: http://archimer.ifremer.fr/doc/2006/acte-3339.pdf |
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| Sicre, M. -a.; Khodri, M.; Mignot, J.; Eiriksson, J.; Knudsen, K. -l.; Ezat, U.; Closset, I.; Nogues, P.; Masse, G.. |
| In this study, we use IP25 and alkenone biomarker proxies to document the subdecadal variations of sea ice and sea surface temperature in the subpolar North Atlantic induced by the decadally paced explosive tropical volcanic eruptions of the second half of the thirteenth century. The short-and long-term evolutions of both variables were investigated by cross analysis with a simulation of the IPSL-CM5A LR model. Our results show short-term ocean cooling and sea ice expansion in response to each volcanic eruption. They also highlight that the long response time of the ocean leads to cumulative surface cooling and subsurface heat buildup due to sea ice capping. As volcanic forcing relaxes, the surface ocean rapidly warms, likely amplified by subsurface heat,... |
| Tipo: Text |
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| Ano: 2013 |
URL: https://archimer.ifremer.fr/doc/00264/37475/36514.pdf |
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