|
|
| Gras, Paul; Comps, Michel; David, A.; Baron, G.. |
| During the summer of 1970 mortality started in the Marennes-Oléron Basin which affected successively adult oysters, 18 year-old oysters and then the oyster spats collected the same year. Only the Portuguese oyster (Crassostrea angulata) was dying whereas the Pacific oyster (Crassostrea gigas) showed total resistance. The abnormal fixation of the 1970 spats, followed by an important mortality in this latter, and the large decrease of adult oyster stocks, and therefore of genitors, were also a reason for oyster farmers to worry as the new reproduction season was about to start. Some measures had to be taken in order to compensate for the lack of genitors susceptible of producing a tough and vivacious spat. The good results obtained for a few years with C.... |
| Tipo: Text |
Palavras-chave: Naissain; Larves; Marennnes Oléron; Crassostrea gigas; Reproduction. |
| Ano: 1971 |
URL: http://archimer.ifremer.fr/doc/1971/publication-6446.PDF |
| |
