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| Registros recuperados: 44 | |
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| Devauchelle, Nicole; Barret, Jean; Salaun, Gilles. |
| This report compiles 17 short and illustrated syntheses concerning the natural strategies of reproduction and the artificial control of the reproductive process for the flat oyster, Ostrea edulis, the japanese oyster, Crassostrea gigas, the mussels, Mytilus edulis and My ti/us galloprovincialis, the scallop, Pecten maximus. An additional syntheses is presented, as a comparison within molluscs, which are the main research topics at IFREMER concerning the artificial control of the reproductive processes in Marine Fish. Three main subjects are documented : 1. the ecophysiology of the natural period of reproduction in the wild, 2. the methods developed in the hatcheries for the artificial control of the reproductive periods, the gametes collection and the... |
| Tipo: Text |
Palavras-chave: Bivalves; Stratégie de reproduction; Contrôle artificiel; Gonades; Gamètes; Coquille St Jacques; Moules; Huîtres; Nourriture; Photopériode; Température; Biologie; Physiologie; Biochimie.; Bivalves; Reproductive strategy; Artificial induction of reproduction; Gonads; Gametes; Scallop; Mussels; Oysters; Food; Light; Temperature; Biology; Physiology; Biochemistry.. |
| Ano: 1997 |
URL: http://archimer.ifremer.fr/doc/00043/15441/12811.pdf |
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| Devauchelle, Nicole. |
| In order to develop an intensive marine fish production, it is necessary to obtain in a first time the captive spawners maturation. The results presented herein show that red mullus mullus surmuletus is an easy species for acclimatization in 20 m3 tanks : only one year after seining the fish in a breton coastal pond, several spawns were produced each year between 1975 and 1983, at the same period : April to beginning of 3une. The average number of eggs corresponding to one oviposition is estimated to 33 000. The diameter of fecund eggs is small : 0.81 to 0.94 mm. Their mean viability appears to be high : 90 %, as the hatching rate : 95 % obtained from viable eggs, at constant temperature (13 ± 0.5°C). In these conditions larval deformities get up rarely... |
| Tipo: Text |
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| Ano: 1983 |
URL: http://archimer.ifremer.fr/doc/00048/15931/13357.pdf |
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| Registros recuperados: 44 | |
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