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| Le Borgne, Y. |
| The early life stages of the growth of bivalve molluscs being now controlled, at least for oysters and clams, it is possible to obtain seeds in large amounts and at given times. Reproduction may be obtained at any period of the year and the survival rates range from 5 to 50 % these values being considerable compared to those of natural reproduction in the sea. However the cost of the spat increases very sharply with size because of energy input (heating, pumping and phytoplancton production). |
| Tipo: Text |
Palavras-chave: Histoire Ifremer. |
| Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/1979/publication-6042.pdf |
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| Le Borgne, Y; Diss-mengus, B; Marin, J. |
| Introduction: Among the problems found in mollusc hatcheries, the feeding of growing post larvae is of primary concern. It is therefore essential to reach algal production rationalisation through precise knowledge of the nutritional requirements of the different species of spat produced, and this for a diversity of size classes. Many authors, such as HARTMAN and EPIFANIO (1973), PRUDER and al. (1976), have attempted to establish appropriate food rations in laboratory for various post larvae mollusks according to their average weight. However, it is difficult to adapt those results to hatchery experiments, since raising conditions and yield issues are totally different. The purpose of this work is to determine nutritional rations required for different post... |
| Tipo: Text |
Palavras-chave: Crassostrea gigas; Ostrea edulis; Artificial feeding; Oyster culture; Food composition. |
| Ano: 1978 |
URL: http://archimer.ifremer.fr/doc/1978/rapport-1758.pdf |
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