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A Prospective Study of the Oyster-Farming in Senegal, West Africa

by K. D. Leung Tack, Univ de Dakar, Senegal, Univ de Dakar, Senegal,
J. Pages, Univ de Dakar, Senegal, Univ de Dakar, Senegal,



Document Type: Proceeding Paper

Part of: Coastal Zone '87

Abstract:

Various coastal lagoons and estuaries of the region have become oversaline as a consequence of the persistant drought across Sahel. We have monitored the possible consequences of hight salinity (up to 45%. ) on a wild Crassostrea gasar population, centering our study on recruitement (juvenile growth and death rates). Both parameters show that a regeneration of the now depleted populations is possible by altering the exploitation methods. We have compared the growth and the death rates of Crassostrea giqas under the same conditions. While growth during cool months is much more satisfactory, death rate during the warm period precludes a culture of this species under natural conditions.

Subject Headings: Fish and fishery management | Resource management | Coastal management | Lagoons | Estuaries | Salinity | Population projection | Africa | Senegal

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