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Provedor de dados:  ArchiMer
País:  France
Título:  Evaluation of oyster sampling efficiency of patent tongs and an oyster dredge
Autores:  Chai, Ai-ling
Homer, Mark
Tsai, Chu-fa
Goulletquer, Philippe
Data:  1992
Ano:  1992
Palavras-chave:  Chesapeke Bay
Sampling efficiencies
Crassostrea virgnica
Resumo:  Sampling efficiency of two oyster fishing gears, patent tongs and an oyster dredge, were compared in reference to diver-harvested quadrats in Chesapeake Bay, which supports important harvests of eastern oyster Crassosrrea virginica. Mean densities of spat (0$35 mm), small oysters (>35 mm to 75 mm), marketable oysters (>75 mm), and all oysters (three size-groups combined) estimated from patent tong samples were not significantly different from those derived from diver-harvested quadrat samples. In contrast, the densities estimated from dredge samples were low, only 2-32% of the diver estimates. Accordingly, patent tongs are recommended as the sampling gear for estimating eastern oyster stock abundance in the Maryland portion of Chesapeake Bay.
Tipo:  Text
Idioma:  Inglês
Editor:  American Fisheries Society
Formato:  application/pdf
Fonte:  North American Journal of Fisheries Management (American Fisheries Society), 1992 , Vol. 12 , P. 825-832

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