Data/hora: 02/06/2024 10:43:31

Provedor de dados: | 5
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; Oysters.
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 (&gt;35 mm to 75 mm), marketable oysters (&gt;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
Identificador: | http://archimer.ifremer.fr/doc/1992/publication-3065.pdf
Editor: | American Fisheries Society
Relação: | http://archimer.ifremer.fr/doc/00000/3065/
Formato: | application/pdf
Fonte: | North American Journal of Fisheries Management (American Fisheries Society), 1992 , Vol. 12 , P. 825-832