Bioaccumulation of metals in oyster (Crassostrea gigas) from Liaodong Bay in Bohai Sea: Seasonal, regional and size-dependent variations
2019
Heavy metal concentrations were determined in oyster (C. gigas), planktons and seawater from Liaodong Bay. Samples were collected during spring, summer and autumn. Heavy metal concentrations in oysters, planktons and seawater showed variations depending on season, sampling site and size of the oysters. Heavy metal concentrations in oysters, planktons and seawater were higher in summer and the lowest levels were found in autumn. The maximum levels of Cd and Pb were found in oysters of size-class III while the maximum levels of Cr, Cu and Zn were found in those of size-class II. The minimum levels of Cu and Pb were observed in oysters of size-class I. The minimum levels of Cd were observed in those of size-class II. And the minimum levels of Cr and Zn were observed in those of size-class III. There were significant differences in metal concentrations of oysters, planktons and seawater between sampling sites.
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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