Uptake and bioconcentration of copper and zinc by the molluscs Saccostrea cucullata (Born) and Cerithium rubus (Desh) from the coastal waters of Bombay
Abstract
Rate of uptake increased linearly during the initial period of 20-30 days. Compared to the gastropod, the rate of uptake in oyster was 2.2 and 9.4 times more respectively for Cu and Zn. In oysters collected from a polluted area off Bombay Coast, India, high levels of Zn (av 4522 mu g.g/1 dry wt) and Cu (av 420 mu g.g/1 dry wt) were observed. The concentrations of these metals in the snails were low (av 216 and 126 mu g.g/1 dry wt respectively)
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