Uptake of Polynuclear Aromatic Hydorcarbons by Oysters (Crassostrea virginica) Transplanted to an Industrialized Estuarine System

摘要

Oysters (Crassostrea virginica) were transplanted from the pristine Rappahannock River estuary, to the industrialized Elizabeth River estuary. In addition, oysters taken from the Elizabeth River were transplanted to another site within the river. The accumulation of PAHs in both sets was monitored over a period of 9 weeks. Accumulation of PAHs was rapid with approximate equilibrium in 2 to 4 weeks. Differences in metabolism, uptake and/or depuration rates were observed between the two oyster populations. Station differences were evident as well and were correlated to surface sediment contaminated levels. Effects, on the animals, were indicated by depressed lipid levels at the more contaminated stations.