Concentrations of cadmium, zinc and copper in sediments and brown shrimp (Crangon crangon L.) from the Severn Estuary and Bristol Channel, UK
Culshaw, C., Newton, L. C., Weir, I. and Bird, D. J. (2002) Concentrations of cadmium, zinc and copper in sediments and brown shrimp (Crangon crangon L.) from the Severn Estuary and Bristol Channel, UK. Marine Environmental Research, 54 (3-5). pp. 331-334. ISSN 0141-1136
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Publisher's URL: http://dx.doi.org/10.1016/S0141-1136(02)00163-0
Cd, Zn and Cu levels were determined in sediments and Crangon crangon from 9 sites in the Severn Estuary/Bristol Channel during winter 1999. Metal levels in both shrimp and sediments varied significantly between sites and were related to proximity of input and/or sediment type. In the upper Estuary, Cd levels in shrimp were 100x higher than other reported values whereas sediment Cd contamination was comparable. It is suggested that high Cd levels in shrimp are due to the high inputs and enhanced bioavailability of metal during winter.