Trace metals in the marine bivalve Macoma balthica in the Westerschelde estuary, The Netherlands - Part 2 : Intracellular partitioning of copper, cadmium, zinc and iron : Variations of the cytoplasmic metal concentrations in natural and in
The intracellular distribution of copper, cadmium, zinc and iron in the marine bivalve Macoma balthica was studied for 18 months at two locations in the Westerschelde estuary. Metal concentrations in the soluble fraction (cytosol) and in the particulate phase of the soft tissues were measured by atomic absorption spectrometry. The case of non-essential cadmium is extremely interesting since the average difference in total concentration between the two stations (factor of 4) induces a much more marked average difference in cytosolic metal (factor of 15). Short-term metal exposures carried out in the laboratory show a high sensitivity of this clam to Cd, a moderate sensitivity to Cu and no uptake of Zn. For the essential elements, the intracellular partitioning is not significantly affected.
Bibliographic Reference: Article: The Science of the Total Environment, Vol. 151 (1994) pp. 113-124
Record Number: 199411134 / Last updated on: 1994-11-25
Original language: en
Available languages: en