Abstract
Experiments were designed to expose the filter-feeding bivalvePerna viridis to different Cd-contaminated water environments in order to compare the different pathways through which Cd is accumulated. Results show that mussels can accumulate Cd through seawater, food, sediment and suspended particle pathways in a short period of time. Mussels' uptake of Cd through the seawater pathway reaches the highest concentration approximately 3 and 9 times larger than through the algae and sediment pathways respectively after 7 d. This indicates that the Cd-accumulation through seawater is most efficient. Results also indicate that the uptake directly through contaminated algae, particles or sediments ingested by mussels is less important when compared with the uptake of Cd by mussels through the seawater pathway. Metal uptake pathways and mechanisms of bioaccumulation by marine bivalve are also discussed in this paper.
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Zhanqiang, F. Comparative studies on uptake pathway of cadmium byPerna viridis . J. Ocean Univ. China 5, 49–54 (2006). https://doi.org/10.1007/BF02919373
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DOI: https://doi.org/10.1007/BF02919373