摘要
Experiments were designed to expose the filter-feeding bivalve Perna 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.
实验被设计暴露喂过滤器的瓣鳃类 Perna viridisto 不同的污染 Cd 的水环境以便比较 Cd 通过被积累的不同小径。结果证明贻贝能在时间的一个短时期通过海水，食物，沉积和推迟的粒子小径积累 Cd。贻贝“通过海水小径的 Cd 的举起到达最高的集中比通过水藻和沉积小径大约 3 和 9 倍分别地在 7 d 以后。这显示通过海水的 theCd 累积是很有效的。结果也显示举起直接通过贻贝摄取的污染水藻，粒子或沉积是不太重要的什么时候与由通过海水小径的贻贝的 Cd 的举起相比。由海洋的瓣鳃类的简历累积的金属举起小径和机制也在这篇论文被讨论。
