认识动物是如何暴露于水沉积物中金属污染物巨大富含库 ,是一个复杂的问题 ;对于制定规章决策是重要的。采用 4种无脊椎动物的实验证明 :进食行为和饮食摄取调控镉、银、镍和锌的生物浓聚。动物组织中的金属浓度与从沉积物提取的金属浓度相关 ,但与微孔水 (porewater) (经过一 Knowing how animals are exposed to water deposits is a complex issue with the huge abundance of metal contaminants; it is important to make regulatory decisions. Experiments using four species of invertebrates demonstrate that eating behavior and dietary intake regulate the bioaccumulation of cadmium, silver, nickel and zinc. The concentration of metal in animal tissue is related to the concentration of metal extracted from the deposit but is not related to the porewater