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海洋科学  2012 

单一与混合重金属在泥蚶体内的累积特征

, PP. 54-60

Keywords: 泥蚶(Tegillarca,granosa),重金属,联合胁迫,生物富集系数

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Abstract:

通过室内半静态暴毒实验,在铜、铅、镉三种重金属的单一胁迫与两两联合胁迫条件下,研究了繁殖期泥蚶(Tegillarcagranosa)对重金属的富集规律。结果表明:泥蚶对单一Cu2+、Pb2+、Cd2+的生物富集系数(BCF)分别为210.16~1178.66、128.15~603.84和198.84~659.37;联合重金属胁迫条件下,Cd2+对Cu2+的富集具有一定的拮抗作用;Cd2+和Cu2+在泥蚶体内以可溶形式存在,而Pb2+以不溶形式存在;Cu2+和Cd2+对泥蚶富集Pb2+有一定的协同效应;砂滤海水中的暂养的泥蚶,其体内的重金属含量除Cu2+外都较为稳定。

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