杜建国;赵佳懿;陈彬;陈明茹;周通;俞炜炜;马志远;胡文佳;

• 1:国家海洋局第三海洋研究所
• 2:厦门大学海洋与海岸带发展研究院
• 3:厦门大学海洋与地球学院
• 4:福建海洋研究所

摘要(Abstract)：

应用生态风险评价中的物种敏感性分布(species sensitivity distributions,SSD)方法构建了8种常见重金属元素(As、Cd、Cr、Cu、Hg、Mn、Pb、Zn)对海洋生物的SSD曲线。在此基础上计算了8种重金属对海洋生物的5%危害浓度(HC5)及其不同暴露浓度对海洋生物的潜在影响比例(PAF),比较了海洋脊椎动物和无脊椎动物对8种重金属的敏感性以及不同重金属的急性生态风险。结果表明,重金属对甲壳类的生态风险均比鱼类大。8种重金属元素对所研究的海洋生物全部物种的HC5值的排序为Pb>Mn>Zn>Cr>Cu>Hg>Cd>As。暴露浓度小于10μg·L-1时,Cr和Hg的生态风险差异不大。在10μg·L-1的暴露浓度下,As、Cd、Cu和Hg均使全部物种中超过10%的生物受到影响。随着浓度升高,不同重金属的生态风险有不同幅度的增大,当浓度达到1000μg·L-1时,分别有82.49%、87.31%和85.90%的物种受到As、Cu和Hg的损害。不同生物的敏感性顺序会随重金属的浓度范围发生变化。

关键词(KeyWords)： 重金属;海洋生物;生态风险;物种敏感性分布

Abstract:

Keywords:

基金项目(Foundation): 国家海洋局青年海洋科学基金资助项目(2011143);; 海洋公益性行业科研专项经费资助(201105015);; 国家自然科学基金资助项目(31101902);; 福建省自然科学基金资助项目(2012J05074);; 国家海洋局第三海洋研究所基本科研业务费专项资金资助项目(海三科2011006)

作者(Author): 杜建国;赵佳懿;陈彬;陈明茹;周通;俞炜炜;马志远;胡文佳;

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