郑欣;闫振广;刘征涛;刘婷婷;王晓南;武江越;王伟莉;

• 1:中国环境科学研究院环境基准与风险评估国家重点实验室国家环境保护化学品生态效应与风险评估重点实验室

摘要(Abstract)：

轮虫、水螅、涡虫是水生生态系统的重要生物类群。因其对水体污染较敏感,所以对水生生物基准研究有重要意义。依据我国生物区系资料及毒性数据丰度,筛选出8种代表性本土轮虫、水螅、涡虫类生物。参照美国水生生物基准技术指南,搜集、筛选了这8种代表性生物的急性毒性数据,通过数据分析,筛选出对各物种毒性最大的污染物,主要包括重金属、农药、有机锡化物、表面活性剂、吡啶胺类杀菌剂。分析污染物的物种敏感度分布,依据累积概率对代表性生物的物种敏感性进行分类,结果为:萼花臂尾轮虫(Brachionus calyciflorus)、绿水螅(Hydra viridissima)、普通水螅(Hydra vulgaris)对重金属铜的累积概率为6.5%、8.5%和10.4%,普通水螅(Hydra vulgaris)对重金属汞的累积概率为6.3%;龟甲轮虫(Keratella cochlearis)和四齿腔轮虫(Lecane quadridentata)对五氯酚钠的累积概率为5.1%和7.6%;褐水螅(Hydra oligactis)和绿水螅(Hydra viridissima)对三丁基氧化锡的累积概率为6.9%和13.8%,萼花臂尾轮虫(Brachionus calyciflorus)对氟啶胺的累积概率为6.7%,日本三角涡虫(Dugesia japonica)对四氯化碳、十二烷基苯磺酸钠的累积概率分别为6.7%和7.1%。上述结果表明:萼花臂尾轮虫、绿水螅对重金属铜敏感;普通水螅对重金属铜和汞敏感;龟甲轮虫和四齿腔轮虫对农药敏感;褐水螅和绿水螅对有机锡化物敏感;萼花臂尾轮虫对吡啶胺类杀菌剂敏感;日本三角涡虫对四氯化碳、表面活性剂敏感。这7种代表性生物可作为相关污染物的水生生物基准受试物种。

关键词(KeyWords)： 基准受试生物;轮虫;水螅;涡虫;水生生物基准;物种敏感度分布

Abstract:

Keywords:

基金项目(Foundation): 国家水体污染控制与治理科技重大专项(2012ZX07501-003-06);; 科技部科技基础性工作专项(2014FY120600)

作者(Author): 郑欣;闫振广;刘征涛;刘婷婷;王晓南;武江越;王伟莉;

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