多毛类环节动物沙蚕对膳食内分泌干扰化学物质（EDCs）的生物积累。
Bioaccumulation of dietary endocrine disrupting chemicals (EDCs) by the polychaete, Perinereis nuntia.
机构信息
United Graduate School of Agricultural Sciences, Kagoshima University, 4-50-20 Shimoarata, Kagoshima, 890-0056, Japan.
出版信息
Bull Environ Contam Toxicol. 2013 Oct;91(4):372-6. doi: 10.1007/s00128-013-1073-9. Epub 2013 Aug 4.
To investigate the biomagnification factor (BMF) of EDCs by the polychaete, Perinereis nuntia, organisms were exposed to EDCs through their diet. BMF values ranged from 0.001 to 0.028 indicating that EDCs were not biomagnified. Elimination rates were (0.20-0.25 day(-1)) and were higher than uptake rate (0.0003-0.003 day(-1)) verifying that EDCs were not biomagnified by P. nuntia due to their fast elimination. The calculated half-life of each EDC in this study varies from 2.76 to 3.45 days. Overall, the findings from this study demonstrated that the studied EDCs are not biomagnified in P. nuntia but exposure does occur from the diet.
为了研究多毛类环节动物沙蚕对环境内分泌干扰物（EDCs）的生物放大系数（BMF），研究人员通过饮食使生物体暴露于 EDCs 中。BMF 值范围为 0.001 至 0.028，表明 EDCs 没有被生物放大。消除率为（0.20-0.25 天（-1）），高于吸收速率（0.0003-0.003 天（-1）），这验证了由于 EDCs 的快速消除，沙蚕不会通过 P. nuntia 进行生物放大。本研究中每种 EDC 的计算半衰期从 2.76 到 3.45 天不等。总的来说，这项研究的结果表明，在所研究的沙蚕中，这些 EDCs 没有被生物放大，但确实会通过饮食暴露。
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