Bioaccumulation and trophic transfer of polybrominated diphenyl ethers (PBDEs) in a marine food web from Liaodong Bay, North China.
Bioaccumulation and trophic transfer of polybrominated diphenyl ethers (PBDEs) in a marine food web from Liaodong Bay, North China.
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DOI：
10.1016/j.marpolbul.2013.07.020
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发表时间：
2013-09
影响因子：
5.8
通讯作者：
Xindong Ma;Haijun Zhang;Ziwei Yao;Xiaofeng Zhao;Longxing Wang;Zhen Wang;Jiping Chen;Jingwen Chen-Jingwe
中科院分区：
文献类型：
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作者：
Xindong Ma;Haijun Zhang;Ziwei Yao;Xiaofeng Zhao;Longxing Wang;Zhen Wang;Jiping Chen;Jingwen Chen-Jingwe
对从中国北方辽东湾收集的海洋食物网内的生物体中 21 种多溴二苯醚 (PBDE) 同系物的浓度进行了分析。所有样品中 PBDE 的总浓度范围为 0.87 至 91.4 ng g−1 脂质重量 (lw)。 BDE-47 是主要同源物，浓度范围为 0.30 至 36.1 ng g−1lw。使用从稳定氮同位素比率获得的营养水平计算 PBDE 的营养放大因子 (TMF)。整个食物网中ΣPBDEs的TMF值为3.50，不包括海鸟的食物网中ΣPBDEs的TMF值为2.21。 BDE-99/BDE-100、BDE-99/BDE-47、BDE-153/BDE-154 和 BDE-183/BDE-154 四种浓度比随着无脊椎动物和鱼类营养水平的增加而线性下降 (p< 0.01)。结果表明，PBDEs 在沿着食物链的营养转移过程中稳步代谢。
The concentrations of 21 polybrominated diphenyl ethers (PBDEs) congeners were analyzed in organisms within a marine food web collected from the Liaodong Bay, North China. The total concentrations of PBDEs in all samples ranged from 0.87 to 91.4 ng g−1lipid weight (lw). BDE-47 was the predominant congener and had a concentration ranging from 0.30 to 36.1 ng g−1lw. The trophic magnification factors (TMF) of the PBDEs were calculated using the trophic levels obtained from the stable nitrogen isotope ratios. The TMF value of ∑PBDEs was 3.50 for the entire food web and 2.21 for the food web excluding seabirds. Four concentration ratios, BDE-99/BDE-100, BDE-99/BDE-47, BDE-153/BDE-154 and BDE-183/BDE-154, decreased linearly with the increase of the trophic levels in the invertebrates and the fishes (p< 0.01). The results suggested that the PBDEs were steadily metabolized in the trophic transfer process along the food chain.