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首页> 外文会议>International symposium on halogenated persistent organic pollutants >POLYBROMINATED DIPHENYL ETHERS IN SEAWATER CAGE-FARMED FISH FROM TWO ESTUARINE BAYS IN SOUTH CHINA: IMPLICATIONS FOR SOURCE INPUTS AND BIOTRANSFORMATION
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POLYBROMINATED DIPHENYL ETHERS IN SEAWATER CAGE-FARMED FISH FROM TWO ESTUARINE BAYS IN SOUTH CHINA: IMPLICATIONS FOR SOURCE INPUTS AND BIOTRANSFORMATION

机译：中国南方两个河口湾海水养殖场养殖鱼类中的多溴化二苯醚：对源输入和生物转化的影响

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摘要

Polybrominated diphenyl ethers (PBDEs) were measured in two seawater farmed fish species, crimson snapper and snubnose pompano, and their semi-digested stomach contents from two estuarine bays of South China. The concentrations of PBDEs were higher in crimson snapper than in snubnose pompano at the same lipid content levels, and increased with increasing fish weight and body length in both fish species. The different relative abundances of BDE congeners in two fish species were attributed mainly to the different feeds used (marine compound feed for snubnose pompano and trash fish for crimson snapper). The results indicate that PBDEs in fish feeds were the main source of PBDEs in seawater farmed fish species in South China. In addition, the values of BDE-99/BDE-100 were variable in fish species, semi-digested stomach contents and fish feeds, indicating the likelihood for biotransformation of BDE-99 to BDE-47 in fish, and snubnose pompano seemed to have higher ability to debrominate BDE-99 than crimson snapper. Furthermore, significantly higher abundances of BDE-183, -154, 153 and -126 in snubnose pompano than in its semi-digested stomach contents and marine compound feed in which BDE-209 was ubiquitous demonstrated that BDE-209 could be bioaccumulated and debrominated by fish species in actual environments.
机译：在中国南方的两个河口湾中，对两种海水养殖的鱼类（深红鲷鱼和金丝雀mp鱼）进行了多溴联苯醚（PBDEs）的测定，并测定了其半消化的胃内容物。在相同的脂质含量下，深红色鲷鱼中的多溴二苯醚浓度要高于金丝雀mp鱼中的多溴二苯醚浓度，并且两种鱼中鱼的体重和体长都随着增加而增加。在两种鱼类中，BDE同系物的相对相对丰度主要归因于所用饲料的不同（深海po鱼的海洋复合饲料和深红鲷鱼的杂鱼）。结果表明，鱼饲料中的多溴二苯醚是中国南方海水养殖鱼类中多溴二苯醚的主要来源。此外，在鱼类，半消化的胃内容物和鱼饲料中，BDE-99 / BDE-100的值是可变的，这表明鱼中BDE-99可能会生物转化为BDE-47，而sn鱼po鱼似乎具有与深红鲷鱼相比，脱溴BDE-99的能力更高。此外，与半消化的contents内容物和普遍存在BDE-209的海洋复合饲料相比，金丝雀mp鱼中BDE-183，-154、153和-126的丰度明显更高，这表明BDE-209可以被生物富集和脱溴实际环境中的鱼类。

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  • 会议地点 Beijing(CN)
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    Ying Guo; Huan-Yun Yu; Ru-Lang Shen; Eddy Y.Zeng;

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    State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China Graduate School of the Chinese Academy of Science Beijing 100039 China;

    State Key Laboratory of Organic Geochemistry Guangzhou Institute of Geochemistry Chinese Academy of Sciences Guangzhou 510640 China;

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