Body Burdens of Persistent Halogenated Compounds during Different Development Stages of Anadromous Brown Trout (Salmo trutta)

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• 作者：Tore C. Svendsen ; Katrin Vorkamp ; Marie Frederiksen ; Bent R//pubs.acs.org/images/gifchars/oslash.gif" border="0">nsholdt ; Jens-Ole Frier
• 刊名：Environmental Science & Technology
• 出版年：2007
• 出版时间：September 1, 2007
• 年：2007
• 卷：41
• 期：17
• 页码：5980 - 5985
• 全文大小：267K
• 年卷期：v.41,no.17(September 1, 2007)
• ISSN：1520-5851

文摘

Polychlorinated biphenyls (PCBs), DDTs, and polybrominateddiphenyl ethers (PBDEs) were followed through the fivelife stages of a wild population of anadromous brown troutand related to variations in lipid content and exposuresituations. Anadromous brown trout exhibits great variationsin lipid content during its life cycle in the freshwaterand marine environments. The results indicated substantialdifferences in PBDE and organochlorine exposure, withapparently more recent sources of PBDEs in the freshwaterenvironment relative to the marine environment. Lipidand contaminant transfer were not always identical: Theconcentrations of PCBs, DDTs, and PBDEs (ng/g lipidweight) were about 15 times lower in the eggs comparedto the muscle of their mother (e.g., 823 ng PCB/g lw vs12 565 ng PCB/g lw, respectively). During the starving periodfrom maiden to spawning trout the contaminant loadincreased by a higher factor than the lipid use. The datasuggest a decoupling between lipid content and organohalogen concentrations for anadromous brown trout,which may contribute positively to reduce any potentialnegative effects of the transferred contaminants on eggsand fry.