Body burdens of persistent halogenated compounds during different development stages of anadromous brown trout (Salmo trutta).
Polychlorinated biphenyls (PCBs), DDTs, and polybrominated diphenyl ethers (PBDEs) were followed through the five life stages of a wild population of anadromous brown trout and related to variations in lipid content and exposure situations. Anadromous brown trout exhibits great variations in lipid content during its life cycle in the freshwater and marine environments. The results indicated substantial differences in PBDE and organochlorine exposure, with apparently more recent sources of PBDEs in the freshwater environment relative to the marine environment. Lipid and contaminant transfer were not always identical: The concentrations of PCBs, DDTs, and PBDEs (ng/g lipid weight) were about 15 times lower in the eggs compared to the muscle of their mother (e.g., 823 ng PCB/g Iw vs. 12,565 ng PCB/g lw, respectively). During the starving period from maiden to spawning trout the contaminant load increased by a higher factor than the lipid use. The data suggest a decoupling between lipid content and organohalogen concentrations for anadromous brown trout, which may contribute positively to reduce any potential negative effects of the transferred contaminants on eggs and fry.
Svendsen
Tore C
TC
Department of Biotechnology, Chemistry and Environmental Engineering, Sohngårdsholmsvej 57, Aalborg University, 9000 Aalborg, Denmark. ts@bio.aau.dk
Vorkamp
Katrin
K
Frederiksen
Marie
M
Rønsholdt
Bent
B
Frier
Jens-Ole
JO
D000818:Animals; D001822:Body Burden; D003634:DDT / Q000493:pharmacokinetics / Q000633:toxicity; D004531:Eggs / Q000032:analysis; D004784:Environmental Monitoring; D005411:Flame Retardants / Q000493:pharmacokinetics / Q000633:toxicity; D005506:Food Contamination; D006207:Half-Life; D055768:Halogenated Diphenyl Ethers; D006846:Hydrocarbons, Halogenated / Q000493:pharmacokinetics* / Q000633:toxicity; D008018:Life Cycle Stages / Q000187:drug effects* / Q000502:physiology; D008055:Lipids / Q000097:blood; D009132:Muscles / Q000187:drug effects* / Q000378:metabolism; D010573:Pesticide Residues / Q000493:pharmacokinetics / Q000633:toxicity; D010647:Phenyl Ethers / Q000493:pharmacokinetics / Q000633:toxicity; D011075:Polybrominated Biphenyls / Q000493:pharmacokinetics / Q000633:toxicity; D011078:Polychlorinated Biphenyls / Q000493:pharmacokinetics / Q000633:toxicity; D054712:Salinity; D013997:Time Factors; D014337:Trout / Q000254:growth & development*; D014874:Water Pollutants, Chemical / Q000493:pharmacokinetics / Q000633:toxicity
D005411:Flame Retardants; D055768:Halogenated Diphenyl Ethers; D006846:Hydrocarbons, Halogenated; D008055:Lipids; D010573:Pesticide Residues; D010647:Phenyl Ethers; D011075:Polybrominated Biphenyls; D014874:Water Pollutants, Chemical; C086401:pentabromodiphenyl ether; D003634:DDT; D011078:Polychlorinated Biphenyls