Document Detail

Bioaccumulation of PCBs in burbot (Lota lota L.) after delivery in natural food.
MedLine Citation:
PMID:  16001148     Owner:  NLM     Status:  MEDLINE    
Burbot (Lota lota) caught from Lake Päijänne, Central Finland, were exposed under laboratory conditions to four polychlorinated biphenyl (PCB) congeners delivered through diet, and accumulation of congeners to muscle, intestine, gonads, and liver were determined. The selected PCB congeners (PCB18, PCB44, PCB137, and PCB169) were added to intact dead vendace (Coregonus albula) and burbot were fed 5 or 10 contaminated meals (2- and 4-week experiment, respectively). Concentrations of fed congeners were different in the examined tissues. The highest concentrations of all the congeners were found in the livers of burbot. The mean retention efficiencies were 65.0% and 81.7% after 5 and 10 oral doses, respectively. The retention efficiency of the coplanar 169 was lower than those of the other fed congeners. The background organochlorine concentrations of the burbot of this study were compared with the PCB concentrations of burbot caught in the 1970s from Lake Päijänne. These concentrations were compared in order to clarify the PCB load and persistence in a boreal aquatic food web. The total PCB concentration in burbot has not declined during the last decades. The most abundant PCB congeners in the field were PCB138 and PCB153. Residual concentrations of pesticides were also found, especially the DDE, which is a metabolite of DDT.
J-P J Pääkkönen; A-L Rantalainen; A Karels; A Nikkilä; J Karjalainen
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2005-07-06
Journal Detail:
Title:  Archives of environmental contamination and toxicology     Volume:  49     ISSN:  0090-4341     ISO Abbreviation:  Arch. Environ. Contam. Toxicol.     Publication Date:  2005 Aug 
Date Detail:
Created Date:  2005-09-15     Completed Date:  2005-10-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0357245     Medline TA:  Arch Environ Contam Toxicol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  223-31     Citation Subset:  IM    
Finnish Institute of Marine Research, 33, Helsinki, FIN-00931, Finland.
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MeSH Terms
Animal Feed
Food Chain
Gadiformes / metabolism*
Organ Specificity
Polychlorinated Biphenyls / pharmacokinetics*
Tissue Distribution
Water Pollutants, Chemical / pharmacokinetics*
Reg. No./Substance:
0/Polychlorinated Biphenyls; 0/Water Pollutants, Chemical

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