Document Detail


Concentration and toxic potential of polychlorinated biphenyl congeners in migratory oceanic birds from the North Pacific and the Southern Ocean.
MedLine Citation:
PMID:  11570807     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Concentrations of PCBs and their toxic potential were examined in subcutaneous fat of eight albatross and one petrel species collected from the North Pacific and the Southern Oceans. Among all the species analyzed, high PCB levels were found in adult male blackfooted albatross from the North Pacific with the mean value of 92 microg/g wet weight. No significant gender difference in PCB accumulation was observed (P>0.1). The mean PCB levels in Southern Oceanic birds were 1 or 2 orders of magnitude lower than those from the North Pacific albatrosses. A regional-specific accumulation of non-ortho coplanar congeners were observed, most birds from the Southern Ocean had higher IUPAC 169 levels while IUPAC 126 concentrations were higher in those from the North Pacific. The estimated toxic equivalents for black-footed and Laysan albatrosses from the North Pacific were in the same range of some fish-eating birds, which were highly contaminated by PCBs. The correlation between ratio of IUPAC 169/126 concentration and total PCBs concentration indicated the possibility of induction in cytochrome P450 activities in North Pacific albatrosses (P<0.01). The calculated hazard indices indicated that black-footed and Laysan albatrosses inhabiting in the North Pacific had similar threshold levels which were known to cause toxic effects in some populations of fish-eating birds.
Authors:
K S Guruge; H Tanaka; S Tanabe
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Marine environmental research     Volume:  52     ISSN:  0141-1136     ISO Abbreviation:  Mar. Environ. Res.     Publication Date:  2001 Sep 
Date Detail:
Created Date:  2001-09-25     Completed Date:  2002-02-07     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  9882895     Medline TA:  Mar Environ Res     Country:  England    
Other Details:
Languages:  eng     Pagination:  271-88     Citation Subset:  IM    
Affiliation:
Center for Marine Environmental Studies, Ehime University, Matsuyama, Japan. guruge@niah.affrc.go.jp
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MeSH Terms
Descriptor/Qualifier:
Adipose Tissue / chemistry*
Animals
Antarctic Regions
Birds / metabolism*
Diet / adverse effects,  veterinary
Environmental Monitoring
Environmental Pollutants / metabolism*,  toxicity
Female
Geography
Male
Movement
Pacific Ocean
Polychlorinated Biphenyls / metabolism*,  toxicity
Water Pollutants, Chemical / metabolism,  toxicity
Chemical
Reg. No./Substance:
0/Environmental Pollutants; 0/Polychlorinated Biphenyls; 0/Water Pollutants, Chemical

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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