Document Detail

Organochlorines, brominated flame retardants and mercury levels in six seabird species from the Gulf of St. Lawrence (Canada): relationships with feeding ecology, migration and molt.
MedLine Citation:
PMID:  20363539     Owner:  NLM     Status:  MEDLINE    
Concentrations of organochlorines (OCs), brominated flame retardants (BFRs) and mercury (Hg) were measured in eggs of six seabird species breeding in the Gulf of St. Lawrence, Canada. Stable nitrogen (delta15N) and carbon (delta13C) isotopes were used as ecological tracers to measure trophic level and connectivity with benthos, respectively. Concentrations, patterns as well as ecological tracers varied significantly between species. The sum of polychlorinated biphenyls (SigmaPCBs) was the most important group measured in all seabird species based on concentration followed generally by the sum of chlorinated pesticides (SigmaCPs), the sum of brominated flame retardants (SigmaBFRs) and finally total Hg (THg). SigmaPCBs, SigmaCPs and SigmaBFRs increased with trophic level, whereas THg did not. Only SigmaBFRs increased with a higher connectivity with the benthos. Seabird species resident to the Great Lakes-St. Lawrence ecosystem showed higher Hg and BFR levels than migratory species. Molt patterns were used to explain variations of contaminant levels.
Raphael A Lavoie; Louise Champoux; Jean-François Rail; David R S Lean
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-04-03
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  158     ISSN:  1873-6424     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2010 Jun 
Date Detail:
Created Date:  2010-05-10     Completed Date:  2010-08-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  2189-99     Citation Subset:  IM    
Copyright Information:
Copyright 2010 Elsevier Ltd. All rights reserved.
Biology Department, University of Ottawa, 30 Marie Curie, Ottawa, ON, Canada K1N 6N5.
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MeSH Terms
Animal Migration / physiology*
Birds / growth & development*,  metabolism,  physiology
Data Interpretation, Statistical
Environmental Monitoring*
Environmental Pollutants / analysis*
Feeding Behavior / physiology*
Flame Retardants / analysis
Hydrocarbons, Brominated / analysis
Hydrocarbons, Chlorinated / analysis
Methylmercury Compounds / analysis
Molting / physiology*
Ovum / chemistry,  drug effects
Species Specificity
Reg. No./Substance:
0/Environmental Pollutants; 0/Flame Retardants; 0/Hydrocarbons, Brominated; 0/Hydrocarbons, Chlorinated; 0/Methylmercury Compounds

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