Document Detail


Marine natural products, the halogenated 1'-methyl-1,2'-bipyrroles, biomagnify in a northwestern Atlantic food web.
MedLine Citation:
PMID:  20583784     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Halogenated 1'-methyl-1,2'-bipyrroles (MBPs) are putative marine natural products that accumulate in marine mammal blubber in similar concentrations and patterns to biomagnifying organic pollutants. Here we measure concentrations of MBPs and 2,2',4,4',5,5'-hexachlorobiphenyl (CB-153) in 40 samples composed of eight fish species, two squid species, and six species of marine mammals. To determine their trophic positions and to further investigate influence of prey preference, we also measured the stable carbon and nitrogen isotopic compositions of all samples. Our results show that lipid-normalized MBP concentrations increase with increasing trophic level; therefore, MBPs qualify as another class of biomagnifying marine natural products. The presence of MBPs in pinniped prey and absence in pinniped blubber suggests that these mammals share dietary exposure to MBPs with odontocetes but have an enhanced ability to metabolize these natural products.
Authors:
Kristin C Pangallo; Christopher M Reddy
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.    
Journal Detail:
Title:  Environmental science & technology     Volume:  44     ISSN:  1520-5851     ISO Abbreviation:  Environ. Sci. Technol.     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-29     Completed Date:  2010-12-28     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0213155     Medline TA:  Environ Sci Technol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  5741-7     Citation Subset:  IM    
Affiliation:
Department of Biochemistry and Microbiology, Rutgers, The State University of New Jersey, 76 Lipman Road, New Brunswick, New Jersey 08901, USA. pangallo@aesop.rutgers.edu
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MeSH Terms
Descriptor/Qualifier:
Animals
Atlantic Ocean
Biological Products / metabolism*
Cetacea / metabolism
Environmental Monitoring*
Fishes / metabolism
Food Chain
Pinnipedia / metabolism
Polychlorinated Biphenyls / metabolism
Pyrroles / metabolism*
Water Pollutants, Chemical / metabolism
Chemical
Reg. No./Substance:
0/Biological Products; 0/Polychlorinated Biphenyls; 0/Pyrroles; 0/Water Pollutants, Chemical; 35065-27-1/2,4,5,2',4',5'-hexachlorobiphenyl

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


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