Document Detail

Concentrations, biomagnification and spatial variation of organochlorine compounds in a pelagic food web in the northern part of the Baltic Sea.
MedLine Citation:
PMID:  9695178     Owner:  NLM     Status:  MEDLINE    
Zooplankton, mysis (Mysis sp.) and herring (Clupea harengus) were collected at two pelagic locations in the northern part of the Baltic Sea, one in Bothnian Bay (BB) and the other in the Bothnian Sea (BS), in order to investigate concentrations, composition profiles, biomagnification features and spatial differences of organochlorine contaminants. Compounds included in this study are hexachlorocyclohexanes (HCHs), DDTs, hexachlorobenzene (HCBz), chlordanes (CHLs), dieldrin, mirex and polychlorinated biphenyls (PCBs). All groups of compound were detected in every sample investigated, with the exception of mirex that was detected only in the herring samples. The concentrations of organochlorine compounds in all samples ranged, e.g. from 250 to 1500 ng/g lipid for PCBs and from 6 to 150 ng/g lipid for CHLs. The biomagnification factor (BMF) is calculated as the concentration of the compounds in the organism divided by the concentration in food normalised to lipids. In the zooplankton-mysis-herring food web, large variations in BMFs between the different compound groups were observed. The highest BMFs were obtained for the CHLs followed by the DDTs and the lowest for the HCHs. Nonachlorinated CHLs had the highest BMFs within the group of CHLs and for the DDTs p,p'-DDT had a higher biomagnification potential than its metabolites p,p'-DDE and p,p'-DDD. Finally, concentration and biomagnification differences between the two stations were observed. The herring in the southernmost station (BS) displayed approximately two- to sixfold higher biomagnification than the herring from the north (BB).
B Strandberg; C Bandh; B van Bavel; P A Bergqvist; D Broman; C Näf; H Pettersen; C Rappe
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  The Science of the total environment     Volume:  217     ISSN:  0048-9697     ISO Abbreviation:  Sci. Total Environ.     Publication Date:  1998 Jun 
Date Detail:
Created Date:  1998-08-21     Completed Date:  1998-08-21     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0330500     Medline TA:  Sci Total Environ     Country:  NETHERLANDS    
Other Details:
Languages:  eng     Pagination:  143-54     Citation Subset:  IM    
Institute of Environmental Chemistry, Umeå University, Sweden.
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MeSH Terms
Baltic States
Bivalvia / chemistry
Environmental Monitoring*
Insecticides / analysis*
Marine Biology
Polychlorinated Biphenyls / analysis*
Tissue Distribution
Water Pollutants, Chemical / analysis*
Zooplankton / chemistry
Reg. No./Substance:
0/Insecticides; 0/Polychlorinated Biphenyls; 0/Water Pollutants, Chemical

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