Document Detail


Levels of organochlorine compounds in spotted dolphins from the Coiba archipelago, Panama.
MedLine Citation:
PMID:  14599513     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Blubber and skin samples from 63 spotted dolphins (Stenella attenuata) (18 males, 40 females and 5 of unknown sex) were collected by biopsy techniques in the waters of the Coiba archipelago. Blubber was analyzed for organochlorine compounds and skin for gender determination. Mean levels of HCB (hexachlorobenzene), tPCB (polychlorinated biphenyls) and tDDT (dichlorodiphenyltrichloroethane) were 0.064, 2.30 and 6.4 mgkg(-1), respectively. These levels are low and are not considered to represent a threat to the S. attenuata population. No significant differences either in concentrations of HCB, tPCB and tDDT or in PCB profiles were observed between males and females. The ratio tDDT/tPCB was 2.69, indicating predominantly agrarian versus industrial activities in the area. The ratio ppDDE/tDDT was 0.83, a high figure that suggests both a local reduction of DDT inputs and a high rate of DDT degradation. Significant quantitative and qualitative differences were observed between two schools, suggesting intra-population heterogeneity in organochlorine exposure possibly due to demographic segregation.
Authors:
A Borrell; G Cantos; T Pastor; A Aguilar
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Chemosphere     Volume:  54     ISSN:  0045-6535     ISO Abbreviation:  Chemosphere     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2003-11-05     Completed Date:  2004-02-19     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0320657     Medline TA:  Chemosphere     Country:  England    
Other Details:
Languages:  eng     Pagination:  669-77     Citation Subset:  IM    
Affiliation:
Department of Animal Biology, Parc Científic de Barcelona, GRUMM, University of Barcelona, c/Baldiri i Reixac 4-6, Barcelona 08071, Spain. assump@bio.ub.es
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MeSH Terms
Descriptor/Qualifier:
Adipocytes / chemistry*
Animals
Dolphins / metabolism*
Environmental Exposure*
Female
Hydrocarbons, Chlorinated*
Insecticides / analysis*
Male
Panama
Population Dynamics
Skin / chemistry*
Water Pollutants, Chemical / analysis*
Chemical
Reg. No./Substance:
0/Hydrocarbons, Chlorinated; 0/Insecticides; 0/Water Pollutants, Chemical

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


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