Document Detail


The role of burrowing beds and burrows of the SW Atlantic intertidal crab Chasmagnathus granulata in trapping organochlorine pesticides.
MedLine Citation:
PMID:  14972575     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The effect of crab beds and bioturbation activity of the SW Atlantic intertidal crab Chasmagnathus granulata on the organochlorine pesticide (OCP) concentrations in Bahía Blanca estuary, Argentina were studied. Total OCP concentration was significantly lower inside than outside the crab burrows. Nevertheless, the concentrations from outside the crab beds were lower than from outside crab burrows, which indicated that crab beds act as sinks of sediment-bound OCP due to the bioturbation activities of the crabs. The same distribution patterns were found in all sediments as well as in crabs, being cyclodienes>HCHs>DDTs, although large amounts of metabolites rather than the respective parental were found in the organism showing the capacity of C. granulata for metabolising parental compounds. These more water-soluble compounds are excreted by the faeces and finally removed by tidal flushing to the sea. Our results suggest that crabs when present play a role in the distribution of sediment-bound OCP and the crab beds are modifiers of the dynamic of organic pollutants in estuarine areas.
Authors:
Mirta L Menone; Karina S B Miglioranza; Oscar Iribarne; Julia E Aizpún de Moreno; Víctor J Moreno
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Marine pollution bulletin     Volume:  48     ISSN:  0025-326X     ISO Abbreviation:  Mar. Pollut. Bull.     Publication Date:  2004 Feb 
Date Detail:
Created Date:  2004-02-19     Completed Date:  2004-06-08     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0260231     Medline TA:  Mar Pollut Bull     Country:  England    
Other Details:
Languages:  eng     Pagination:  240-7     Citation Subset:  IM    
Affiliation:
Laboratorio de Ecotoxicología, Departamento de Ciencias Marinas (FCEyN), Universidad Nacional de Mar del Plata. Funes 3350, 7600 Mar del Plata, Argentina. lujanm@mpd.edu.ar
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MeSH Terms
Descriptor/Qualifier:
Animals
Biotransformation
Brachyura*
Environmental Monitoring
Feces
Geologic Sediments / chemistry*
Hydrocarbons, Chlorinated*
Insecticides / analysis*,  chemistry,  pharmacokinetics*
Movement*
Tissue Distribution
Water Pollutants, Chemical / analysis*,  pharmacokinetics*
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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