Document Detail


Potential biomarkers of crude oil exposure in the gastropod mollusc, Austrocochlea porcata: laboratory and manipulative field studies.
MedLine Citation:
PMID:  12927486     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Surveys conducted after a crude oil spill indicated that the intertidal gastropod mollusc Austrocochlea porcata may be highly sensitive to the pollutant, and therefore also valuable as a biomonitoring organism. Toxicity tests conducted in the laboratory and field established cause-effect for A. porcata mortalities on exposure to environmentally relevant concentrations of crude oil constituents. Glutathione antioxidant system components (glutathione and glutathione peroxidase, GPx) and oxidative damage (lipid peroxidation) in A. porcata were measured to determine whether any of these biochemical parameters showed potential as biomarkers of sublethal oil exposure. GPx was the most promising candidate for field-based biomarker studies after showing a dose-dependent induction to a crude oil water accommodated fraction (WAF) in laboratory assays. However, subsequent manipulative field experimentation indicated that the GPx response was not sufficiently sensitive and not necessarily predictive of population level effects when measured in situ.
Authors:
D J Reid; G R MacFarlane
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Environmental pollution (Barking, Essex : 1987)     Volume:  126     ISSN:  0269-7491     ISO Abbreviation:  Environ. Pollut.     Publication Date:  2003  
Date Detail:
Created Date:  2003-08-20     Completed Date:  2003-12-09     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8804476     Medline TA:  Environ Pollut     Country:  England    
Other Details:
Languages:  eng     Pagination:  147-55     Citation Subset:  IM    
Affiliation:
School of Environmental and Life Sciences, The University of Newcastle, Callaghan, NSW 2308, Australia.
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MeSH Terms
Descriptor/Qualifier:
Animals
Biological Markers / analysis
Environmental Monitoring / methods*
Glutathione / analysis
Glutathione Peroxidase / analysis
Lipid Peroxidation
Mollusca / chemistry,  drug effects*
Petroleum / toxicity*
Seawater*
Sensitivity and Specificity
Water Pollution, Chemical*
Chemical
Reg. No./Substance:
0/Biological Markers; 0/Petroleum; 70-18-8/Glutathione; EC 1.11.1.9/Glutathione Peroxidase

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


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