Journal
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
Volume 20, Issue 4, Pages 2616-2631Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s11356-012-1156-x
Keywords
Carcinus maenas; Bizerta Lagoon; Biochemical biomarkers; Metals; Hydrocarbons; Integrated biomarker response
Categories
Funding
- Ministry of Scientific Research and Technology
- University of Sousse, Tunisia (Research Unit of Biochemistry and Environmental Toxicology) [UR 04AGR05]
- Institution de la Recherche et de l'Enseignement Superieur Agricole, (IRESA
- Tunisia)
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The biochemical effects in Carcinus maenas and contamination levels in seawater and sediments of Bizerta Lagoon (northeast of Tunisia) were investigated. The levels of metals and hydrocarbons were higher in seawater and sediments in Menzel Bourguiba and Cimentery in February and July than in the other sampling sites. Differences among sites for glutathione S-transferase, catalase, acetylcholinesterase activities, and the content of lipid peroxidation and metallothioneins in two important organs which accumulated contaminants (the gills and the digestive gland) of the C. maenas were found and possibly related to differences in metal and hydrocarbon levels. The seasonal variation of biomarkers was possibly associated with chemical contamination and also with the high fluctuation of physico-chemical characteristics of the sites. The integrated biomarker response values found in the five sites is in good agreement with hydrocarbon and trace metal concentrations detected in the water and sediments of the stressful places where crabs are living.
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