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Ecotoxicology

Title:		Accumulation of lipophilic microcontaminants and biochemical responses in eels from the Camargue Biosphere Reserve
Author(s):		Roche H; Buet A; Ramade F;
Address:		"University of Paris-Sud XI, Ecology Systematic and Evolution, ESE UPRESA 8079, Ecology and Zoology, Orsay, France. helene.roche@ibaic.u-psud.fr"
Journal Title:		Ecotoxicology
Year:		2002
Volume:		11
Issue:		3
Page Number:		155 - 164
DOI:		10.1023/a:1015418714492
ISSN/ISBN:		0963-9292 (Print) 0963-9292 (Linking)
Abstract:		"We assessed the impacts of persistent organic micropollutants on aquatic trophic webs in brackish and freshwater communities in the Camargue National Nature Reserve (NNR). We found that organochlorine compounds affect fish communities, particularly those of the common eel (Anguilla anguilla). The aims of this study were (1) to determine the amount of lipophilic xenobiotics such as polycyclic aromatic hydrocarbons (PAHs), which are probably of atmospheric origin, and two organochlorines (OC), lindane and dieldrin, which are from irrigation waters, in liver and muscle (2) to define in situ biomarkers and (3) to identify the mode by which fish from 'unpolluted' areas become contaminated. All of the species were contaminated with low, but fluctuating quantities of PAHs and OCs, regardless of the sampling season. Lindane and dieldrin were always detected and naphtalene was the most abundant hydrocarbon. The OC and PAH content was rarely correlated with the lipid content in storage tissues and their concentrations in the lipidic fractions (neutral and polar) varied greatly. We found a number of correlations between persistent organic pollutant (POP) tissue concentrations and the activities of enzymatic membrane markers. For example, there is a relationship between the concentrations of the most volatile PAHs and the activity of muscle acetylcholinesterase (AChE) and between the concentration of benzo-PAH and the activities of ATPases in the gills and/or muscle"
Keywords:		"Anguilla/*metabolism Animals Dieldrin/*metabolism Environmental Monitoring France Fresh Water Hexachlorocyclohexane/*metabolism Lipid Metabolism Liver/metabolism Muscle, Skeletal/metabolism Naphthalenes/*metabolism Polycyclic Aromatic Hydrocarbons/*metabo;"
Notes:		"MedlineRoche, Helene Buet, Astrid Ramade, Francois eng Research Support, Non-U.S. Gov't 2002/07/03 Ecotoxicology. 2002 Jun; 11(3):155-64. doi: 10.1023/a:1015418714492"