title: Bioaccumulation in freshwater crabs. Endosulfan accumulation in different tissues of Zilchiopsis collastinensis P. (Decapoda: Trichodactylidae).
abstract: We examined the bioaccumulation of α- and β-endosulfan and endosulfan sulfate in tissues from the crab Zilchiopsis collastinensis. There was more endosulfan accumulated in the hepatopancreas (from <2 to 467.8 ng g(-1)) than in the gonads (from <2 to 52.1 ng g(-1)) or muscles (<2 ng g(-1)). The endosulfan concentrations in the hepatopancreas decreased over time and with the endosulfan dilution (p < 0.05). In the gonads there was little bioaccumulation, which did not vary over time (p > 0.05). The hepatopancreas is a dynamic organ that is able to depurate itself, whereas the gonads act as a sink for pesticides.
authors.affiliation: Instituto Nacional de Limnología (CONICET-UNL), Paraje El Pozo s/n, (3000), Santa Fe, Argentina. leonegro82@hotmail.com
authors.forename: Carlos Leandro
authors.initials: CL
authors.lastname: Negro
authors.forename: Lidia Eloísa
authors.initials: LE
authors.lastname: Senkman
authors.forename: Jaquelina
authors.initials: J
authors.lastname: Vierling
authors.forename: María Rosa
authors.initials: MR
authors.lastname: Repetti
authors.forename: Silvia Rosa
authors.initials: SR
authors.lastname: García
authors.forename: Pablo
authors.initials: P
authors.lastname: Collins
mesh_terms: D000818:Animals; D003386:Brachyura / Q000378:metabolism*; D004726:Endosulfan / Q000378:metabolism*; D005260:Female; D006066:Gonads / Q000378:metabolism; D043143:Hepatopancreas / Q000378:metabolism; D007306:Insecticides / Q000378:metabolism*; D008297:Male; D009132:Muscles / Q000378:metabolism; D014874:Water Pollutants, Chemical / Q000378:metabolism*
chemical_list: D007306:Insecticides; D014874:Water Pollutants, Chemical; D004726:Endosulfan