Biosphere Reserve of Camargue, France)
Environmental Pollution 157 (2009) 2493–2506 Contents lists available at ScienceDirect Environmental Pollution journal homepage: www.elsevier.com/locate/envpol Organochlorines in the Vaccare`s Lagoon trophic web (Biosphere Reserve of Camargue, France) H. Roche a,*, Y. Vollaire a, A. Persic a, A. Buet a, C. Oliveira-Ribeiro b, E. Coulet c, D. Banas a, F. Ramade a a Ecologie, Syste´matique et Evolution, UMR8079 CNRS, Universite´ Paris-Sud, AgroParisTech, F91405 Orsay Cedex, France b Departamento de Biologia Celular, Universidade Federal do Parana´, Caixa Postal 19031, CEP: 81.531-990, Curitiba, PR, Brazil c Nature Reserve of Camargue, La Capelie`re, F13200 Arles, France The Vaccare`s Lagoon trophic web biomagnifies organochlorine pollutants. article info abstract Article history: During a decade (1996–2006), ecotoxicological studies were carried out in biota of the Vaccare`s Lagoon Received 12 September 2008 (Biosphere Reserve in Rhone Delta, France). A multicontamination was shown at all levels of the trophic Received in revised form web due to a direct bioconcentration of chemical from the medium combined with a food transfer. Here, 27 February 2009 the pollutants investigated were organochlorines, among which many compounds banned or in the Accepted 6 March 2009 course of prohibition (or restriction) (PCB, lindane, pp0-DDE, dieldrin, aldrin, heptachlor, endosulfan.) and some substances likely still used in the Rhone River basin (diuron, fipronil). The results confirmed Keywords: the ubiquity of contamination. It proves to be chronic, variable and tends to regress; however contam- Organochlorines Aquatic trophic web ination levels depend on the trophic compartment. A biomagnification process was showed. Biosphere Reserve of Camargue A comparison of investigation methods used in other Mediterranean wetlands provides basis of Biomagnification discussion, and demonstrates the urgent need of modelling to assess the ecotoxicological risk in order to improve the management of such protected areas.
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