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Evidence of silver eels contamination by microcystin-LR at the onset of their seaward migration: what consequences for breeding potential?

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Thirty migrating silver eels Anguillaanguilla were collected in a river system where algal blooms occurred yearly. Fifty per cent of eel livers were contaminated by microcystin-LR (mean ±s.d. toxin level: 28·1 ± 22·4 ng g−1). Contaminated silver (v. healthy) eels had lower fish condition. Consequences of this impact for the breeding potential of these migrating eels are discussed.

Keywords: Anguilla anguilla; breeding potential; microcystin-LR; silver European eel

Document Type: Research Article


Affiliations: 1: Centre de Recherche sur les Ecosystèmes Littoraux Anthropisés, UMR 6217 CNRS-Université de la Rochelle, rue Enrico Fermi, 17000 La Rochelle, France 2: UMR ECOBIO 6553 CNRS-Université de Rennes 1, Campus de Beaulieu, Bat. 14, 35042 Rennes cedex, France 3: Fish Pass, Bureau Expert Gestion Piscicole, 8 allée de Guerlédan, 35135 Chantepie, France

Publication date: February 1, 2008


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