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

• Published in: Journal of Fish Biology
• Main Authors: Acou, Anthony, Robinet, Tony, Lance, Emilie, Gerard, Claudia, Mounaix, Béatrice, Brient, Luc, Le Rouzic, Bertrand, Feunteun, Eric
• Other Authors: Centre de Recherche sur les Ecosystèmes Littoraux Anthropisés (CRELA), Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de La Rochelle (ULR)-Centre National de la Recherche Scientifique (CNRS), Ecosystèmes, biodiversité, évolution Rennes (ECOBIO), Centre National de la Recherche Scientifique (CNRS)-Observatoire des Sciences de l'Univers de Rennes (OSUR)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2008
• Subjects: Anguilla anguilla; breeding potential; microcystin-LR; silver European eel; [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces; environment; [SDE.MCG.SIC]Environmental Sciences/Global Changes/domain_sde.mcg.sic
• Online Access: https://hal.archives-ouvertes.fr/hal-00168861; https://doi.org/10.1111/j.1095-8649.2007.01726.x

International audience Thirty migrating silver eels Anguilla anguilla 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: 281 224 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.