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