Health indicators and contaminant levels of a critically endangered species in the Gironde estuary, the European sturgeon
Langue
EN
Article de revue
Ce document a été publié dans
Environmental Science and Pollution Research. 2020, vol. 27, n° 4, p. 3726-3745
Résumé en anglais
The European sturgeon, Acipenser sturio, is a highly endangered species that almost disappeared in the last decades. Thanks to yearly restocking of the population, this species is still found in the Gironde estuary (France), ...Lire la suite >
The European sturgeon, Acipenser sturio, is a highly endangered species that almost disappeared in the last decades. Thanks to yearly restocking of the population, this species is still found in the Gironde estuary (France), where juveniles grow during several years before leaving to the ocean. The aims of this study were to evaluate the pressure exerted on these fish by known organic and inorganic contaminants during their stay at the Gironde estuary, and to get information on the fish's health in this context. Monthly captures over the year 2014 provided 87 fish from the cohorts 2012 and 2013 mainly, and from cohorts 2008, 2009, and 2011, all fish born in hatchery. We report the very first analyses of contaminant levels and of biological markers measured in the blood of these fish.< Réduire
Mots clés en anglais
Estuary
Gene transcription
Genotoxicity
Inorganic and organic contaminants
Sex steroid
Sturgeon.
Project ANR
Vulnérabilité et adaptabilité de la dernière population d'esturgeon européen (Acipenser sturio) aux facteurs de stress environnementaux : température, oxygène et polluants. - ANR-13-CESA-0018