The biological condition of French rivers has not improved over the last seventeen years according to the national Fish-Based-Index (FBI)Pascal Irz, Thibault Vigneron, Nicolas Poulet, Benoît Richard and Thierry OberdorffKnowl. Manag. Aquat. Ecosyst., 425 (2024) 11DOI: https://doi.org/10.1051/kmae/2024007
