Multi-decadal improvements in the ecological quality of European rivers are not consistently reflected in biodiversity metrics. - Sinclair JS; Welti EAR; Altermatt F; Álvarez-Cabria M; Aroviita J; Baker NJ; Barešová L; Barquín J; Bonacina L; Bonada N; Cañedo-Argüelles M; Csabai Z; et al. (Nature ecology & evolution, 2024)