Wels catfish (Silurus glanis) is the largest freshwater fish in Europe. Over the past 50 years, through deliberate or accidental introduction, this species – formerly native to eastern and central parts of the continent (particularly the Danube) – has...
The Dordogne basin is part of the last river-estuarine system that still supports all 8 species of migratory amphihaline fish in Europe, with the most famous being the Atlantic salmon (Salmo salar), the Shad (Alosa alosa), the Sea lamprey (P marinus), the European...
