The Danube barbel (Barbus balcanicus) is a species of freshwater fish widespread in southeastern Europe. It is difficult to diagnose from e.g. Barbus carpathicus and Barbus petenyi in the field.
The Danube barbel (Barbus balcanicus) is a species of freshwater fish widespread in southeastern Europe. It is difficult to diagnose from e.g. Barbus carpathicus and Barbus petenyi in the field.
