| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Balkan river drainages and lakes | River (basin) | native | 59043 |
| Danube | River (basin) | native | 59043 |
| Drava River | River (basin) | native | 59043 |
| Herault | River (basin) | native | 59043 |
| Palearctic | Zoogeographic realm | endemic | 556 |
| Rhine | River (basin) | native | 59043 |
| Rhône | River (basin) | native | 59043 |
| Soca | River (basin) | native | 59043 |
| Tisza | River (basin) | native | 59043 |
| Upper Danube | River (basin) | native | 59043 |
| Var | River (basin) | native | 59043 |