Ecosystem | Type | Status | Ref. |
---|---|---|---|
Balkan river drainages and lakes | River (basin) | native | 59043 |
Danube | River (basin) | native | 59043 |
Lower Danube | River (basin) | native | 59043 |
Palearctic | Zoogeographic realm | endemic | 12255 |
Struma River | River (basin) | native | 59043 |