Ecosystem | Type | Status | Ref. |
---|---|---|---|
Alazeya River | River (basin) | native | |
Amguema River | River (basin) | native | |
Anadyr River | River (basin) | native | |
Indigirka River | River (basin) | native | |
Kolyma | River (basin) | native | |
Palearctic | Zoogeographic realm | endemic | 12323 |
Pechora | River (basin) | questionable | 26334 |