| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Amur | River (basin) | native | 26334 |
| Columbia | River (basin) | introduced | 559 |
| Da River | River (basin) | native | 89724 |
| Han | River (basin) | native | 58345 |
| Kum | River (basin) | native | 58345 |
| Oriental | Zoogeographic realm | native | 559 |
| Ormoc Bay | Sea/Bay/Gulf | native | 45140 |
| Pacific Ocean | Sea/Bay/Gulf | questionable | 35840 |
| Palearctic | Zoogeographic realm | native | 26334 |
| Sakhalin Island | River (basin) | native | 37812 |
| Youngsan | River (basin) | native | 58345 |