| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Cross | River (basin) | questionable | 13331 |
| Ethiopian | Zoogeographic realm | endemic | 27896 |
| Kienke | River (basin) | native | 81260 |
| Lobé | River (basin) | native | 52307 |
| Lokoundje | River (basin) | native | 81260 |
| Mbini | River (basin) | native | 81260 |
| Ntem | River (basin) | native | 27896 |
| Sanaga | River (basin) | native | 81260 |