| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Chiloango | River (basin) | native | 81639 |
| Cross | River (basin) | native | 13331 |
| Ethiopian | Zoogeographic realm | endemic | 27896 |
| Kienke | River (basin) | native | 81639 |
| Mungo | River (basin) | native | 81639 |
| Ntem | River (basin) | native | 81639 |
| Nyong | River (basin) | native | 81639 |
| Ogowe | River (basin) | native | 81639 |
| Sanaga | River (basin) | native | 81639 |