| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Benue | River (basin) | native | 57223 |
| Ethiopian | Zoogeographic realm | endemic | 3202 |
| Lower Niger | River (basin) | native | 31256 |
| Mono | River (basin) | native | 57223 |
| Niger | River (basin) | native | 57223 |
| Niger Delta | River (basin) | native | 57223 |
| Ogun | River (basin) | native | 57223 |
| Osse | River (basin) | native | 57223 |
| Ouémé | River (basin) | native | 57223 |