| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Benue | River (basin) | native | 57223 |
| Chad | River (basin) | native | 57223 |
| Densu | River (basin) | native | 57223 |
| Ethiopian | Zoogeographic realm | endemic | 3202 |
| Gambia | River (basin) | native | 57223 |
| Inner Niger Delta | River (basin) | native | 57223 |
| Kainji | Lake | native | 28265 |
| Kwa-Ibo | River (basin) | native | 57223 |
| Lower Niger | River (basin) | native | 57223 |
| Middle Niger | River (basin) | native | 57223 |
| Niger | River (basin) | native | 57223 |
| Niger Delta | River (basin) | native | 57223 |
| Senegal | River (basin) | native | 57223 |
| Sokoto | River (basin) | native | 57223 |
| Upper Niger | River (basin) | native | 57223 |
| Volta | River (basin) | native | 57223 |