| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Congo | River (basin) | questionable | 51193 |
| Ethiopian | Zoogeographic realm | endemic | 3203 |
| Lower Congo | River (basin) | questionable | 88779 |
| Middle Congo | River (basin) | questionable | 46861 |
| Ogowe | River (basin) | native | 116799 |
| Sangha | River (basin) | questionable | 1878 |