| Ecosystem | Type | Status | Ref. |
|---|---|---|---|
| Congo | River (basin) | endemic | 1877 |
| Ethiopian | Zoogeographic realm | endemic | 3203 |
| Itimbiri | River (basin) | native | 106290 |
| Mai-Ndombe | Lake | native | 1877 |
| Marine Lower Congo | River (basin) | questionable | 41594 |
| Middle Congo | River (basin) | native | 4910 |
| Sangha | River (basin) | native | 46901 |
| Tumba | Lake | native | 41580 |