Which fish and other aquatic animals live in the Congo River?

The Congo River supports a diverse array of aquatic life, with its waters hosting numerous species of fish. More than 230 species have been identified in Malebo Pool and its surrounding waters alone. Specific inhabitants include:1

• Fish: Lungfish are found in riverine swamps, where they survive dry periods by burying themselves in mucus cocoons. In wooded marshlands, black catfish are also present, having adapted their coloration to the dark, tea-colored water.1
• Reptiles: The river contains various reptiles, most notably crocodiles. Semiaquatic tortoises and several species of water snakes also inhabit the system.1
• Aquatic Mammals: These are relatively rare but include the hippopotamus, two species of otters, and the manatee. The manatee, which lives entirely in the water, has been officially identified on the Sangha River tributary.1

The river's ecological diversity is distinct from the surrounding forests and savannas, forming a unique environment for these species.1