River Dolphin Conservation and Welfare

River dolphins are among the most endangered cetaceans. Freshwater habitat degradation threatens their survival and creates chronic welfare challenges for individuals.

Key Facts

Six river dolphin species exist, including the Amazon river dolphin, Ganges river dolphin, and Irrawaddy dolphin.
The Yangtze river dolphin (baiji) was declared functionally extinct in 2006 — the first cetacean driven to extinction by humans.
Amazon river dolphins (botos) are classified as Endangered, threatened by mercury pollution from gold mining.
Entanglement in fishing nets is the leading direct cause of river dolphin mortality across all species.
River dolphins navigate and hunt using echolocation in turbid, low-visibility freshwater environments.

Welfare Considerations

River dolphin welfare is shaped by the progressive degradation of freshwater ecosystems they inhabit. Boat traffic noise interferes with echolocation and communication, causing navigational difficulties and social disruption. Mercury bioaccumulation from mining causes neurological damage, reproductive failure, and immune suppression. Entanglement in fishing nets causes drowning — a prolonged and distressing death. Boat strike injuries are common in heavily trafficked rivers. For individuals that survive these acute welfare events, chronic habitat degradation means persistent navigation difficulty, reduced prey availability, and social group disruption. Freshwater ecosystem restoration is the most comprehensive welfare intervention available.

What You Can Do

Support WWF and Whale and Dolphin Conservation Society programs working on river dolphin conservation.
Avoid gold and products from supply chains linked to illegal Amazon mining that pollutes dolphin habitat.
Advocate for river dolphin protected zones that limit fishing net deployment and boat traffic.
Support research into fishing gear modifications that reduce entanglement risk for river dolphins.
Engage with Brazil, India, and other range country governments on river dolphin protection policies.