Freshwater Dolphin Conservation and Welfare Threats

Freshwater dolphins in Asia and South America face severe welfare threats from entanglement, pollution, habitat loss and vessel strikes in heavily modified river systems.

Key Facts

The Yangtze river dolphin baiji was declared functionally extinct in 2007
The Amazon river dolphin boto faces increasing threats from fishing entanglement and mercury pollution
South Asian river dolphins including the Ganges dolphin are critically endangered
Gill net entanglement is the primary direct mortality cause for most freshwater dolphin species
Mercury bioaccumulation from artisanal gold mining pollutes dolphin habitat and food sources
Vessel traffic and dam construction fragment freshwater dolphin populations

Welfare Considerations

Freshwater dolphin welfare suffers from both acute threats including entanglement and chronic threats from pollution and habitat degradation. Entangled dolphins drown after a prolonged struggle that represents significant suffering. Mercury poisoning from mining runoff causes neurological damage and reproductive failure in affected populations. Dam construction fragments populations and reduces prey fish availability, causing chronic nutritional stress. Conservation of freshwater dolphins requires addressing these multiple threat vectors simultaneously, often requiring engagement across multiple government departments and sectors including fisheries, mining and infrastructure.

What You Can Do

Support freshwater dolphin conservation organisations working in range countries
Advocate for gill net restrictions and alternatives in critical freshwater dolphin habitat
Support artisanal gold mining regulation to reduce mercury pollution
Follow freshwater dolphin population monitoring and support research funding