Wild Boto Pink River Dolphin Welfare in the Amazon

Welfare challenges for boto river dolphins in the Amazon basin from fishing conflict, pollution, and habitat loss.

Key Facts

Botos are the largest river dolphins in the world — found throughout the Amazon and Orinoco river systems
They are classified as Endangered following population declines from fishing conflict and contamination
Mercury from illegal gold mining bioaccumulates in boto tissue reaching levels that cause neurological damage
Boto are deliberately killed by fishers who consider them competition and use them as bait for catfish
Climate change is altering Amazon flood cycles that determine boto food distribution and movement patterns

Welfare Considerations

Boto welfare in the Amazon reflects the convergence of multiple human pressures on river ecosystems. Deliberate killing by fishers — who use boto as bait — causes acute suffering on a scale that has driven measurable population decline. Mercury contamination from illegal gold mining causes neurological damage at sublethal concentrations that affect behavior and reproductive success. Altered flood cycles from climate change disrupt the seasonal fish availability that boto depend on for food. Each of these threats has different drivers and requires different interventions, but collectively they represent the compounding welfare burden facing a species in a rapidly changing river landscape.

What You Can Do

Support Instituto Boto and WWF Amazon boto conservation and monitoring programs
Advocate against illegal Amazon gold mining through consumer choices and political engagement
Donate to river pollution monitoring and mercury testing programs in Amazon tributary communities
Learn about boto ecology and share information about this remarkable pink dolphin species