A new scientific study from southeastern Brazil highlights both the challenges and opportunities associated with the sustainable coexistence of dolphins, whales, and traditional coastal fisheries.
The fishermen interviewed described the Guiana dolphin (Sotalia guianensis) as a “peaceful” and “calm” animal. At the same time, however, they reported increasing interactions between marine mammals, fishing gear, and humpback whales, which use the same coastal waters.
The study also identified key hotspots for bycatch and highlighted that fishermen possess remarkably detailed knowledge of the distribution, behavior, and seasonal habitat use of whales and dolphins. This local ecological knowledge (LEK) provides a valuable foundation for modern and effective conservation strategies.
The study was funded by YAQU PACHA and underscores the organization’s approach of combining scientific research with the active involvement of local communities. Participatory conservation projects and collaboration with local people are crucial building blocks for the long-term protection of endangered marine mammals.
Special thanks go to our long-standing supporters— Zoomarine Algarve, Duisburg Zoo, and Nuremberg Zoo—who provide ongoing support for this work.
Successful conservation happens when science and people work together to develop solutions.
Coexistence between cetaceans and artisanal fisheries in southeastern Brazil (PDF)