Bycatch has been known to be a threat to these dolphins for the last 30 years, but there’s no real data on how many dolphins are caught per year.” “Fishing can deplete populations of the dolphins’ prey, and dolphins are also at risk from intentional killing and bycatch (accidental catching). Elizabeth Campbell, of the Centre for Ecology and Conservation on Exeter’s Penryn Campus in Cornwall. “It’s clear that the Amazon river dolphin is facing increasing threats from humans,” said Dr. The research was carried out by the University of Exeter and Peruvian conservation organization Pro Delphinus. While these are significant distances, the dolphins’ ranges spanned over 50km on average, and dams and dredging can affect large stretches of river habitats.Īdditionally, many Amazon river dolphins-already an endangered species-live closer to the proposed sites than the seven males and one female tagged in this study. On average, 89 percent of the dolphins’ home “range” (the area they live in) was used for fishing.ĭolphins were found to be an average of 252km from the nearest proposed dam and 125km from the nearest proposed dredging site. ![]() ![]() By subscribing, you agree to receive email related to Lab Manager content and products.
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