![]() She adds, “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.” These aquatic mammals are also at risk from intentional killing and accidental capture, known as bycatch. ![]() Campbell elaborates that fishing practices can lead to a significant reduction in dolphin prey. Elizabeth Campbell, a key researcher from the Centre for Ecology and Conservation at Exeter’s Penryn Campus in Cornwall, warns, “It’s clear that the Amazon river dolphin is facing increasing threats from humans.”ĭr. Struggling for survival against human activitiesĭr. Moreover, many of these endangered Amazon river dolphins inhabit regions much closer to the proposed development sites, compared to the seven males and one female dolphins tagged in this research. The effects of dam construction and dredging can impact long stretches of river habitats. The nearest intended dredging site is only 78 miles away.Įven though these distances seem substantial, one should note that a dolphin’s range can cover more than 30 miles. In addition, the researchers located the dolphins an average of 156 miles away from the nearest proposed dam. The data revealed that a staggering 89% of the dolphins’ home range living area overlapped with fishing zones. They also measured their proximity to various fishing regions, as well as proposed dam and dredging sites. The main focus of the study was to map out the dolphins’ movement patterns. Tracking the movements of Amazon river dolphins In a collaborative effort between the University of Exeter and Peruvian conservation organization Pro Delphinus, researchers tracked eight Amazon river dolphins in the Peruvian Amazon via satellite tags.
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