Helping River Dolphin Populations Recover - One Ping at a Time

Elizabeth Campbell

Other projects

30 May 2013

Distribution and Abundance of Boto, Inia geoffrensis and Tucuxi, Sotalia fluviatilis in Yarinacocha Lagoon, Peru

29 Mar 2016

Developing a Community-Based Tourism Program Focused on the Ecosystem Services of the Yarina Lagoon in the Peruvian Amazon

Through a controlled in-situ trial, this study will assess the effectiveness of an innovative package of acoustic alarms (pingers) and recorders (F-pods) at reducing the bycatch of river dolphins by net fisheries in the Peru Amazon. We will monitor dolphin activity and raise river dolphin awareness in five ports of the Peruvian Amazon.


This project focuses on river dolphin bycatch, specifically on estimating its frequency while working to mitigate its occurrence in the Peruvian Amazon. The use of acoustic alarms (pingers) has been shown to reduce bycatch rates of marine cetaceans.

This project proposes to build upon that progress and apply an innovative version of this technology to the urgent problem of river dolphin bycatch in Amazon net fisheries. The study is important because it will be the first of its kind in Peru to quantify river dolphin interactions with Amazon artisanal fisheries. More generally, it is valuable because it will draw attention to aquatic fauna interactions with the often-overlooked small-scale freshwater fisheries and will show that these fisheries can be effectively monitored.

We will also study river dolphins acoustically using F-Pods (portable acoustic data loggers). This will generate ethological information on both river dolphin species in addition to generating a species classification system that can be used in this and future research.

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