Acoustic deterrent devices:Reducing cetacean interactions across multiple fisheries

These solutions are developed by

Acoustic deterrent devices, commonly known as pingers, are used to reduce interactions between fishing gears and echolocating cetaceans, such as dolphins and porpoises. Within the project, acoustic deterrents are being tested and adapted for different fisheries, as both species and gear interactions are varying widely.

We focus on evaluating the real-world performance of pingers and complementary measures, such as net lighting, under commercial fishing conditions. All solutions are developed in close collaboration with fishers to ensure they are effective, practical, and acceptable for day-to-day operations.

Purpose and impact

By generating new data and new evidence from trials onboard scientific and commercial vessels, MarineGuardian aims to:

  • prevent cetacean bycatch
  • ease fishers work
  • improve the marine biodiversity

Fisheries addressed

The MarineGuardian acoustic deterrent portfolio covers three key fisheries and interacting species.

For more details on each solution, please click on the pictures below.

Acoustic deterrent device for gillnet fisheries – Bycatch of common dolphin and rare Iberian porpoise.

Acoustic deterrent device for beach seine fisheries – Bycatch of Iberian porpoises (rare) and common dolphins (frequent).

Acoustic deterrent device for purse seine fisheries – Bycatch of common and Bottlenose dolphins.