FISHING
TECHNOLOGY

DOLPHIN PINGERS: OPERATIONAL EFFICIENCY AND SUSTAINABILITY

In professional fishing, dolphin pingers have become a key solution for reducing cetacean bycatch and minimising the impact on animal welfare. For over twenty years, STM Products has been developing acoustic deterrents specifically designed for the fishing industry, in collaboration with marine and environmental research institutions, to support more responsible resource management.

PROTECTING DOLPHINS AND PRESERVING FISHING ACTIVITIES

STM Products pingers interact with dolphins’ echolocation system (sonar), emitting randomised ultrasound at varying frequencies that prompt them to move away from nets, without harming either the marine mammals or the fish, which are entirely insensitive to these frequencies. The result: fewer accidental catches, reduced risk of injury to dolphins, and less damage to nets, gear and overall catch.

STM technology for the marine sector

STM pingers combine 32-bit microprocessor electronics, randomised ultrasonic emissions and high-endurance rechargeable batteries, delivering a reliable system built for professional use at sea. Robust hardware, advanced software and certified build quality work together to ensure consistent performance over time and full compliance with international standards.

32-BIT ELECTRONICS

32-bit microprocessor with automatic power-on and low-battery

FREQUENCY RANGE

Random ultrasound from 5 to 500 kHz to prevent habituation

DEPTH AND COVERAGE

Operating depth from 10 to 400 m, horizontal coverage radius over 250 m

DURABILITY AND QUALITY

Sealed internal NiMH batteries, rechargeable for up to 1,000 cycles

STM-CERTIFIED EXCELLENCE

Made in Italy and tested to ISO 9001:2015 standard

A COMPLETE RANGE FOR EVERY TYPE OF FISHING

The Fishing Technology line comes in two distinct types, each designed to meet different operational requirements.

Passive deterrents
(always-on pingers)

Dolphin pingers that activate on water contact, designed to reduce bycatch along nets and longlines and limit gear damage in areas with high cetacean activity.

Interactive deterrents
(selective pingers)

Dolphin pingers with a built-in listening function, emitting ultrasound only when dolphins are detected minimising acoustic pollution, extending battery life and maintaining high effectiveness.

TALK TO AN STM PRODUCTS EXPERT

Not sure which solution is right for you? We’ll help you configure the ideal system for your operation.

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