Acoustic Deterrents
Underwater acoustic devices that emit targeted sonar pulses to reduce interactions between marine mammals and fishing gear or underwater structures.
Key Features:
✔️ Emits controlled acoustic pulses to alert and deter marine mammals
✔️ Reduces bycatch and accidental interactions with nets and fishing gear
✔️ Long-life battery enabling over one year of continuous operation
✔️ Rugged, impact-resistant, marine-ready housing for harsh environments
✔️ Operates effectively at depth beyond 250 m in underwater conditions
✔️ Compact design allows easy deployment on nets, trawl gear, or stationary structures
✔️ Supports commercial fishing, research, aquaculture, and conservation applications
✔️ Maintenance-free ultrasonic operation ensures reliable long-term performance
Acoustic Deterrents
The Acoustic Deterrents emit controlled 10 kHz sonar pulses designed to alert marine mammals to the presence of fishing gear, nets, and underwater structures. These devices transmit periodic acoustic signals detectable by cetaceans at ranges up to approximately 91 meters under typical conditions. The PINGER 10 kHz model features rugged impact-resistant housing rated for deployment beyond 250 meters depth. Battery systems provide continuous operation exceeding one year without maintenance or replacement, eliminating retrieval requirements during fishing seasons.
Compact dimensions allow attachment to gillnets, trawl gear, longlines, and stationary aquaculture infrastructure without interfering with normal fishing operations. The emission pattern creates an audible warning zone that encourages porpoises, dolphins, and other toothed whales to avoid entanglement areas. Corrosion-resistant materials withstand saltwater exposure and mechanical stress from net handling. Installation requires no external power connections or complex mounting systems. The device operates autonomously once deployed, requiring no operator intervention or monitoring.
Commercial fishing fleets install Acoustic Deterrents on gillnet floatlines to reduce harbor porpoise bycatch in compliance with marine mammal protection regulations. Naval underwater construction projects use these devices to keep marine mammals away from pile-driving operations and subsea equipment installations. Aquaculture facilities deploy deterrents around net pens to prevent seal predation while minimizing harm to approaching animals. Marine research vessels employ the technology during oceanographic equipment deployment to avoid cetacean interactions with towed sensor arrays.
Tactical Supply Pakistan supplies acoustic deterrent systems for organizations implementing marine mammal mitigation strategies in fishing and underwater operations.
Do acoustic deterrents habituate marine mammals, reducing effectiveness over time?
Studies show varied responses; rotation of deterrent locations and intermittent use patterns help maintain effectiveness by preventing animals from learning that signals pose no actual threat.
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