Marine Mammal Bycatch - Current Technologies

Current technologies to reduce marine mammal bycatch in commercial fisheries, including pingers, weak links, and modified gear.

Key Facts

An estimated 300,000 cetaceans die in fishing gear bycatch annually, the leading human cause of cetacean mortality
Acoustic deterrent devices (pingers) reduce porpoise bycatch by 70-90% in drift net fisheries
Rope-less fishing gear using on-demand buoy systems eliminates vertical lines that entangle whales and sea turtles
Circle hooks reduce sea turtle bycatch by 80% compared to J-hooks in longline fisheries
UK Harbour porpoise bycatch has been estimated at over 1,000 animals annually in gill net fisheries

Welfare Considerations

This topic carries significant welfare implications for the animals involved. Evidence-based management approaches and appropriate veterinary care can substantially improve outcomes.

What You Can Do

Consult your veterinarian or a specialist for guidance specific to your situation
Follow evidence-based management protocols and best practice guidelines
Monitor animals closely and intervene promptly when welfare concerns arise
Stay updated with current research, legislation, and industry standards
Share knowledge with others to improve welfare outcomes across the sector