Sea Turtle Bycatch Welfare Impacts

Welfare and conservation impacts of sea turtle bycatch in commercial fisheries, examining drowning risks, physical injury, entanglement trauma, and the turtle excluder devices that can prevent capture.

Key Facts

All seven sea turtle species are listed as threatened or endangered, with bycatch being a primary mortality driver
Sea turtles must breathe air and can drown in minutes if entangled in nets without opportunity to surface
An estimated 250,000 sea turtles are accidentally captured and approximately 300,000 die annually as bycatch
Turtle Excluder Devices (TEDs) are mandatory in US shrimp trawls and reduce turtle bycatch by over 97%
Longline fisheries cause significant sea turtle bycatch through hook ingestion and line entanglement
Circle hooks instead of J-hooks in longline fisheries reduce sea turtle bycatch by 60-90% in research studies
Post-release survival of captured sea turtles depends on injury extent, capture duration, and handling quality

Welfare Considerations

Sea turtle bycatch inflicts both lethal and sublethal welfare harm on animals that have survived over 100 million years of evolution only to face extinction from human fishing practices. Drowning in fishing gear is among the most welfare-concerning deaths — an extended struggle against restraint followed by oxygen deprivation. Sea turtles that survive capture often carry lasting injuries from hooks, lines, and net entanglement that affect long-term welfare and survival. The remarkable effectiveness of TEDs demonstrates that welfare-compatible fishing is technically achievable in the fisheries causing the most bycatch. The challenge is expanding TED adoption and other mitigation measures globally, including in the developing country fisheries that account for much of the bycatch problem.

What You Can Do

Choose seafood certified under schemes requiring bycatch reduction measures including turtle excluder devices
Support MSC certification and other fishery standards that include sea turtle bycatch limits
Advocate for international adoption of turtle excluder device requirements in shrimp trawl fisheries
Donate to sea turtle conservation organizations working on bycatch reduction and rehabilitation of injured turtles
Report suspected illegal sea turtle captures or products to relevant wildlife authorities
Learn about sea turtle biology and migration to understand the conservation and welfare stakes of bycatch reduction