Sea Turtle Bycatch Welfare and Mitigation

The welfare impact of sea turtle bycatch in commercial fisheries and practical mitigation strategies.

Key Facts

All seven sea turtle species are threatened or endangered, with bycatch being a leading cause of mortality
Longline fisheries, trawls, and gill nets all incidentally capture sea turtles who cannot escape in time
Turtles caught in trawl nets face drowning within minutes if they cannot surface for air
Circle hooks in longline fisheries reduce sea turtle bycatch by 90% compared to J-hooks without significantly reducing target catch
Sea turtle excluder devices (TEDs) in trawl nets are legally required in some jurisdictions and highly effective

Welfare Considerations

Sea turtle bycatch causes both welfare harm to individual animals and population-level conservation damage to critically threatened species. The welfare experience of a bycatch event — stress, restraint, potential drowning, or hook injury — is severe, and many turtles that are released alive die subsequently from bycatch injuries. Mitigation is technically well-understood: circle hooks, TEDs, time-area closures, and bycatch observer programs all effectively reduce turtle capture rates. The barrier to implementation is primarily economic and regulatory. Consumer demand for sustainably-sourced seafood creates incentives for fisheries to adopt bycatch mitigation practices, making purchasing choices a meaningful lever for change.

What You Can Do

Choose seafood from fisheries certified to use sea turtle bycatch mitigation gear and practices
Support organizations working on sea turtle bycatch policy at national and international levels
Advocate for mandatory TED requirements in all trawl fisheries operating in sea turtle habitat
Report sea turtle strandings to local wildlife authorities — many injured turtles can be rehabilitated
Donate to sea turtle rehabilitation centers that treat bycatch-injured animals