Sea turtle bycatch in fishing gear kills an estimated 50,000-100,000 turtles annually, but turtle excluder devices and circle hooks have demonstrated that bycatch reduction is achievable without significant catch impacts.
Sea turtles caught in fishing gear experience drowning stress over minutes to hours depending on gear type. Trawl-caught turtles may survive if they surface within minutes but suffer respiratory distress if trawl duration exceeds their breath-holding capacity. Longline-caught turtles that survive hooking may carry embedded hooks that cause chronic internal injury and infection. The scale of bycatch mortality represents an enormous welfare burden distributed across millions of individual turtles annually. TED regulations demonstrate that regulatory requirements achieve bycatch reduction more reliably than voluntary measures, providing the welfare benefit at the scale required.