Sea turtles face multiple human-caused threats including bycatch, plastic ingestion, coastal development, and climate-driven nest failure that cause significant individual suffering at scale.
Sea turtle welfare encompasses both the chronic stress of anthropogenic threats and the acute suffering of specific injury events. Bycatch drowning involves a slow hypoxic death for air-breathing reptiles. Plastic ingestion causes progressive gut blockage that leads to starvation over weeks. Fibropapillomatosis, increasingly prevalent in degraded coastal waters, causes tumors that impair swimming, vision, and feeding — affected turtles may live for months in declining health before death. Each of these causes involves individual animal suffering at a scale that matches or exceeds many farmed species issues. Turtle excluder devices in shrimp trawls have proven highly effective at preventing bycatch and are legally required in some fisheries, but adoption remains incomplete globally. Nest protection programs directly benefit individual animals by reducing predation and disorientation mortality.