All seven marine turtle species are threatened by fishing bycatch, plastic pollution, climate change, and nesting habitat loss. Welfare interventions span ocean, coastal, and beach management.
Marine turtle welfare encompasses both wild population threats and individual animal suffering. Bycatch causes acute drowning in individuals unable to surface; those surviving longline capture experience severe physical trauma and physiological stress from extended entanglement. Plastic ingestion is a slow welfare disaster: turtles with substantial plastic loads show reduced feeding, malnutrition, and intestinal damage. Climate-driven sand warming causes developmental abnormalities and sex ratio distortion that threaten long-term viability. Individual welfare interventions include bycatch reduction through fishing gear modification, ghost gear removal, plastic pollution reduction, and nesting beach management. Sea turtle rehabilitation provides welfare benefit to individual animals and rehabilitation data that informs conservation science. Nesting beach protection — reducing artificial light, preventing disturbance, and maintaining sand thermal conditions — directly protects both individual nesting females and hatchlings.