Sea turtles face multiple simultaneous welfare threats from plastic ingestion, entanglement in fishing gear, light pollution disrupting nesting, and climate change affecting nest temperatures.
Sea turtle welfare is threatened across multiple dimensions simultaneously. Plastic ingestion causes gut impaction, intestinal perforation, and toxicity that cause prolonged suffering before death. Entanglement in nets or ghost gear causes panic-driven drowning or slow death by asphyxiation, and survivors endure flipper amputations under anaesthesia with uncertain survival outcomes. Nest-site light pollution causes female turtles to avoid otherwise suitable nesting beaches and misdirects hatchlings away from the sea — into roads, buildings, and predators. The cumulative welfare burden on individual sea turtles across their long lifespans (50-80 years) is substantial. Conservation action that reduces plastic waste, ghost fishing gear, and coastal light pollution directly reduces individual turtle welfare harm.