Sea Turtle Conservation and Welfare: Nesting Beaches and Ocean Threats

Sea turtles face welfare challenges across their entire life cycle, from nesting beach threats to ocean entanglement, bycatch, and the effects of climate change on critical habitat.

Key Facts

Seven species of sea turtles exist globally, all classified as threatened or endangered — from the critically endangered Kemp ridley to the endangered loggerhead and green turtles
Sea turtle nesting is a welfare-intensive event: females return to their birth beach every 2-4 years, making 5-7 nests per season, each involving exhausting excavation and egg-laying lasting several hours
Artificial lighting on and near nesting beaches disorients hatchlings, which navigate to the ocean by moving toward the brightest horizon — in developed beach areas, hatchlings move toward inland lights and die from exhaustion or predation
Fibropapillomatosis — a debilitating viral disease causing large tumors — affects green turtles globally and is linked to coastal water quality degradation from runoff and pollution
Entanglement in fishing gear kills an estimated 250,000 sea turtles annually, with longlines, gillnets, and trawls all contributing to bycatch mortality
Turtle Excluder Devices (TEDs) in shrimp trawls are required in US waters and allow turtles to escape through a trapdoor — they reduce sea turtle bycatch by over 90% when correctly installed
Climate change affects sea turtle nesting through: beach erosion reducing nesting habitat, rising sand temperatures feminizing hatchling populations (turtle sex determination is temperature-dependent), and sea level rise flooding nesting beaches

Welfare Considerations

Sea turtle welfare spans decades — these long-lived animals face welfare challenges throughout lives that can extend over 80 years. The welfare events that receive most attention are visible: nesting females on beaches, hatchlings disoriented by artificial light, turtles entangled in gear. But chronic welfare stressors — plastic ingestion causing false satiety, fibropapillomatosis tumors growing around eyes and flippers, and navigational disruption from ocean noise — affect individual welfare over years without visible crisis events. Beach stewardship programs that reduce artificial light pollution, protect nests from predation, and guide hatchlings to the ocean are direct welfare interventions with measurable impact. Bycatch reduction through TED requirements represents one of the most impactful regulatory welfare interventions for any marine species.

What You Can Do

Support sea turtle nesting beach programs through Oceana, Sea Turtle Conservancy, and national turtle monitoring organizations
Advocate for ordinances requiring sea turtle-friendly lighting near nesting beaches that reduce hatchling disorientation
Choose seafood from fisheries using turtle excluder devices and choose certified sustainable trawl-caught shrimp
Remove and properly dispose of plastic waste from beaches — plastic ingestion by sea turtles is a leading cause of illness and death in many populations
Support climate change mitigation to protect the beach temperatures and coastlines that sea turtle nesting depends on