Marine Wildlife

Wild Sea Turtle Artificial Light Disorientation

Artificial lighting on coastal beaches disorients newly hatched sea turtles that navigate to the sea by the brightest horizon but are confused by artificial lights.

Key Facts

Hatchling sea turtles instinctively move toward the brightest light source
Artificial lights cause hatchlings to move inland toward roads and buildings
Disoriented hatchlings die from dehydration, exhaustion, and predation
Turtle-safe lighting with red or amber wavelengths does not disorient hatchlings

Welfare Considerations

Disoriented hatchlings endure exhaustion, dehydration, and prolonged predation stress as they wander inland rather than reaching the sea. Many die before reaching water. Even surviving hatchlings that are rescued and released face fitness costs from their ordeal. Beach lighting management is one of the simplest and most cost-effective welfare interventions available for sea turtles.

What You Can Do

Turn off or shield beach-facing lights during turtle nesting season
Use turtle-safe lighting certified to be hatchling-friendly
Participate in sea turtle hatchling rescue programs
Advocate for coastal lighting ordinances in sea turtle nesting areas