Welfare of Wild Animals Affected by Light Pollution at Sea

Artificial light from fishing vessels, offshore platforms, and coastal development attracts and disorients marine wildlife including sea turtles, seabirds, and fish with significant welfare consequences.

Key Facts

Sea turtle hatchlings navigate to the ocean by the brightness of the horizon — artificial light causes lethal disorientation
Seabirds attracted to vessel lights collide with superstructures at rates exceeding 5 million annually globally
Offshore platform lights attract migrating birds that exhaust themselves circling illuminated structures
Fish aggregating devices using lights concentrate fish around vessels, potentially increasing trawl bycatch
Blue-shifted LED lights have lower attraction effects on many species than older sodium vapor lighting

Welfare Considerations

Light pollution at sea causes wildlife welfare harm that is both acute — sea turtle hatchlings dying on roads rather than reaching the ocean — and chronic — seabirds repeatedly attracted to dangerous structures during migration. The mechanisms are understood: animals navigating by natural light cues are deceived by artificial sources. Solutions are available: turtle-safe lighting on beaches, reduced vessel lighting during migration seasons, and platform lighting modifications. The barrier is awareness and regulatory will, not technical feasibility.

What You Can Do

Support turtle-safe lighting ordinances on coastal beaches during nesting season
Advocate for offshore platform lighting modifications during peak bird migration periods
Choose fishing companies with documented vessel lighting modification programs
Donate to organizations rehabilitating seabirds injured by vessel light attraction