Sea Lion Welfare in Fishing Net Entanglement

Sea lions face serious welfare threats from entanglement in fishing gear and marine debris that causes chronic injury, impaired foraging, and death.

Key Facts

California sea lion populations have grown substantially since protection under the Marine Mammal Protection Act
Entanglement in fishing nets, crab pot lines, and packing bands causes hundreds of injuries annually
Marine debris including plastic packaging bands constricts sea lion necks as animals grow, causing severe injuries
Rescue organizations like NOAA and The Marine Mammal Center respond to hundreds of entangled sea lions yearly
Successful rescue and rehabilitation requires specialized facilities and veterinary expertise

Welfare Considerations

Sea lions with neck entanglements from packing bands or fishing line experience progressive constriction as the band embeds deeper into tissue while the animal grows. Wounds become infected, necrotic, and severely painful over months before intervention is possible. Net entanglement causes drowning or prolonged underwater struggle before surfacing or rescue. Animals with fish hooks embedded in mouths or esophagi experience pain with every attempt to swallow food. Rescue and rehabilitation is successful when animals are caught early enough, but many suffer for extended periods before being identified and restrained for treatment.

What You Can Do

Never release balloons, packing bands, or other materials that could entangle marine wildlife
Cut plastic rings, zip ties, and elastic bands before disposal
Report injured or entangled sea lions immediately to NOAA's marine mammal rescue hotline
Support marine debris cleanup efforts on beaches and in coastal waterways