Sea Lions and Entanglement in Fishing Gear

Sea lion entanglement in fishing nets and marine debris causes drowning, injury, and prolonged suffering in coastal populations.

Key Facts

California sea lion entanglement in fishing gear is documented at several hundred cases annually
Entangled sea lions may carry fishing line or net material for months before it causes fatal injury
Neck entanglements from fishing line cut progressively deeper as animals grow, causing severe wounds
Derelict fishing gear abandoned at sea continues catching marine mammals for years after abandonment
Entanglement rates are higher in areas of high fishing effort, particularly for salmon and rockfish fisheries

Welfare Considerations

Sea lion entanglement causes prolonged suffering: animals can live for months with progressive neck wounds from fishing line, unable to remove the material. Drowning from acute net entanglement is rapid but the cumulative burden of sub-lethal entanglements is substantial. Gear recovery programs and fishing technique modifications reduce the ongoing entanglement risk.

What You Can Do

Support marine debris cleanup programs targeting derelict fishing gear recovery
Advocate for mandatory gear marking and retrieval requirements for commercial fishing operations
Choose seafood from certified sustainable fisheries with verified low bycatch and entanglement rates