Longline and trawl fisheries kill hundreds of thousands of seabirds annually. Simple mitigation measures including tori lines, weighted hooks, and night setting could prevent most seabird bycatch deaths.
Seabird bycatch welfare involves drowning deaths and injuries from hook penetration that cause real suffering in highly intelligent, long-lived birds with complex social lives. Albatrosses mate for life, raising a single chick every other year; the loss of a breeding adult from bycatch leaves a bereaved mate and disrupts decades of reproductive potential. The welfare case for bycatch reduction is strengthened by the availability of proven, inexpensive mitigation measures that can reduce bycatch by 70-90%. The failure to adopt these measures universally is a regulatory and compliance failure rather than a technical limitation. Consumer pressure and certification requirements are driving adoption in some fisheries.