Marine Protected Areas reduce fishing pressure on wild animals, allowing populations to recover and individual welfare to improve through reduced bycatch, entanglement, and habitat destruction.
Marine Protected Areas provide welfare benefits through multiple pathways. In areas where trawling is excluded, benthic animals - sponges, corals, crabs - are protected from the destructive passage of heavy gear. Fish populations in protected areas have reduced bycatch mortality. Cetaceans and seabirds that forage in protected areas face lower entanglement risk. The welfare case for HPMAs - the strongest form of protection - is stronger than for paper MPAs with limited restrictions. Consumer and advocacy pressure for genuine marine protection, not just nominal designation, delivers real welfare benefits at scale.