Harbour porpoises are Britain's smallest and most common cetacean, but face significant welfare threats from bycatch and pollution. Their welfare is closely tied to responsible fishing practice.
Harbour porpoise welfare is dominated by the bycatch issue. Thousands of porpoises drown each year in fishing nets - an entirely preventable welfare harm. Acoustic pingers on gill nets significantly reduce porpoise bycatch and are increasingly required under UK regulations. Noise pollution from offshore wind construction causes acute behavioural disturbance, forcing porpoises to abandon feeding areas during the most disruptive periods. Supporting sustainable fishing certification and advocating for mandatory pinger use are the most direct welfare actions available to the public.