The farmed salmon industry is investing in welfare-improving technologies driven by regulatory pressure, consumer demand, and evidence that better welfare produces better fish.
Salmon aquaculture welfare has advanced significantly over the past decade, driven primarily by Norwegian regulatory frameworks and the industry's recognition that welfare correlates with productivity. Operational Welfare Indicators (OWIs) including gill score, wound score, fin score, and lice burden are now monitored routinely and trigger management responses when thresholds are exceeded. Slaughter welfare mandates require effective stunning before killing. Land-based recirculating aquaculture systems eliminate sea lice and many open-ocean welfare challenges, though high costs limit deployment. The welfare improvements in Norwegian salmon farming provide a model that is spreading to other major producing nations through both regulatory influence and market premium pressure from welfare-conscious buyers.