Animal Welfare in Aquaculture: Global Trends and Gaps

Aquaculture produces more seafood than wild capture fisheries but welfare standards lag behind terrestrial farming. Closing this gap is one of the most pressing challenges in global animal welfare.

Key Facts

Aquaculture now accounts for over 50% of fish for human consumption globally
Welfare standards for farmed fish are less developed than for terrestrial livestock in most countries
Sea lice, crowding, water quality, and slaughter methods are the leading welfare challenges
The Global Salmon Initiative and ASC certification are driving welfare improvement in salmon specifically
Bivalves like mussels and oysters raise different and contested welfare questions

Welfare Considerations

Farmed fish represent the most numerous vertebrate animals raised by humans, yet they receive the least welfare regulation. The welfare challenges — crowding, water quality variation, parasites, and inhumane slaughter — are substantial but addressable. Progress is being made in salmon aquaculture through certification schemes and corporate commitments, but other farmed species including shrimp, carp, and tilapia have significantly weaker welfare frameworks. Consumer demand for welfare-certified aquaculture products is the primary driver of improvement.

What You Can Do

Choose aquaculture products certified by welfare-inclusive schemes like GlobalG.A.P. or ASC
Ask retailers about welfare standards across all farmed fish species, not just salmon
Advocate for welfare regulations for farmed fish species equivalent to terrestrial livestock
Support research into welfare indicators for commercially important farmed fish species
Reduce farmed fish consumption or choose welfare-certified alternatives