Aquaculture

Aquaculture Species Welfare Comparison

Different aquaculture species have profoundly different welfare profiles, with some systems providing reasonable welfare and others causing chronic suffering.

Key Facts

Land-based recirculating systems provide better welfare control than open-net marine cages
Filter-feeding bivalves including mussels and oysters may have minimal welfare concerns given limited nervous systems
Warm-water shrimp aquaculture in Asia often operates with minimal welfare oversight
Tilapia aquaculture at high density causes chronic stress and aggression-related injury
Cleaner fish used in salmon farming including wrasse have severe welfare needs that are frequently neglected

Welfare Considerations

Aquaculture welfare is highly species and system dependent. Bivalves at low trophic levels with minimal nervous systems represent the most welfare-compatible protein source from aquaculture. Carnivorous finfish at high density represent the most welfare-problematic systems. Understanding the welfare profiles of different aquaculture species enables more informed consumer choices within the aquaculture category.

What You Can Do

Choose bivalves including mussels, oysters, and clams as the most welfare-compatible aquaculture seafood
Avoid shrimp from intensive production systems in countries without welfare oversight
Select finfish from certified low-density aquaculture with documented welfare standards
Learn about welfare differences between aquaculture species to make more informed seafood choices
Support research into welfare comparison across aquaculture species to guide consumer information