Freshwater Prawn Welfare in Aquaculture

Freshwater prawns including the giant river prawn are farmed intensively with minimal welfare consideration.

Key Facts

Giant river prawn (Macrobrachium rosenbergii) is one of the most important farmed freshwater crustaceans
Prawns show complex behaviours including dominance hierarchies and aggressive interactions
High stocking density in prawn ponds causes aggression, injury, and stress
Stunning before killing is not standard practice in prawn aquaculture
The welfare relevance of freshwater prawn farming is increasingly debated in welfare science

Welfare Considerations

Freshwater prawn welfare exists in a policy vacuum similar to other crustaceans. Evidence for nociception and pain-like behaviour is growing. Farming practices involve crowded conditions with high rates of aggressive interaction and injury. Slaughter without stunning is universal in commercial prawn aquaculture. The precautionary principle and expanding scientific evidence suggest that minimum welfare standards — including reduced stocking density and welfare-positive killing — should be applied to freshwater prawn farming.

What You Can Do

Support research into freshwater prawn sentience and welfare science
Apply the precautionary principle in choosing freshwater prawn products
Advocate for welfare consideration to be included in freshwater aquaculture regulation
Reduce prawn consumption or choose sustainably certified sources
Learn about the evidence for crustacean pain and its policy implications