Welfare of Farmed Prawns — Intensive Pond Systems in Asia

Whiteleg shrimp farming in intensive Asian pond systems involves billions of crustaceans in conditions with significant welfare implications that have only recently received serious attention.

Key Facts

Global shrimp aquaculture produces over 5 million tonnes annually — dominated by whiteleg shrimp (Litopenaeus vannamei)
Intensive ponds stock up to 150 shrimp per square metre — dramatically higher than semi-intensive systems
Disease outbreaks (EMS, white spot) regularly kill 40-60% of crops in intensive systems
Eyestalk ablation of female broodstock to stimulate reproduction is standard practice across the industry
Stunning before slaughter is absent in virtually all shrimp processing — shrimp are boiled or iced alive
Water quality in intensive ponds can deteriorate rapidly, causing mass hypoxia events
The Shrimp Welfare Project works directly with producers to improve conditions and evaluate sentience evidence

Welfare Considerations

Shrimp welfare is one of the highest-impact animal welfare issues by numbers affected — billions of individual animals, with essentially no welfare oversight anywhere in the global supply chain. The science on crustacean sentience is evolving rapidly and the case for precautionary consideration is strengthening. Eyestalk ablation, hypoxic pond conditions, and live boiling or icing are all potentially significant welfare harms under precautionary approaches. The Shrimp Welfare Project is demonstrating that welfare improvements are possible within existing production economics. Consumer and retailer pressure for welfare certification is the most immediate lever available.

What You Can Do

Support the Shrimp Welfare Project through donations or advocacy
Ask supermarkets and restaurants about their shrimp welfare standards
Reduce shrimp consumption or choose certified welfare-conscious products
Advocate for crustacean welfare to be included in national animal welfare legislation
Support sentience research that will inform evidence-based welfare standards for shrimp