Shrimp Disease Management and Aquaculture Welfare

Disease outbreaks devastate shrimp aquaculture operations and cause mass mortality events. Understanding disease pressure and prevention is central to both welfare and sustainability in shrimp farming.

Key Facts

White spot syndrome virus is the most devastating shrimp disease globally, causing losses of billions of dollars annually
Early mortality syndrome (EMS/AHPND) has caused catastrophic losses in Asian shrimp farms since 2009
High stocking densities in intensive shrimp ponds create conditions that facilitate disease transmission
Biosecurity measures including biosecure hatcheries, pathogen-free stock, and water treatment significantly reduce disease risk
Chemical treatments including antibiotics are widely used in developing country shrimp aquaculture despite resistance concerns
Specific pathogen-free (SPF) broodstock programmes have improved disease resistance in commercial shrimp populations

Welfare Considerations

Disease outbreaks in shrimp aquaculture cause mass mortality — individual shrimp dying from viral or bacterial infections experience physiological stress and impaired function. The sentience of shrimp remains contested but the precautionary principle supports minimising disease burden for animal welfare as well as economic reasons. High-density systems that maximise disease transmission risk represent a welfare concern that better management could reduce.

What You Can Do

Choose certified sustainable shrimp products from operations with disease management standards
Support research into shrimp sentience and welfare to build the evidence base for protective standards
Reduce shrimp consumption or replace with plant-based alternatives where welfare cannot be verified
Advocate for antibiotic use reporting and reduction requirements in shrimp aquaculture certification
Support development of shrimp-specific welfare standards within aquaculture certification schemes
Ask retailers about their shrimp sourcing standards and welfare policies