Farmed Shrimp Disease Biosecurity and Welfare

How disease outbreaks in shrimp aquaculture affect welfare and what biosecurity practices can reduce suffering at scale.

Key Facts

Global shrimp aquaculture produces over 5 million tonnes annually, with billions of individuals farmed
Disease is the leading cause of production losses in shrimp farming, killing hundreds of billions of animals annually
White Spot Syndrome Virus and Early Mortality Syndrome cause mass die-offs with significant welfare implications
Overcrowded and stressed shrimp have compromised immune function and higher disease susceptibility
Biosecure facilities with improved water quality and lower stocking density have better survival and welfare outcomes
Pathogen-free broodstock programs and probiotic treatments reduce disease rates without antibiotics

Welfare Considerations

Disease in shrimp aquaculture represents an enormous welfare problem given the billions of animals affected. Whether shrimp experience something analogous to suffering during disease remains debated, but precautionary welfare principles suggest minimizing conditions that lead to mass mortality from preventable causes. Biosecurity improvements that reduce disease transmission also tend to reduce chronic stress from poor water quality and overcrowding, creating co-benefits for both production efficiency and animal welfare.

What You Can Do

Choose shrimp products from certified farms with documented biosecurity and welfare standards
Support research into shrimp sentience and appropriate welfare standards for crustaceans
Advocate for industry-wide adoption of stocking density limits and water quality standards
Ask seafood retailers about the disease management practices of their shrimp suppliers