Farmed Shrimp Hatchery Welfare | Animal Welfare Hub

The hatchery phase of farmed shrimp production presents specific welfare challenges related to larval density, water quality and disease management in young shrimp.

Key Facts

Shrimp larvae are reared at very high densities in hatcheries before being stocked in grow-out ponds or tanks
Larval shrimp are highly sensitive to water quality parameters including ammonia, pH and oxygen levels
Vibrio bacteria are a major cause of early mortality in shrimp hatcheries, causing the shells to turn opaque
Early Mortality Syndrome (EMS/AHPND) has caused devastating losses in Asian shrimp hatcheries and farms
The question of whether larval shrimp are sentient and capable of suffering is scientifically contested but precautionary approaches are warranted

Welfare Considerations

The welfare of larval shrimp in hatcheries is an emerging area of concern that is complicated by genuine scientific uncertainty about larval shrimp sentience. The precautionary principle applied to animal welfare suggests that management practices that minimise unnecessary suffering are appropriate even in the absence of conclusive evidence of sentience. Improving water quality, reducing stocking density and developing disease prevention strategies that do not rely on chemical treatments are welfare-positive regardless of the sentience question.

What You Can Do

Support research into larval shrimp welfare and the neuroscience of shrimp pain processing
Advocate for precautionary welfare principles to be applied in shrimp hatchery management standards
Choose certified shrimp products from producers that demonstrate responsible hatchery management
Support development of disease prevention strategies that reduce antibiotic use in shrimp hatcheries
Engage with aquaculture certification bodies about including hatchery welfare standards