Aquaculture

Farmed Shrimp Welfare: Density, Disease, and Slaughter

Farmed shrimp production exceeds 5 million tonnes annually with growing evidence that shrimp experience nociception and stress, raising welfare questions about standard farming and slaughter practices.

Key Facts

Global farmed shrimp production exceeds 5 million tonnes per year
Shrimp are farmed at densities up to 150 animals per square meter
White spot disease and early mortality syndrome cause mass mortalities on farms
Most farmed shrimp are killed by ice slurry, a method that may cause prolonged suffering
Cambridge Declaration (2012) noted arthropods had some capacity for conscious experience

Welfare Considerations

Research has shown that shrimp show aversive responses to harmful stimuli, learn to avoid painful experiences, and show physiological stress responses analogous to those in vertebrates. The precautionary principle suggests that the billions of shrimp farmed annually deserve welfare consideration, particularly regarding slaughter methods and stocking densities.

What You Can Do

Reduce shrimp consumption given current welfare uncertainty
Choose shrimp from certified lower-density production systems when consuming
Support research into shrimp sentience and welfare-friendly slaughter methods
Advocate for shrimp inclusion in aquaculture welfare regulations
Ask retailers about their shrimp sourcing and welfare commitments