Water quality management is the most critical factor in farmed shrimp welfare, with poor conditions causing chronic stress, disease outbreaks, and mass mortality across global shrimp aquaculture.
The welfare of farmed shrimp, while scientifically debated, is increasingly taken seriously by researchers and certifiers who recognize that shrimp show behavioral and physiological responses consistent with negative experience. Whatever the final verdict on shrimp sentience, poor water quality demonstrably causes mass mortality events and physiological stress responses that represent welfare concerns. High ammonia, low oxygen, and pH fluctuations are the primary water quality drivers of shrimp welfare problems in intensive systems. Farms with robust monitoring systems, aeration equipment, and lower stocking densities consistently achieve better animal health outcomes. Certification standards that include water quality criteria incentivize the management practices most likely to improve both welfare and production sustainability.