How water quality management in shrimp aquaculture affects animal welfare and what standards are emerging in the industry.
Water quality management in shrimp aquaculture is a direct welfare intervention because water quality parameters determine whether shrimp can maintain normal physiological function or experience the equivalent of chronic respiratory stress, chemical burns to sensitive gill tissue, and immune suppression. The mass mortality events that characterize poorly managed shrimp operations — where oxygen depletion or ammonia spikes kill millions of animals over hours — represent the most acute and severe welfare events in shrimp production. Prevention through appropriate stocking density, aeration management, water exchange, and monitoring is both commercially rational and welfare-protective. Certification schemes that include water quality monitoring requirements and management standards provide a mechanism for consumer choices to drive welfare improvement through supply chains.