Dissolved oxygen management is fundamental to fish welfare in aquaculture, and advanced monitoring and supplementation systems are improving outcomes across the industry.
Oxygen depletion is one of the most acutely distressing experiences fish can suffer in aquaculture - they actively avoid hypoxic water, show desperate surface-gulping behavior, and in severe cases die from suffocation. Advanced oxygen management systems prevent this welfare harm by detecting and responding to depletion before fish experience significant stress. The technology is available and increasingly affordable, but implementation requires investment and operational commitment. Welfare certification schemes that include oxygen monitoring requirements have been effective drivers of adoption.