Aquaculture Welfare

Aquaculture: Shrimp Water Quality Management

Water quality parameters are fundamental determinants of welfare outcomes for farmed shrimp, with poor management causing widespread suffering in intensive systems.

Key Facts

Dissolved oxygen below 3 mg/L causes acute respiratory distress in farmed shrimp
Ammonia accumulation from waste products is toxic and causes gill damage
Temperature fluctuations beyond the optimal range reduce immune function
pH management is critical as extreme values damage shrimp gill tissue
Modern biofloc technology systems improve water quality while reducing water exchange needs

Welfare Considerations

Shrimp experience physiological stress responses that are welfare-relevant across a range of adverse water quality conditions. Hypoxia in particular causes distress that is rapid and severe. Given the enormous numbers of shrimp produced globally, improving water quality management represents one of the largest potential welfare gains in animal agriculture.

What You Can Do

Support welfare certification schemes that include water quality monitoring requirements
Advocate for mandatory water quality standards in shrimp farming regulations
Choose shrimp from certified sustainable and welfare-monitored sources
Support research into biofloc and RAS systems that improve shrimp welfare outcomes
Raise awareness that shrimp welfare is a significant and neglected aquaculture issue