Aquaculture

Farmed Salmon Hatchery Advanced: Water Quality Welfare

Hatchery water quality management is a primary determinant of salmon welfare and deformity rates, requiring precise control.

Key Facts

Dissolved oxygen below 7 mg/L causes chronic stress during egg incubation
CO2 accumulation in poorly aerated hatchery systems causes acidosis in developing embryos
Ammonia from decomposing uneaten feed causes gill damage and welfare compromise
UV sterilisation of water prevents pathogen transmission with no welfare cost to fish

Welfare Considerations

Water quality failures during hatchery incubation and early development cause permanent welfare consequences through deformity and immune compromise. Precise water quality management is a welfare investment that determines the baseline health of every fish entering production.

What You Can Do

Support aquaculture standards requiring water quality monitoring and welfare targets in hatcheries
Advocate for hatchery welfare certification as part of salmon supply chain standards
Choose salmon from producers with transparent hatchery management and welfare data