Farmed Salmon Welfare and Welfare Indicator Development

Developing scientifically validated welfare indicators for farmed salmon is essential for moving from assumed welfare to measured welfare in aquaculture.

Key Facts

The Welfare Indicators for Salmon Producers project developed a suite of evidence-based indicators
Valid indicators include eye damage, fin erosion, cataracts, wounds, and gill health assessment
Behavioral indicators including surface avoidance and abnormal swimming patterns indicate welfare problems
Welfare assessment in salmon requires sampling approaches appropriate for large pen populations
Adoption of standardized welfare indicators enables comparison between farms and over time

Welfare Considerations

Salmon welfare indicator development represents the scientific foundation for genuine welfare improvement in aquaculture. Without validated, measurable indicators, welfare claims are unverifiable and welfare trends are invisible. The SWIM welfare indicator suite developed in Norway provides producers, certifiers, and regulators with tools to measure actual salmon welfare outcomes rather than relying on input-based assessments of housing conditions. Widespread adoption of outcome-based welfare indicators transforms aquaculture from a system of assumed welfare to one of measured, accountable welfare.

What You Can Do

Support adoption of science-based welfare indicators in salmon aquaculture certification
Advocate for outcome-based welfare assessment to replace or complement input-based standards
Choose salmon from producers who publish welfare indicator data as part of transparency commitments
Support research validating new welfare indicators for salmon and other farmed fish species