Aquaculture Welfare

Salmon Genetic Selection and Welfare Traits

Genetic selection in farmed salmon is increasingly incorporating welfare-relevant traits alongside production characteristics.

Key Facts

Commercial salmon breeding has primarily selected for growth rate and disease resistance
Welfare-relevant traits including calmness, schooling behaviour and louse resistance are now studied
Genome-wide association studies identify genetic markers for welfare-associated traits
Selection for reduced stress response may improve welfare outcomes in crowded production conditions
Trade-offs between production and welfare traits require careful breeding programme design

Welfare Considerations

Genetic selection is a powerful long-term lever for improving farmed salmon welfare. Selecting for calmness, reduced stress response and disease resistance can substantially improve the welfare of millions of fish over successive generations.

What You Can Do

Support aquaculture research programmes investigating welfare-relevant genetic traits
Advocate for welfare trait inclusion in breeding programme objectives alongside production targets
Engage with salmon welfare science organisations communicating genetic approaches to welfare