Practical welfare indicators for farmed salmon allow producers and certifiers to assess and improve welfare on a routine basis. Science-based indicators are now being incorporated into certification standards.
Welfare indicator development for farmed salmon has advanced significantly in the past decade, driven by scientific research and pressure from certification bodies and retailers. The challenge is translating laboratory-validated stress indicators into practical on-farm assessment tools that don't themselves cause stress through sampling. Observation-based indicators — crowding behaviour, surfacing frequency, fin and body condition scores — are particularly valuable because they can be assessed non-invasively and routinely. The development of validated welfare assessment protocols means that salmon welfare can now be measured, benchmarked and improved rather than simply assumed. Consumer-facing certification schemes that incorporate these indicators create market incentives for producers to invest in welfare improvements.