Aquaculture Welfare

Farmed Salmon: Welfare Considerations in Organic Systems

Organic salmon farming requires lower stocking densities and prohibits certain treatments, creating distinct welfare profiles compared to conventional salmon farming.

Key Facts

Organic salmon must be stocked at lower densities than conventional systems (10-15 kg/m3 vs 25+ kg/m3)
Organic standards prohibit synthetic antiparasitic treatments, restricting lice management options
Organic salmon are fed organic-certified feed with higher fishmeal and fish oil content
Lower density is associated with reduced aggression, improved feeding competition and better welfare
Restricted treatment options can lead to higher lice burdens in some organic operations

Welfare Considerations

Organic salmon farming has genuine welfare advantages through lower stocking density and prohibition of some high-stress treatments. However, restricted access to antiparasitic treatments can result in higher lice burdens when biological control is insufficient, causing welfare harm from parasitic infestation. The welfare profile of organic salmon requires case-by-case assessment rather than assuming organic always means better welfare.

What You Can Do

Support aquaculture welfare certification that provides species-specific welfare outcome data
Learn about the welfare trade-offs in organic versus conventional salmon farming
Advocate for lice management options in organic systems that minimise both parasite and treatment welfare harm
Choose certified organic salmon where welfare outcome data supports good welfare