Monday January 12, 2026
SalmonBusiness —
A new peer-reviewed study has found that triploid Atlantic salmon experience significant physiological disadvantages once they reach larger harvest sizes, helping to explain persistent welfare problems reported during the final marine growth phase.
The research, published in Scientific Reports in December 2025, compared triploid and diploid Atlantic salmon at around 3 kilograms, a size representative of late-stage sea cage production. Triploid salmon are sterile and have been promoted as a tool to prevent escaped farmed fish from breeding with wild populations.