Calmer Waters: How TAST Reduces Stress in Farmed Salmon
Does 2025 have you feeling stressed? Well, some farmed salmon may be feeling the same way!
Last year, we took a long look at an unexpected benefit of TAST observed by a Scottish salmon farming company. After implementing TAST devices on a farm, a reduction in the occurrence of sea lice and disease was noted. A literature review has revealed a connection between predator induced stress, fish health & welfare, and end product quality.
Predators like seals trigger prolonged cortisol spikes in salmon, leading to stress responses and weakened immune systems, making fish vulnerable to parasites and disease. These result in higher mortality rates and reduced growth performance. TAST can disrupt this cycle by startling predators and causing localized predator avoidance without stressing farmed salmon or other marine life.
A groundbreaking innovation for mitigation of depredation, predator-induced stress, and cascading biological effects on salmon, the efficacy of TAST has been proven through more than a decade of research (e.g. Götz & Janik, 2015; 2016). By preventing the initial stress response, TAST can help maintain optimal omega-3 and astaxanthin levels, supports immune function, and preserves natural feeding behaviours, leading to healthier fish and improved outcomes. With widespread adoption, it could enhance global best practices for fish health and welfare throughout the aquaculture industry.
If you’d like to dive deeper on this topic with us, check out our fish stress resource library at this link.
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