Jellyfish, sea lice and harmful algal blooms are among the hidden hazards threatening salmon farms that FP Aqua’s technology is designed to detect © Bob Brewer, UnsplashThe biggest threats on salmon farms are hard to see and cause major economic losses. The FP Aqua team had identified an opportunity in aquaculture’s growth and rapid digitalisation, and ventured into developing a water-monitoring sensor for fish farmers. Watch this summary videoSpotting trouble before it strikes the farm Atlantic salmon farms face a range of biological threats. Jellyfish can cause sudden mass mortalities – in 2024, a barbed-wire jellyfish (Apolemia uvaria) bloom killed nearly 200,000 salmon in Scotland. “We also learned that biofouling could quickly degrade image quality, so we integrated UV-C illumination to keep the optical windows clean and extend deployment time.”Christoffer Sander, student worker at FP Aqua, with the underwater microscope © FP Aqua