Electronic implant lets select farmed salmon serve as sentinel fish

Electronic implant lets select farmed salmon serve as sentinel fish

Source: Norwegian SciTech News

12/11/2023

Credit: Daniel Gløsen

Observing a whole pen full of salmon at a fish farm will only tell you so much about their well-being. That's why Norwegian scientists have developed an implant that measures and records the vital signs of individual fish, who will serve as "sentinels."

Created by Eirik Svendsen and colleagues at the SINTEF Ocean research institute, the cylindrical device measures 47 mm long by 13 mm wide. It contains a battery, microcontroller and memory card, along with sensors that monitor blood oxygen content, heart rate, activity level, directional orientation and temperature.

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