Recently, we have seen quite extreme temperature fluctuations in the pens
At a depth of 5 meters (screenshot 1), the temperature has varied from 6 to 12.4 °C. At 15 meters, the variation is somewhat smaller, but still significant. This clearly shows how important it is to measure temperature at several fixed depths. When high tide comes in, the temperature can “spike” and cause rapid changes in the environment where the fish are (screenshot 2)
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We also observe a tendency for O₂ levels to drop when the temperature rises rapidly. At the same time, we know that salmon are less tolerant of low oxygen levels at higher temperatures (https://www.hi.no/hi/nettrapporter/rapport-fra-havforskningen-2022-14 and screenshot 3). This makes it especially critical to detect such variations in a timely manner.
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Our measurements allow you to log up to 6 fixed depths per unit, so you always know the conditions where the fish are actually located.
You can receive alerts via text message and email when critical thresholds are reached, so you can quickly get an overview and take action.
Over time, these measurements also provide our customers with a solid data foundation. This makes it possible to track trends from year to year and use fact-based insights to make better, more strategic decisions for the next campaign.
