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Fra rapporten: Summary and status of deep lights and deep feed use in commercial settings: welfare, behaviour and infestation at three case study sites

Figure 3. Mean overall welfare score of fish in treatment groups, for each study site, over the study period. Periods differ in year between sites: Kobbavika shows data from 2015-2016, Vindsvik from 2016-2017, and Skrubbholmen within 2018. The overall welfare index is calculated using the SWIM model (Stien et al. 2013), which has a possible score range from 0 to the most positive score of 1.