Standard monthly mortality curves in relation to fish size (weight). The dashed lines indicate the 50th, 75th and 95th percentiles for mortality in Norwegian farming cages as reported to the Directorate of Fisheries for salmon transferred to cages in 2011-20201. Cages with fewer than 50,000 fish, or where delousing has been reported to the Norwegian Food Safety Authority in the same month, or the month before, are not included.
