59.3 million Norwegian farmed salmon were lost from production between sea-transfer and harvest (ongrowers), of which 52.8 million were categorised as mortality-related. This high number can be partly explained by losses associated with algal blooms in Nordland and Troms, which alone killed approximately 8 million fish. If excluded from the total picture, total mortality (approximately 45 million) was at a similar level as 2016 and represents a slight reduction from 2018.