According to monthly reporting, 43.3 million Atlantic salmon, 2.84 million rainbow trout, and 2.44 million Atlantic cod weighing more than 3 grams died in land-based juvenile production facilities in 2025. This represents a decrease for salmon and rainbow trout compared with 2024, while mortality increased for cod.
In the sea phase, 54.8 million salmon, 3.2 million rainbow trout, and 2.4 million cod died. Estimated mortality (mortality risk) in 2025 was 14.2% for salmon, 17.0% for rainbow trout, and 20.4% for cod. For salmon and cod, this constitutes a slight decrease compared with 2024, whereas mortality increased for rainbow trout.
For all species, non-infectious diseases were ranked as the most important health challenges in the juvenile phase in the survey answered by fish health personnel as well as inspectors and advisors from the Norwegian Food Safety Authority, although infectious pancreatic necrosis (IPN) was ranked relatively high for both salmon and rainbow trout.
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