Aquaculture

Norway’s supersmolt salmon surge: Faster growth, but at what cost?

As production of large smolt skyrockets, experts are racing to ensure fish welfare keeps pace with industry ambitions.

Illustrative photo from a hatchery in the Faroe Islands. Here, fish up to 500 grams are produced before being released into the sea. Fish over 250 grams are considered large smolt.
Illustrative photo from a hatchery in the Faroe Islands. Here, fish up to 500 grams are produced before being released into the sea. Fish over 250 grams are considered large smolt.Photo: Anders Furuset
Published 7 October 2025, 03:00Updated 7 October 2025, 09:17
Farmed salmonNorwaySmoltFish healthMortalities