The terms of the permit define that the ‘experimental biomass shall be used for research in aquaculture-related issues for salmon farming and water quality, which is part of APN’s research activity’.
The main theme has been to map the effects of new production regimes in northern Norway on the fish’s performance and welfare after release. This new production regime has been exposed to larger smolts (“postsmolt”, approx. 250 g), produced in recycling plants, at a new time (at the turn of the year). Sibling groups of traditional autumn smolts (0-year-old released in October) have been used as a basis for comparison. Four generations, set out in the period 2016-2019 have been compared.
Studies have also been carried out of the effects of post-smolt exposure size and exposure time in this period, as well as the development of a methodology for photo-based welfare scoring in the period 2020-2022.
Revenues from the R&D license are also used as partial or full financing of projects that are not linked to the permit’s main theme, e.g. methodology for quantifying infectious stages of lice in the water bodies (Zooscanner; 2019), and methodology for recapturing roe biscuits in salmon cages (FHF project CleanCatch; 2021).