Browsing by Author "Sveen, Lene"

Now showing items 1-2 of 2

    • Gradually decreasing daylength after smoltification induced by “winter signal“ reduced sexual maturation in male Atlantic salmon 

      Skjold, Vetle; Rørvik, Kjell-Arne; Sveen, Lene; Burgerhout, Erik; Mota, Vasco C.; Weihe, Runi; Ytrestøyl, Trine; Bou, Marta; Jacobsen, Hans Jakup; Allaoui, Giovanni; Fuskevåg, Ole-Martin; Dessen, Jens-Erik (Journal article; Tidsskriftartikkel; Peer reviewed, 2024-01-16)
      Introduction: Maturation in seawater-adapted (smoltified) male Atlantic salmon is undesirable yet frequently reported in fish weighing up to 1 kg reared under intensive conditions in land-based facilities. Although the photoperiod regulates both smoltification and maturation, the optimal post-smoltification regimen for the prevention of maturation is unclear.<p> <p>Methods: In this study, ...

    • Nanofiltration of intake water in RAS: Effect on fish performance, health and welfare 

      Ytrestøyl, Trine; Sveen, Lene; Krasnov, Aleksei; Dalum, Alf Seljenes; Kolarevic, Jelena (Research report; Forskningsrapport, 2022)
      The experiment tested the effect of nanomembrane filtration in RAS on the salmon's physiology, welfare and growth. A specially designed membrane was used to remove sulphate from seawater and to adjust salinity from 32 to 12 ‰. A RAS where salinity was adjusted to 12 ‰ by mixing raw seawater and freshwater was used as control. The fish were kept in the two systems for 10 weeks before being ...