• Long-term welfare effects of repeated warm water treatments on Atlantic salmon (Salmo salar) 

      Moltumyr, Lene; Nilsson, Jonatan; Madaro, Angelico; Seternes, Tore; Rønnestad, Ivar; Stien, Lars Helge (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-30)
      Warm water treatment has in recent years become widely used for ridding salmonids of sea lice in aquaculture although the consequences of the treatment for fish welfare are not adequately investigated. The objective of this study was to document potential long-term welfare effects of repeated warm water treatments on Atlantic salmon (Salmo salar). Five weeks after a baseline welfare indicator ...
    • Thermal injuries in Atlantic salmon in a pilot Laboratory trial 

      Gismervik, Kristine; Gåsnes, Siri Kristine; Gu, Jinni; Stien, Lars Helge; Madaro, Angelico; Nilsson, Jonatan (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-09-27)
      Thermal delousing is a new method for removing sea lice from farmed Atlantic salmon (<i>Salmo salar</i> L). We investigated thermally-related tissue injuries in Atlantic salmon in a pilot laboratory trial to describe the acute effect of high water temperatures (34–38 °C). Acute tissue injuries in gills, eyes, brain and possible also nasal cavity and thymus were seen in salmon exposed to water ...