Browsing Department of Biological Sciences by Author "Vågseth, Tone"

Now showing items 1-7 of 7

    • Cleaner fish growth, welfare and survival in Atlantic salmon sea cages during an autumn-winter production 

      Geitung, Lena; Wright, Daniel William; Oppedal, Frode; Stien, Lars Helge; Vågseth, Tone; Madaro, Angelico (Journal article; Peer reviewed, 2020)
      Cleaner fish used as a biological control agent against salmon lice is rapidly increasing in Atlantic salmon aquaculture. However, concerns have been raised about the welfare and mortality of cleaner fish in salmon cage ...

    • The effect of temperature on ability of Lepeophtheirus salmonis to infect and persist on Atlantic salmon 

      Dalvin, Sussie; Hamre, Lars Are; Skern-Mauritzen, Rasmus; Vågseth, Tone; Stien, Lars Helge; Oppedal, Frode; Bui, Samantha (Journal article; Peer reviewed, 2020)
      The salmon louse (Lepeophtheirus salmonis) is an ecologically and economically important parasite of salmonid fish. Temperature is a strong influencer of biological processes in salmon lice, with development rate increased ...

    • The interaction between water currents and salmon swimming behaviour in sea cages 

      Johansson, David; Laursen, Frida Maria; Fernø, Anders; Fosseidengen, Jan Erik; Pascal, Klebert; Stien, Lars Helge; Vågseth, Tone; Oppedal, Frode (Peer reviewed; Journal article, 2014-05-15)
      Positioning of sea cages at sites with high water current velocities expose the fish to a largely unknown environmental challenge. In this study we observed the swimming behaviour of Atlantic salmon (Salmo salar L.) at a ...

    • Parasite development affect dispersal dynamics; infectivity, activity and energetic status in cohorts of salmon louse copepodids 

      Skern-Mauritzen, Rasmus; Sissener, Nini; Sandvik, Anne Dagrun; Meier, Sonnich; Sævik, Pål Næverlid; Skogen, Morten D.; Vågseth, Tone; Dalvin, Sussie; Skern-Mauritzen, Mette; Bui, Samantha (Journal article; Peer reviewed, 2020)
      The salmon louse, Lepeophtheirus salmonis, is a parasitic copepod infecting wild and farmed salmonid fishes in the northern hemisphere. It has a direct lifecycle with a planktonic dispersal phase and an infective copepodid ...

    • Production and verification of the first Atlantic salmon (Salmo salar L.) clonal lines 

      Hansen, Tom Johnny; Penman, David J.; Glover, Kevin; Fraser, Thomas; Vågseth, Tone; Thorsen, Anders; Sørvik, Anne Grete Eide; Fjelldal, Per Gunnar (Journal article; Peer reviewed, 2020)
      Background In several fish species homozygous and heterozygous clonal lines have been produced using gynogenetic and androgenetic techniques. These lines are standardized and can be reproduced over generations. In rainbow ...

    • Production performance of Atlantic salmon post-smolts in cyclic hypoxia, and following compensatory growth 

      Remen, Mette; Aas, Turis Synnøve; Vågseth, Tone; Torgersen, Thomas; Olsen, Rolf Erik; Imsland, Albert; Oppedal, Frode (Peer reviewed; Journal article, 2014-07)
      This study investigated the production performance of the Atlantic salmon postsmolt (Salmo salar L.) subjected to cyclic oxygen reductions (hypoxia) of varying severity. Triplicate groups (N = 955) were kept at constant ...

    • Salmonid fish: model organisms to study cardiovascular morphogenesis in conjoined twins? 

      Fjelldal, Per Gunnar; Solberg, Monica F.; Hansen, Tom; Vågseth, Tone; Glover, Kevin Alan; Kryvi, Harald (Peer reviewed; Journal article, 2016-07-16)
      Background: There is a gap in knowledge regarding the cardiovascular system in fish conjoined twins, and regarding the cardiovascular morphogenesis of conjoined twins in general. We examined the cardiovascular system in a ...