Blar i Institutt for biologi på forfatter "Jensen, Arne Johan"

Viser treff 1-5 av 5

    • Early-season brown trout (Salmo trutta) migrants grow and survive better at sea 

      Jensen, Arne Johan; Diserud, Ola Håvard; Finstad, Bengt; Fiske, Peder; Thorstad, Eva Bonsak (Peer reviewed; Journal article, 2022)
      The timing of seaward migration is a key life-history trait for many anadromous fish species, with growth and survival at sea depending on a match/mismatch scenario between the timing of the sea entry and optimal conditions. ...

    • Large-effect loci mediate rapid adaptation of salmon body size after river regulation 

      Jensen, Arne Johan; Hagen, Ingerid Julie; Czorlich, Yann; Bolstad, Geir Hysing; Bremset, Gunnbjørn; Finstad, Bengt; Hindar, Kjetil; Skaala, Øystein; Karlsson, Sten (Peer reviewed; Journal article, 2022)
      Understanding the potential of natural populations to adapt to altered environments is becoming increasingly relevant in evolutionary research. Currently, our understanding of adaptation to human alteration of the environment ...

    • Modeling salmon lice effects on sea trout population dynamics using an individual-based approach 

      Hedger, Richard David; Diserud, Ola Håvard; Finstad, Bengt; Jensen, Arne Johan; Hendrichsen, Ditte Katrine; Ugedal, Ola; Næsje, Tor (Peer reviewed; Journal article, 2021)
      Salmon lice Lepeophtheirus salmonis infestation of sea trout Salmo trutta results in both additional marine mortality and behavioral changes which may contribute to sea trout population decline. For effective management ...

    • Repeatable individual variation in migration timing in two anadromous salmonids and ecological consequences 

      Jensen, Arne Johan; Finstad, Bengt; Fiske, Peder; Diserud, Ola Håvard; Thorstad, Eva Bonsak (Journal article; Peer reviewed, 2020)
      Consistent individual differences in behavior have been demonstrated for many animals, but there are few studies of consequences of such repeated behavior in the wild. We tested consistency in migration timing to and from ...

    • Salmon louse infestation in wild brown trout populations generates multi-modal mixture distributions 

      Diserud, Ola Håvard; Hedger, Richard David; Finstad, Bengt; Hendrichsen, Ditte Katrine; Jensen, Arne Johan; Ugedal, Ola (Peer reviewed; Journal article, 2020)
      For successful evaluation of the overall effects of salmon louse infestation on brown trout population dynamics, it is crucial to have a realistic understanding of how lice infestation distributions are generated and how ...