Blar i Bergen Open Research Archive på forfatter "Sægrov, Harald"

Viser treff 1-5 av 5

    • Domesticated escapees on the run: The second-generation monitoring programme reports the numbers and proportions of farmed Atlantic salmon in >200 Norwegian rivers annually 

      Glover, Kevin; Urdal, Kurt; Næsje, Tor; Skoglund, Helge; Florø-Larsen, Bjørn; Otterå, Håkon Magne; Fiske, Peder; Heino, Mikko Petteri; Aronsen, Tonje; Sægrov, Harald; Diserud, Ola Håvard; Barlaup, Bjørn Torgeir; Hindar, Kjetil; Bakke, Gunnar O; Solberg, Ingrid; Lo, Håvard; Solberg, Monica Favnebøe; Karlsson, Sten; Skaala, Øystein; Lamberg, Anders; Kanstad-Hanssen, Øyvind; Muladal, Rune; Skilbrei, Ove Tommy; Wennevik, Vidar (Peer reviewed; Journal article, 2019)
      Norway is the world’s largest producer of farmed Atlantic salmon and is home to ∼400 rivers containing wild salmon populations. Farmed escapees, a reoccurring challenge of all cage-based marine aquaculture, pose a threat ...

    • Improving Salmonid Monitoring by Nocturnal Counting in Rivers 

      Kambestad, Marius; Hellen, Bjart Are; Jensen, Knut Helge; Sægrov, Harald (Journal article; Peer reviewed, 2022)
      Accurate abundance estimates are crucial for evidence-based fisheries management. In rivers, drift dive counting and electrofishing are commonly used for quantifying fish abundance. However, the likelihood that fish are ...

    • Inferring Atlantic salmon post-smolt migration patterns using genetic assignment 

      Harvey, Alison C.; Sanchez, Maria Quintela; Glover, Kevin; Karlsen, Ørjan; Nilsen, Rune; Skaala, Øystein; Sægrov, Harald; Kolås, Steinar; Knutar, Sofie; Wennevik, Vidar (Peer reviewed; Journal article, 2019)
      Understanding migratory patterns is important for predicting and mitigating unwanted consequences of environmental change or anthropogenic challenges on vulnerable species. Wild Atlantic salmon undergo challenging migrations ...

    • Time series covering up to four decades reveals major changes and drivers of marine growth and proportion of repeat spawners in an Atlantic salmon population 

      Harvey, Alison C.; Skaala, Øystein; Borgstrøm, Reidar; Andersen-Fjeldheim, Per Tommy; Andersen-Fjeldheim, Kaja Christine; Utne, Kjell Rong; Johnsen, Ingrid Askeland; Fiske, Peder; Winterthun, Synnøve; Knutar, Sofie; Sægrov, Harald; Urdal, Kurt; Glover, Kevin Alan (Journal article; Peer reviewed, 2022)
      Wild Atlantic salmon populations have declined in many regions and are affected by diverse natural and anthropogenic factors. To facilitate management guidelines, precise knowledge of mechanisms driving population changes ...

    • Vurdering av lakselusindusert villfiskdødelighet per produksjonsområde i 2016 og 2017 

      Nilsen, Frank; Ellingsen, Ingrid; Finstad, Bengt; Jansen, Peder A.; Karlsen, Ørjan; Kristoffersen, Anja B.; Sandvik, Anne D.; Sægrov, Harald; Ugedal, Ola; Vollset, Knut W.; Myksvoll, Mari Skuggedal (Research report, 2017)
      Ekspertgruppen ble i mars 2017 oppnevnt for ett år for å foreta en vurdering av lakselusindusert dødelighet på villfisk i 13 produksjonsområder i Norge. En foreløpig rapport basert på data fra 2016 ble levert i april 2017 ...