Browsing Brage IMR by Author "Barlaup, Bjørn Torgeir"

Now showing items 1-18 of 18

    • An extensive common‐garden study with domesticated and wild Atlantic salmon in the wild reveals impact on smolt production and shifts in fitness traits 

      Skaala, Øystein; Besnier, Francois; Borgstrøm, Reidar; Barlaup, Bjørn Torgeir; Sørvik, Anne Grete Eide; Normann, Eirik; Østebø, Britt Iren; Hansen, Michael Møller; Glover, Kevin (Journal article; Peer reviewed, 2019)
      Interactions between domesticated escapees and wild conspecifics represent a threat to the genetic integrity and fitness of native populations. For Atlantic salmon, the recurrent presence of large numbers of domesticated ...

    • Annual report on health monitoring of wild anadromous salmonids in Norway 

      Garseth, Åse Helen; Madhun, Abdullah Sami; Gjessing, Mona Cecilie; Moldal, Torfinn; Gjevre, Anne Gerd; Barlaup, Bjørn Torgeir; Karlsbakk, Egil (Rapport fra Havforskningen;17-2017, Research report, 2017)

    • Direct evidence of increased natural mortality of a wild fish caused by parasite spillback from domestic conspecifics 

      Vollset, Knut; Lennox, Robert; Skoglund, Helge; Karlsen, Ørjan; Normann, Eirik; Wiers, Tore; Stöger, Elisabeth; Barlaup, Bjørn Torgeir (Peer reviewed; Journal article, 2023)
      Parasite spillback from domestic animals can distort the balance between host and parasites in surrounding wildlife, with potential detrimental effects on wild populations. In aquatic environments, parasite spillback from ...

    • Drift diving: A quick and accurate method for assessment of anadromous salmonid spawning populations 

      Skoglund, Helge; Vollset, Knut; Lennox, Robert J.; Skaala, Øystein; Barlaup, Bjørn Torgeir (Peer reviewed; Journal article, 2021)
      The accuracy of drift diving surveys of Atlantic salmon, Salmo salar L. and sea trout, Salmo trutta L., was evaluated by comparing the abundance and size distribution with catches in a fish trap over 6 years in the River ...

    • Estimating the temporal overlap between post-smolt migration of Atlantic salmon and salmon lice infestation pressure from fish farms 

      Vollset, Knut Wiik; Barlaup, Bjørn Torgeir; Mahlum, Shad Kenneth; Bjørn, Pål Arne; Skilbrei, Ove Tommy (Journal article; Peer reviewed, 2016-09-01)

    • Impacts of parasites on marine survival of Atlantic salmon: a meta-analysis 

      Vollset, Knut Wiik; Krontveit, Randi Ingebjørg; Jansen, Peder A; Finstad, Bengt; Barlaup, Bjørn Torgeir; Skilbrei, Ove Tommy; Krkošek, Martin; Romundstad, Pål Richard; Aunsmo, Arnfinn; Jensen, Arne Johan; Dohoo, Ian (Peer reviewed; Journal article, 2016)
      Parasites can, in theory, have large impacts on the survival of fish populations. One method to evaluate such impacts on anadromous species is to apply manipulative field experiments in which parallel groups of antiparasitically ...

    • Natural and anthropogenic drivers of escaped farmed salmon occurrence and introgression into wild Norwegian Atlantic salmon populations 

      Diserud, Ola Håvard; Fiske, Peder; Karlsson, Sten; Glover, Kevin Alan; Næsje, Tor; Aronsen, Tonje; Bakke, Gunnar O; Barlaup, Bjørn Torgeir; Erkinaro, J.; Florø-Larsen, Bjørn; Foldvik, Anders; Heino, Mikko Petteri; Kanstad-Hanssen, Øyvind; Lo, Håvard; Lund, Roar Asbjørn; Muladal, R.; Niemela, E.; Økland, Finn; Østborg, Gunnel Marie; Otterå, Håkon Magne; Skaala, Øystein; Skoglund, Helge; Solberg, Ingrid; Solberg, Monica Favnebøe; Sollien, Vegard Pedersen; Sægrov, Harald; Urdal, Kurt; Wennevik, Vidar; Hindar, Kjetil (Peer reviewed; Journal article, 2022)
      Marine aquaculture of Atlantic salmon (Salmo salar) is a relatively new industry where breeding programs have led to rapid genetic change in the captive populations that were built up alongside conspecific wild individuals. ...

    • Negative impacts of the sea lice prophylactic emamectin benzoate on the survival of hatchery released salmon smolts in rivers 

      Lennox, Robert J.; Salvanes, Anne Gro Vea; Barlaup, Bjørn Torgeir; Stöger, Elisabeth; Madhun, Abdullah; Helle, Turid Myklebust; Vollset, Knut (Peer reviewed; Journal article, 2020)
      Emamectin benzoate (EB) is a prophylactic pharmaceutical used to protect Atlantic salmon (Salmo salar) smolts migrating out of rivers and into the ocean against sea lice parasites. Randomized control trials comparing the ...

    • Occurrence of salmonid alphavirus and piscine orthoreovirus-1 infections in migrating salmon (Salmo salar L.) post-smolt in western Norway 

      Madhun, Abdullah Sami; Nilsen, Rune; Barlaup, Bjørn Torgeir; Karlsen, Ørjan; Karlsbakk, Egil Erlingsson (Peer reviewed; Journal article, 2023)
      Viral diseases are a serious problem in Atlantic salmon (Salmo salar L.) farming in Norway, often leading to reduced fish welfare and increased mortality. Disease outbreaks in salmon farms may lead to spread of viruses to ...

    • Predicting the nationwide outmigration timing of Atlantic salmon (Salmo salar) smolts along 12 degrees of latitude in Norway 

      Vollset, Knut; Lennox, Robert J.; Lamberg, Anders; Skaala, Øystein; Sandvik, Anne Dagrun; Sægrov, Harald; Kvingedal, Eli; Kristensen, Torstein; Jensen, Arne Johan; Haraldstad, Tormod; Barlaup, Bjørn Torgeir; Ugedal, Ola (Peer reviewed; Journal article, 2021)

    • Redningsaksjon for Vossolaksen 2010-2020 -status per 2021 

      Hanssen, Erlend Mjelde; Kambestad, Marius; Normann, Eirik; Espedal, Espen Olsen; Wiers, Tore; Skoglund, Helge; Karlsson, Sten; Wacker, Sebastian; Diserud, Ola Håvard; Gabrielsen, Sven-Erik; Skår, Bjørnar; Vollset, Knut; Haraldstad, Tormod; Stöger, Elisabeth; Helle, Turid Myklebust; Landro, Yngve; Pulg, Ulrich; Lennox, Robert; Nilsen, Cecilie Iden; Postler, Christoph; Lehmann, Gunnar Bekke; Åtland, Åse; Stenberg, Sondre Kvalsvik; Velle, Gaute; Isaksen, Trond Einar; Mahlum, Shad Kenneth; Furnes, Håkon; Borge, Asbjørn; Borge, Arvid; Sandal, Inge; Stranzl, Sebastian Franz; Hoelting, Kristin; Henden, Geir Ove; Lo, Håvard; Bjøru, Bjørn (LFI - Laboratorium for ferskvannsøkologi og innlandsfiske, Research report, 2022)

    • Reference point based management of Norwegian Atlantic salmon populations 

      Forseth, Torbjørn; Fiske, Peder; Barlaup, Bjørn Torgeir; Gjøsæter, Harald; Hindar, Kjetil; Diserud, Ola Håvard (Peer reviewed; Journal article, 2013)
      While management according to biological reference points is well established for many commercial marine fisheries, similar systems for more leisure based fisheries for freshwater fishes are less common. This paper describes ...

    • Regnbueørret (Onchorhynchus mykiss); produksjon og interaksjoner med stedegne arter 

      Skaala, Øystein; Borgstrøm, Reidar; Solberg, Monica Favnebøe; Fiske, Peder; Hindar, Kjetil; Jensen, Arne Johan; Mo, Tor Atle; Sægrov, Harald; Barlaup, Bjørn Torgeir (Rapport fra havforskningen;2020 - 21, Research report, 2020)

    • Rømt oppdrettslaks i vassdrag i 2018 : Rapport fra det nasjonale overvåkningsprogrammet 

      Aronsen, Tonje; Bakke, Gunnar O; Barlaup, Bjørn Torgeir; Berntsen, Johan Henrik Hårdensson; Diserud, Ola Håvard; Fiske, Peder; Fjeldheim, Per Tommy; Larsen, Bjørn Florø; Glover, Kevin; Heino, Mikko Petteri; Husebø, Åse; Næsje, Tor; Skoglund, Helge; Sollien, Vegard Pedersen; Sægrov, Harald; Urdal, Kurt; Wennevik, Vidar (Fisken og Havet;2019 - 4, Research report, 2019)
      Det nasjonale programmet for overvåking av rømt oppdrettslaks, som ble utformet og etablert på oppdrag fra Fiskeridirektoratet etter føringer fra Nærings- og fiskeridepartementet i 2014, har tallfestet innslagene av rømt ...

    • Rømt oppdrettslaks i vassdrag i 2019 : Rapport fra det Nasjonale Overvåkningsprogrammet 

      Aronsen, Tonje; Bakke, Gunnar O; Barlaup, Bjørn Torgeir; Diserud, Ola Håvard; Fiske, Peder; Fjeldheim, Per Tommy; Florø-Larsen, Bjørn; Glover, Kevin; Heino, Mikko Petteri (Fisken og havet;2020 - 3, Research report, 2020)
      I 2014 ble et nytt nasjonalt overvåkningsprogram for rømt oppdrettslaks i vassdrag utformet og etablert på oppdrag fra Fiskeridirektoratet etter føringer fra Nærings- og Fiskeridepartementet. Dette overvåkingsprogrammet ...

    • Rømt oppdrettslaks i vassdrag i 2020 - Rapport fra det nasjonale overvåkningsprogrammet 

      Wennevik, Vidar; Ambjørndalen, Vegard M.; Aronsen, Tonje; Bakke, Gunnar O; Barlaup, Bjørn Torgeir; Diserud, Ola Håvard; Fiske, Peder; Fjeldheim, Per Tommy; Florø-Larsen, Bjørn; Glover, Kevin Alan; Heino, Mikko Petteri; Næsje, Tor; Skaala, Øystein; Skoglund, Helge; Solberg, Ingrid; Solberg, Monica Favnebøe; Sægrov, Harald; Urdal, Kurt; Utne, Kjell Rong (Rapport fra havforskningen;2021 - 27, Research report, 2021)
      I 2014 ble et nytt nasjonalt overvåkningsprogram for rømt oppdrettslaks i vassdrag utformet og etablert på oppdrag fra Fiskeridirektoratet etter føringer fra Nærings- og Fiskeridepartementet. Dette overvåkingsprogrammet ...

    • Swimming with the fishes: validating drift diving to identify farmed Atlantic salmon escapees in the wild 

      Mahlum, Shad Kenneth; Skoglund, Helge; Wiers, Tore; Norman, E. S.; Barlaup, Bjørn Torgeir; Wennevik, Vidar; Glover, Kevin; Urdal, Kurt; Bakke, Gunnar O; Vollset, Knut (Journal article; Peer reviewed, 2019)
      Escaped farmed Atlantic salmon Salmo salar interbreeding with wild conspecifics represents a threat to the genetic integrity and viability of wild populations. Therefore, it is necessary to accurately quantify escapees in ...

    • The major threats to Atlantic salmon in Norway 

      Forseth, Torbjørn; Barlaup, Bjørn Torgeir; Finstad, Bengt; Fiske, Peder; Gjøsæter, Harald; Falkegård, Morten; Hindar, Atle; Mo, Tor Atle; Rikardsen, Audun H.; Thorstad, Eva Bonsak; Vøllestad, Leif Asbjørn; Wennevik, Vidar (Peer reviewed; Journal article, 2017)
      Atlantic salmon (Salmo salar) is an economically and culturally important species. Norway has more than 400 watercourses with Atlantic salmon and supports a large proportion of the world’s wild Atlantic salmon. Atlantic ...