• An effective method for the recapture of escaped farmed salmon 

      Chittenden, Cedar; Rikardsen, Audun H.; Skilbrei, Ove Tommy; Davidsen, Jan Grimsrud; Halttunen, Elina; Skardhamar, Jofrid; McKinley, R. Scott (Journal article; Peer reviewed, 2011)
      The search for effective strategies to prevent and mitigate accidental releases of aquaculture fishes is on-going. To test a new recapture strategy and evaluate the individual dispersal behaviour of escaped farmed Atlantic ...
    • Diurnal tides on the Barents Sea continental slope 

      Skardhamar, Jofrid; Skagseth, Øystein; Albretsen, Jon (Journal article; Peer reviewed, 2014-12-10)
      Measurements of diurnal tides over the continental slope between the Norwegian Sea and the Barents Sea shelf are presented. Numerical 3D simulations, in agreement with field data, show strong cross-slope velocities and ...
    • Evaluation of a national operational salmon lice monitoring system - from physics to fish 

      Myksvoll, Mari Skuggedal; Sandvik, Anne Dagrun; Albretsen, Jon; Asplin, Lars; Johnsen, Ingrid Askeland; Karlsen, Ørjan; Kristensen, Nils Melsom; Melsom, Arne; Skardhamar, Jofrid; Ådlandsvik, Bjørn (Journal article; Peer reviewed, 2018)
      The Norwegian government has decided that the aquaculture industry shall grow, provided that the growth is environmentally sustainable. Sustainability is scored based on the mortality of wild salmonids caused by the parasitic ...
    • From above and standing atop- two views of Norwegian fjord ice 

      O'Sadnick, Megan; Petrich, Chris; Brekke, Camilla; Skardhamar, Jofrid (Lecture, 2020)
    • Hydrodynamisk spredningsmodell for lakselus og konsentrasjon av smittsomme kopepoditter 

      Sandvik, Anne Dagrun; Asplin, Lars; Albretsen, Jon; Bjørn, Pål Arne; Johnsen, Ingrid Askeland; Skardhamar, Jofrid; Myksvoll, Mari Skuggedal; Ådlandsvik, Bjørn (Rapport fra havforskningen;Nr. 12 - 2017, Research report, 2017)
    • Ice extent in sub-arctic fjords and coastal areas from 2001 to 2019 analyzed from MODIS imagery 

      O'Sadnick, Megan Eileen; Petrich, Chris; Brekke, Camilla; Skardhamar, Jofrid (Peer reviewed; Journal article, 2020)
      Results examining variations in the ice extent along the Norwegian coastline based on the analysis of Moderate Resolution Imaging Spectroradiometer (MODIS) images from 2001 to 2019,February through May, are presented. A ...
    • Impact of variable physical conditions and future increased aquaculture production on lice infestation pressure and its sustainability in Norway 

      Myksvoll, Mari Skuggedal; Sandvik, Anne Dagrun; Johnsen, Ingrid A.; Skardhamar, Jofrid; Albretsen, Jon (Peer reviewed; Journal article, 2020)
      Salmon lice infestation is a challenge for wild post-smolt salmon during migration from their natal river to the sea in several regions of Norway. The traffic-light management system regulates growth in the aquaculture ...
    • Impact of variable physical conditions and future increased aquaculture production on lice infestation pressure and its sustainability in Norway 

      Myksvoll, Mari Skuggedal; Sandvik, Anne Dagrun; Johnsen, Ingrid Askeland; Skardhamar, Jofrid; Albretsen, Jon (Peer reviewed; Journal article, 2020)
      Salmon lice infestation is a challenge for wild post-smolt salmon during migration from their natal river to the sea in several regions of Norway. The traffic-light management system regulates growth in the aquaculture ...
    • Kunnskapsstatus lakselus 2020 - Effekt av lakselus på vill laksefisk (2010-2019) 

      Karlsen, Ørjan; Albretsen, Jon; Asplin, Lars; Bjørn, Pål Arne; Bøhn, Thomas; Johnsen, Ingrid Askeland; Lehmann, Gunnar Bekke; Myksvoll, Mari Skuggedal; Nilsen, Rune; Sandvik, Anne Dagrun; Serra Llinares, Rosa Maria; Skardhamar, Jofrid; Ådlandsvik, Bjørn (Rapport fra havforskningen;2020 - 23, Research report, 2020)
    • Modelled drift patterns of fish larvae link coastal morphology to seabird colony distribution 

      Sandvik, Hanno; Barrett, Robert T; Erikstad, Kjell E; Myksvoll, Mari Skuggedal; Vikebø, Frode Bendiksen; Yoccoz, Nigel Gilles; Anker-Nilssen, Tycho; Lorentsen, Svein-Håkon; Reiertsen, Tone; Skardhamar, Jofrid; Skern-Mauritzen, Mette; Systad, Geir Helge (Journal article; Peer reviewed, 2016-05-13)
      Colonial breeding is an evolutionary puzzle, as the benefits of breeding in high densities are still not fully explained. Although the dynamics of existing colonies are increasingly understood, few studies have addressed ...
    • Modelled drift patterns of fish larvae link coastal morphology to seabird colony distribution 

      Sandvik, Hanno; Barrett, Robert T; Erikstad, Kjell E; Myksvoll, Mari Skuggedal; Vikebø, Frode Bendiksen; Yoccoz, Nigel Gilles; Anker-Nilssen, Tycho; Lorentsen, Svein-Håkon; Reiertsen, Tone; Skardhamar, Jofrid; Skern-Mauritzen, Mette; Systad, Geir Helge (Journal article; Peer reviewed, 2016-05-13)
      Colonial breeding is an evolutionary puzzle, as the benefits of breeding in high densities are still not fully explained. Although the dynamics of existing colonies are increasingly understood, few studies have addressed ...
    • Modelled salmon lice dispersion and infestation patterns in a sub-arctic fjord 

      Skardhamar, Jofrid; Albretsen, Jon; Sandvik, Anne Dagrun; Lien, Vidar Surén; Myksvoll, Mari Skuggedal; Johnsen, Ingrid Askeland; Asplin, Lars; Ådlandsvik, Bjørn; Halttunen, Elina; Bjørn, Pål Arne (Journal article; Peer reviewed, 2018)
      Salmon lice infestation is a major challenge for the aquaculture industry in Norway, threatening wild salmonid populations and causing welfare problems for farmed salmon. Lice dispersion and infestation patterns are simulated ...
    • Modellering av smittsomme lakseluslarver - bakgrunnsdata for Havforskningsinstituttets modellprodukt til Trafikklyssystemet, 2019 

      Sandvik, Anne Dagrun; Asplin, Lars; Skardhamar, Jofrid (Rapport fra havforskningen;2019 - 53, Research report, 2019)
      Siden det er praktisk umulig å få en fullstendig oversikt over luseinfeksjoner på laksefisk langs hele kysten ved hjelp av tradisjonelle feltobservasjoner, har Havforskningsinstituttet utviklet en lakselusmodell som utfyller ...
    • Modelling salmon lice copepodids along the Norwegian coast – comparing old and new particle tracking models 

      Myksvoll, Mari Skuggedal; Asplin, Lars; Sandvik, Anne Dagrun; Johnsen, Ingrid Askeland; Ådlandsvik, Bjørn; Albretsen, Jon; Skardhamar, Jofrid (Rapport fra havforskningen;39-2018, Research report, 2018)
    • Påvirkning fra lakselus på vill laksefisk - ROC, estimert fra luselarvefelt med stor variabilitet 

      Sandvik, Anne Dagrun; Skardhamar, Jofrid; Myksvoll, Mari Skuggedal; Skogen, Morten D.; Asplin, Lars (Rapport fra havforskningen;2019 - 52, Research report, 2019)
      For å beregne hvor i fjordene og langs kysten der er så mye lakselus i vannmassene at det vil gjøre skalde på ville laksefisker som svømmer gjennom eller oppholder seg i området har vi utviklet en metode som regner om fra ...
    • Sampling planktonic salmon lice in Norwegian fjords 

      Skardhamar, Jofrid; Fagerli, Margrethe Nilsen; Reigstad, Marit; Sandvik, Anne Dagrun; Bjørn, Pål Arne (Journal article; Peer reviewed, 2019)
      Risk of mortality of wild salmon caused by salmon lice is used as an index for managing aquaculture production in Norway and is based on monitoring of lice attached to wild salmonids and modelled concentrations of lice ...
    • Sea trout adapt their migratory behaviour in response to high salmon lice concentrations 

      Halttunen, Elina; Gjelland, Karl Øystein; Hamel, Sandra; Serra-Llinares, Rosa Maria; Nilsen, Rune; Arechavala-Lopez, Pablo; Skardhamar, Jofrid; Johnsen, Ingrid Askeland; Asplin, Lars; Karlsen, Ørjan; Bjørn, Pål Arne; Finstad, Bengt (Peer reviewed; Journal article, 2017)
      Sea trout face growth – mortality trade-offs when entering the sea to feed. Salmon lice epizootics resulting from aquaculture have shifted these trade-offs, as salmon lice might both increase mortality and reduce growth ...
    • Smittepress fra lakselus på vill laksefisk – estimert fra luselarvefelt med stor variabilitet 

      Sandvik, Anne Dagrun; Asplin, Lars; Bjørn, Pål Arne; Johnsen, Ingrid Askeland; Skardhamar, Jofrid; Myksvoll, Mari Skuggedal; Ådlandsvik, Bjørn; Skogen, Morten D. (Rapport fra havforskningen;Nr. 13 - 2017, Research report, 2017)
    • Toward a model-based prediction system for salmon lice infestation pressure 

      Sandvik, Anne Dagrun; Bjørn, Pål Arne; Ådlandsvik, Bjørn; Asplin, Lars; Skardhamar, Jofrid; Johnsen, Ingrid Askeland; Myksvoll, Mari Skuggedal; Skogen, Morten D. (Journal article; Peer reviewed, 2016-09-08)
      High salmon lice density is a threat to wild and farmed salmonid fish in Norway. To assess and identify areas for high salmon lice infestation pressure, continuous monitoring is necessary. The national Norwegian salmon ...