• 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 conditions in northern Norwegian fjords: Observations and measurements from three winter seasons, 2017–2020 

      O'Sadnick, Megan; Petrich, Chris; Brekke, Camilla; Skardhamar, Jofrid; Kleven, Øystein (Peer reviewed; Journal article, 2022)
      Freshwater provided by rivers beginning deep within the mountains, feeds into fjords along the coast of Norway, often forming a brackish surface layer that will change in its salinity, thickness, and extent throughout the ...
    • Ice conditions in northern Norwegian fjords: Observations and measurements from three winter seasons, 2017–2020 

      O'Sadnick, Megan; Petrich, Chris; Brekke, Camilla; Skardhamar, Jofrid; Kleven, Øystein (Peer reviewed; Journal article, 2022)
      Freshwater provided by rivers beginning deep within the mountains, feeds into fjords along the coast of Norway, often forming a brackish surface layer that will change in its salinity, thickness, and extent throughout the ...
    • 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 ...
    • Ice Formation in Norwegian Fjords – Findings from the 2018 - 2019 Field Season 

      O'Sadnick, Megan; Petrich, Chris; Kleven, Øystein; Skardhamar, Jofrid; Brekke, Camilla (Chapter, 2020)
      Understanding ice conditions in fjords is imperative to ensure safe operations and to protect the surrounding environment. Seven fjords in northern Norway were visited in March 2019, six with significant ice cover. In each ...
    • 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)
    • Micro- and macro-habitat selection of Atlantic salmon, (Salmo salar), post-smolts in relation to marine environmental cues 

      Jensen, Jenny Lovisa Alexandra; Strøm, John Fredrik; Nikolopoulos, Anna; Primicerio, Raul; Skardhamar, Jofrid; Atencio, Benjamin J.; Strand, Jo Espen Tau; Bjørn, Pål Arne; Bøhn, Thomas (Peer reviewed; Journal article, 2022)
      Atlantic salmon is an economically and culturally important species. The species encounters several natural and man-made threats during its migration between fresh water and the ocean, which in combination may explain its ...
    • Micro- and macro-habitat selection of Atlantic salmon, Salmo salar, post-smolts in relation to marine environmental cues 

      Jensen, Jenny Lovisa Alexandra; Strøm, John Fredrik; Nikolopoulos, Anna; Primicerio, Raul; Skardhamar, Jofrid; Atencio, Benjamin J.; Strand, Jo Espen Tau; Bjørn, Pål Arne; Bøhn, Thomas (Peer reviewed; Journal article, 2022)
      Atlantic salmon is an economically and culturally important species. The species encounters several natural and man-made threats during its migration between fresh water and the ocean, which in combination may explain its ...
    • 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 ...
    • Modellert påvirkning av lakselus på vill laksefisk 

      Lien, Vidar Surén; Johnsen, Ingrid Askeland; Sandvik, Anne Dagrun; Sævik, Pål Næverlid; Skardhamar, Jofrid (Rapport fra havforskningen;2022 - 36, Research report, 2022)
      For å estimere påvirkningen lakselus fra oppdrett har på vill laksefisk langs hele norskekysten er det utviklet en rekke modellprodukt. Modellproduktene presentert i denne rapporten er ment å bli vurdert sammen med ...
    • Modellert påvirkning av lakselus på vill laksefisk i 2023 

      Skardhamar, Jofrid; Sandvik, Anne Dagrun; Johnsen, Ingrid Askeland; Sævik, Pål Næverlid; Lien, Vidar Surén (Rapport fra havforskningen;2023 - 57, Research report, 2023)
      I denne rapporten presenteres Havforskningsinstituttets modellprodukter til Trafikklysvurderingen; modellert smittepress og påslag av lus på utvandrende postsmolt langs hele norskekysten. Modellproduktene er ment å bli ...