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    • Salmon lice threaten growth, osmoregulation and survival in anadromous Arctic char post-smolts 

      Fjelldal, Per Gunnar; Hansen, Tom Johnny; Karlsen, Ørjan; Wright, Daniel William (Peer reviewed; Journal article, 2019)
      High salmon lice (Lepeophtheirus salmonis) infestation levels resulting from intensive salmonid sea-cage aquaculture can threaten populations of wild salmonid hosts. This includes anadromous Arctic char (Salvelinus alpinus), ...

    • Salmon lice treatments and salmon mortality in Norwegian aquaculture: a review 

      Overton, Kathy; Dempster, Tim; Oppedal, Frode; Kristiansen, Tore S; Gismervik, Kristine; Stien, Lars Helge (Journal article; Peer reviewed, 2018)
      With the expansion of Atlantic salmon aquaculture, the economic and ecological impacts of salmon lice (Lepeophtheirus salmonis) has increased. Norway battles this problematic parasite with various control and preventative ...

    • Salmon lice – impact on wild salmonids and salmon aquaculture 

      Torrissen, Ole; Jones, S.; Asche, F.; Guttormsen, A.; Skilbrei, Ove; Nilsen, Frank; Horsberg, T. E.; Jackson, D. (Journal article; Peer reviewed, 2013-01-13)
      Salmon lice, Lepeophtheirus salmonis, are naturally occurring parasites of salmon in sea water. Intensive salmon farming provides better conditions for parasite growth and transmission compared with natural conditions, ...

    • Salmon lice-induced mortality of Atlantic salmon during post-smolt migration in Norway 

      Johnsen, Ingrid Askeland; Harvey, Alison C.; Sævik, Pål Næverlid; Sandvik, Anne Dagrun; Ugedal, Ola; Ådlandsvik, Bjørn; Wennevik, Vidar; Glover, Kevin; Karlsen, Ørjan (Peer reviewed; Journal article, 2020)

    • The salmon louse genome may be much larger than sequencing suggests. 

      Wyngaard, Grace; Skern-Mauritzen, Rasmus; Malde, Ketil; Prendergast, Rachel; Peruzzi, Stefano (Peer reviewed; Journal article, 2022)
      The genome size of organisms impacts their evolution and biology and is often assumed to be characteristic of a species. Here we present the first published estimates of genome size of the ecologically and economically ...

    • The salmon louse genome: Copepod features and parasitic adaptations 

      Skern-Mauritzen, Rasmus; Malde, Ketil; Eichner, Christiane; Dondrup, Michael; Furmanek, Tomasz; Besnier, Francois; Komisarczuk, Anna Zofia; Nuhn, Michael; Dalvin, Sussie; Edvardsen, Rolf Brudvik; Klages, Sven; Huettel, Bruno; Stueber, Kurt; Grotmol, Sindre; Karlsbakk, Egil Erlingsson; Kersey, Paul; Leong, Jong S; Glover, Kevin Alan; Reinhardt, Richard; Lien, Sigbjørn; Jonassen, Inge; Koop, Ben F; Nilsen, Frank (Peer reviewed; Journal article, 2021)
      Copepods encompass numerous ecological roles including parasites, detrivores and phytoplankton grazers. Nonetheless, copepod genome assemblies remain scarce. Lepeophtheirus salmonis is an economically and ecologically ...

    • Salmon louse infestation levels on sea trout can be predicted from a hydrodynamic lice dispersal model 

      Bøhn, Thomas; Nilsen, Rune; Gjelland, Karl Øystein; Biuw, Martin; Sandvik, Anne Dagrun; Primicerio, Raul; Karlsen, Ørjan; Serra Llinares, Rosa Maria (Peer reviewed; Journal article, 2021)
      The abundance of the parasitic salmon louse has increased with the growth in aquaculture of salmonids in open net pens. This represents a threat to wild salmonid populations as well as a key limiting factor for salmon ...

    • Salmonid alphavirus infection causes skin dysbiosis in Atlantic salmon (Salmo salar L.) post-smolts 

      Reid, Kristin M; Patel, Sonal; Robinson, Aaron J; Bu, Lijing; Jarungsriapisit, Jiraporn; Moore, Lindsey; Salinas, Irene (Peer reviewed; Journal article, 2017)

    • Sampling of Atlantic salmon using the Norwegian Quality cut (NQC) vs. Whole fillet; differences in contaminant and nutrient contents 

      Nøstbakken, Ole Jakob; Moxness Reksten, Amalie; Hannisdal, Rita; Dahl, Lisbeth; Duinker, Arne (Peer reviewed; Journal article, 2023)
      Risk- benefit assessments of seafood require high-quality food composition data. In accordance with EU regulations, Atlantic salmon (Salmo salar) has conventionally been sampled using the Norwegian Quality Cut (NQC), a ...

    • 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 ...

    • Sampling protocol for the determination of nutrients and contaminants in fish and other seafood – The EAF-Nansen Programme 

      Reksten, Amalie Moxness; Bøkevoll, Annbjørg; Frantzen, Sylvia; Lundebye, Anne-Katrine; Kögel, Tanja; Kolås, Kjersti; Aakre, Inger; Kjellevold, Marian (Peer reviewed; Journal article, 2020)
      Seafood plays a central role in global food and nutrition security. However, there is a lack of data on the concentration of nutrients and contaminants in fish and other seafood, especially in low- and middle-income ...

    • Sandbanks, sandwaves and megaripples on Spitsbergenbanken, Barents Sea 

      Bellec, Valérie K.; Bøe, Reidulv; Bjarnadóttir, Lilja Rún; Albretsen, Jon; Dolan, Margaret F.J.; Chand, Shyam; Thorsnes, Terje; Jakobsen, Frank Werner; Nixon, Chantel; Plassen, Liv; Jensen, Henning; Baeten, Nicole Jeanne; Olsen, Heidi; Elvenes, Sigrid (Journal article; Peer reviewed, 2019)
      Recently acquired multibeam echosounder data from the shallowest part (26–53 m depth) of Spitsbergenbanken in the western Barents Sea reveal a variety of bedforms, including megaripples, sandwaves and sandbanks. The bedforms ...

    • Sarcotretes scopeli, a lernaeid copepod new to Norway 

      Gjøsæter, Jakob (Journal article; Peer reviewed, 1971-09-10)
      Sarcotretes scopeli, parasitic on Benthosema glaciale, is recorded for the first time in Norway. 3.6% of the catch from the Bergen area and 1.9% from Sognefjorden was infested. The parasite seems to retard the growth and ...

    • Scandinavium goeteborgense gen. nov., sp. nov., a New Member of the Family Enterobacteriaceae Isolated From a Wound Infection, Carries a Novel Quinolone Resistance Gene Variant 

      Marathe, Nachiket; Salvà-Serra, Francisco; Karlsson, Roger; Larsson, DG Joakim; Moore, Edward RB; Svensson-Stadler, Liselott; Jakobsson, Hedvig E. (Journal article; Peer reviewed, 2019)
      The family Enterobacteriaceae is a taxonomically diverse and widely distributed family containing many human commensal and pathogenic species that are known to carry transferable antibiotic resistance determinants. ...

    • Schooling of the vertically migrating mesopelagic fish Maurolicus muelleri in light summer nights 

      Kaartvedt, Stein; Knutsen, Tor; Holst, Jens Christian (Journal article; Peer reviewed, 1998-09-03)
      Vertically migrating Maurolicus muelleri arrested their nocturnal ascent below the peak zooplankton concentrations during Light summer nights at 62 degrees N. At 69 degrees N, the behavior was further modified, with M, ...

    • Screening and characterisation of potentially pathogenic bacteria associated with Atlantic cod Gadus morhua larvae: bath challenge trials using a multidish system 

      Sandlund, Nina; Bergh, Øivind (Peer reviewed; Journal article, 2008-09-24)
      In intensive aquaculture systems, high concentrations of nutrients and high densities of fish larvae provide favorable conditions for opportunistic pathogenic bacteria to flourish. We screened potentially pathogenic ...

    • Screening for Viral Hemorrhagic Septicemia Virus in Marine Fish along the Norwegian Coastal Line 

      Sandlund, Nina; Gjerset, Britt; Bergh, Øyvind; Modahl, Ingebjørg; Olesen, Niels Jørgen; Johansen, Renate (Journal article; Peer reviewed, 2014-09-23)
      Viral hemorrhagic septicemia virus (VHSV) infects a wide range of marine fish species. To study the occurrence of VHSV in wild marine fish populations in Norwegian coastal waters and fjord systems a total of 1927 fish from ...

    • Screening of Norwegian lobsters Homarus gammarus for the lobster pathogen Aerococcus viridans 

      Wiik, Ragnhild; Egidius, Emmy; Goksøyr, Jostein (Journal article; Peer reviewed, 1987-12-14)
      Hemolymph samples drawn from 3044 lobsters trapped along the southwestern part of the Norwegian coast in the period 1981 to 1984 were individually examined for Aerococcus viridans, the causative agent of gaffkemia. In ...

    • A Screening Study on Effects Varying Dietary Macronutrient Composition on Gut Functions in Lumpfish (Cyclopterus lumpus) 

      Zhou, Weiwen; Hamre, Kristin; Chikwati, Elvis Mashingaidze; Kousoulaki, Katerina; Lein, Ingrid; Berge, Gerd Marit; Sæle, Øystein; Kortner, Trond M.; Krogdahl, Åshild (Peer reviewed; Journal article, 2022)
      Cultivation of lumpfish (Cyclopterus lumpus) as lice cleaner fish for salmon is now expanding. For successful cultivation of a new species, understanding the basic biology of digestive functions is vital to facilitate and ...

    • Sea Ice and Substratum Shape Extensive Kelp Forests in the Canadian Arctic 

      Filbee-Dexter, Karen; MacGregor, Kathleen A.; Lavoie, Camille; Garrido, Ignacio; Goldsmit, Jesica; Castro de la Guardia, Laura; Howland, Kimberly L.; Johnson, Ladd E.; Konar, Brenda; McKindsey, Christopher W.; Mundy, Christopher J.; Schlegel, Robert W.; Archambault, Philippe (Peer reviewed; Journal article, 2022)
      The coastal zone of the Canadian Arctic represents 10% of the world’s coastline and is one of the most rapidly changing marine regions on the planet. To predict the consequences of these environmental changes, a better ...