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  • Lakselusinfestasjon på vill laksefisk langs Norskekysten i 2021 - Med foreløpige data fra fokusområder 

    Nilsen, Rune; Serra Llinares, Rosa Maria; Sandvik, Anne Dagrun; Mohn, Agnes Marie; Harvey, Alison C.; Uglem, Ingebrigt; Lehmann, Gunnar Bekke; Karlsen, Ørjan (Rapport fra havforskningen;2021 - 56, Research report, 2021)
    Overvåkingsprogrammet for lakselus på vill laksefisk (NALO) er i 2021 gjennomført på oppdrag fra Mattilsynet (MT) og Nærings- og Fiskeridepartementet (NFD). En hydrodynamisk spredningsmodell som beregner tetthet av infektive ...
  • Estimert dødelighet for utvandrende postsmolt av laks 2012-2021 — Rapport til Mattilsynet OK-program 56827 – Lakselusovervåking 

    Johnsen, Ingrid Askeland; Karlsen, Ørjan (Rapport fra havforskningen;2021 - 53, Research report, 2021)
    For å estimere dødeligheten grunnet lakselus sluppet fra oppdrettsanlegg til utvandrende postsmolt av laks fra de lakseførende elvene med gytende biomasse > 10 kg i de 13 ulike produksjonsområdene, er det benyttet en ...
  • Utvikling av fiske ved oppdrettsanlegg - Sluttrapport FHF 

    Humborstad, Odd Børre; Løkkeborg, Svein; Utne-Palm, Anne Christine; Saltskår, Jostein; Siikavuopio, Sten Ivar; Hustad, Anette; Bjørkevoll, Ingebrigt; Helgesen, Paul Jacob (Rapport fra havforskningen;2021 - 58, Research report, 2021)
    Prosjektet “Utvikling av fiske ved oppdrettsanlegg” er et samarbeidsprosjekt mellom forskere, oppdrettere, fiskere og fiskekjøpere. A kvakulturregelverket forbyr fiske nærmere enn 100 meter fra flytende oppdrettsanlegg ...
  • Rapport frå det nasjonale elvelaboratoriet i Guddalselva 2021 - Elvemiljø, smoltutvandring og gytebestandar av laks (Salmo salar) og sjøaure (Salmo trutta) 

    Aannø, William Aure; Østebø, Britt Iren; Skaala, Øystein (Rapport fra havforskningen;2021 - 57, Research report, 2021)
    I Guddalselva er det installert ei heildekkande smoltfelle (Wolf type) som fangar smolten på veg ut i sjøen. Dette gjer at vi får representative uttak av mengde smolt produsert i elva. Elva har også ei fisketrapp som vert ...
  • Loss of stra8 Increases Germ Cell Apoptosis but Is Still Compatible With Sperm Production in Atlantic Salmon (Salmo salar) 

    Skaftnesmo, Kai Ove; Crespo, Diego; Kleppe, Lene; Andersson, Eva; Edvardsen, Rolf Brudvik; Norberg, Birgitta; Fjelldal, Per Gunnar; Hansen, Tom Johnny; Schulz, Rüdiger W.; Wargelius, Anna (Peer reviewed; Journal article, 2021)
    Entering meiosis strictly depends on stimulated by retinoic acid 8 (Stra8) gene function in mammals. This gene is missing in a number of fish species, including medaka and zebrafish, but is present in the majority of fishes, ...
  • Xenobiotic metabolism and its physiological consequences in high-Antarctic Notothenioid fishes 

    Strobel, Anneli; Lille-Langøy, Roger; Segner, Helmut; Burkhardt-Holm, Patricia; Goksøyr, Anders; Karlsen, Odd André (Peer reviewed; Journal article, 2021)
    The Antarctic ecosystem is progressively exposed to anthropogenic contaminants, such as polycyclic aromatic hydrocarbons (PAHs). So far, it is largely unknown if PAHs leave a mark in the physiology of high-Antarctic fish. ...
  • Combining Ecosystem and Single-Species Modeling to Provide Ecosystem-Based Fisheries Management Advice Within Current Management Systems. 

    Howell, Daniel; Schueller, Amy M.; Bentley, Jacob W.; Buchheister, Andre; Chagaris, David; Cieri, Matthew; Drew, Katie; Lundy, Mathieu; Pedreschi, Debbi; Reid, David; Townsend, Howard (Peer reviewed; Journal article, 2021)
    Although many countries have formally committed to Ecosystem-Based Fisheries Management (EBFM), actual progress toward these goals has been slow. This paper presents two independent case studies that have combined strategic ...
  • Triploid Atlantic salmon and triploid Atlantic salmon × brown trout hybrids have better freshwater and early seawater growth than diploid counterparts 

    Fraser, Thomas; Lerøy, Hilde; Hansen, Tom Johnny; Skjæraasen, Jon Egil; Tronci, Valentina; Pinto Pedrosa, Cindy; Fjelldal, Per Gunnar; Nilsen, Tom Ole (Peer reviewed; Journal article, 2021)
    The use of reproductively sterile triploid salmonids would enhance the environmental sustainability of the aquaculture industry by preventing genetic exchange between escapees and wild conspecifics. To this end, we assessed ...
  • Movement patterns of temperate wrasses (Labridae) within a small marine protected area 

    Halvorsen, Kim Aleksander Tallaksen; Larsen, Torkel; Browman, Howard; Durif, Caroline; Aasen, Nicolai; Vøllestad, Leif Asbjørn; Cresci, Alessandro; Sørdalen, Tonje Knutsen; Bjelland, Reidun Marie; Skiftesvik, Anne Berit (Peer reviewed; Journal article, 2021)
    The movement patterns of three commercially important wrasse (Labridae) species inside a small marine protected area (~ 0.15 km2) on the west coast of Norway were analysed over a period of 21 months. The mean distance ...
  • Spatial response of hard- and mixed-bottom benthic epifauna to organic enrichment from salmon aquaculture in northern Norway 

    Dunlop, Katherine Mary; Harendza, Astrid; Bannister, Raymond; Keeley, Nigel B. (Peer reviewed; Journal article, 2021)
    Norwegian Atlantic salmon aquaculture is continuing to expand in northern regions dominated by hard- and mixed-bottom substrates. Such habitats contain rich benthic epifaunal communities, including sponges and other sessile ...
  • Nordic Seas Heat Loss, Atlantic Inflow, and Arctic Sea Ice cover over the last century 

    Smedsrud, Lars Henrik; Muilwijk, Morven; Eldevik, Tor; Årthun, Marius; Brakstad, Ailin; Madonna, Erica; Lauvset, Siv Kari; Spensberger, Clemens; Born, Andreas; Drange, Helge; Jeansson, Emil; Li, Camille; Olsen, Are; Skagseth, Øystein; Slater, Donald; Straneo, Fiammetta; Våge, Kjetil (Peer reviewed; Journal article, 2021)
    Poleward ocean heat transport is a key process in the earth system. We detail and review the northward Atlantic Water (AW) flow, Arctic Ocean heat transport, and heat loss to the atmosphere since 1900 in relation to sea ...
  • What is The Limit of Sustained Swimming in Atlantic Salmon Post smolts? 

    Hvas, Malthe; Folkedal, Ole; Oppedal, Frode (Peer reviewed; Journal article, 2021)
    A trend in Atlantic salmon aquaculture is to establish new production sites that are susceptible to extreme weather conditions; however, strong and persistent water currents may compromise fish welfare. Defining acceptable ...
  • Refining fisheries advice with stock-specific ecosystem information 

    Bentley, Jacob W.; Lundy, Mathiew; Howell, Daniel; Beggs, Steven E.; Bundy, Alida; Castro, Franscisco de; Fox, Clive; Heymans, Johanna; Lynam, Christopher; Pedreschi, Debbi; Schuchert, Pia; Serpetti, Natalia; Woodlock, Johnny; Reid, David (Peer reviewed; Journal article, 2021)
    Although frequently suggested as a goal for ecosystem-based fisheries management, incorporating ecosystem information into fisheries stock assessments has proven challenging. The uncertainty of input data, coupled with the ...
  • Tradeoffs of managing cod as a sustainable resource in fluctuating environments 

    Goto, Daisuke; Filin, Anatoly A.; Howell, Daniel; Bogstad, Bjarte; Kovalev, Yuri A.; Gjøsæter, Harald (Peer reviewed; Journal article, 2021)
    Sustainable human exploitation of living marine resources stems from a delicate balance between yield stability and population persistence to achieve socioeconomic and conservation goals. But our imperfect knowledge of how ...
  • A meta-analysis on the nutritional value of insects in aquafeeds 

    Liland, Nina Sylvia; Araujo, Pedro; Xu, X.X.; Lock, Erik Jan Robert; Radhakrishnan, Gowtham; Prabhu, P. Antony Jesu; Belghit, Ikram (Peer reviewed; Journal article, 2021)
    A major challenge for development of sustainable aquafeeds is its dependence on fish meal and fish oil. Similarly, it is unwanted to include more plant ingredients which adds more pressure on resources like arable land, ...
  • Marine Citizen Science: Current State in Europe and New Technological Developments 

    Garcia-Soto, Carlos; Seys, Jan; Zielinski, Oliver; Busch, J.A.; Luna, S.I.; Baez, Jose Carlos; Domegan, C.; Dubsky, K.; Kotynska-Zielinska, I.; Loubat, P.; Malfatti, Francesca; Mannaerts, G.; McHugh, Patricia; Monestiez, Pascal; van der Meeren, Gro Ingleid; Gorsky, Gabriel (Peer reviewed; Journal article, 2021)
    Marine citizen science is emerging with promising opportunities for science, policy and public but there is still no comprehensive overview of the current state in Europe. Based on 127 projects identified for the North Sea ...
  • Shaping sustainable harvest boundaries for marine populations despite estimation bias 

    Goto, Daisuke; Devine, Jennifer Ann; Umar, Ibrahim; Fischer, Simon; Oliveira, Jose; Howell, Daniel; Jardim, Ernesto; Mosquiera, Iago; Ono, Kotaro (Peer reviewed; Journal article, 2021)
    Biased estimates of population status are a pervasive conservation problem. This problem has plagued assessments of commercial exploitation of marine species and can threaten the sustainability of both populations and ...
  • Protective Immunization of Atlantic Salmon (Salmo salarL.)against Salmon Lice (Lepeophtheirus salmonis) Infestation 

    Tartor, Haitham; Karlsen, Marius; Skern-Mauritzen, Rasmus; Monjane, Adérito Luis; Press, Charles McLean; Wiik-Nielsen, Christer R.; Olsen, Rolf Hetlelid; Leknes, Lisa Marie; Yttredal, Karine Lindmo; Brudeseth, Bjørn Erik; Grove, Søren (Peer reviewed; Journal article, 2021)
    Vaccination against salmon lice (Lepeophtheirus salmonis) is a means of control that averts the negative effects of chemical approaches. Here, we studied the immunogenicity and protective effect of a vaccine formulation ...
  • Genetic differentiation between inshore and offshore populations of northern shrimp (Pandalus borealis) 

    Hansen, Agneta; Westgaard, Jon-Ivar; Søvik, Guldborg; Hanebrekke, Tanja Lexau; Nilssen, Einar Magnus; Jorde, Per Erik; Albretsen, Jon; Johansen, Torild (Peer reviewed; Journal article, 2021)
    Many marine organisms have a permanent presence both inshore and offshore and spawn in multiple areas, yet their status as separate populations or stocks remain unclear. This is the situation for the northern shrimp (Pandalus ...
  • Summertime M2 Internal Tides in the Northern Yellow Sea 

    Lin, Fan; Asplin, Lars; Wei, Hao (Peer reviewed; Journal article, 2021)
    The summertime M2 internal tide in the northern Yellow Sea is investigated with moored current meter observations and numerical current model results. The hydrodynamic model, which is implemented from the Regional Ocean ...

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