• Changes in softbottom macrofauna communities along environmental gradients 

      Aschan, Michaela (Journal article; Tidsskriftartikkel; Peer reviewed, 1990-12-21)
    • Fiskeren fra veidemann til "advokat" 

      Johnsen, Jahn Petter (Chapter; Bokkapittel, 2002)
    • Effects of antioxidants on copper induced lipid oxidation during salting of cod (Gadus morhua L.) 

      Lauritzsen, Kristin; Olsen, Ragnar L. (Journal article; Tidsskriftartikkel; Peer reviewed, 2003-12-02)
      A model system for studying lipid oxidation of salted cod muscle was used for investigating the interaction effects of including antioxidants and copper in the brine. The results showed that ascorbate might have pro-oxidative or anti-oxidative effects depending on the ascorbate and metal concentrations. Without added copper in the brine, concentrations of ascorbate ≤500 ppm had a pro-oxidative effect. ...
    • Latour, natur,og havforskere : hvordan produsere natur? 

      Johnsen, Jahn Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2004)
    • Effects of calcium, magnesium and pH during salt curing of cod (Gadus morhua L.) 

      Olsen, Ragnar L.; Lauritzsen, Kristin; Akse, Leif; Gundersen, Bjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2004-01-08)
      The quality of heavily salted cod was investigated as influenced by adjusted levels of calcium, magnesium and pH in the salt. The investigation was carried out as a multivariate study consisting of two separate 23 full factorial designs. The chemical composition, waterholding capacity, weight and protein yields, colour and firmness were used as quality indicators or responses to the salt mixtures ...
    • Physical and Quality Attributes of Salted cod (Gadus morhua L.) as Affected by the State of Rigor and Freezing Prior to Salting 

      Olsen, Ragnar L.; Lauritzsen, Kristin; Akse, Leif; Johansen, Arvid; Joensen, Sjurður; Sørensen, Nils Kristian (Journal article; Tidsskriftartikkel; Peer reviewed, 2004-03-04)
      The effects of the rigor state and freezing of cod prior to salting on the mass transfer during production and the quality of heavily cured cod have been investigated. Pre-rigor salting lead to a larger reduction in weight, a higher water loss and a lower uptake of NaCl than in fish salted post-rigor and in fish salted after frozen storage. The cause of this is believed to be the simultaneous influx ...
    • The evolution of the “harvest machinery” : why capture capacity has continued to expand in Norwegian fisheries 

      Johnsen, Jahn Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2005)
      Controlling the expansion of capture capacity has been a major challenge for the fisheries management systems around the North Atlantic. Despite focused attempts to reduce this capacity in recent years in different jurisdictions, it has continued to expand. This chapter uses a case study of changes in Norwegian fisheries to help explain why this has happened. The article supports the replacement of ...
    • Economic Impacts of Global Warming : The Case of the Barents Sea Fisheries 

      Eide, Arne (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
      Regional analyses of possible physical and biological effects of global warming in the Barents Sea area have been carried out recently. Based on such studies possible economic impacts of global warming on the Barents Sea fisheries have been quantified, assuming different types of management regimes. The EconSimp2000 model, consisting of the ecosystem model AggMult and the fleet model EconMult have ...
    • Effects of dietary soybean meal, inulin and oxytetracycline on gastrointestinal histological characteristics, distal intestine cell proliferation and intestinal microbiota in Atlantic salmon (Salmo salar L.) 

      Sperstad, Sigmund; Bakke-Mckellep, AM; Penn, MH; Salas, PM; Refstie, Ståle; Landsverk, Tor; Ringø, Einar; Krogdahl, Åshild (Journal article; Tidsskriftartikkel; Peer reviewed, 2007)
      Soyabean meal (SBM)-induced enteritis in the distal intestine of the teleost Atlantic salmon (Salmo salar L.) and other salmonids may be considered a model for diet-related mucosal disorders in other animals and man. The role of the intestinal microbiota in its pathogenesis was explored. Compared to diets containing fishmeal (FM) as the sole protein source, responses to extracted SBM or the prebiotic ...
    • Petrodevelopment 2030: Socio-economic consequences of an extensive oil and gas development in the Barents Sea 

      Didyk, Vladimir; Arbo, Peter; Hersoug, Bjørn; Nilssen, Inge Berg; Nygaard, Vigdis; Sand, Jan Yngve; Østbye, Stein; Riabova, Larissa (Research report; Forskningsrapport, 2007-10)
      The theme of this report is the regional socio-economic consequences of an extensive oil and gas development in the Barents Sea. The regional focus area includes Finnmark County and Murmansk Oblast. The introductory chapter explains the purpose of the study and the way the work has been done. The next two chapters provide a detailed account of the region and its basic characteristics. The general ...
    • Lokalsamfunnet – infrastruktur eller kulisse for fisketurisme? 

      Johnsen, Jahn Petter; Nordstrand, Kristin Berg (Chapter; Bokkapittel, 2008)
      Fisketurismen – nye aktører i kystsamfunn? Hvert år deltar flere tusen fiskere i vårtorskefisket utenfor Lofoten og Vesterålen. Når skreien kommer inn til kysten i januar/februar for å gyte, starter det årlige eventyret som kalles Lofotfisket. Fiskerne tar i løpet av noen måneder opp rundt 40 000 tonn fisk. Men det er ikke bare yrkesfiskerne som strømmer til området under sesongen. Også turistene ...
    • Forvaltning, styring og kybernetisering i fiske – konsekvenser for raudåtenæringa? 

      Johnsen, Jahn Petter (Chapter; Bokkapittel, 2008)
      Norsk fiskerinæring har gjennomgått betydelige teknologiske og organisatoriske endringer. Blant annet har de tidligere frie fiskeriene blitt lukket, og en rekke styrings- og reguleringssystemer er innført. Fra å være basert på uformell organisering og implisitt styring, fikk vi gjennom 1980- og 90-åra ei fiskerinæring som var gjenstand for eksplisitt styring. Etter tusenårsskiftet ser vi konturene ...
    • Screening for antibacterial and antifungal activities in marine benthic invertebrates from northern Norway 

      Tadesse, Margey; Gulliksen, Bjørn; Strøm, Morten B.; Styrvold, Olaf B.; Haug, Tor (Journal article; Tidsskriftartikkel; Peer reviewed, 2008-06-18)
      Benthic marine invertebrates collected from sub-Arctic regions of northern Norway, were found to be a promising source of novel bioactive compounds against human and fish pathogenic bacteria and fungi. Lyophilized material from seven species of ascidians, six sponges and one soft alcyonid coral were extracted with 60% acidified acetonitrile (ACN). After separation into an ACN-rich phase (ACN extract) ...
    • Mellom marked og nettverk: Om fiskerirekruttering og sysselsettingsystemer i fiske 

      Johnsen, Jahn Petter; Vik, Jostein (Journal article; Tidsskriftartikkel; Peer reviewed, 2008-08-15)
      Denne rapporten er skrevet som en del av prosjektet "Networks or markets? The recruitment challenges in future fisheries and marine industries"; finansiert av Norges forskningsråd og Fiskeri og havbruksnæringens forskningsfond. Formålet med rapporten er å presentere kvantitativt datamateriale om sysselsettingssystemet i fiskeflåten. Rapporten bygger på et datamateriale fremskaffet gjennom telefonintervjuer ...
    • Criteria for Safe Use of Plant Ingredients in Diets for Aquacultured Fish 

      Ringø, Einar; Hemre, Gro-Ingun; Amlund, Heidi; Aursand, Marit; Bakke-McKellep, Anne Marie; Olsen, Rolf Erik; Svihus, Birger (Research report; Forskningsrapport, 2009)
      A thorough review of different aspects on the health implications of using vegetable feed ingredients, both protein and lipid alternatives to fishmeal and fish oil, plus possible additions of immunostimulants, also including a short chapter on undesirable components, the use of genetically modified plants, and how processing may affect feed quality and availability, are given in the different chapters ...
    • Nordic experience of fisheries management. Seen in relation to the reform of the EU Common Fisheries Policy. 

      Holm, Petter; Eliasen, Søren; Sverdrup-Jensen, Sten; Johnsen, Jahn Petter (Research report; Forskningsrapport, 2009)
      The waters surrounding the Nordic countries are rich in fish resources. Up to this date fisheries has been among the most important productive sectors in the Nordic economies, and in the Faroe Islands and Greenland it is by far the most important sector. Management of marine fisheries has over time had various objectives in the Nordic countries, ranging from fiscal and social purposes to stock ...
    • Power and the Production of Science. Assessing Cod Stocks as the Mechanistic Fishery Collapses 

      Johnsen, Jahn Petter; Sinclair, Peter R.; Ripley, Paul (Journal article; Tidsskriftartikkel; Peer reviewed, 2009)
      This paper discusses power relations in the production of knowledge claims and the validation of management strategies. The experience of doing stock assessment science and creating management plans for Canada’s east coast cod fishery illustrates this general process. We demonstrate that the cyborgization of fisheries-management is limited by its inability to produce power for stabilizing the ...
    • Rekrutteringsutfordringer for marin sektor i framtida 

      Vik, Jostein; Johnsen, Jahn Petter; Sønvisen, Signe Annie (Journal article; Tidsskriftartikkel, 2009)
    • North Atlantic Fisheries in Change. From Organic Associations to Cybernetic Organizations 

      Johnsen, Jahn Petter; Murray, Grant Daniel; Neis, Barbara (Journal article; Tidsskriftartikkel; Peer reviewed, 2009)
    • The Cyborgization of the Fisheries : on Attempts to Make Fisheries Management Possible 

      Johnsen, Jahn Petter; Sinclair, Peter; Bavington, Dean; Holm, Petter (Journal article; Tidsskriftartikkel; Peer reviewed, 2009)
      Although natural resource exploitation has a long tradition, modern resource management is a more recent phenomenon. The huge variety in natural resource exploitation has made it difficult to place the industrial harvesting of marine living resources under political and managerial control. For most of history fish and fishing people have for all practical purposes been unmanageable. From the late ...