Now showing items 21-40 of 372

    • Power and the Production of Science. Assessing Cod Stocks as the Mechanistic Fishery Collapses 

      Sinclair, Peter R.; Johnsen, Jahn Petter; 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)
    • 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 ...
    • 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 ...
    • Criteria for Safe Use of Plant Ingredients in Diets for Aquacultured Fish 

      Hemre, Gro-Ingun; Ringø, Einar; 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 ...
    • Torsk fra merd: Pre-rigor produksjon av loins med skinn 

      Kristoffersen, Silje; Kristiansen, Frank; Eilertsen, Guro; Olsen, Ragnar Ludvig (Research report; Forskningsrapport, 2009-03)
      I dette forsøket ble torsk fanget levende og lagret i merd hvor den ble fôret med hhv. lodde og kommersielt torskefôr i 3 måneder. Etter skånsom slakting og utblødning i 30 minutter, ble fisken sløyd og de biologiske data registrert før maskinell filetering enten pre-rigor (innen 2 timer etter død) og post-rigor (etter 4 dagers is-lagring av sløyd fisk). Det ble produsert ryggfileter (Loins) enten ...
    • Fisheries rent creation and distribution – the imaginary case of Codland 

      Flåten, Ola (Conference object; Konferansebidrag, 2009-08-27)
      This paper discusses actual and possible achievements and failures of Codland and examines it from the point of view of efficiency and in terms of distribution. It is argued in favour of the joint analysis of the two approaches when contemplating fisheries management reforms, since such reforms may create both winners and losers. The analysis demonstrates how rent drain from fishing communities and ...
    • Optimal Selection and Effort in a Fishery on a Stock with Cannibalistic Behaviour : The Case of the Northeast Arctic Cod Fisheries 

      Eide, Arne; Wikan, Arild (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
      We explore a fishery targeting the mature part of a stock, while bycatching the immature part. Both targeted catch and bycatch may have positive market values. Cost of effort is supposed to be a function of the selection properties of the fishing gears. Mature fish is assumed to cannibalise on the immature part of the stock. A bioeconomic model of the problem is set up and it is shown that the model ...
    • The ecological and economic value of cold-water coral ecosystems 

      Foley, Naomi; Armstrong, Claire W. (Journal article; Tidsskriftartikkel, 2010)
      Despite the growing scientific literature on cold-water corals (CWC) there appears to be no studies that address the economic values or economic management of the resource. This paper presents an overview of the goods and services of CWC and their associated biodiversity. Use and non-use values associated with CWC are presented, and the methods relevant for assessing their valuation are discussed. ...
    • Antimicrobial Peptides in Echinoderms 

      Li, Chun; Haug, Tor; Stensvåg, Klara (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
    • MPA in Labour: Securing the Pearl Cays of Nicaragua 

      Jentoft, Svein; Gonzalez, Clarence (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
    • Structural and functional studies of STAT1 from Atlantic salmon (Salmo salar). 

      Shi, Cheng-Yin; Skjesol, Astrid; Hansen, Tom Egil; Thim, Hanna Leena; Jørgensen, Jorunn B (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
    • Analysis of bacterial diversity in the intestine of grass carp (Ctenopharyngodon idellus) based on 16S rDNA gene sequences 

      Han, A; Ringø, Einar; Liu, Yuchan; Zhou, Zhigang; He, Suxu; Cao, Yanan; Bin, Yao (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
    • Protected areas for conflict resolution and management of recreational and commercial fisheries 

      Ngoc Khanh, Thi Quach; Flaaten, Ola (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
    • The Nornir run-time system for parallel programs using Kahn process networks on multi-core machines – A flexible alternative to MapReduce 

      Johansen, Dag; Vrba, Zeljko; Halvorsen, Pål; Griwodz, Carsten; Beskow, Paul; Espeland, Håvard (Journal article; Tidsskriftartikkel; Peer reviewed, 2010)
    • Field demonstration of a novel towed, area bubble-plume zooplankton (Calanus sp.) harvesting approach 

      Grimaldo, Eduardo; Leifer, Ira; Gjøsund, Svein Helge; Larsen, Roger B.; Jeuthe, Henrik (Research report; Forskningsrapport, 2010)
      This paper presents field experiment results of using a new technology to harvest copepods (Calanus sp.) in the ocean by bubble upwelling. Two largo-scale bubble rafts, a 21 m2 and a flexible 75 m2 bubble raft with tow parallel and perpendicular sparger elements, respectively, were field tested in areas with high, upper 25-m water column Calanus densities. Measured bubble-driven upwelling velocities ...
    • Do stocking densities affect the gut microbiota of gibel carp (Carassius auratus gibelio) cultured in ponds? 

      Ringø, Einar (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      The aim of the present study was to evaluate the intestinal microbial communities of gibel carp (Carassius auratus gibelio) cultivated in two beach ponds at different stocking densities. The two ponds were both ~3.33 hm2 in acreage and ~1.5 m in depth. The stocking densities included one intensive with 2 fish m–3 while the other treated as semi-intensive with 1 fish m–3. The gut microbiota (both ...
    • MPA in Labor: Securing the Pearl Cays of Nicaragua 

      Gonzalez, Clarence; Jentoft, Svein (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      Implementation of Marine Protected Areas (MPAs) has always a step-zero, i.e., an initial phase when the idea is incepted, communicated and negotiated among stakeholders. What happens during this phase is likely to have an impact later on. If not done right, the management of the MPA may encounter problems at later stage that will be difficult to correct. Inspired by this working theory, this article ...
    • Evaluation of probiotic strain Bacillus subtilis C-3102 as a feed supplement for koi carp (Cyprinus carpio) 

      Ringø, Einar (Journal article; Tidsskriftartikkel; Peer reviewed, 2011)
      In this study, the effects of dietary probiotic Bacillus subtilis C-3102 (Calsporin®) on the growth performance, predominant intestinal microbiota, expression of cytokines genes in three organs (liver, intestine and kidney) and protection against Aeromonas hydrophila infection of koi carp were investigated. Fish were fed two different diets, 1-control diet (non-supplemented) and 2-experimental diet ...