Blar i tittel Norges fiskerihøgskole

Viser treff 1542-1561 av 1562

    • Walking the talk: implementing the international voluntary guidelines for securing sustainable small-scale fisheries 

      Jentoft, Svein (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • Water Flow Requirements of Post-smolt Atlantic Salmon (Salmo salar L.) Reared in Intensive Seawater Flow-through Systems: A Physiological Perspective 

      Calabrese, Sara; Imsland, Albert K. D.; Nilsen, Tom Ole; Kolarevic, Jelena; Ebbesson, Lars O.E.; Hosfeld, Camilla Diesen; Fivelstad, Sveinung; Pedrosa, Cindy; Terjesen, Bendik Fyhn; Stefansson, Sigurd O.; Takle, Harald Rune; Sveier, Harald; Mathisen, Frode; Handeland, Sigurd Olav (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-26)
      Environmental challenges related to open sea cage production of Atlantic salmon have sparked interest in developing commercial-scale semi-closed sea systems for post-smolt Atlantic salmon (100–1000 g). Determining the mass-specific water flow required by post-smolts will largely influence the design and dimensioning of such systems. In this experiment, post-smolts were exposed to four levels of ...

    • A welfare analysis of Norway’s export promotion programme for whitefish 

      Kinnucan, Henry william; Das, Abhipsita; Pettersen, Ingrid Kristine (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-10-19)
      Norway recently increased the effective levy used to fund its export promotion programme for whitefish by 21 per cent. Study results suggest the intensified programme is welfare increasing. The net social gain, defined as the difference between the increase in economic surplus associated with the increased advertising and the decrease in economic surplus associated with the increased effective levy, ...

    • The Well – Mixing skirt and freshwater lens concepts with smart-lighting and -feeding to enhance lice prevention and safeguard fish welfare 

      Wright, Daniel William; Stien, Lars Helge; Oppedal, Frode; Sievers, Michael; Ditria, Ellen; Trengereid, Henrik (Research report; Forskningsrapport, 2019)
      A commercial scale sea-cage design, combining skirt and freshwater lens concepts with smart lighting and feeding for improved lice prevention and fish welfare, was trialed. Environment, lice levels and fish welfare were assessed. In addition, acoustic tags and echo sounders were used to track fish behaviour. An associated laboratory trial on brackish water salinity effects on host-attached salmon ...

    • What do the Great Barrier Reef management and Norwegian spatial fisheries management have in common? 

      Johnsen, Jahn Petter (Conference object; Konferansebidrag, 2018)
      What do the Great Barrier Reef management and Norwegian spatial fisheries management have in common? The presentation addresses the importance of governmentality (Foucault 1978), understood as the art of governing for successful marine governance (MG). Management of the Great Barrier Reef and the Norwegian spatial management of fisheries are used as examples of systems that depends on and foster ...

    • What does stakeholder involvement mean for fisheries management? 

      Aanesen, Margrethe; Armstrong, Claire W.; Bloomfield, Helen J.; Röckmann, Christine (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)

    • What hat are you wearing? On the multiple roles of fishery scientists in the ICES community 

      Dankel, Dorothy Jane; Stange, Kari; Nielsen, Kåre Nolde (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-10-29)
      Trends towards a more participatory agenda in policy-relevant science imply that the roles and work tasks of scientists become more multifaceted. In Europe, the increased use of multiannual plans creates a need for fishery scientists to contribute with their expertise in a wide variety of situations. We identify and characterize four roles for scientists as <i>developers</i>, <i>reviewers</i>, ...

    • What is the true influence of the red tide on the production, price and marketing of the Galician mussel? 

      Martínez, Pablo Louzao (Master thesis; Mastergradsoppgave, 2017-08-14)
      In recent years, the Galician mussel industry has encountered an environmental factor capable of influencing its sea farming; the red tide. Its environmental and economic impact on mussel aquaculture is directly related to the duration of toxic processes. Therefore, in this work will be used the number of days of closure of production areas in order to analyze what is the true influence that red ...

    • When is enough, enough? Quantifying trade-offs between information quality and sampling effort for fishing gear selectivity data 

      Veiga-Malta, Tiago; Feekings, Jordan; Herrmann, Bent; Krag, Ludvig Ahm (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-06-21)
      There is general pressure throughout the world’s fisheries for the industry to have greater involvement not only in the development of fishing gears but also in the testing and documentation of their effect. In the European Union, the Common Fisheries Policy of 2013, together with the proposed reform of the technical measures regulation, highlights the need for greater flexibility in fisheries through ...

    • Whole genome sequencing reveals development of structured salmon lice (Lepeophtheirus salmonis, Krøyer, 1838) populations among aquaculture net pens through production 

      Brække, Nora (Master thesis; Mastergradsoppgave, 2023-05-15)
      Salmon louse, (Lepeophtheirus salmonis, Krøyer, 1838), is an ectoparasite that causes multiple health and economic problems in the farming of Atlantic salmon (Salmo salar L.), but also threatens wild salmonid species. The industry is struggling to identify proper measures for limiting lice infections, and to identify effective delousing treatments. One of the major production and management challenges, ...

    • Why and how to regulate Norwegian salmon production? – The history of Maximum Allowable Biomass (MAB) 

      Hersoug, Bjørn (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-05)
      Salmon farming has been a great success story in Norway over the last 50 years, but the industry is still much disputed. Right from the start, farmers were licensed, with a limit on total production. In addition, each site was regulated according to carrying capacity. Over the years, various management measures have been used to regulate both the total production and environmental conditions, before ...

    • Wicked problems: management complexities in the Atlantic bluefin tuna fisheries 

      Lunndal, Ingvild (Master thesis; Mastergradsoppgave, 2012-05-15)
      This study examines the complexities of achieving sufficient management measures for the Atlantic Bluefin Tuna, with an attempt to specify failure and shortcomings within the management system. The key to the solution is embedded in man-made governance systems and legal frameworks. With this thesis I will try to unfold the complexities of governance systems, the legal framework of fisheries ...

    • Wild and Farmed Arctic Charr as a Tourism Product in an Era of Climate Change 

      Helgadóttir, Guðrún; Renssen, Hans; Olk, Tom Robin; Oredalen, Tone Jøran; Haraldsdóttir, Laufey; Skúlason, Skúli; Thorarensen, Helgi (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-08-12)
      The topic investigated is the social-ecological system of Arctic charr (Salvelinus alpinus) fishing and aquaculture as a tourism product in an era of climate change. Arctic charr is a resilient salmonid species that was traditionally an important part of the sustenance economy in Arctic and Subarctic communities as a source of fresh food throughout the year. Arctic charr populations have declined ...

    • Willingness to pay for mangrove restoration to reduce the climate change impacts on ecotourism in Rekawa coastal wetland, Sri Lanka 

      Salpage, Nesha Dushani; Aanesen, Margrethe; Armstrong, Claire W. (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-03)
      This study investigates tourist preferences and willingness to pay (WTP) for restoration of mangroves to reduce the effects of climate change (CC) on ecotourism at Rekawa coastal wetland, Sri Lanka, using a double bounded discrete choice elicitation format in a contingent valuation method. The survey also included socio-economic, demographic, and attitudinal characteristics of respondents. The ...

    • Willingness to pay for unfamiliar public goods: Preserving cold-water coral in Norway 

      Aanesen, Margrethe; Armstrong, Claire W.; Czajkowski, Mikolaj; Falk-Andersson, Jannike; Hanley, Nick; Navrud, Ståle (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-02-17)
      The world's largest concentration of cold-water coral (CWC) is found off the Norwegian coast. Most CWC discoveries are recent, posing new challenges for Norwegian coastal and fishery authorities regarding the management of deep-sea resources. Scientific knowledge of CWC is limited, and many citizens have not even heard about them. This creates problems for the application of the stated preference ...

    • Willingness to pay to protect cold water corals 

      Armstrong, Claire W.; Aanesen, Margrethe; van Rensburg, Thomas; Sandorf, Erlend Dancke (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-08-16)
      There is increasing pressure to use currently untapped resources in the deep sea, raising questions regarding ecosystem service trade‐offs in these often unknown areas. We assessed the trade‐offs between protection of cold‐water coral reefs and economic activities, such as fisheries and petroleum extraction, through a survey of a representative sample of the populations of Norway and Ireland. ...

    • Women’s activities in the Ghanaian fishery; The role of social capital 

      Tetteh, Anthony Sackey (Master thesis; Mastergradsoppgave, 2007-05)
      Women play important roles in the Ghanaian fishery. This thesis focuses on the roles of women in the Ghanaian fisheries and their means of raising capital to finance their activities. The roles played are broadly categorized as an intermediary one linking fishermen and fish consumers. The women offer financial assistance to the fishermen in times of need and this has led to a strong relationship ...

    • Økologisk torskeoppdrett : en økonomisk analyse 

      Olsen, Truls (Master thesis; Mastergradsoppgave, 2008)
      Denne undersøkelsen tar for seg forskjellene mellom økologisk og konvensjonell oppdrett av torsk, med fokus på produksjonskostnader. Grunnlaget for at en ønsker å undersøke dette er at produksjonskostnadene for oppdrett av torsk er mye høyere enn hva det koster å villfange torsk. Det må derfor betales høyere pris for oppdrettet torsk og analysen vil gjøres for å se på økologisk oppdrett av torsk som ...

    • Økt lønnsomhet i torskesektoren - Sluttrapport Arbeidspakke 1 - Politiske og institusjonelle samfunnsbindinger 

      Dreyer, Bent; Holm, Petter; Henriksen, Edgar (Research report; Forskningsrapport, 2015)
      Rapporten gir en oversikt over aktivitet og funn i programmet «Økt lønnsomhet i torskesektoren» - Arbeidspakke 1. Programmet ble startet opp i 2011, og Arbeidspakke 1 - Politiske og institusjonelle samfunnsbindinger - var den aktiviteten i programmet som fikk størst oppmerksomhet i oppstartsfasen. Hensikten med denne aktiviteten i programmet var å redegjøre for de eksisterende rammevilkårene – ...

    • Økt lønnsomhet i torskesektoren. Sluttrapport 

      Dreyer, Bent; Bendiksen, Bjørn Inge; Henriksen, Edgar; Hermansen, Øystein; Holm, Petter; Iversen, Audun; Karlsen, Kine Mari; Svorken, Marianne; Isaksen, John Roald; Olsen, Petter; Sørdahl, Patrick Berg (Research report; Forskningsrapport, 2016-10-19)
      Rapporten gir en oversikt over aktivitet og funn i programmet «Økt lønnsomhet i torskesektoren». Programmet ble startet opp i 2011 og avsluttet sommeren 2016. Rapporten er organisert på følgende måte. Først redegjøres det for intensjonene med programmet. Deretter redegjøres det for hvordan programmet har vært organisert. Så gis det en oversikt over de ulike leveransene i programmet og ...