Blar i forfatter "Kahui, Viktoria"

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    • Fishing on cold water coral reefs : A bioeconomic model of habitat-fishery connections 

      Kahui, Viktoria; Armstrong, Claire W. (Working paper; Arbeidsnotat, 2008-11)
      This paper applies a bioeconomic model in order to study different interactions between a harvested renewable resource and a non-renewable resource without commercial value that is negatively affected by the harvesting activity. This enables the analysis of for instance cold water coral habitats and their importance to commercial fish species. The fish is harvested either in a manner that does ...

    • A review of bioeconomic modelling of habitat-fisheries interactions. 

      Foley, Naomi; Armstrong, Claire W.; Kahui, Viktoria; Mikkelsen, Eirik Inge; Reithe, Siv (Journal article; Tidsskriftartikkel; Peer reviewed, 2012)
      This paper reviews the bioeconomic literature on habitat-fisheries connections. Many such connections have been explored in the bioeconomic literature; however, missing from the literature is an analysis merging the potential influences of habitat on both fish stocks and fisheries into one general, overarching theoretical model. We attempt to clarify the nature of linkages between the function of ...

    • Use and non-use values in an applied bioeconomic model of fisheries and habitat connections 

      Armstrong, Claire W.; Vondolia, Godwin Kofi; Aanesen, Margrethe; Kahui, Viktoria; Czajkowski, Mikolaj (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-07-25)
      In addition to indirect support to fisheries, marine habitats also provide non-use benefits often overlooked in most bioeconomic models. We expand a dynamic bioeconomic fisheries model where presence of natural habitats reduces fishing cost via aggregation effects and provides non-use benefits. The theoretical model is illustrated with an application to cold-water corals in Norway where two fishing ...

    • Økonomisk verdsetting av havmiljø : Anvendelse på havområdet utenfor Nordland 

      Armstrong, Claire W.; Kahui, Viktoria; Aanesen, Margrethe (Working paper; Arbeidsnotat, 2008-10)
      I sommer har konflikten om havområdene utenfor Lofoten-Vesterålen toppet seg, med sterke utspill fra fiskerhold om seismikkskyting på fiskefelt. Økende bruk av havet til ulike aktiviteter, det være seg fiske eller petroleumsvirksomhet, oppdrett, transport eller turisme, gjør at en bredere forståelse av hvilke verdier havet tilbyr er et viktig innspill i politiske avgjørelser. I dette arbeidet ...