Fakultet for biovitenskap, fiskeri og økonomi: Recent submissions

Now showing items 1-20 of 5697

    • Advice on fishing opportunities for Northeast Arctic haddock in 2026 in ICES subareas 1 and 2 

      Howell, Daniel; Bogstad, Bjarte; Chetyrkin, Anatoly; Hallfredsson, Elvar Halldor; Fall, Johanna Jennifer Elisabeth; Filin, Anatoly; Höffle, Hannes; Johannesen, Edda; Kovalev, Yuri; Russkikh, Alexey; Vasilyev, Dmitri; Vihtakari, Mikko; Windsland, Kristin; Stesko, Aleksi (Research report; Forskningsrapport, 2025-07-01)

    • Joint Russian Norwegian Arctic Fisheries Working Group (JRN-AFWG) Report 2025 

      Howell, Daniel; Aune, Magnus; Bogstad, Bjarte; Breivik, Olav Nikolai; Bulatov, Oleg; Chetyrkin, Anatoly; Eidset, Elise; Eriksen, Elena; Filin, Anatolii; Hallfredsson, Elvar Halldor; Johannesen, Edda; kovalev, Yury; Nedreaas, Kjell Harald; Prozorkevich, Dmitry; Russkikh, Aleksey; Solberg, Charles Abraham; Stesko, Aleksei; Tranang, Caroline Aas; Trochta, John Tyler; Trofimov, Alexandr; Vasilyev, Dmitry A.; Vihtakari, Mikko; Vollen, Tone; Windsland, Kristin; Yaragina, Natalia A.; Prokopchuk, Irina (Research report; Forskningsrapport, 2025-07-01)
      On 30 March 2022 all Russian participation in ICES was temporally suspended. Althoughthe announcement of the suspension stressed the role of ICES as a “multilateral scienceorganization”, this suspension applied not only to research activities but also to the ICESwork providing fisheries advice for the sustainable management of fish stocks andecosystems. On 9 December 2024 Russia announced its intention ...

    • Advice on fishing opportunities for Northeast Arctic cod in 2026 in ICES subareas 1 and 2 

      Howell, Daniel; Bogstad, Bjarte; Chetyrkin, Anatoly; Hallfredsson, Elvar Halldor; Fall, Johanna Jennifer Elisabeth; Filin, Anatoly; Höffle, Hannes; Johannesen, Edda; Kovalev, Yuri; Russkikh, Alexey; Vasilyev, Dmitri; Vihtakari, Mikko; Windsland, Kristin; Stesko, Aleksi (Research report; Forskningsrapport, 2025-07-01)
      Advice on fishing opportunities<p> <p>The Joint Russian-Norwegian Arctic Fisheries Working Group (JRN-AFWG) advises that when the Joint Norwegian–Russian Fisheries Commission management plan is applied, catches in 2026 should be no more than 269 440 tonnes.

    • Fra lov til praksis: Hva er utfordringen med åpenhetsloven? En undersøkelse av bygg- og anleggsbransjen 

      Digranes, Kaja; Nicolaysen, Synne Fink (Master thesis, 2025)
      Stortinget vedtok åpenhetsloven som trådte i kraft 1. juli 2022. Dette som et svar på Norges arbeid for å møte FNs bærekraftsmål nr. 8 om anstendig arbeid og økonomisk vekst og nr. 12 om ansvarlig forbruk og produksjon (Prop. 150 L (2020-2021)). Loven skal fremme virksomheters respekt for anstendige arbeidsforhold og grunnleggende menneskerettigheter. Denne masteroppgaven har som formål å undersøke ...

    • Stitching the Gap: Feedback as a Mechanism for Reinforcing Sustainable Fashion Consumption 

      Arnesen, Sarah; Larsen, Nils Magne; Wien, Anders Hauge; Sigurdsson, Valdimar (Journal article; Tidsskriftartikkel; Peer reviewed, 2025-07-10)
      This paper examines how positive feedback can elicit pride in sustainable fashion consumption and influence two key behavioral outcomes: willingness to buy sustainable fashion products and word-of-mouth endorsement. Drawing on framing theory and existing research on pride as a motivational emotion, we conducted two experimental studies with U.S.-based participants recruited via Prolific. In the first ...

    • Ecosystem metabolism and nitrogen budget of a glacial Fjord in the Arctic 

      Duarte, Pedro; Castro de la Guardia, Laura; Assmy, Philipp Kurt Wolf; Wold, Anette; Fransson, Agneta; Chierici, Melissa; Bailey, Allison Michelle; Hodson, Andrew; Alexander, Andreas; Magalhaes, Catarina; Gabrielsen, Geir W.; Albretsen, Jon; Frank, Lukas; Tripathy, Sarat Chandra; Smerdou, Carlos; Gordillo, Francisco J.L.; Cobos, Pablo; Velázquez, David; Convey, Peter; De Rovere, Francesco; Hop, Haakon (Journal article; Tidsskriftartikkel; Peer reviewed, 2025-07-02)
      Fjords in the Arctic are changing rapidly due to multiple factors including increasing air temperatures, the influx of Atlantic Water (Atlantification), sea-ice loss, retreat of tidewater glaciers, increased freshwater discharges, pollution and tourism. Understanding how these changes affect ecosystem processes and functions and, thus, services to society is critical. Net Ecosystem Metabolism (NEM) ...

    • Contrasting seasonal patterns in particle aggregation and dissolved organic matter transformation in a sub-Arctic fjord 

      Digernes, Maria Guadalupe; Bodur, Yasemin Vicdan; Amargant-Arumí, Martí; Müller, Oliver; Hawkes, Jeffrey A.; Kohler, Stephen Gustav; Dietrich, Ulrike; Reigstad, Marit; Paulsen, Maria Lund (Journal article; Tidsskriftartikkel; Peer reviewed, 2025-01-31)
      Particulate (POM) and dissolved (DOM) organic matter in the ocean are important components of the Earth's biogeochemical cycle. The two are in a constant state of dynamic change as a result of physical and biochemical processes; however, they are mostly treated as two distinct entities, separated operationally by a filter. We studied the seasonal transition of DOM and POM pools and their drivers in ...

    • Metagenome-assembled-genomes recovered from the Arctic drift expedition MOSAiC 

      Boulton, William; Salamov, Asaf; Grigoriev, Igor V.; Calhoun, Sara; Labutti, Kurt; Riley, Robert; Barry, Kerrie; Fong, Allison; Hoppe, Clara J. M.; Metfies, Katja; Oetjen, Kersten; Eggers, Sarah Lena; Müller, Oliver; Gardner, Jessie; Granskog, Mats; Torstensson, Anders; Oggier, Marc; Larsen, Aud; Bratbak, Gunnar; Toseland, Andrew; Leggett, Richard M.; Moulton, Vincent; Mock, Thomas (Journal article; Tidsskriftartikkel; Peer reviewed, 2025-02-04)
      The Multidisciplinary Observatory for Study of the Arctic Climate (MOSAiC) expedition consisted of a year-long drifting survey of the Central Arctic Ocean. The ecosystems component of MOSAiC included the sampling of molecular data, with metagenomes collected from a diverse range of environments. The generation of metagenome-assembled-genomes (MAGs) from metagenomes are a starting point for genome-resolved ...

    • Hvilke faktorer fremmer og hemmer kvinner i å oppnå en lederstilling i mannsdominerte bransjer? - Et nærmere blikk på samferdselssektoren, eiendoms-, bygg - og anleggsbransjen 

      Hussain, Fatima; Mobakk, Mari (Master thesis, 2025)
      Sammendrag Målet med oppgaven er å bedre kjønnsbalansen for lederroller i mannsdominerte bransjer. På bakgrunn av dette har vi valgt problemstillingen: Hvilke faktorer fremmer og hemmer kvinner i å oppnå en lederstilling i samferdselssektoren, eiendoms-, bygg- og anleggsbransjen? For at vi skal kunne besvare problemstillingen har vi sett på både internasjonale og norske studier som belyser barrierer ...

    • Termisk droneovervåkning av fjellrype - En evaluering av dronebasert metode for å oppdage fjellryper med termisk kamera 

      Malones, Thomas Dale (Master thesis, 2025)
      Sammendrag Bærekraftig forvaltning av jaktbare arter krever pålitelige overvåkningsmetoder. Fjellrype (Lagopus muta) er en populær art blant jegere i Norge, men som vi mangler effektive overvåkningsmetoder for. I denne studien ble det brukt en DJI Matrice 30T drone med RBG- og TIR-kamera for å undersøke om sensorene kan brukes til overvåkning av fjellryper. Studien har også undersøkt hvilke ...

    • From rice bowl to sustainable future: Analysing policy constraints and agritourism opportunities in Vietnam's Mekong Delta 

      Phan, Van Rin (Master thesis, 2025)
      This thesis delves into the complex development paradox at the heart of Vietnam’s Mekong Delta, a region long hailed as the nation’s “rice bowl” and a cornerstone of its food security efforts. For decades, rice-focused policies have played a critical role in stabilising the national economy and ensuring food availability, particularly during global disruptions like the COVID-19 pandemic. Yet, this ...

    • Verdsettelse av Solstad Offshore ASA 

      Myklebust, Sverre; Jokstad, Lars Granli (Master thesis, 2025)
      Denne masteroppgavens hensikt er å fastsette verdien av egenkapitalen til Solstad Offshore ASA per 01.01.2024. Selskapets verdi er beregnet ved hjelp av adjusted present value (APV)-metoden, og multipler gjennom en komparativ metode. Solstad Offshore ASA er et offshore supply-selskap som har levert tjenester og skip til offshore-bransjen i flere tiår. Som resten av bransjen har selskapet hatt en ...

    • Verdsettelse av Consto AS 

      Olsen, Thomas (Master thesis, 2025)
      Oppgaven handler om fundamental verdsettelse av den privateide entreprenøren Consto AS pr. 31.12.2023. Valgt primærmetode for verdsettelsen er DCF-metoden; Discounted Cash Flow. Modellen benytter fremtidige diskonterte kontantstrømmer og diskontert terminalverdi ved periodens slutt til å estimere nåverdien av selskapet. Valgt periode er fra 2024 og 10 år fremover. Terminalverdien har en evig vekstrate ...

    • Catch and energy efficiency in trawls targeting mesopelagic fish, Calanus and northern krill 

      Kostak, Enis Noyan (Doctoral thesis; Doktorgradsavhandling, 2025-08-20)
      <p>The increasing demand for marine bioresources to support aquaculture and global food security has driven the interest in mesopelagic fish, <i>Calanus sp.</i>, and northern krill (<i>Meganyctiphanes norvegica</i>) as alternative marine feed resources. However, efficient harvesting of these species presents significant challenges due to their small size, which requires the use of small-meshed trawls ...

    • Size selectivity of Muller's pearlside (Maurolicus muelleri), glacier lanternfish (Benthosema glaciale) and krill in trawls targeting the mesopelagic fish 

      Kostak, Enis Noyan; Herrmann, Bent; Grimaldo, Eduardo; Brinkhof, Jesse (Journal article; Tidsskriftartikkel, 2025-01)
      The growing interest in harvesting mesopelagic fish increases the need for knowledge about trawl designs with high catch efficiency. Limited swimming ability of small mesopelagic species makes it important to consider potential net selectivity along the entire trawl body. Net makers designing trawls for harvesting mesopelagic species need to know which mesh sizes can be used in the low tapered belly ...

    • Estimating size selectivity of Calanus spp. in plankton trawls: effect of mesh size for commercial fishery 

      Kostak, Enis Noyan; Herrmann, Bent; Grimaldo, Eduardo; Brinkhof, Jesse (Journal article; Tidsskriftartikkel, 2025-04-24)
      <i>Calanus</i> spp. are marine zooplankton that are considered as a potential source for aquaculture feed, due to their high abundance in the North Atlantic. The diminutive size (< 5 mm) of these zooplankton necessitates the use of fine-meshed trawls to harvest them efficiently. However, the use of fine-meshed trawls leads to high drag and thus energy demand to tow the trawl. Therefore, it is of ...

    • Management of cumulative risk in the Pasvik river ecosystem Mitigating the impact of climate change and human activities on fish populations 

      Nieuwenhuis, Yara Hannah Theresa (Master thesis, 2025)
      The cumulative risk of climate change, pollution and other anthropogenic stressors challenges the sustainable management of freshwater ecosystems. Rapid warming at high latitudes is of concern due to the climate-driven amplification of risk mediated by interactions between the climate change and human activities. Here I address the cumulative risk in the subarctic Pasvik riverine system exposed to ...

    • Reiseliv i rurale regioner: Samarbeid og nettverksdynamikk i Nordreisa og Kvænangen 

      Samane, Josef (Master thesis, 2025)
      Denne oppgaven undersøker hvordan samarbeidsrelasjoner og nettverk fungerer mellom reiselivsaktører i rurale områder, med særlig vekt på små og mellomstore bedrifter i Nordreisa og Kvænangen. Formålet er å få innsikt i hvilke faktorer som fremmer eller hemmer utvikling av samarbeid, og hvordan slike relasjoner påvirker reiselivsnæringens utvikling i regionen. Oppgaven benytter et kvalitativt ...

    • Firedagers arbeidsuke i norske virksomheter 

      Mjelva, Odin; Holst, Alexander Fredrik (Master thesis, 2025)
      Masteroppgaven undersøker hvordan ansatte og ledere i små norske bedrifter opplever overgangen til firedagers arbeidsuke, og hvilke konsekvenser dette har for motivasjon, arbeidshverdag og balanse mellom jobb og fritid. Studien bygger på en kvalitativ tilnærming med en kombinasjon av dybdeintervjuer, skriftlig intervjuer og dokumentanalyse av sekundærdata. Utvalget i studien består av åtte informanter ...

    • Reindeer husbandry challenges in winter in a wind power plant area - a study from an island in Troms county 

      Ødmann, Andrea Viktoria (Master thesis, 2025)
      The establishment of the Kvitfjell/Raudfjell Wind power plant (WPP) in a reindeer herding district has raised concerns about potential impacts on herded reindeer habitat use and herding practices. The wind power plant was constructed between October 2017 and December 2020. Two years prior to construction, a herding family moved to the area with a new reindeer herd and engaged in intensive herding ...