Blar i tittel Fakultet for biovitenskap, fiskeri og økonomi

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    • O Papel da Administração Pesqueira na Gestão do Subsector Artesanal em Moçambique: O presente e modelos para o futuro 

      Santos, Jorge (Research report; Forskningsrapport, 2008-05)
      Gerir pescarias artesanais é tarefa muito complexa em qualquer parte do mundo, e não existem receitas prontas de como o fazer. Os objectivos do presente trabalho são fazer uma ordenação sistemática dos principais conflitos endógenos e exógenos da pesca artesanal, incluindo uma análise do estado das pescarias, da interacção entre frotas, e da relação das pescas com assuntos de conservação e outras ...

    • Obesity-induced alterations in the gut microbiome in female mice fed a high-fat diet are antagonized by dietary supplementation with a novel, wax ester–rich, marine oil 

      Schots, Pauke C.; Jansen, Kirsten Maria; Mrazek, Jakub; Pedersen, Alice Marie; Olsen, Ragnar Ludvig; Larsen, Terje Steinar (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-09)
      Dietary supplementation with calanus oil, a novel wax ester–rich marine oil, has been shown to reduce adiposity in high-fat diet (HFD)–induced obese mice. Current evidence suggests that obesity and its comorbidities are intrinsically linked with unfavorable changes in the intestinal microbiome. Thus, in line with its antiobesity effect, we hypothesized that dietary supplementation with calanus oil ...

    • Occurrence of emerging brominated flame retardants and organophosphate esters in marine wildlife from the Norwegian Arctic 

      Lippold, Anna; Harju, Mikael; Aars, Jon; Blévin, Pierre; Bytingsvik, Jenny; Gabrielsen, Geir W.; Kovacs, Kit M.; Lyche, Jan Ludwig; Lydersen, Christian; Rikardsen, Audun H.; Routti, Heli Anna Irmeli (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-10)
      To understand the exposure and potential sources of emerging brominated flame retardants (EBFR) and organophosphate esters (OPEs) in marine wildlife from the Norwegian Arctic, we investigated concentrations of EBFRs in 157 tissue samples from nine species of marine vertebrates and OPEs in 34 samples from three whale species. The samples, collected from a wide range of species with contrasting ...

    • The occurrence of Nematoda in coastal sea ice on Svalbard (European Arctic) determined with the 18S small subunit rRNA gene 

      Pitusi, Vanessa; Søreide, Janne; Hassett, Brandon; Marquardt, Miriam; Andreasen, Magnus Heide (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-05-06)
      Understanding the diversity and functioning of Arctic sea ice ecosystems is vital to evaluate and predict the impact of current and future climate change. In the microscopic communities inhabiting the brine channels inside sea ice, nematodes often dominate numerically and act as bacterivores and herbivores. Despite nematodes great abundances and known ecological roles, molecular tools have not been ...

    • The Ocean 

      Hoegh-Guldberg, Ove; Cai, Rongshuo; Poloczanska, Elvira S.; Brewer, Peter G.; Sundby, Svein; Hilmi, Karim; Fabry, Victoria J.; Jung, Sukgeun; Skirving, William; Stone, Dáithí A.; Burrows, Michael T.; Bell, Johann; Cao, Long; Donner, Simon; Eakin, C. Mark; Eide, Arne; Halpern, Benjamin S.; McClain, Charles R.; O’Connor, Mary I.; Parmesan, Camille; Perry, R. Ian; Richardson, Anthony J.; Brown, Christopher J.; Schoeman, David; Signorini, Sergio R.; Sydeman, William J.; Zhang, Rui; van Hooidonk, Ruben; McKinnell, Stewart M. (Research report; Forskningsrapport, 2014)

    • Ocean migration of Atlantic salmon 

      Strøm, John Fredrik (Doctoral thesis; Doktorgradsavhandling, 2018-09-14)
      Atlantic salmon is experiencing population declines throughout most parts of its distribution range, with changes in the marine environment considered important contributors to the overall decline. Most of the current knowledge about Atlantic salmon’s ocean distribution originates from mark-recapture and genetic studies associated with high-sea fisheries and sampling surveys, and therefore, little ...

    • Ocean migration of pop-up satellite archival tagged Atlantic salmon from the Miramichi River in Canada 

      Strøm, John Fredrik; Thorstad, Eva Bonsak; Chafe, Graham; Sørbye, Sigrunn Holbek; Righton, David; Rikardsen, Audun H.; Carr, Jonathan (Journal article; Tidsskriftartikkel; Peer reviewed, 2017-01-13)
      The ocean migration of 16 post-spawned adult Atlantic salmon [Salmo salar L.] from the Miramichi River, Canada, tagged concurrently with pop-up satellite archival tags and acoustic transmitters was reconstructed using a Hidden Markov Model. Individuals exclusively utilized areas within the Gulf of St Lawrence and the Labrador Sea, and showed little overlap with known distributions of European stocks. ...

    • Ocean predation and mortality of adult Atlantic salmon 

      Strøm, John Fredrik; Rikardsen, Audun H.; Campana, Steven E.; Righton, David; Carr, Jonathan; Aarestrup, Kim; Stokesbury, Michael J.W.; Gargan, Patrick G.; Caballero Javierre, Pablo; Thorstad, Eva Bonsak (Journal article; Peer reviewed, 2019-05-27)
      Predation and mortality are often difficult to estimate in the ocean, which hampers the management and conservation of marine fishes. <br>We used data from pop-up satellite archival tags to investigate the ocean predation and mortality of adult Atlantic salmon (Salmo salar) released from 12 rivers flowing into the North Atlantic Ocean. Data from 156 tagged fish revealed 22 definite predation ...

    • Ocean predation and mortality of adult Atlantic salmon 

      Strøm, John Fredrik; Rikardsen, Audun Håvard; Campana, Steven E.; Righton, David; Carr, Jonathan; Aarestrup, Kim; Stokesbury, Michael J.W.; Gargan, Patrick; Javierre, Pablo Caballero; Thorstad, Eva Bonsak (Journal article; Peer reviewed, 2019-05-27)
      Predation and mortality are often difficult to estimate in the ocean, which hampers the management and conservation of marine fishes. We used data from pop-up satellite archival tags to investigate the ocean predation and mortality of adult Atlantic salmon (Salmo salar) released from 12 rivers flowing into the North Atlantic Ocean. Data from 156 tagged fish revealed 22 definite predation events (14%) ...

    • Oceanic drivers of juvenile sea turtle strandings in the UK. 

      Kettemer, Lisa Elena; Biastoch, Arne; Scott, Rebecca; Coombs, Ellen J.; Wagner, Patrick; Penrose, Rod (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-05)
      Juvenile sea turtles can disperse thousands of kilometers from nesting beaches to oceanic development habitats, aided by ocean currents. In the North Atlantic, turtles dispersing from American beaches risk being advected out of warm nursery grounds in the North Atlantic Gyre into lethally cold northern European waters (e.g. around the UK). We used an ocean model simulation to compare simulated ...

    • Oceanic plastic pollution caused by Danish seine fishing in Norway 

      Syversen, Tore; Lilleng, Grethe; Vollstad, Jørgen; Bård, Hanssen; Sønvisen, Signe Annie (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-06)
      Wear and tear on fishing gear is a sparsely investigated source of microplastic pollution in the sea. In Norway, Danish seine ropes and trawls are the fishing gears that contribute most to this pollution. The main reason for this pollution is that the seine ropes are dragged along the seabed over a considerable distance, creating a friction force that results in high ropes wear. This note reports ...

    • Ocular Histopathological Findings in Semi-Domesticated Eurasian Tundra Reindeer (Rangifer tarandus tarandus) with Infectious Keratoconjunctivitis after Experimental Inoculation with Cervid Herpesvirus 2 

      Sanchez Romano, Javier; Sørensen, Karen Kristine; Larsen, Anett Kristin; Mørk, Torill; Tryland, Morten (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-09)
      Infectious keratoconjunctivitis (IKC) is a common transmissible ocular disease in semi-domesticated Eurasian tundra reindeer (<i>Rangifer tarandus tarandus</i>). In large outbreaks, IKC may affect tens of animals in a herd, with the most severe cases often requiring euthanasia due to the destruction of the affected eyes and permanent blindness. An experimental inoculation with cervid herpesvirus 2 ...

    • Offiserers motivasjon for krig. Hva motiverer norske offiserer til deltakelse i høyrisiko-operasjoner? 

      Hass, Ole Einar; Henriksen, Frode (Master thesis; Mastergradsoppgave, 2016-05-18)
      Denne masteroppgaven setter søkelys på norske offiserers motivasjon for deltakelse i høyrisiko-operasjoner. Hensikten med studien er å undersøke hvilke motivasjonsfaktorer som er fremtredende når det gjelder deltakelse i operasjoner der man som offiser med stor sannsynlighet vil bli utsatt for hendelser som potensielt kan sette liv og helse i fare. Vi har vært særlig opptatt av å finne ut om det er ...

    • Oil and gas activity in the high north: Economic opportunities and political dependencies 

      Harsem, Øistein Breiland (Doctoral thesis; Doktorgradsavhandling, 2013-06-07)
      The aim of this thesis is to analyze what drives Arctic oil and gas activity, and the political effects of the oil and gas industry in the high north. Based on existing political economy theories, four different articles explore these questions by using different methodological approaches. The main findings are that while the potential for a large increase in Arctic oil and gas output is significant, ...

    • The oil game : the struggle between stakeholders in the case of oil and gas development on the Norwegian continental shelf outside Lofoten and Vesterålen 

      Johansen, Kristine Vollnes (Master thesis; Mastergradsoppgave, 2008-06-05)
      Lofoten and Vesterålen is an important fisheries area with traditions for this dating back hundreds of years. At the same time, it has been pointed out as a prospective oil and gas area. The oil industry is currently extending its activities and moving northwards from the North Sea into the Norwegian Sea and the Barents Sea. This has made the seas off Lofoten and Vesterålen a conflict zone. The ...

    • Oil price volatility and new evidence from news and Twitter 

      Abdollahi, Hooman (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-05-05)
      In this paper, we develop semantic-based sentiment indices through relevant news and Twitter feeds for oil market using a state-of-the-art natural language processing technique. We investigate the predictability of crude oil price volatility using the novel sentiment indices through a hybrid structure consisting of generalized autoregressive conditional heteroskedasticity and bidirectional long ...

    • Oksidativ stabilitet til kommersielle fiskeoljeprodukter 

      Brun, Alf Thorstein (Master thesis; Mastergradsoppgave, 2012-11-15)
      Markedet for produkter med langkjedede omega-3 fettsyrer har de siste årene vært i stadig vekst. Dette kommer av godt dokumenterte positive helseeffekter spesielt ved forebygging av hjerte- og karsykdommer. Hoveddelen av disse omega-3 oljene produseres i dag av fete fiskesorter fra farvannene rundt Sør-Amerika og mesteparten (40 %) raffineres i Norge. Omega-3 produkter har gjerne et konsentrert ...

    • Olje fra raudåte (Calanus finmarchicus). Oksidativ stabilitet, fettklasser og karotenoidinnhold. 

      Pedersen, Alice Marie (Master thesis; Mastergradsoppgave, 2007-11-28)
      I senere tid har oppmerksomhet blitt rettet mot fangst av raudåte i de norske havområdene. Det er utviklet egne fangst og prosesseringsteknikker, og bruksområdene for raudåteproduktene kan være mange. Olje utvunnet fra raudåte har et høyt innhold langskjedede n-3 fettsyrer, voksestere og naturlige antioksidanter. Hensikten med oppgaven var å undersøke oljens oksidative stabilitet ved langtidslagring, ...

    • Oljevernberedskap som inngangsbillett til nye leteområder i Arktis 

      Knol, Maaike (Lecture; Forelesning, 2016-02-13)

    • Om å segmentere bibliotekets gjester. Eller et øyeblikksbilde av Trondheim folkebibliotek 

      Lind, Sølvi Elisabeth Eriksen (Master thesis; Mastergradsoppgave, 2017-10-04)
      Med store endringer i samfunnet må bibliotekene bli kjent med kundene sine. Hvem er det som bruker bibliotekene og hvorfor bruker de bibliotekene. Tendensen over flere år har vært at besøkstallene ved Trondheim folkebibliotek har gått ned. Klarer biblioteket å markedsføre tilbudene sine godt nok? Denne oppgaven er en spørreundersøkelse foretatt ved Trondheim folkebibliotek. Mer enn 200 respondenter ...