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norskFakultet for biovitenskap, fiskeri og økonomi
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Handelshøgskolen ved UiT [839]
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Norges fiskerihøgskole [985]
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Risikorapport norsk fiskeoppdrett 2018
(Research report; Forskningsrapport, 2018)Risikorapporten omhandler både miljøpåvirkninger av havbruk og fiskevelferd, og legger vekt på overordnede problemstillinger som myndighetene vil ha råd om. Metodene som brukes for å risikovurdere er under stadig utvikling, og er oppdatert i årets rapport. På sikt er det ønskelig å kunne utføre regionale risikovurderinger hvor de ulike risikofaktorene sees i sammenheng. Rapporten er bestilt av ... -
Oppfølging av miljøundersøkelsen i vannforekomsten Finnfjord Indre
(Research report; Forskningsrapport, 2017)I 2014 påla Miljødirektorat Finnfjord AS først å utarbeide et program for vannovervåking, og deretter gjennomføre dette, i vannforekomsten Finnfjord Indre. Endelig rapport ble sendt inn 29 februar 2016, og i en foreløpig tilbakemelding fra Miljødirektoratet i brev datert 4 april 2016 konkluderer de med at det er behov for en ny undersøkelse som ... -
Spatial and temporal trends of mercury in freshwater fish in Fennoscandia (1965-2015)
(Research report; Forskningsrapport, 2017-09)Mercury (Hg) emissions to the atmosphere cause elevated Hg levels in fish, even in many remote regions of the world. Here we present an extensive database of more than 50 000 measurements of Hg in fish, including 2 775 individual water bodies in Fennoscandia (Norway, Sweden, Finland, Russian part of Kola Peninsula) sampled between 1965 and 2015. The data have been analysed for spatial patterns and ... -
Success or failure? Making sense of outcomes in a public sector change project
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-22)The most common method of assessing outcomes of change projects is to compare the final outcomes with predefined goals and conclude that the project has been a success, or more commonly, a failure. We question whether such simple conclusions pay due respect to complex processes. In this paper, we apply a sensemaking perspective to explore how and when outcomes of change projects are assessed. We ... -
Miljøundersøkelse i vannforekomsten Finnfjord Indre i Lenvik Kommune, Troms fylke.
(Research report; Forskningsrapport, 2016)Miljødirektoratet påla i mai 2015 Finnfjord AS og andre industribedrifter å gjennomføre vannovervåking i vannforekomsten bedriftene har utslipp til. Finnfjord AS engasjerte Akvaplan Niva AS til å utarbeide et program for miljøundersøkelse i vannforekomsten Finnfjorden Indre.(Akvaplan-niva AS Rapport: 7386-01). Programmet ble akseptert av Miljødirektoratet ... -
Comparing the size selectivity of a novel T90 mesh codend to two conventional codends in the northern shrimp (Pandalus borealis) trawl fishery
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-28)The size selectivity and usability of three codends were quantified and compared for the first time in the inshore Northern shrimp (<i>Pandalus borealis</i>) trawl fishery of Iceland using the covered codend method: a conventional diamond-mesh codend (T0), conventional square-mesh codend (T45), and a 90° turned mesh codend (T90) constructed of four panels and with shortened lastridge ropes. Fishers, ... -
The Atlantic Salmon Gill Transcriptome Response in a Natural Outbreak of Salmon Gill Pox Virus Infection Reveals New Biomarkers of Gill Pathology and Suppression of Mucosal Defense
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-04)The salmon gill poxvirus (SGPV) is a large DNA virus that infects gill epithelial cells in Atlantic salmon and is associated with acute high mortality disease outbreaks in aquaculture. The pathological effects of SGPV infection include gill epithelial apoptosis in the acute phase of the disease and hyperplasia of gill epithelial cells in surviving fish, causing damage to the gill respiratory surface. ... -
Weakening of Cold Halocline Layer Exposes Sea Ice to Oceanic Heat in the Eastern Arctic Ocean
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-20)A 15-yr duration record of mooring observations from the eastern (>70°E) Eurasian Basin (EB) of the Arctic Ocean is used to show and quantify the recently increased oceanic heat flux from intermediate-depth (~150–900 m) warm Atlantic Water (AW) to the surface mixed layer and sea ice. The upward release of AW heat is regulated by the stability of the overlying halocline, which we show has weakened ... -
Antimicrobial resistance due to the use of biocides and heavy metals: a literature review
(Research report; Forskningsrapport, 2016-12-09)In June 2016,the Norwegian EnvironmentAgencyrequestedthe Norwegian Scientific Committee for Food Safety (VKM) to conducta literature reviewregardingdevelopment of bacterial resistance to biocides and heavy metals and cross-resistance to antimicrobial agents(e.g.,antibiotics)in bacteria, with the following mandate: <br><br>1.List chemical substancesthat may contribute to increased antimicrobial ... -
CWD in Norway
(Research report; Forskningsrapport, 2016-06-30)The Norwegian Food Safety Authority (NFSA) and Norwegian Environmental Authority (NEA) asked the Norwegian Scientific Committee for Food Safety (Vitenskapskomiteen for mattrygghet, VKM) for an opinion on factors associated with the introduction of Chronic Wasting Disease (CWD) to Norway. VKM appointed a working group consisting of two members of the Panel on Biological Hazards, one member of Panel ... -
Marine biomonitoring with eDNA: Can metabarcoding of water samples cut it as a tool for surveying benthic communities?
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-09-24)In the marine realm, biomonitoring using environmental DNA (eDNA) of benthic communities requires destructive direct sampling or the setting‐up of settlement structures. Comparatively much less effort is required to sample the water column, which can be accessed remotely. In this study we assess the feasibility of obtaining information from the eukaryotic benthic communities by sampling the adjacent ... -
Ocular Histopathological Findings in Semi-Domesticated Eurasian Tundra Reindeer (Rangifer tarandus tarandus) with Infectious Keratoconjunctivitis after Experimental Inoculation with Cervid Herpesvirus 2
(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 ... -
Microbial eukaryotes and their functional importance in the Arctic. A Svalbardian perspective
(Doctoral thesis; Doktorgradsavhandling, 2020-11-06)<p>Microbial eukaryotes, including protists and fungi, play diverse functions in virtually all ecosystems. In the High Arctic, their high biomass and diversity reflects crucial ecological importance and the performance of key ecological processes. Protists are the main primary producers in arctic seas, whereas fungi are an important group of decomposers and symbiotic partners of plants in terrestrial ... -
Foraging behaviour of humpback whales (Megaptera novaeangliae): Automatic detection of feeding lunges from two-dimensional data
(Master thesis; Mastergradsoppgave, 2020-09-10)Rorqual whales (Family Balaenopteridae) forage almost exclusively by performing so-called feeding lunges. It is difficult to study rorqual foraging behaviour through direct observation because most of the lunges are carried out deep in the water column. The introduction of high-resolution digital tags recording three-dimensional (3D) acceleration has allowed for the collection of complex movement ... -
Individual differences in functional food consumption: The role of time perspective and the Big Five personality traits
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-24)Prior research suggests inconsistent relationships between individuals’ personality traits, time perspective, and specific behavior. In a large representative sample of Norwegian consumers (<i>N</i> = 810), we investigated the relationships between the Big Five personality traits, domain-specific consideration of future consequences (CFC), and consumption of functional foods. Structural equation ... -
Life history genomic regions explain differences in Atlantic salmon marine diet specialization
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-08-16)1. Animals employ various foraging strategies along their ontogeny to acquire energy, and with varying degree of efficiencies, to support growth, maturation and subsequent reproduction events. Individuals that can efficiently acquire energy early are more likely to mature at an earlier age, as a result of faster energy gain which can fuel maturation and reproduction.<p><p> 2. We aimed to test the ... -
Pan-Arctic analysis of cultural ecosystem services using social media and automated content analysis
(Journal article; Tidsskriftartikkel; Peer reviewed, 2020-07-02)In the Arctic, as in many parts of the world, interactions with the natural world are an important part of people's experience and are often recorded in photographs. Emerging methods for automated content analysis of social media data offers opportunities to discover information on cultural ecosystem services from photographs across large samples of people and countries. We analysed over 800 000 ... -
Space-time dynamics in monitoring neotropical fish communities using eDNA metabarcoding
(Journal article; Tidsskriftartikkel; Peer reviewed, 2021-09-01)The biodiverse Neotropical ecoregion remains insufficiently assessed, poorly managed, and threatened by unregulated human activities. Novel, rapid and cost-effective DNA-based approaches are valuable to improve understanding of the biological communities and for biomonitoring in remote areas. Here, we evaluate the potential of environmental DNA (eDNA) metabarcoding for assessing the structure and ... -
Application of economic tools for informing Atlantic salmon management in Norway. Opportunity cost of protection measures, valuation of ecosystem services and environmental cost-benefit analysis.
(Doctoral thesis; Doktorgradsavhandling, 2020-10-23)This thesis explores various aspects of the application of economic analysis to Atlantic salmon management in Norway. The purpose and contributions are twofold. On the one hand, the thesis seeks to improve economic toolbox used to analyse environmental-economic trade-offs. On the other hand, it yields specific conclusions and recommendations for the case of Atlantic salmon management in Norway and ... -
The Sunk Cost Fallacy and Risk-Taking Behaviour. Evidence from a computer game experiment
(Master thesis; Mastergradsoppgave, 2020-05-31)We examine whether behavioural sunk costs are related to an increased willingness to make risky decisions. Rational agents’ decisions should not be contingent on sunk costs; however, foregoing research suggests that individuals in fact do react to such costs. Few studies have examined behavioural sunk costs and risk-taking with “real stakes”, which is an important topic of research as many ...
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