Sub-communities within this community

Collections in this community

Recent additions

  • Is Glacial Meltwater a Secondary Source of Legacy Contaminants to Arctic Coastal Food Webs? 

    Mcgovern, Maeve; Warner, Nicholas Alexander; Borgå, Katrine; Evenset, Anita; Carlsson, Pernilla Marianne; Skogsberg, Stina Linnea Emelie; Søreide, Janne; Ruus, Anders; Christensen, Guttorm; Poste, Amanda (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-04-26)
    Climate change-driven increases in air and sea temperatures are rapidly thawing the Arctic cryosphere with potential for remobilization and accumulation of legacy persistent organic pollutants (POPs) in adjacent coastal food webs. Here, we present concentrations of selected POPs in zooplankton (spatially and seasonally), as well as zoobenthos and sculpin (spatially) from Isfjorden, Svalbard. ...
  • Land-cover, climate and fjord morphology drive differences in organic matter and nutrient dynamics in two contrasting northern river-fjord systems 

    Schultze, Sabrina; Andersen, Tom; Hessen, Dag Olav; Ruus, Anders; Borgå, Katrine; Poste, Amanda (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-31)
    Climate and land-use changes are leading to impacts on individual ecosystems as well as shifts in transfer dynamics between interconnected systems. At the land-ocean interface, changes in riverine inputs of organic matter (OM) and nutrients have the potential to lead to shifts in coastal carbon and nutrient cycling with consequences for ecosystem structure and function. In this study, we assess OM ...
  • The relative impact of health communication conveyed via quick response codes: A conjoint experiment among young thai consumers doing grocery shopping 

    Fagerstrøm, Asle; Eriksson, Niklas; Khamtanet, Sirinna; Jitkuekul, Premruedee; Sigurdsson, Valdimar; Larsen, Nils Magne (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-25)
    This paper explores the impact of health communication using smartphones and the outcome of healthier purchases when young Thai consumers shop for groceries. A conjoint experiment was arranged whereby participants (n ¼ 214) purchased grocery using information conveyed via quick response (QR) codes. Results show that a healthy food label, and a good consumer rating on the food’s health, evoked ...
  • Automatisk formativ feedback kan gi god motivasjon og læring : implementering av god tilbakemeldingspraksis i interaktive regnearkoppgaver 

    Unknown author (Journal article; Tidsskriftartikkel; Peer reviewed, 2015-02-05)
    I artikkelen presenterer vi et konsept der en student løser tradisjonelle finansoppgaver i regneark i stedet for på papir. Oppgavene er interaktive. Dette betyr at studentene kan få formative tilbakemeldinger automatisk når de selv ønsker det. Målet med tilbakemeldingene er å hjelpe studentene til å komme et skritt videre med problemløsingen sin. Den innovative algoritmen som evaluerer studentenes ...
  • Towards some general ecological principles 

    Wikan, Arild (Journal article; Tidsskriftartikkel; Peer reviewed, 2013-01-03)
    Discrete deterministic age-structured, stage-structured and difference delay equation population models are analysed and compared with respect to stability and nonstationary behaviour. All three models show that species with iteroparous life histories tend to be more stable than species with semelparous life histories which allow us to conclude that this must be a fairly general ecological ...
  • Merging indigenous and scientific knowledge links climate with the growth of a large migratory caribou population 

    Gagnon, Catherine A.; Hamel, Sandra; Russell, Don E.; Powell, Todd; Andre, James; Svoboda, Michael Y.; Berteaux, Dominique (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-01-08)
    1. Climate change in the Arctic is two to three times faster than anywhere else in the world. It is therefore crucial to understand the effects of weather on keystone arctic species, particularly those such as caribou (Rangifer tarandus) that sustain northern communities. Bridging long-term scientific and indigenous knowledge offers a promising path to achieve this goal, as both types of knowledge ...
  • Uncovering the secrets they keep – the role of parasites in food web ecology 

    Moore, Shannon Elizabeth (Master thesis; Mastergradsoppgave, 2022-06-01)
    Interactions involving parasites often account for large proportions of links within aquatic food webs, yet few studies integrate parasites into their food web analyses. This analysis compares three sets of highly resolved food webs that differ in taxa composition, space, and time for a subarctic lake system. Key topological food web metrics, including connectance, linkage density, and mean generality ...
  • Molecular study of digenean diversity in aquatic organisms in northern Norway, with a focus on the seasonality of Crepidostomum [Braun, 1900] 

    Slåteng, Sigurd (Master thesis; Mastergradsoppgave, 2022-06-07)
    This study aimed to elucidate cryptic trematode diversity across multiple life stages in aquatic organisms. I collected samples from first intermediate hosts (bivalves), second intermediate hosts (amphipods and insect nymphs), and definitive hosts (fish), and identified them by use of molecular methods. Phylograms based on molecular markers from 28S and COI genes were used to identify nine species ...
  • The structure of nasal conchae in Svalbard rock ptarmigan (Lagopus muta hyperborea) with comparisons to three other Galliform birds 

    Westvik, Marie Aas (Master thesis; Mastergradsoppgave, 2022-05-27)
    Birds are endothermic homeotherms that regulate internal metabolic heat production to keep a stable body core temperature. Lung ventilation, which is required to obtain oxygen for metabolism, is potentially a large source for heat and water loss. In a polar habitat with low year-round temperatures and scarcity of food in the winter, conservation of heat and water is crucial for survival of the ...
  • Validating the Tritiated Water Method in Adult Harp Seal 

    Sørli, Bernhard Jakob Salen (Master thesis; Mastergradsoppgave, 2022-05-16)
    As one of the top predators in the northeast Atlantic, and most numerous, the harp seal (Pagophilus groenlandicus), has a significant role in the higher trophic levels in the ecosystem. Their condition can be an indicator of changes in prey availability, competition with other species or even climate. It can also be a useful tool in predicting the pup production and breeding success. The ...
  • Dive behaviour and respiration rates of humpback whales (Megaptera Novaeangliae) during foraging off Northern Norway, with implications for metabolic rate estimates 

    Gunnufsen, Rikke (Master thesis; Mastergradsoppgave, 2022-05-16)
    Knowing the metabolic rate of marine mammals is often important as baseline knowledge of their biology and physiology, e.g., to allow ecosystem assessments and estimation of their resource needs and use, and prey requirements. However, our current knowledge of energetics of large cetaceans is limited compared to many smaller cetaceans. Determining the energy expenditure of large free-ranging whales ...
  • Marine growth of introduced pink salmon (Oncorhynchus gorbuscha) caught in northern and central Norway 

    Paulsen, Tora (Master thesis; Mastergradsoppgave, 2022-05-16)
    The introduction of pink salmon in the White Sea area during the second half of the 20th century has resulted in the establishment of a self-sustaining population of pink salmon in rivers draining to the Barents Sea and North Atlantic Ocean. The size and abundance of pink salmon is dependent on survival during the marine phase, where they acquire more than 95% of their body weight. Investigating ...
  • Exploring the potential of an online platform for citizen science-based ecological monitoring of plant- and wildlife on the high-Arctic Archipelago Svalbard 

    Bruholt, Linn (Master thesis; Mastergradsoppgave, 2022-05-16)
    Citizen science is increasingly used to include in ecological monitoring over the past three decades. Web-based applications or smart phones enable citizens to record observations or experiences at larger temporal and spatial scale and provide opportunities for a larger number of citizens to participate in mapping observations. Citizen science can also be used to record, or map observed and experienced ...
  • Bærekraft i oppdrettskonsepter: Hva er bærekraftig oppdrett og hvor bærekraftig er ulike oppdrettskonspeter? 

    Emblem-Lund, Henrik (Master thesis; Mastergradsoppgave, 2022-05-16)
    Vekst i norsk lakseoppdrett har ført til et økende fokus på bærekraft, etterfulgt av en oppgang i utvikling av nye oppdrettskonsepter for å løse utfordringene dagens næring står ovenfor. En tydelig forståelse i definisjon og operasjonalisering av bærekraft er avgjørende for riktig veivalg fremover. En forståelse som vil gjøre vurderinger og valg av ulike oppdrettskonsepter i et bærekraftaspekt enklere ...
  • Seabed minerals in Norway. An analysis of conflicts and sustainability issues. 

    Skancke, Ida Seljevoll (Master thesis; Mastergradsoppgave, 2022-05-16)
    The increasing demand for metals for use in renewable technologies and electronics has led to a surge in the interest in the minerals found on the seabed. The demand is driven by the need for green technologies to reach climate goals, population growth, and environmental, social, and economic challenges with today’s mining methods on land. Deep-sea mining is an industry still in its infancy, and ...
  • Å opparbeide endringskapasitet i en sykehusorganisasjon. En kvalitativ undersøkelse av endringsarbeid i en sykehusavdeling 

    Eriksdatter Tradin, Guro (Master thesis; Mastergradsoppgave, 2020-06-19)
    Temaet for denne studien er endringskapasitet i offentlige organisasjoner der mange organisasjoner ofte står i flere endringsprosesser samtidig. Hensikten er å få økt forståelse og kunnskap om hvordan organisasjoner som sykehussektoren håndtere endringer, samtidig som de må ivareta den daglige driften. I tillegg vil studien belyse hvordan et dynamisk begrep som endringskapasitet kan tilpasse seg ...
  • Environmental drivers of population-level variation in the migratory and diving ontogeny of an Arctic top predator 

    Grecian, W. James; Stenson, Garry B.; Biuw, Martin; Boehme, Lars; Folkow, Lars; Goulet, Pierre J.; Jonsen, Ian D.; Malde, Aleksander; Nordøy, Erling Sverre; Rosing-Asvid, Aqqalu; Smout, Sophie (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-02)
    The development of migratory strategies that enable juveniles to survive to sexual maturity is critical for species that exploit seasonal niches. For animals that forage via breath-hold diving, this requires a combination of both physiological and foraging skill development. Here, we assess how migratory and dive behaviour develop over the first year of life for a migratory Arctic top predator, the ...
  • Mid-summer vertical behavior of a high-latitude oceanic zooplankton community 

    Bandara, Kanchana; Basedow, Sünnje Linnéa; Pedersen, Geir; Tverberg, Vigdis (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-03-18)
    Vertical behavior, such as diel vertical migration (DVM) and swarming are widespread among zooplankton. At higher latitudes, synchronized DVM is mostly absent during summer and predominantly herbivorous copepods tend to form large near-surface swarms. This behavior is risky because it can make them vulnerable to visual predators. Here, we used ca. 12 days of mid-summer (28 June to 10 July 2018) ...
  • Increasing catch efficiency for Nephrops in deep-water shrimp (Pandalus borealis) trawl fisheries 

    Ingólfsson, Ólafur Arnar; Jørgensen, Terje; Sistiaga, Manu; Herrmann, Bent; Kvalvik, Liz Beate Kolstad (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-14)
    In Skagerrak and the North Sea, coastal vessels harvest deep-water shrimp (Pandalus borealis) in a mixed fishery, in which catches of Nephrops (Nephrops norvegicus) are of economic importance for the fleet. Fishermen targeting shrimp in this area must use a sorting grid with a maximum bar spacing of 19 mm, which means that only the smallest Nephrops can pass through the grid to be retained in the ...
  • De unge vil lære å lage spennende torskemiddager 

    Alm, Siril (Journal article; Tidsskriftartikkel, 2022-05-24)
    Sjømatkonsumet blant våre unge voksne fortsetter å synke. En Nofima-undersøkelse indikerer at konsumet kan økes hvis de blir inspirert til å lage spennende retter med hvit fisk.

View more