Sub-communities within this community

Collections in this community

Recent additions

  • Farm sustainability as a sustainability learning process in Arctic Norway 

    Halland, Hilde (Doctoral thesis; Doktorgradsavhandling, 2022-11-03)
    Sustainability is proposed as a solution to the many negative consequences of modern agriculture. However, although science and policy have aimed for sustainability for more than two decades, it seems that we are not making enough progress. This is due to the complexities of the sustainability concept and that we need to better understand how we can create change. In seeing sustainability as a ...
  • Trading Time Seasonality in Commodity Futures: An Opportunity for Arbitrage in the Natural Gas and Crude Oil Markets? 

    Ewald, Christian Oliver; Haugom, Erik; Lien, Gudbrand; Størdal, Ståle; Wu, Yuexiang (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-29)
    In this paper we investigate energy futures contracts and the presence of a type of seasonality, that has been given very little to no attention in the literature – we call it trading time seasonality. Such seasonality is exposed through the futures trading time, not its maturity time, nor the underlying spot price. As we show, it can be linked to seasonality in the pricing kernel, but the latter ...
  • Spatio-Temporal Variability of Suspended Particulate Matter in a High-Arctic Estuary (Adventfjorden, Svalbard) Using Sentinel-2 Time-Series 

    Walch, Daniela M. R.; Singh, Rakesh K.; Søreide, Janne E.; Lantuit, Hugues; Poste, Amanda (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-29)
    Arctic coasts, which feature land-ocean transport of freshwater, sediments, and other terrestrial material, are impacted by climate change, including increased temperatures, melting glaciers, changes in precipitation and runoff. These trends are assumed to affect productivity in fjordic estuaries. However, the spatial extent and temporal variation of the freshwater-driven darkening of fjords remain ...
  • Impact of the COVID-19 pandemic on human-nature relations in a remote nature-based tourism destination 

    Mul, Evert; Murguzur, Francisco Javier Ancin; Hausner, Vera Helene (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-29)
    Tourism and nature-based recreation has changed dramatically during the COVID-19 pandemic. Travel restrictions caused sharp declines in visitation numbers, particularly in remote areas, such as northern Norway. In addition, the pandemic may have altered human-nature relationships by changing visitor behaviour and preferences. We studied visitor numbers and behaviour in northern Norway, based on ...
  • Effect of codend mesh sizes on the size selectivity and exploitation pattern of cocktail shrimp (Trachypenaeus curvirostris) in shrimp trawl fishery of the South China Sea 

    Yang, Bingzhong; Herrmann, Bent (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-29)
    This study aims at improving fishery management by testing and comparing the size selectivity and exploitation pattern of diamond-mesh codends, with mesh sizes ranging from 25 to 54 mm, for cocktail shrimp (Trachypenaeus curvirostris) in the South China Sea (SCS). Beginning from 25 mm, the minimum mesh size regulated by the shrimp trawl fishery industry, we investigated how the mesh sizes of ...
  • Impact of climatic change on alpine ecosystems: inference and prediction 

    Yoccoz, Nigel; Delestrade, Anne; Loison, Anne (Journal article; Tidsskriftartikkel; Peer reviewed, 2011-01-26)
    Alpine ecosystems will be greatly impacted by climatic change, but other factors, such as land use and invasive species, are likely to play an important role too. Climate can influence ecosystems at several levels. We describe some of them, stressing methodological approaches and available data. Climate can modify species phenology, such as flowering date of plants and hatching date in insects. It ...
  • Life history adaptations to fluctuating environments: Combined effects of demographic buffering and lability 

    Le Coeur, Christie; Yoccoz, Nigel; Salguero-Gómez, Roberto; Vindenes, Yngvild (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-20)
    Demographic buffering and lability have been identified as adaptive strategies to optimise fitness in a fluctuating environment. These are not mutually exclusive, however, we lack efficient methods to measure their relative importance for a given life history. Here, we decompose the stochastic growth rate (fitness) into components arising from nonlinear responses and variance–covariance of demographic ...
  • Spatial occurrence and abundance of marine zooplankton in Northeast Greenland 

    Beroujon, Théo; Schou Christiansen, Jørgen; Norrbin, Fredrika (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-20)
    We present a large-scale survey of mesozooplankton (size range 0.2–20 mm) across coastal, shelf, and slope locations in Northeast Greenland (latitudes 74–79° N, August 2015 and September 2017). Our study is centred on the Video Plankton Recorder (VPR) for non-invasive in situ observations of taxa distribution and abundance while simultaneously recording oceanographic profiles. A modified WP-2 plankton ...
  • Privat gevinst på fellesressurser 

    Bertheussen, Bernt Arne (Chronicle; Kronikk, 2022-09-29)
  • Effect of Codend Design and Postponed Bleeding on Hemoglobin in Cod Fillets Caught by Bottom Trawl in the Barents Sea Demersal Fishery 

    Jensen, Tonje Kristin; Tobiassen, Torbjørn Inge; Heia, Karsten; Møllersen, Kajsa; Larsen, Roger B.; Esaiassen, Margrethe (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-03)
    Previous studies have reported that cod caught using a newly developed dual sequential codend showed significant reduction in external catch-related damage compared to cod caught by a conventional codend. In this study, it was investigated whether this new codend affects residual blood in cod fillets and/or mitigates the effect of postponed bleeding. Residual blood was assessed by measuring ...
  • Atmospheric CO2 drawdown, community dynamics and selection of surface microbiomes in marine cold-water ecosystems 

    Aalto, Nerea Johanna (Doctoral thesis; Doktorgradsavhandling, 2022-10-10)
    <p>The European Arctic is characterized by large surface areas of coastal seas and long coastlines where important ecosystem processes are regulated by marine microbiomes that contribute to global carbon cycling via primary productivity and atmospheric CO<sub>2</sub> drawdown. In addition to biogeochemical cycling, these complex microbial ecosystems also support major marine food webs and lend ...
  • Catch quality of Northeast Atlantic cod (Gadus morhua) caught by bottom trawl and gillnet – Effects of changes in gear design and fishing practices 

    Jensen, Tonje Kristin (Doctoral thesis; Doktorgradsavhandling, 2022-10-07)
    <p>Cod caught with bottom trawls and gillnets have often been associated with poor and variable quality, and little is known about how changes in gear design and fishing practices may influence the quality of fish caught by these two fishing gears. It is difficult, if not impossible, to improve catch quality if fish are damaged during the capture process. Therefore, preventing the deterioration of ...
  • Importance of bacteria and protozooplankton for faecal pellet degradation 

    Morata, Nathalie; Seuthe, Lena (Journal article; Tidsskriftartikkel; Peer reviewed, 2014)
    The degradation mechanisms of faecal pellets are still poorly understood, although they determine their contribution to vertical fluxes of carbon. The aim of this study was to attempt to understand the microbial (bacteria and protozooplankton) degradation of faecal pellets by measuring the faecal pellet carbon-specific degradation rate (FP-CSD) as an indicator of pellet degradation. ‘In situ’ and ...
  • Marine mammal consumption and fisheries removals in the Nordic and Barents Seas 

    Skern-Mauritzen, Mette; Lindstrøm, Ulf Ove; Biuw, Martin; Elvarsson, Bjarki; Gunnlaugsson, Thorvaldur; Haug, Tore; Kovacs, Kit M.; Lydersen, Christian; McBride, Margaret; Mikkelsen, Bjarni; Øien, Nils Inge; Víkingsson, Gísli (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-28)
    In this study, we assess prey consumption by the marine mammal community in the northeast Atlantic [including 21 taxa, across three regions: (I) the Icelandic shelf, Denmark Strait, and Iceland Sea (ICE); (II) the Greenland and Norwegian Seas (GN); and (III) the Barents Sea (BS)], and compare mammal requirements with removals by fisheries. To determine prey needs, estimates of energetic requirements ...
  • Spatio-temporal turnover and drivers of bentho-demersal community and food web structure in a high-latitude marine ecosystem 

    Pecuchet, Laurene; Jørgensen, Lis Lindal; Dolgov, Andreyv V.; Eriksen, Elena; Husson, Berengere; Skern-Mauritzen, Mette; Primicerio, Raul (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-14)
    Aim: Assess the spatial and temporal turnover of bentho-demersal marine fauna by integrating ecological metrics at the community and food web levels and evaluate their main environmental and anthropogenic drivers.<p> <p>Location: Barents Sea. <p>Method: We analysed data of benthic and bentho-pelagic fish and megabenthic invertebrates caught in the Barents Sea ecosystem survey in August–Septem ...
  • Combining local and international embeddedness in a rural context 

    Jørgensen, Eva Jenny Benedikte (Chapter; Bokkapittel, 2022-10-27)
    The aim of this chapter is to explore the distinctiveness of international entrepreneurship in a rural context. Based on theory about international entrepreneurship, rural entrepreneurship and embeddedness, the study explores how international small and medium sized enterprises (SMEs) are embedded in their local and international contexts and how these two forms of embeddedness are combined. A case ...
  • Proximity dimensions and dynamics within an organisation: experiences from a change process 

    Jørgensen, Eva Jenny B.; Olafsen, Anja Hagen; Nilsen, Etty Ragnhild (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-06-16)
    Proximity between actors within an organisation can be relevant for interactive learning and innovation because it promotes collaboration and knowledge exchange. However, proximity has mainly been studied as a characteristic of the relationships between actors belonging to different organisations. In this paper, a case study of a faculty at a university is used to investigate proximity within this ...
  • Meroplankton on Arctic inflow shelves: Diversity, seasonality and origins of benthic invertebrate larvae on the Barents and Chukchi shelves 

    Descôteaux, Raphaëlle (Doctoral thesis; Doktorgradsavhandling, 2022-10-05)
    Planktonic early life stages of marine benthic invertebrates play an important role in dispersal and at times represent a substantial proportion of the zooplankton. Information about the larval communities present on the Arctic inflow shelves of the Barents and Chukchi Seas, however, is incomplete and limited because of infrequent sampling and low resolution of identification. The aims of the work ...
  • Langt hjemmefra 

    Finstad, Bjørn-Petter; Normann, Anne Katrine (Journal article; Tidsskriftartikkel, 2022-04-06)
    Europa står i en krisesituasjon, med den største strømmen av mennesker på flukt siden andre verdenskrig, og kvinner og barn betaler som vanlig en høy pris. Men krig har brakt ukrainske kvinner til Norge før.
  • Chemosynthetic and photosynthetic trophic support from cold seeps in Arctic benthic communities 

    Åström, Emmelie; Bluhm, Bodil; Rasmussen, Tine Lander (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-08-17)
    Benthic communities below the photic zone are largely reliant on the export of surface-water primary production and the flux of partially degraded organic matter to the seabed, i.e. pelagic−benthic coupling. Over the past decades, however, the role of chemosynthetically produced carbon in food webs has been recognized in various habitats. Cold seeps are now known to be widespread across circumpolar ...

View more