Viser treff 1021-1040 av 5233

    • Babymoon Tourism: Co-Creating Well-Being for Traveling Mothers 

      Vespestad, May Kristin (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-03)
      This article aims to provide insight into how babymoon tourism can contribute to well-being by using a multimethod approach, combining autoethnography and netnography. The findings show that mothers-to-be experience well-being derived from co-creation and meaning. Participation in activities and everyday-like events at the destination can lead to happiness and improved quality of life. Self-development, ...
    • The complete mitochondrial genome of the southern calanoid copepod Calanus simillimus Giesbrecht, 1902 

      Smolina, Irina Vladimirovna; Espinasse, Marina; Amundsen, Cesilie Røtnes; Espinasse, Boris Dristan (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-07-07)
      The complete mitochondrial genome of Calanus simillimus is 27,876 bp in length (GenBank accession OK500294) and containing 13 protein-coding genes (PCGs), 2 rRNA genes, 22 transfer RNA genes. The gene order is novel compared to other Calanus species and copepods with sequenced mitogenomes. Phylogenetic analysis suggests that C. simillimus represent a fourth group within Calanus genus in addition ...
    • Consequences of COVID-19 on the Reindeer Husbandry in Norway: a Pilot Study Among Management Staff and Herders 

      Fisktjønmo, Guro Hole; Næss, Marius Warg (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-05-02)
      The outbreak of COVID-19 has had an enormous impact on most of society. The most effective measure to prevent the spread has been reducing mobility, which is especially problematic for pastoralists relying on mobility to follow the movement of their livestock. We investigated to what degree Norwegian reindeer husbandry and the reindeer husbandry management system are affected by COVID-19 and government ...
    • Spatio-temporal Diptera visitation to Silene acaulis flowers studied with time-lapse cameras in Svalbard and Greenland 

      Klausen, Line (Master thesis; Mastergradsoppgave, 2022-08-15)
      Flower visitation by flying arthropods has mainly been studied by direct human observation, which usually neglects seasonal development of flower abundance even though this is known to be important for visitor dynamics and match between trophic levels. In the present study, the arthropod visitor community focusing on Diptera was investigated on the cushion plant Silene acaulis (L.) Jacq. in relation ...
    • Native Chilean Fruits and the Effects of Their Functional Compounds on Human Health 

      Ulloa-Inostroza, Elizabeth; Ulloa-Inostroza, Eric; Alberdi, Miren; Peña-Sanhueza, Daniela; González-Villagra, Jorge; Jaakola, Laura; Reyes-Diaz, Marjorie (Chapter; Bokkapittel, 2017-03-01)
      In recent years, there has been great interest in the nutraceutical compounds of fruits from native Chilean plant species. In this context, fruits of Amomyrtus meli (Meli), Aristotelia chilensis (Maqui), Berberis microphylla (Calafate), Luma apiculata (Arrayán), Luma chequén (Chequén), and Ugni molinae (Murtilla) growing predominantly in Chilean forests have been studied. This chapter has compiled ...
    • Surface chlorophyll anomalies induced by mesoscale eddy- wind interactions in the northern Norwegian Sea 

      Dong, Huizi; Zhou, Meng; Raj, Roshin Pappukutty; Smith, Walker O; Basedow, Sünnje Linnéa; Ji, Rubao; Ashjian, Carin; Zhang, Zhaoru; Hu, Ziyuan (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-09-29)
      The substantial productivity of the northern Norwegian Sea is closely related to its strong mesoscale eddy activity, but how eddies affect phytoplankton biomass levels in the upper ocean through horizontal and vertical transportmixing has not been well quantified. To assess mesoscale eddy induced ocean surface chlorophyll-a concentration (CHL) anomalies and modulation of eddywind interactions in ...
    • Cetacean presence on the northern Mid Atlantic Ridge revealed through passive acoustic monitoring 

      Dunning, Katherine; Ahonen, Heidi; Menze, Sebastian (Master thesis; Mastergradsoppgave, 2022-09-16)
      Cetaceans are known to utilise the Mid-Atlantic Ridge, a key topographical feature in the Atlantic Ocean, for migratory and feeding purposes. Passive acoustic monitoring was used over a one-year period (2007/2008) to identify cetacean vocalisations that occurred on a location near the Charlie Gibbs Fracture Zone. Using species-specific vocalisations that have previously been documented in the North ...
    • 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 ...