Recent additions

  • Allochthonous Allelopathy. Effects of Empetrum nigrum chemical interference on plant development 

    Pilsbacher, Anna Katharina (Master thesis; Mastergradsoppgave, 2016-05-20)
    The dwafshrub Empetrum nigrum uses phenolic compounds exuded by its leaves to depress the germination and growth of its surroundings. The allelopathic effect has, only been studied in areas immediately surrounding the plant (autochthonous allelopathy) but not in an open system apptoach that takes into account that a multitude of EMpetrum nigrum leaves get introduced into new environments through ...
  • Species validity of five common northern/Arctic spring bloom diatoms: a combined morphological and molecular study 

    Uradnikova, Martina (Master thesis; Mastergradsoppgave, 2020-02-15)
    Relevant taxonomical morphological characters of five common spring bloom centric diatoms, preliminary identified as Attheya longicornis Crawford & Gardner, Chaetoceros furcellatus Yendo, Porosira glacialis Jørgensen, Coscinodiscus sp. and Skeletonema marinoi Sarno & Zingone were observed and described using light and scanning electron microscope. Further, samples of cultured diatoms were sent to ...
  • Investigating population genomic structure of salmon lice (Lepeophtheirus salmonis) in northern Norway 

    Banno, Kana (Master thesis; Mastergradsoppgave, 2019-05-14)
    Salmon louse (Lepeophtheirus salmonis) is a parasitic copepod that causes significant damage to Atlantic salmon (Salmo salar) and incurs significant costs to the salmonid aquaculture industry. In Norway, the industry has been coping with salmon lice issues with various methods such as chemical treatments, but it has resulted in an acquisition of resistance in salmon lice towards the existing delousing ...
  • Assessing winter pasture quality in Sunnfjord wild reindeer area 

    Slåtsveen, Trine-Lise (Master thesis; Mastergradsoppgave, 2019-11-30)
    Winter pastures are bottlenecks for population trends for wild reindeer, and the quality and availability are important parameters when managing populations. Sunnfjord, considered on of the smallest wild reindeer districts in Norway, have never had a comprehensive evaluation of accessible winter pasture within. The aim of study is to assess the quality of winter forage in all tree sub- areas within ...
  • Comparative effects of two temperatures (0 & 3 °C) on Polar cod embryonic and larval development 

    Jones, Connie (Master thesis; Mastergradsoppgave, 2019-11-14)
    Polar cod (Boreogadus saida) are particularly vulnerable to climate change. Increasing our knowledge of polar cod development will help improve our understanding of the impact of climate change and the impacts this might have on the population. This study aimed at characterizing the development of Polar cod from fertilisation to 86 days post fertilisation (dpf) at two temperatures within their ...
  • Recreational fisheries target declining populations of brown trout (Salmo trutta L.) in Northern Norway as revealed by a genome wide array of SNP markers 

    Schmidt, Simon Nordblad (Master thesis; Mastergradsoppgave, 2019-11-15)
    Marine recreational and commercial exploitation of salmonids often target a mixed stock consisting of genetically distinct and independent populations with varying abundances, life histories, standing genetic variation, and conservation status. In this study we use SNP markers to investigate the genetic population structure of juvenile brown trout (Salmo trutta L.) from five distinct watercourses ...
  • The feeding ecology of harbour porpoises (Phocoena phocoena) in Norwegian coastal communities: a combined approach using stable isotope and stomach content analyses 

    Saint-André, Camille (Master thesis; Mastergradsoppgave, 2019-09-20)
    The harbour porpoise is a key predator in Norwegian coastal communities, therefore studying its feeding ecology is important to understand its ecological role and may shed light on the dynamics of Norwegian coastal ecosystems. The diet of 134 harbour porpoises bycaught in Autumn 2016 (n = 61) and Spring 2017 (n = 73) in Norwegian coastal waters and fjords was investigated using both stable isotopes ...
  • Effect of Antiviral Drugs against Cervid Herpesvirus 2 (CvHV2) in vitro 

    Magnuson, Emily Elizabeth (Master thesis; Mastergradsoppgave, 2018-11-15)
    Cervid herpesvirus 2 (CvHV2) is an alphaherpesvirus found in Rangifer subspecies throughout most of the circumpolar Arctic and the causative agent of infectious keratoconjunctivitis (IKC) in semi-domesticated Eurasian tundra reindeer (Rangifer tarandus tarandus). IKC occurs as regular outbreaks, affecting dozens of reindeer in a herd, and is most common and severe among calves and young animals. IKC ...
  • Yearly variation in allelopathic compound production along a climatic gradient. A case of study of Empetrum nigrum 

    Moriana Armendariz, Mikel (Master thesis; Mastergradsoppgave, 2017-11-15)
    Empetrum nigrum is a plant common in northern ecosystems with capacity to produce allelopathic compounds, which among other effects inhibit seed establishment and germination of other plants. Some of the most studied compounds regarding this effect are batatasin-III and phenolic acids, among them caffeic acid, which account for a large proportion of the leaf’s biomass. 5 random sites were established ...
  • Recolonization and succession of a subtidal hard-bottom epibenthic community in Smeerenburgfjorden, NW Svalbard. 

    Keck, Amalia (Master thesis; Mastergradsoppgave, 2018-05-15)
    Rapid changes to the physical environment of Arctic marine systems in recent years impact the structure and function of benthic ecosystems. Exploring the resilience of these systems to perturbations requires a solid understanding of key ecological processes and must be conducted over appropriate time scales due to the slow growth and recruitment of many Arctic benthic organisms. This study addresses ...
  • Seasonal and ontogenetic variation in the infection of intestinal parasites in Arctic charr (Salvelinus alpinus) and brown trout (Salmo trutta) in a subarctic lake. 

    Prati, Sebastian (Master thesis; Mastergradsoppgave, 2019-05-14)
    The vast majority of studies in northern lake systems have been carried out on a short-term scale, principally during spring and summer and mostly focusing on a single parasite species. There are few winter studies of fish parasites in the subarctic area, and even less regarding seasonal variations in the sub-communities of intestinal parasites in Arctic charr (Salvelinus alpinus) and brown trout ...
  • Drones and marine mammals in Svalbard 

    Palomino Gonzalez, Albert (Master thesis; Mastergradsoppgave, 2019-07-15)
    The impact of Remote Piloted Aircraft Systems (RPAS, or drones) on marine mammals remains poorly documented despite their increasing use by hobbyists and scientists. In the High-Arctic Archipelago of Svalbard, where marine mammals are facing increasing pressure from the coupled effects of climate modification and an expanding tourism industry, the use of RPAS remains largely unregulated to date. In ...
  • A patch of Calanus finmarchicus in the Lofoten-Vesterålen Region. Characteristics and determining factors 

    Santana Hernández, Néstor (Master thesis; Mastergradsoppgave, 2019-05-16)
    Zooplankton patchiness has been documented in many shelf areas and is of vital importance for understanding predator-prey relationships in pelagic marine systems. By combining hydrographic, acoustic and net data collected in spring 2017, we present a detailed understanding of the extent of this phenomenon in the Lofoten-Vesterålen region. Such patches are of potential interest not only for zooplankton ...
  • DNA metabarcoding of deep-sea sediment communities using COI: community assessment, spatio-temporal patterns and comparison with the 18S rDNA marker 

    Atienza Casas, Sara (Master thesis; Mastergradsoppgave, 2019-06-15)
    The deep sea is the largest biome on Earth, albeit it is the least studied. Among the complex ecosystems and habitats that form the deep sea, submarine canyons and open slope systems are regarded to be potential hot-spots of biodiversity. The Mediterranean Sea hosts the 8.86% of the inventoried submarine canyons in the global ocean, like the Blanes Canyon, located in its Northwestern section. We ...
  • Cardiotoxic Effects from the Water-Soluble Fraction of Crude Oil on an Arctic Keystone Species – Polar Cod (Boreogadus saida) 

    Teisrud, Ragnar Nicolaysen (Master thesis; Mastergradsoppgave, 2019-05-23)
    The Arctic ecosystems and its species are under increased anthropogenic pressure from both climate change and industrial activities. Of special interest is pollution from petrogenic substances, and in particular accidental oil spills, that pose a risk to arctic marine organisms. An oil spill in the Arctic may see crude oil encapsulated into the sea ice and over time leaching to surface waters in the ...
  • Comparison of eyfluke (Diplostomum spp.) infections of polymorphic whitefish (Coregonus lavaretus L.) populations in two sub-Arctic Norwegian lakes 

    Øie, Ida (Master thesis; Mastergradsoppgave, 2018-08-15)
    Abstract Parasites might be small, but they are very important elements in the ecosystems. Parasites may have a strong negative influence on their host, and some species might even manipulate their hosts. Parasites commonly have complex life cycles and may use multiple different hosts. This study has been conducted in two sub-arctic lakes in Northern Norway with polymorphic whitefish populations. ...
  • Decomposition in differing snow regimes in high Arctic Svalbard 

    Heavyside, Paige Kathryn (Master thesis; Mastergradsoppgave, 2019-05-29)
    Rapidly rising temperatures are having great effects on the high arctic ecosystem, historically characterized by long, cold winter periods, and cold dry summers. Due to the length of the winter season, arctic soils have been an important carbon sink, but may now be facing increased microbial activity due to increasing temperatures. Temperature, moisture, and litter quality play important roles in ...
  • Cardiotoxic Effects from the Water-Soluble Fraction of Crude Oil on an Arctic Keystone Species – Polar Cod (Boreogadus saida) 

    Teisrud, Ragnar Nicolaysen (Master thesis; Mastergradsoppgave, 2019-05-23)
    Abstract The Arctic ecosystems and its species are under increased anthropogenic pressure from both climate change and industrial activities. Of special interest is pollution from petrogenic substances, and in particular accidental oil spills, that pose a risk to arctic marine organisms. An oil spill in the Arctic may see crude oil encapsulated into the sea ice and over time leaching to surface ...
  • Development of diving capacity and behaviour in harp seal (Pagophilus groenlandicus) weanlings from the Greenland Sea Stock 

    Malde, Aleksander (Master thesis; Mastergradsoppgave, 2019-05-15)
    This study represents one of the first studies that has explored the spatial and temporal differences in diving behaviour of weaned harp seal pups (Pagophilus groenlandicus) from the Greenland Sea stock. The study is also the first to map the weaned harp seal pups from the Greenland Sea population. In April 2017, newly weaned harp seal pups (n=26) from the Greenland Sea stock were tagged with satellite ...
  • In Silico Screening for inhibitors against Apicoplast Phosphate Translocator from Toxoplama gondii 

    Shamsuzzaman, Muhammad (Master thesis; Mastergradsoppgave, 2019-05-16)
    Apicomplexa parasites, including Toxoplasma gondii and Plasmodium falciparum, contain a secondary endosymbiosis-derived plastid like organ, called apicoplast, which is an anabolic hub. This apicoplast is fueled by phosphate translocator (APT), which transport phosphorylated sugar molecules in exchange of inorganic phosphate. Disruption of APT in T. gondii was found to be lethal for parasite. Beside ...

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