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  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 ...
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  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 ...
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  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 ...
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  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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  Differences in chick feeding frequency between parental sex and morph combination in the Common guillemot Uria aalge 

  Holmøy, Marthe Johansen (Master thesis; Mastergradsoppgave, 2019-05-15)

  The Common guillemot (Uria aalge) is a monomorphic seabird who exhibits two colour morphs: a bridled and an unbridled. The aim of this study was to investigate which effect parental sex and morph had on the daily chick feeding frequency and during the chick-rearing period. To assess this, two fixed time-lapse cameras were used to document the chick feeding frequency for 27 Common guillemot families ...
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  Ringed seal (Pusa hispida) diet on the west coast of Spitsbergen, Svalbard, Norway 

  Bengtsson, Olof Mikael (Master thesis; Mastergradsoppgave, 2019-05-15)

  The diet of 99 coastal-feeding ringed seals (Pusa hispida), collected in western Spitsbergen, Svalbard (Norway), was analysed via identification of hard-parts in the contents of their gastrointestinal tracts (GITs). The study animals where shot either in spring (n = 30; April-July) or autumn (n = 69; August-October) during four consecutive years (2014-2017). Thirty different prey types were identified ...
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  Brain capillarization in diving mammals: a selection of staining and quantification methods 

  Ciccone, Chiara (Master thesis; Mastergradsoppgave, 2019-05-15)

  Diving species can cope with acute and repeated hypoxia through adaptations that are absent in non-diving animals. One of the greatest challenges to deal with during diving is the lowering of the arterial oxygen pressure (PaO2), which causes a decrease in the driving force for the oxygen diffusion from the capillaries to the cells. My hypothesis is that the marine mammalian brain shows improved brain ...
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  Riverine and glacier influence on infaunal benthic communities in Isfjorden, Svalbard. 

  Ugelstad, Charlotte Pedersen (Master thesis; Mastergradsoppgave, 2019-05-15)

  Fjords are the interface between land and ocean, and processes happening on land have implication for the coastal areas. In addition, differences in fjord characteristics, such as morphology, sedimentation and water circulation, can drive differences in fjord ecology, including benthic community composition (Syvitsky et al. 1986). Soft-bottom macro-fauna was collected in August 2018 using a Van-Veen ...
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  Seasonality in mercury bioaccumulation in particulate organic matter and zooplankton in a river-influenced Arctic fjord (Adventfjord, Svalbard). 

  Carrasco, Nathalie (Master thesis; Mastergradsoppgave, 2019-05-15)

  Methylmercury (MeHg) is of concern because it has the capacity to readily bioaccumulate and biomagnify along trophic levels until humans, exhibiting toxic effects such as neurotoxicity. Increased permafrost melt (that stores large amounts of carbon and mercury (Hg)) and river inputs, are expected to increase the exposure to Hg through uptake and transfer of contaminants through the food web. The ...
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  Activity of XTHs during host plant infection by the parasitic plant Cuscuta. 

  Sarfowaa, Adwoa (Master thesis; Mastergradsoppgave, 2019-05-15)

  Parasitic plants including Cuscuta develop specialized structures called haustoria during infection. These specialized organs give the parasite the capacity of host attachment, invasion, vasculature connection and material transfer between the host and the parasite. Successful invasion allows organic substances, nutrients and water to flow into the parasite through the host phloem and xylem cells. ...
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  Time dependent temperature effects on methane production in Arctic peat soils 

  Grunnvåg, Jeanette Slettnes (Master thesis; Mastergradsoppgave, 2019-05-16)

  Peatlands constitute the largest natural reservoir of carbon on the planet making them key components in the global carbon balance. Peatlands are mostly found in the northern hemisphere under cold conditions. As the world is warming and arctic peatlands are becoming heavily influenced by increasing temperatures, an increased interest in the peat soil microbial systems have arisen. Methane, a potent ...
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  Immunotoxicity of organo-halogenated contaminants in Norwegian white-tailed eagle Haliaeetus albicilla nestlings 

  Hansen, Elisabeth (Master thesis; Mastergradsoppgave, 2019-05-15)

  Marine top predators are characterised by high levels of biomagnifying pollutants, such as organo-halogenated contaminants (OHCs). OHCs are man-made chemicals and many of them have been found to induce detrimental effects to wildlife. Marine top predators therefore represent good biological models to assess the impact of anthropogenic pollutants on wildlife health. In this study, we used a sentinel ...
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  Toxicology of the Svalbard Atlantic Puffin 

  Underwood, Arin Kendall Povelite (Master thesis; Mastergradsoppgave, 2019-05-19)

  The Arctic is a sink for pollutants that accumulate there via long-range transport and biomagnification of persistent organic pollutant (POPs). The main objectives of this study were to identify the pollutants in the Svalbard Atlantic puffin and to compare their levels with southern puffin colonies and Svalbard seabird species to assess risk to the puffin. Svalbard Samples were analysed for contaminants ...
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  Impacts of water level regulation on trophic niche and growth of Arctic charr (Salvelinus alpinus) and brown trout (Salmo trutta) in Norwegian hydropower reservoirs 

  Kytökorpi, Mikko Antero (Master thesis; Mastergradsoppgave, 2019-05-15)

  Hydropower is among the largest renewable energy sources globally. However, it can have drastic environmental and socio-economic impacts on dammed lakes (i.e., reservoirs) and rivers where water levels are regulated due to hydropower operations. Water level regulation in hydropower reservoirs is known to be a large environmental problem, leading to changes in the abiotic conditions, which subsequently ...
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  Musculoskeletal symptoms among workers in the commercial fishing fleet of Norway 

  Sandsund, Mariann; Øren, Anita; Thorvaldsen, Trine; Holmen, Ingunn; Sønvisen, Signe; Heidelberg, Cecilie Thon; Aasmoe, Lisbeth (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-06-25)

  <i>Background</i>: Fishers exposed to unfavourable environmental conditions may suffer negative health ef- fects. This study aimed to identify musculoskeletal symptoms in professional fishers in Norway using data from several sources; register data, telephone survey and questionnaire.<p> <p><i>Materials and methods</i>: Professional fishers (n = 25,971) registered in the period 2008-2013 were ...
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  Seasonal abundance and activity of sympagic meiofauna in Van Mijenfjorden, Svalbard 

  Pitusi, Vanessa (Master thesis; Mastergradsoppgave, 2019-05-15)

  The importance of landfast ice as a nursery and breeding ground for Arctic marine invertebrates was studied in Van Mijenfjorden (77°N, 15/16°W), southwestern Svalbard from March to May 2017. The collection of first-year ice cores with stations along a depth gradient allowed the investigation of both temporal and spatial differences in sympagic meiofauna community composition and abundance. Furthermore, ...
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  Zooplankton communities on the Northeast coast of Greenland. How can we explain vertical and regional distribution? 

  Beroujon, Théo (Master thesis; Mastergradsoppgave, 2019-05-16)

  Most studies on zooplankton investigate the famous, and omnipresent, Calanoid copepods Calanus spp., because they are abundant, and constitute the major trophic link in marine ecosystems. Indeed, Northeast Greenland is located on the crossroad of Arctic and Atlantic waters which, potentially, can lead to a high biodiversity originating from different domains of marine life. However, there are very ...
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  Perception and Appreciation of Plant Biodiversity, An assessment of human perception and appreciation of plant biodiversity using photography of artificial plant communities 

  Breitschopf, Eva (Master thesis; Mastergradsoppgave, 2017-07-31)

  Anthropogenically caused global biodiversity declines and other human drivers point to the possibility of local plant diversity changes. The well-studied effects of local plant diversity on ecosystem processes implicate consequences to human well-being in the form of altered ecosystem services (including cultural services). Public awareness (knowledge and correct perception) about these changes ...
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  Sammenslåingen til Ishavsbyen videregående skole: En suksess? En kvalitativ studie av sammenslåingen av Breivika videregående skole og Tromsø maritime skole 

  Torblå, Eirin Anne Karlsen; Rydning, Wenche Margrethe (Master thesis; Mastergradsoppgave, 2019-05-31)

  Denne oppgaven dreier seg om sammenslåingen av Tromsø Maritime skole (TMS) og Breivika videregående skole til Ishavsbyen videregående. Sammenslåingen omfatter foreløpig bare organisatoriske endringer, men skal også innebære geografisk samlokalisering når et nytt skolebygg står klart om tre til fem år. Sammenslåingen foregår som et prosjekt parallelt med daglig drift. Vinklingen vi har valgt for ...
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  Hvordan oppleves motivasjon og engasjement hos ansatte i Sparebank 1 Nord-Norge i dag, og hva kan gjøres for å tilrettelegge for motiverte ansatte som fremmer bankens målrealisering. 

  Solvang, Frank-Halvar (Master thesis; Mastergradsoppgave, 2019-05-31)

  Formålet med denne oppgaven har vært å forsøke å redegjøre for hvilke faktorer ved jobb og ledelse som tilrettelegger for motivasjon i organisasjonen Sparebank 1 Nord-Norge. Bank- og finansnæringen går i likhet med mange andre områder av samfunnet gjennom en omfattende teknologisk utvikling, og da er det viktig at de menneskelige ressursene er motiverte for å klare å takle slike omfattende endringer, ...

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