Doktorgradsavhandlinger (BFE-fak): Nye registreringer
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Why do Prices Change? An Analysis of Supply and Demand Shifts and Price Impacts in the Farmed Salmon Market
(Doctoral thesis; Doktorgradsavhandling, 2014-09-01)Price changes in any market are essentially due to shifts in supply relative to demand. In a global market there can be several simultaneous supply and demand shifts in different geographical locations, all affecting prices to different extents. This dissertation focuses on procedures for measuring such shifts and their relative effects on prices by looking at the global market for farmed salmon ... -
Studies of JAK/STAT signaling in Atlantic salmon
(Doctoral thesis; Doktorgradsavhandling, 2014-06-27)In mammals the JAK-STAT pathway plays a significant role in mediating the biological activities of both type I and type II IFN, where JAKs are receptor associated kinases and STATs the transcription factors they activate. At the start of this project the knowledge of the JAK-STAT pathway in fish in general was scarce and there were few reports describing the function of any JAK-STAT family member ... -
Foraging, reproduction and survival of the zooplanktivorous seabird Little Auk (Alle alle) in the Arctic in relation to climatic and environmental variability
(Doctoral thesis; Doktorgradsavhandling, 2014-06-23)The ability of individuals to acquire and store energy for life-history traits such as reproduction and survival, is finite. This demands prioritizing some traits at the expense of other traits. Which traits to prioritize, depends on the life-history strategy of a species. ‘Slow’-living species, in contrast to ‘fast’-living species, mature late, produce small broods, have low extrinsic mortality and ... -
Health benefits of seafood consumption - with special focus on household preparations and bioactivity in animal models
(Doctoral thesis; Doktorgradsavhandling, 2014-06-24)Fish consumption is well acknowledged to reduce risk of cardiovascular disease, the health benefits mainly being associated with EPA and DHA. Increasing evidence, however, demonstrate that also the proteins and other bioactive compounds may be of relevance to human health. This project was initiated in order to examine the nutritional composition and bioactivity related to cardiovascular disease ... -
A trait-based assessment of the Barents Sea fish community: implications for vulnerability under environmental change
(Doctoral thesis; Doktorgradsavhandling, 2014-06-06)SUMMARY This is a study of the fish community in the Barents Sea and its vulnerability to disturbance such as fishing and climate change. The vulnerability of the fish community depends on its sensitivity to, and adaptability under, stress. To assess these two components of vulnerability, I have combined survey data from the Barents Sea with information about the species properties (i.e., ... -
Hard-bottom benthic ecosystem in Kongsfjorden, a glacial fjord in the Arctic.
(Doctoral thesis; Doktorgradsavhandling, 2014-06-04)Subtidal hard-bottom habitats constitute substantial parts of the Arctic fjord ecosystem. There is a deficiency in complex faunistic surveys of the composition of hard-bottom fauna in the Arctic. The aim of this study was to increase the understanding of how animals are distributed on hard-bottom and their role in the marine ecosystem in the Arctic. A baseline study of hard-bottom zoobenthos in ... -
Diversity of marine wood-inhabiting fungi in North Norway
(Doctoral thesis; Doktorgradsavhandling, 2014-05-27)Marine fungi in arctic waters have rarely been studied. The main aim of this thesis was to explore the diversity of driftwood inhabiting fungal communities in the cold waters of North Norway. In order to gain as comprehensive view as possible, different methodological approaches were applied on the same study substrates, and the recovered fungal communities were analysed for taxonomic, phylogenetic ... -
Regjerlig kyst? Kunnskap og politikk i kystsoneplanlegging
(Doctoral thesis; Doktorgradsavhandling, 2014-05-23)Hvordan forvaltes kystsonen? Denne avhandlingen søker å gi svar på dette spørsmålet ved å følge en kommunal kystsoneplanprosess. Case-området er Alta kommune. Avhandlingen studerer hvilke praksiser de kommunale planmyndighetene har satt i gang for å utarbeide en arealplan for sjøområdet. Hvordan har kommunen organisert planprosessen? Hvordan foretar planmyndighetene avveininger mellom ulike interesser? ... -
Lokale rettighetsforståelser i fiskeriforvaltningen
(Doctoral thesis; Doktorgradsavhandling, 2014-04-09)Fordeling av rettigheter til ressurser og rettferdig fordeling av ressursene er sentrale forhold ved ressursforvaltningen. Spennet mellom hvordan naturressursene faktisk forvaltes, og synspunkter på hvordan de bør forvaltes, kan være stort og tidvis konfliktfylt. Dette er det også ulike meninger om, avhengig av hvem som blir spurt, og hvem sine interesser som får gjennomslag i ressursforvaltningen. ... -
Microbial communities and metabolic networks in Arctic peatlands
(Doctoral thesis; Doktorgradsavhandling, 2014-05-02)Arctic peatlands store more than one sixth of the soil organic carbon (SOC) on Earth. Microorganisms decompose SOC, leading to the production of the greenhouse gases methane (CH4) and carbon dioxide (CO2). Large temperature increases are predicted in the Arctic towards the end of the century (1–6 °C in summer and 2–11 °C in winter). How the microorganisms in Arctic peatlands will respond to this ... -
Indonesia: Innovation strategies and competitive forces to enter the European seafood market
(Doctoral thesis; Doktorgradsavhandling, 2014-03-20)Aims – This thesis examines the capabilities of the Indonesian seafood export industry to enter the European market, which is the world’s largest seafood importer. The aim is to offer a knowledge-based competitive marketing strategy which is analysed in four parts: Paper I: Competitive framework; Paper II: Legal barriers; Paper III: Demand for seafood trade innovation in Europe; Paper IV: The ... -
Storytelling and story staging. Co-creating value in tourism.
(Doctoral thesis; Doktorgradsavhandling, 2014-04-01)This thesis is about tourism firms as co-creators of value in tourist activities. It will explore how tourism firms communicate, particularly by using storytelling, to enhance co-creation of value with tourists. A central perspective used in this thesis is Service Dominant Logic, a logic that posits that service providers can only co-create value with their customer, not for them (Vargo and Lush ... -
Induction of Atlantic salmon type I interferon and antagonism by infectious pancreatic necrosis virus
(Doctoral thesis; Doktorgradsavhandling, 2014-04-08)Viral infections are a leading cause of mortality in the farming of Atlantic salmon in Norway. Viral outbreaks cause heavy losses each year, and one of the most predominant viral diseases is infectious pancreatic necrosis (IPN). The virus causing this disease, the infectious pancreatic necrosis virus (IPNV), belongs to the Birnaviridae family of viruses with a double-stranded RNA (dsRNA) genome. ... -
Effects of latitudinal climate conditions on quality attributes in Brassica oleracea
(Doctoral thesis; Doktorgradsavhandling, 2014-02-17)Brassica is a genus of plants that includes vegetables that are widely used for human consumption and contain high levels of health-promoting compounds. These vegetables are grown in large parts of the world, and the environmental conditions where they are cultivated can affect several quality attributes. The research presented in this thesis examined how variation in growth conditions with ... -
Coastal Communities and Employment Systems: Networks and communities in change
(Doctoral thesis; Doktorgradsavhandling, 2013-11-29)Gitt at norske fiskerier har gjennomgått store endringer side 1970-tallet, med utgangspunkt i Jentoft and Wadel (1984), utforsker dette arbeidet det moderne sysselsettingssystemet på kysten, hvordan det har endret seg og hva effekten har vært på kystsamfunn. Studien viser at relasjonene mellom fiskeriene og kystsamfunnene har endret seg. På 1970-talet var sysselsettingssystemet preget av et helhetlig ... -
The influence of snow cover and cold-season temperatures on growing-season processes Ecosystem respiration, nutrients, plant growth and phenology in the high Arctic
(Doctoral thesis; Doktorgradsavhandling, 2013-10-28)My thesis ‘The influence of snow cover and cold-season temperatures on growing-season processes’ is treating the ongoing trend and future projections of increasing snow cover thickness during the Arctic winter. More snow means two things: warmer soils during winter and later melt-out in spring. Both are important changes for Arctic terrestrial ecosystems, since warmer soils will increase CO2 emissions ... -
Improving the size selectivity of the inshore trawl fishery of Nha Trang city, Khanh Hoa province, Vietnam.
(Doctoral thesis; Doktorgradsavhandling, 2013-10-30)Trawling is an important fishing method used by the inshore fishermen of Nha Trang city, Khanh Hoa province, Vietnam. The inshore trawl fishery in Nha Trang city is known to have very low selectivity, which may not be a responsible fishing practice. The trawl nets of the fishery retain large numbers of juvenile individuals, which has negative effects on the marine resources. The goal of this thesis ... -
Predation on the demersal fish eggs of capelin Mallotus villosus and lumpsucker Cyclopterus lumpus in relation to recruitment
(Doctoral thesis; Doktorgradsavhandling, 2013-10-09)Mortality of demersal fish eggs caused by predation was investigated in this research project. The selected prey species were the Barents Sea capelin Mallotus villosus and lumpsucker Cyclopterus lumpus L, while the selected predators were capelin itself by cannibalistic behaviour and the invasive red king crab Paralithodes camtschaticus. Both capelin and lumpsucker are commercially important species ... -
The seasonal migratory behavior of sympatric anadromous Arctic charr and brown trout
(Doctoral thesis; Doktorgradsavhandling, 2013-09-20)This thesis used acoustic and archival telemetry to study fish migrations within and between freshwater and marine habitats. The main novel finding from this thesis work is that both Arctic charr and brown trout originating from rivers without access to lakes can be found in marine waters also during winter. The physical properties of the freshwater habitat may be the main factor controlling in which ... -
Hydrophysical characteristics of the northern Norwegian coast and fjords
(Doctoral thesis; Doktorgradsavhandling, 2013-09-12)It is evident that, both due to the large water volumes they hold and that they stretches from coast to inland, it is to be expected that the northern Norwegian fjords plays an important role in a climatic scientific context. Also generally northern regions are considered as a choke point in the regional as well as the global climate. In my opinion it is therefore surprising to find thorough physical ...


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