Blar i tittel Doktorgradsavhandlinger (BFE-fak)

Viser treff 118-137 av 271

    • Hard-bottom benthic ecosystem in Kongsfjorden, a glacial fjord in the Arctic. 

      Voronkov, Andrey (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 ...

    • Health benefits of seafood consumption - with special focus on household preparations and bioactivity in animal models 

      Jensen, Ida-Johanne (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 ...

    • Honesty in economic experiments 

      Birkelund, Johan (Doctoral thesis; Doktorgradsavhandling, 2020-12-14)
      This thesis investigates preferences for honesty in economic experiments. Preferences for honesty have attained a fair amount of attention in the last couple of decades, from multiple areas within the social sciences, including economics. This thesis may serve as an introduction to the field. First, it provides an introduction to experiments in economics, before it dives into how economists conduct ...

    • How to tame a parasite - Developing biotechnological pipelines for gene function studies in Cuscuta 

      Lachner, Lena Anna-Maria (Doctoral thesis; Doktorgradsavhandling, 2022-05-20)
      <p><i>Cuscuta</i> is a genus of parasitic plants that form cross-species bridges and connect to the xylem and phloem of a wide variety of host plants. Because of their unique lifestyle, research into processes like the formation of connections in between plant cells and plant immunity would benefit from <i>Cuscuta</i> as a model system. However, a method to study gene functions in a <i>Cuscuta</i> ...

    • Human impact on highly mobile cetaceans: the use of biotelemetry data to inform ocean management 

      Mul, Evert (Doctoral thesis; Doktorgradsavhandling, 2020-12-03)
      <p>The human presence in the worlds’ oceans is increasing, in response to the growing demand for marine resources. This expansion of human activities will increase pressure on marine ecosystems and demands a responsible ocean management, to ensure the sustainable use of marine resources. Highly mobile marine top predators, such as cetaceans (whales, dolphins and porpoises) are exposed to a multitude ...

    • Hunter's behavioural responses to changes in bag size and willow grouse density : implications for management and interpretation of harvest data 

      Asmyhr, Lasse (Doctoral thesis; Doktorgradsavhandling, 2012-12-19)
      An important aspect of ecological research is to provide guidelines and tools to wildlife managers. The ecological feature of density dependence which shapes population responses to harvest are important for wildlife management, but monitoring practices and exploiter dynamics to the changing resources and management regimes should also be included. Bag records are often collected by wildlife managers ...

    • Hvordan nød og nye ideer skaper nye lover: Speilvendingen av sjøgrenseloven i 1992 

      Holand, Astrid Marie (Doctoral thesis; Doktorgradsavhandling, 2017-01-13)
      Avhandlingen viser hvordan lovverket gjenspeiler samfunnets skiftende behov og virkelighetsoppfatninger. Eksempelet som brukes for å illustrere dette, er en lovendringsprosess i fiskerisektoren. Frem til 1992 var det forbudt for utenlandske fiskere å levere fisk i norsk havn. En ressurskrise, torskekrisa i Nord-Norge på slutten av 1980-tallet, gjorde at det ble stilt spørsmål ved dette forbudet: ...

    • Hydrophysical characteristics of the northern Norwegian coast and fjords 

      Mankettikkara, Rahman (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 ...

    • The immune system of Atlantic cod : with emphasis on intestinal immunology 

      Inami, Makoto (Doctoral thesis; Doktorgradsavhandling, 2011-04-08)
      Torskeoppdrett er en lovende industri i Norge, men problemer med blant annet bakteriesykdommer gjør at næringen fortsatt har problemer med å etablere seg. For å få kontroll med sykdomsproblemene i næringen, er grunnleggende kunnskap om hvordan torsken beskytter seg mot infeksjoner nødvendig. Hensikten med dette doktorgradsarbeidet har vært å studere forsvarssystemet hos torsk, med et spesielt fokus ...

    • The impact of audit oversight in Norway: International collaboration and audit quality 

      Stenvold, Tine Degerstrøm (Doctoral thesis; Doktorgradsavhandling, 2017-09-22)
      The purpose of this thesis is to explore the nature of the audit oversight system and examples of national and international collaboration by means of a joint inspection process between the Public Company Accounting Oversight Board (PCAOB) of the United States and the Financial Supervisory Authority of Norway (FSA). In addition, the thesis will analyze literature regarding how auditors detect fraud ...

    • The impact of entrepreneurship education on students' career reflections 

      Longva, Kjersti Kjos (Doctoral thesis; Doktorgradsavhandling, 2019-11-25)
      The thesis aims to explore the impact entrepreneurship education (EE) has on students’ career reflections. EE has developed significantly in both scope and importance over recent decades and is now being taught worldwide at all education levels. Major stakeholders, such as educators, education institutions, funders, governments and policymakers, are investing heavily in terms of human and/or financial ...

    • Impacts of Vegetation and Temperature Changes on Carbon Cycling Microbial Communities in Arctic Wetlands 

      Bender, Kathrin Marina (Doctoral thesis; Doktorgradsavhandling, 2023-11-20)
      Climate change causes disturbances to soil environments. Such disturbances include shifts in vegetation composition and rising temperatures, which can impact the microbial communities involved in soil carbon cycling. In this thesis, my emphasis was centered on two main aspects: the effects of vegetation changes, caused by herbivory, and the effects of temperature changes on the soil organic matter ...

    • Implementation of ecosystem-based ocean management 

      Sander, Gunnar (Doctoral thesis; Doktorgradsavhandling, 2019-03-29)
      Ecosystem-based management (EBM) is a holistic approach for nature management that aims at achieving the good health and sustainable use of ecosystems. It is a complex and challenging concept: understanding ecosystems and human impacts upon them is complicated, there are demanding needs for collaboration and harmonisation of approaches and policies, and many conflicting interests must be balanced. ...

    • Improving the size selectivity of the inshore trawl fishery of Nha Trang city, Khanh Hoa province, Vietnam. 

      Nguyen, Hai Phong (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 ...

    • Indonesia: Innovation strategies and competitive forces to enter the European seafood market 

      Yusuf, Muhammad (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 ...

    • Induction of Atlantic salmon type I interferon and antagonism by infectious pancreatic necrosis virus 

      Lauksund, Reidunn Silje (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. ...

    • Indulging in Premium versus Luxury products: Seeking justification to avoid regrets 

      Lyons, Sarah Joy (Doctoral thesis; Doktorgradsavhandling, 2018-05-22)
      The demand for premium products is expanding across saturated markets, such as food and beverages. Premium products stand out on the store shelf because they signal higher quality and exclusivity with their fine product packaging, higher prices, and selective distribution. Despite the growing consumer demand for these products, and acknowledgments in the literature that the lines between luxury and ...

    • Industriell nyskapning : en undersøkelse av institusjonelle forutsetninger 

      Trondsen, Torbjørn (Doctoral thesis; Doktorgradsavhandling, 1985-05)

    • Infectious pancreatic necrosis virus (IPNV) - Persistent infections, virulence and antiviral defence 

      Julin, Kjersti (Doctoral thesis; Doktorgradsavhandling, 2015-02-06)
      Infeksiøs pankreas nekrose (IPN) er en fiskesykdom som rammer mange fiskeslag over store deler av verden. Det har store økonomiske konsekvenser for norsk lakseoppdrettsnæring. Infeksiøs pankreas nekrose var først kjent som en sykdom i yngel, men i de siste 10 til 20 årene har det vært et like stort problem i post-smolt. Antall utbrudd varierer fra år til år, der 2009 ble registrert som et år med ...

    • The influence of prey distribution on marine top predator movements 

      Vogel, Emma (Doctoral thesis; Doktorgradsavhandling, 2023-12-08)
      Predation is an ecological process that relies on spatial and temporal co-occurrence of predators and their prey. In marine ecosystems, killer and humpback whales are considered sentinels of ecosystem health, given their critical roles as top predators in shaping marine food webs and their responsiveness to ecosystem changes. As they are seldom influenced by natural threats, they are model species ...