Blar i tittel Doktorgradsavhandlinger (BFE-fak)

Viser treff 108-127 av 271

    • Game-based learning for marine resource management: Reflections on using games in the Bachelor of Science in Fisheries and Aquaculture 

      Weines, Jørn (Doctoral thesis; Doktorgradsavhandling, 2021-09-03)
      This dissertation is a case-study of the development and introduction of game-based learning in the Bachelor of Science in Fisheries and Aquaculture at the Norwegian College of Fishery Science. The use of games for learning has long traditions, but is currently receiving increased attention from scholars in light of the increased focus on active learning in higher education institutions. The ...

    • Gear modifications for bycatch reduction in the Bay of Biscay demersal trawl fishery 

      Cuende de Francisco, Elsa (Doctoral thesis; Doktorgradsavhandling, 2022-12-20)
      <p>Bottom trawl fisheries have great social and economic importance for coastal communities in the Basque Country. However, the activity of the demersal trawl fishery in the Bay of Biscay, which includes the coastline of the Basque country, can be compromised due to its multispecies nature, high proportion of unwanted species in the catch, and the increasingly strict legislation implemented aiming ...

    • Genetic complexity in the marine environment: Population genomics of saithe (Pollachius virens), Greenland halibut (Reinhardtius hippoglossoides), beaked and golden redfish (Sebastes mentella and S. norvegicus) in the North Atlantic 

      Saha, Atal (Doctoral thesis; Doktorgradsavhandling, 2016-05-04)
      In this work, I investigated genetic complexity in four commercially exploited species from the North Atlantic: saithe (Pollachius virens L.), Greenland halibut (Reinhardtius hippoglossoides), and beaked and golden redfish (Sebastes mentella and S. norvegicus). The results were used 1) to assess the consistency between current management units and units identified by results based on genetic data ...

    • Genome-edited salmon: a sustainable and socially acceptable solution to aquaculture? 

      Blix, Torill Pauline Bakkelund (Doctoral thesis; Doktorgradsavhandling, 2023-03-24)
      The Norwegian Atlantic salmon farming industry is halted by challenges related to environmental impact and fish welfare. Some of the issues have been suggested solved by the use of novel genome editing technologies, such as CRISPR, which allows for targeted mutations and speeding up fish breeding. For successful introduction, applications of the technology need to be socially acceptable and contribute ...

    • Governance and power in the planning of Scotland's seas 

      Smith, Glen (Doctoral thesis; Doktorgradsavhandling, 2018-11-21)
      Marine spatial planning (MSP) is rapidly becoming the dominant approach to managing human interactions with marine environments. As this happens we are making more attempts to understand how it operates and how it might be improved. This study focuses on the governance of complex marine environments through MSP in Scotland. It focuses specifically on transparency and participation in MSP, and the ...

    • The governance of Sami reindeer husbandry in Norway : institutional challenges of co-management 

      Ulvevadet, Birgitte (Doctoral thesis; Doktorgradsavhandling, 2012-06-15)
      Denne avhandlingen er basert på en kvalitativ studie fra forvaltningen av reindriften i Norge. Målet med forvaltningen av reindriften i Norge er å oppnå en økologisk, økonomisk, og kulturell bærekraftig reindrift. Disse målene har blitt forsøkt oppnådd gjennom et governance system fordi myndighetene har erkjent at det å inkludere ressursbrukere i forvaltningsmessige beslutningsprosesser skaper en ...

    • Grandparents Matter – Multigenerational transmission of health and health behaviors 

      Sari, Emre (Doctoral thesis; Doktorgradsavhandling, 2023-11-07)
      Health is an essential component of human capital, and health inequalities are a major issue. While substantial research on the intergenerational transmission of health and health behaviors has been conducted, the questions whether and how grandparents’ health affects grandchildren remain underinvestigated. This thesis aims to better understand health inequality mechanisms by analyzing multigenerational ...

    • Granularity and its importance for traceability in seafood supply chains 

      Karlsen, Kine Mari (Doctoral thesis; Doktorgradsavhandling, 2011-08-26)
      The purpose of this thesis was to study granularity and its importance for traceability in seafood supply chains. The following hypothesis was applied in this thesis: The implementation of traceability of seafood is affected by the granularity level of the traceable units. Three sub-tasks were carried out to test the hypothesis: 1) identify critical traceability points (CTPs) of seafood products, ...

    • Green sea urchin (Strongylocentrotus droebachiensis,Müller) in aquaculture: the effects of environmental factors on gonad growth. 

      Siikavuopio, Sten Ivar (Doctoral thesis; Doktorgradsavhandling, 2009-10-30)
      Ved hjelp av eksperimentelle studier har en undersøkt effekten av ulike miljøfaktorer på gonadevekst hos Drøbak-kråkebolle i oppdrett. Dette inkluderer effekten av temperatur, størrelse, sesong, individtetthet og forskjellige vannkvalitetsparametre (O2, CO2, nitritt, ammoniakk) og håndtering på overlevelse, gonadevekst, fôrinntak og fôrutnyttelse. Optimal temperatur for gonadevekst hos voksne ...

    • Gut metagenomics in relation to diet and methanogenesis in arctic herbivores 

      Salgado, Alejandro Flores (Doctoral thesis; Doktorgradsavhandling, 2017-06-01)
      Enteric methane (CH4) from gut microbial fermentation of complex organic polymers in ruminants comprises an important source of the anthropogenic CH4 emissions and may also represent a significant loss of metabolic energy to the host animal depending on diet. CH4 is produced by specialized microbes called methanogens. Extensive research exists on enteric CH4 production and methanogens in domestic ...

    • 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 ...