Recent additions

  • Mapping nature’s contribution to people: Opportunities and limitations of crowdsourced data to identify place-based values and conservation concerns 

    Muñoz, Lorena (Doctoral thesis; Doktorgradsavhandling, 2020-06-16)
    Nature provides people with a wide range of benefits, also known as nature’s contributions to people (NCP). The NCP framework evolved from the Ecosystem services (ES) concept as a response to the critiques and misconceptions associated with ES over the last years. Broadening ES valuations that have been dominated by economic valuations, the NCP framework emphasizes a pluralistic approach to valuation ...
  • Polar Cod in a Changing Arctic. Toxicity of crude oil on sensitive life history stages of a key Arctic species 

    Bender, Morgan Lizabeth (Doctoral thesis; Doktorgradsavhandling, 2020-06-12)
    Environmental change in the Arctic is occurring at an unprecedented rate with a loss of sea ice and warmer sea temperatures, simultaneously as increased human activity in the Arctic poses a risk of petroleum pollution. The potential future of a key Arctic forage fish, polar cod (<i>Boreogadus saida</i>), was investigated using laboratory simulations of oil spills during sensitive life-history stages: ...
  • The challenges of understanding the biogeography of commercially important crustacean species of the Southwestern Indian Ocean — Separating what we know from what we think we know. 

    Everett, Bernadine Irene (Doctoral thesis; Doktorgradsavhandling, 2020-05-25)
    Demersal trawl fisheries play an important role in providing income and protein to the people of the Southwestern Indian Ocean (SWIO). These fisheries are very destructive to the habitats in which they operate and have an impact on the associated biodiversity. Three crustacean species, knife prawn (<i>Haliporoides triarthrus</i>), African langoustine (<i>Metanephrops mozambicus</i>) and pink geryon ...
  • Atlantic salmon B cells- local and systemic responses to intraperitoneally administered salmonid alphavirus 

    Jenberie, Shiferaw (Doctoral thesis; Doktorgradsavhandling, 2020-03-04)
    Viral diseases represent one of the major threats for salmonid aquaculture. Disease prevention by vaccination relies on the induction of protective antibody responses mediated by B-cells. Upon binding to a specific antigen during vaccination or infection, the B-cells become activated and mature into antibody secreting cells (ASC). The antibodies protect against re-infection and prevent spreading of ...
  • Sedimentary ancient DNA: Exploring methods of ancient DNA analysis for different taxonomic groups 

    Lammers, Youri (Doctoral thesis; Doktorgradsavhandling, 2020-02-28)
    This thesis explores the potential of sedimentary ancient DNA (sedaDNA) from lakes as a tool for studying past communities. First it sets out to determine what taxa in the environment are most likely to be detected in lake sediments. For this, vegetation surveys were carried out around eleven different lakes in Norway and the taxa detected based on plant metabarcoding of the lake sediments were ...
  • Sjarkfiske og ressursforvaltning 

    Maurstad, Anita (Doctoral thesis; Doktorgradsavhandling, 1997-11-07)
    <p>Med utgangspunkt i feltarbeid fra fiskevær i Troms, samt intervjuer med flere fiskere i Troms og Finnmark, drøfter jeg det nordnorske sjarkfisket i lys av to motstridende teorier om ressurshøsting og -regulering. Den ene sier at små enheter er mer ressursvennlige enn store. I småskalaproduksjon finnes innebygde begrensninger i produksjonsmåten, dels fordi vi står ovenfor husholdsbasert produksjon ...
  • Bycatch Reduction in Eastern North Pacific Trawl Fisheries 

    Lomeli, Mark Joseph Max (Doctoral thesis; Doktorgradsavhandling, 2019-12-20)
    <p>This thesis provides an overview of recent selectivity studies conducted in eastern North Pacific trawl fisheries (e.g., West Coast groundfish bottom trawl fishery, Pacific hake [<i>Merluccius productus</i>] fishery, and ocean shrimp [<i>Pandalus jordani</i>] fishery). Collectively, these fisheries play a significant role in supporting fishing jobs, income, and coastal communities. However, bycatch ...
  • The speciation landscape of European whitefish in Northern Fennoscandia – the importance of deglaciation history, standing genetic variation and natural selection 

    Häkli, Katja (Doctoral thesis; Doktorgradsavhandling, 2019-12-10)
    <p>During the last deglaciation, one clade of European whitefish (<i>Coregonus lavaretus</i> L.) colonized the lakes in the three contemporary watercourses of northern Fennoscandia (Pasvik, Tana and Alta) and diverged thereafter in sympatry. This thesis investigates the interplay between evolutionary processes and standing genetic variation in shaping phenotypic and genetic divergence, and how ...
  • 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 ...
  • Isolation and Charecterization of New secondary metabolites from the Arctic Bryozoans Securiflustra securifrons and Dendrobeania murrayana 

    Michael Siranjeevi, Raja Priyanka Mary (Doctoral thesis; Doktorgradsavhandling, 2019-08-30)
    Marine bryozoans is a prolific source of structurally diverse bioactive secondary metabolites. However, the total number of natural products isolated from marine bryozoans is limited, The present study was focused on isolation and characterization of new compounds from Arctic marine bryozoans. The novel compounds were isolated by using two different approaches. For bioassay-guided isolation, fractions ...
  • Life history and distribution of the edible crab (Cancer pagurus) in Norway - Effect of temperature and other environmental parameters at high latitudes 

    Bakke, Snorre (Doctoral thesis; Doktorgradsavhandling, 2019-06-25)
    The overall aim of this study has been to provide information on how environmental conditions in Norway might affect the life history and distribution of the edible crab (<i>Cancer pagurus</i>). The results show that the size at which female crabs reach physiological maturity vary little, and just randomly, across northern Europe, and among latitudinally separated areas within Norway. Analysis of ...
  • Food traceability in theory and in practice 

    Olsen, Petter (Doctoral thesis; Doktorgradsavhandling, 2018-01-12)
    The thesis consists of five papers and a synopsis, and outlines theoretical concepts and practical considerations when implementing traceability in food supply chains. The term traceability and the components of a traceability system are discussed and defined, a method for describing and analysing material flow, information flow, and information loss is outlined, and numerous practical implementations ...
  • Migration in seabirds: seasonal structure in space and environment across species, populations and individuals 

    Merkel, Benjamin (Doctoral thesis; Doktorgradsavhandling, 2019-05-21)
    Identifying drivers of population trends in migratory species is difficult, as they can face many stressors while moving through different areas and environments during the annual cycle. Their population response to environmental change may in addition be affected by consistent differences in individual behaviour, which are widespread in free-living populations. An understanding of the structure of ...
  • Towards a framework to guide and facilitate interdisciplinary social-ecological system research in practice. 

    Weber, Charlotte Teresa (Doctoral thesis; Doktorgradsavhandling, 2019-06-27)
    Social-ecological systems (SES) consist of a social and an ecological system that are linked through a complex interplay of social and ecological processes. SES can be studied through SES research, which has become increasingly important because it is thought that it can potentially address and solve many societal challenges, such as climate change, resource scarcity, and habitat degradation. SES ...
  • Ecophysiological Responses of Sea Ice Algae and Phytoplankton to a Changing Arctic 

    Kvernvik, Ane Cecilie (Doctoral thesis; Doktorgradsavhandling, 2019-03-29)
    The ice-covered seas of the Arctic have two major types of primary producers; phytoplankton growing in open waters and sea ice algae growing within and on the underside of the sea ice. This thesis investigates the controlling role of light availability on Arctic pelagic and sympagic (i.e. ice-associated) algae, and how light-induced responses are modulated by NO3 and pCO2 levels. A combination of ...
  • 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. ...
  • Catch quality and size selectivity in the Barents Sea bottom trawl fishery: effect of codend design and trawling practice 

    Brinkhof, Jesse Vallevik (Doctoral thesis; Doktorgradsavhandling, 2019-02-15)
    This study focused on two important issues on the Barents Sea bottom trawl fishery for Northeast Arctic cod (Gadus morhua L.); catch quality (i.e., the quality of the fish caught) and size selectivity. The high abundance of cod encountered in recent years in the Barents Sea, leading to subsequent large annual quotas, has led to increased interest in improving the quality of fish caught by trawls. ...
  • Embracing stakeholder engagement in sustainability-oriented innovation: Internal capabilities and dynamics of open innovation in the Norwegian minerals industry 

    Ghassim, Babak (Doctoral thesis; Doktorgradsavhandling, 2019-02-08)
    The transition towards a sustainable minerals industry will rely on pursuing sustainability-oriented innovation (SOI), requiring continuous innovations in extraction and production processes, product offerings and the way the industry deals with its social responsibilities. Considering the breadth of SOI, mineral firms have no choice but to engage with and seek knowledge from multiple key external ...
  • Understanding researchers’ intention and habit regarding publishing in open access journals 

    Moksness, Lars (Doctoral thesis; Doktorgradsavhandling, 2018-12-13)
    Scholarly publishing is the vessel for the dissemination of research articles. Contemporary scholarly publishing is achieved by two main models, open access (OA) and non-open access (non-OA). OA refers to articles that are available at no cost to the end-user; however, authors may incur a fee for accepted manuscripts. Non-OA articles are available at a cost, either via subscriptions or via individual ...

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