Browsing Master theses by Title
Now showing items 21-40 of 294
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Applying fisheries data from the Norwegian reference fleet to study the demersal biodiversity and fisheries dynamics in two coastal areas
(Master thesis, 2019-06-05)It is well established that biodiversity varies throughout the year, over many years and between areas, and that biodiversity plays an important role in the overall health and resilience of an ecosystem. As fisheries ... -
Are migration timing estimates based on tagged Atlantic salmon smolts (Salmo salar) biased?
(Master thesis, 2020-06-20)Telemetry tags (e.g. PIT- or acoustic tags) are increasingly used in management to monitor the migration timing of Atlantic salmon smolts (Salmo salar). Recent findings, however, suggest that tagged fish consistently migrate ... -
Aromatic plants in nests of blue tits (Cyanistes caeruleus)
(Master thesis, 2024-11-20)Blue tits (Cyanistes caeruleus) build their nests out of moss and line them with insulating materials such as feathers, fur, and hair. In the southern areas of the species distribution range, blue tits often add aromatic ... -
Ascaridoid nematodes in mesopelagic fish (Cape Verde - Bay of Biscay areas): ecological and food safety perspectives
(Master thesis, 2021-04-05)The total amount of mesopelagic fish biomass is estimated to be between 1 and 20 billion tons globally. However, there is currently no industrial fishery for them. As the sustainability of harvesting pelagic fishes and the ... -
Avfallsvann som et alternativt dyrkingsmedium for mikroalger med et høyt innhold av EPA og DHA
(Master thesis, 2020-07-02)Mikroalger har mulighet til å danne flere ulike komponenter av kommersiell verdi. Av spesielt stor interesse er deres innhold av de flerumettede fettsyrene eikosapentaensyre (EPA) og dokosaheksaensyre (DHA). Disse fettsyrene ... -
Behavioral and depth preference for wrasse (Labridae) used as cleaner fish in salmon aquaculture
(Master thesis, 2023-06-02)Wild and farmed wrasse are used as cleaner fish in Norwegian salmon aquaculture as a biological remedy against the ectoparasite salmon lice. For wrasse to be a well-functioning cleaner fish, it is essential that the species ... -
Biologilærarar sine kunnskapar om arbeidsminnet
(Master thesis, 2022-06-01)Arbeidsminnet er ein funksjon i hjernen for å mentalt manipulere informasjon. Arbeidsminnet har avgrensa kapasitet og varigheit, noko som er sentralt i undervisningssamanheng fordi det påverkar elevar sine evner til å ... -
Brakkvannstoleranse hos ulike stammer av lakselus (Lepeophtheirus salmonis)
(Master thesis, 2024-06-03)Lakselus (Lepeophtheirus salmonis) er en marin ektoparasitt som lever på laksefisk. Den skaper sykdoms- og velferdsproblemer hos både vill og oppdrettet laksefisk i Norge, og påfører oppdrettsnæringen store økonomiske ... -
Breakdown of keratin-laden biomass waste by the thermophilic bacterium Fervidobacterium pennivorans strain T
(Master thesis, 2020-06-30)Developing a more sustainable agro-industry has become a necessity in light of the current environmental crisis. Biocatalysts are already adopted in many industrial applications and have quickly optimized, and in some cases ... -
Bumblebee communities in open and overgrown heathlands in Nordhordland UNESCO Biosphere, Vestland, Norway
(Master thesis, 2023-06-01)Insect pollinators such as bumblebees (Bombus spp.) play a vital role in the pollination of wild and cultivated plants and is therefore critical for ecosystem services and food security worldwide, especially in northern ... -
Caligus elongatus and Lepeophtheirus salmonis infestation on farmed and wild fish.
(Master thesis, 2022-02-07) -
Can catch data from small meshed gears in shallow waters be used to estimate recruitment indices of Norwegian coastal cod, Northeast Arctic saithe and pollack along the Norwegian coast?
(Master thesis, 2019-06-21)Shallow waters (<30 meters) are important nursery areas for coastal cod, saithe and pollack, before they recruit to their respective fisheries at an age around 3 years old. Still, no study provides information on fish ... -
Can environmental toxins increase parasite fitness? Ecotoxicological studies on the effects of microcystin on the host-parasite dynamics of Schistocephalus solidus
(Master thesis, 2020-08-21)Background: Eutrophication of aquatic biomes and exacerbated climate change effects are expected to result in a global increase in harmful cyanobacterial blooms. Cyanotoxins are detrimental to animal health, but how they ... -
Characteriazation of immunogenic surface proteins of Pasteurella altantica genomvar salmonicida
(Master thesis, 2024-06-03)Pasteurellosis caused by Pasteurella atlantica genomvar salmonicida has been an emerging disease in Norway since 2018, causing poor fish welfare and mortalities in the fish farming industry. The development of a commercial ... -
Characterization of the CEL-MODY mouse – A new disease model for chronic pancreatitis
(Master thesis, 2020-06-19) -
Characterization of the pregnane X receptor (PXR) from European hake (Merluccius merluccius): cloning, ligand activation, and bioinformatical analyses
(Master thesis, 2022-09-08)As a response to adverse environmental conditions, organisms have throughout evolution generated a collection of gene families and pathways providing protection and repair of damage caused by physical, chemical, and ...