Browsing Department of Biological Sciences by Title
Now showing items 656-675 of 2216
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En analyse av læreverk i biologi sett i lys av Læreplanverket for Kunnskapsløftet
(Master thesis, 2015-01-30)Den kompetanseorientere læreplanen, LK06, og lærebokens sentrale rolle i undervisningen gav utspring til denne masteroppgaven. Her presenteres resultatene av en analyse utført på to læreverk i biologi, med fokus på hvordan ... -
En tverrfaglig tilnærming til ulike perspektiver på verdier og verdisetting av to kulturlandskaper på Osterøy
(Master thesis, 2016-10-03)Biodiversitet blir brukt som et numerisk mål på verdisetting av natur under vurdering om bevaring av ulike naturtyper og kulturlandskap i naturvernforvaltningen i Norge. I forskning er biodiversitet et begrep med mange ... -
Endometrial cancer cells exhibit high expression of p110β and its selective inhibition induces variable responses on PI3K signaling, cell survival and proliferation
(Peer reviewed; Journal article, 2017-12-16)PTEN loss and constitutive activation of the class I phosphoinositide 3-kinase (PI3K) pathway are key drivers of endometrial tumorigenesis. In some cancer types, PTEN-deficient tumors are reliant on class I PI3K p110β ... -
Endoplasmic reticulum stress as a key mechanism in stunted growth of seawater rainbow trout (Oncorhynchus mykiss)
(Journal article; Peer reviewed, 2021)Background Rainbow trout (Oncorhynchus mykiss) is a salmonid species with a complex life-history. Wild populations are naturally divided into freshwater residents and sea-run migrants. Migrants undergo an energy-demanding ... -
Endozoicomonadaceae symbiont in gills of Acesta clam encodes genes for essential nutrients and polysaccharide degradation
(Journal article; Peer reviewed, 2021)Gammaproteobacteria from the family Endozoicomonadaceae have emerged as widespread associates of dense marine animal communities. Their abundance in coral reefs involves symbiotic relationships and possibly host nutrition. ... -
Energy content of krill and amphipods in the Barents Sea from summer to winter: variation across species and size
(Journal article; Peer reviewed, 2023)Arctic zooplankton develop large energy reserves, as an adaptation to strong seasonality, making them valuable prey items. We quantified the energy content (kJ g−1 dry weight) of abundant krill (arcto-boreal, Thysanoessa ... -
Energy dilution with α-cellulose in diets for Atlantic cod (Gadus morhua L.) juveniles - effects on growth, feed intake, liver size and digestibility of nutrients
(Master thesis, 2009-05-03)Atlantic cod (Gadus morhua) is known to grow large livers, especially farmed cod, but commercially, muscle growth is preferred, due to profits. Therefore, main focus in this feeding trial was to achieve lowered liver size, ... -
Engaging students in SDG 14 by placing them at the centre of their own learning: SDG214 at the University of Bergen as an example
(Chapter, 2021)Educating students on the sustainable development goals (SDGs) calls for teaching where students are at the centre of their own learning. Sustainability questions are ‘wicked problems’, where no single, correct answer ... -
Enhancing EPA Content in an Arctic Diatom: A Factorial Design Study to Evaluate Interactive Effects of Growth Factors
(Peer reviewed; Journal article, 2018-04-17)Microalgae with a high content of the omega-3 polyunsaturated fatty acids (PUFAs), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA) are of great demand for microalgae-based technologies. An Arctic strain of the ... -
Enhancing pollination is more effective than increased conventional agriculture inputs for improving watermelon yields
(Journal article; Peer reviewed, 2020)Agricultural practices to improve yields in small‐scale farms in Africa usually focus on improving growing conditions for the crops by applying fertilizers, irrigation, and/or pesticides. This may, however, have limited ... -
An enriched environment promotes shelter-seeking behaviour and survival of hatchery-produced juvenile European lobster (Homarus gammarus)
(Peer reviewed; Journal article, 2016-08-25)The high loss of newly released hatchery-reared European lobster (Homarus gammarus) juveniles for stock enhancement is believed to be the result of maladaptive anti-predator behaviour connected to deprived stimuli in the ... -
Enrichment of rotifers (Brachionus plicatilis) with taurine-filled liposomes and taurine-uptake in Ballan wrasse (Labrus bergylta) larvae
(Master thesis, 2018-05-30)Taurine has been reported as a conditionally essential nutrient for several marine fish. Ballan wrasse (Labrus bergylta) has become an important species for the Atlantic salmon (Salmo salar) industry in Norway. Rotifers ... -
Enrichment promotes learning in fish
(Peer reviewed; Journal article, 2010-08-18)Captive birds and mammals reared in enriched rearing environments have been shown to behave more flexibly compared to animals reared in impoverished or plain environments. Recent evidence has shown that this is also true ... -
Entry into puberty is reflected in changes in hormone production but not in testicular receptor expression in Atlantic salmon (Salmo salar)
(Peer reviewed; Journal article, 2019-06-21)Background Puberty in male Atlantic salmon in aquaculture can start as early as after the first winter in seawater, stunts growth and entails welfare problems due to the maturation-associated loss of osmoregulation capacity ... -
Environmental and biological requirements of post-smolt Atlantic salmon (Salmo salar L.) in closed-containment aquaculture systems
(Doctoral thesis, 2017-06-22)Production of Atlantic salmon (Salmo salar L.), exceeds 2 million tonnes globally, and accounts for 90% of the salmon on the market. Presently, the predominant production of post-smolt Atlantic salmon occurs in open sea ... -
Environmental change and atmospheric contamination on Svalbard: sediment chronology
(Peer reviewed; Journal article, 2004)Sediment cores collected from eight lakes along the western coast of Svalbard as part of a project investigating atmospheric pollution and environmental change in Arctic regions were dated radiometrically using natural ... -
Environmental Change at Deep-Sea Sponge Habitats Over the Last Half Century: A Model Hindcast Study for the Age of Anthropogenic Climate Change
(Journal article; Peer reviewed, 2022-03-24)Deep-sea sponges inhabit multiple areas of the deep North Atlantic at depths below 250 m. Living in the deep ocean, where environmental properties below the permanent thermocline generally change slowly, they may not easily ... -
Environmental contaminants activate human and polar bear (Ursus maritimus) pregnane X receptors (PXR, NR1I2) differently
(Peer reviewed; Journal article, 2015-04-01)Background Many persistent organic pollutants (POPs) accumulate readily in polar bears because of their position as apex predators in Arctic food webs. The pregnane X receptor (PXR, formally NR1I2, here proposed to be named ... -
Environmental contaminants modulate the transcriptional activity of polar bear (Ursus maritimus) and human peroxisome proliferator-activated receptor alpha (PPARA)
(Peer reviewed; Journal article, 2019-05-06)Peroxisome proliferator-activated receptor alfa (PPARA/NR1C1) is a ligand activated nuclear receptor that is a key regulator of lipid metabolism in tissues with high fatty acid catabolism such as the liver. Here, we cloned ...