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Dietary fatty acids and their ratio: impact on Atlantic salmon health, mineral status and intestinal lipid transport
(Doctoral thesis, 2022-06-30)The rapid growth of the aquaculture industry and the sharp decline of capture fisheries necessitates finding alternative sources for fish oil and fish meal in aquafeeds. However, the inclusion of VOs in aquafeed alters the ... -
Dietary histidine supplementation prevents cataract development in adult Atlantic salmon, Salmo salar L., in seawater
(Peer reviewed; Journal article, 2010-11)The aim of the present study was to investigate the cataract preventive effect of dietary histidine regimes in adult Atlantic salmon (Salmo salar L.) in seawater, both through manipulating the dietary histidine level and ... -
Dietary inclusion of peptides and the effect on the regional expression of the oligo-peptide transporter PepT1 (Slc15a1) in the intestine of juvenile Atlantic cod (Gadus morhua)
(Master thesis, 2008)PepT1 (Peptide Transporter 1, SLC15A1) is a proton-coupled peptide transporter responsible for uptake of short peptides and peptide-like drugs from the intestinal lumen into enterocytes. A PepT1-type transporter has recently ... -
Dietary lipid modulation of intestinal serotonin in Ballan wrasse- Labrus bergylta – In vitro analyses
(Master thesis, 2018-09-04)Salmon lice infections by Lepeophtheirus salmonis represent one of the biggest challenges for the salmon industry. Intensive use of chemical delousing methods has led to resistance in lice against several of the chemicals, ... -
Dietary methylmercury alters the proteome in Atlantic salmon (Salmo salar) kidney
(Peer reviewed; Journal article, 2011-12-19)Background: Methylmercury (MeHg) is an environmental contaminant most known for its severe neurotoxic effects. Although accumulation of MeHg tends to be several folds higher in kidney compared to other tissues, studies on ... -
Dietary selenium required to achieve body homeostasis and attenuate pro-inflammatory responses in Atlantic salmon post-smolt exceeds the present EU legal limit
(Journal article; Peer reviewed, 2020)Selenium (Se) supplementation either as inorganic or organic form was evaluated in Atlantic salmon post-smolt in vivo and in vitro. The basal diet was formulated to be low in fish meal and contain 0.24 mg Se kg−1; six other ... -
Dietary zinc, selenium and water temperature during early seawater phase influences the development of vertebral deformities and cataract in adult Atlantic salmon
(Journal article; Peer reviewed, 2023)The impact of dietary trace minerals (TM; zinc and selenium) and water temperature during early seawater phase on the development of vertebral deformities and cataracts in adult Atlantic salmon was studied. Two experimental ... -
Diets of gadoid fish in Arctic waters of Svalbard fjords during the polar night
(Journal article; Peer reviewed, 2023)As the climate warms, boreal fish species are expected to expand into the Arctic domain. Though water temperature is an important factor driving expansion of aquatic species, other variables may play a critical role in ... -
Differences in growth and survival between cod Gadus morhua and herring Clupea harengus early stages co-reared at variable prey concentrations
(Peer reviewed; Journal article, 2015-09-28)It was hypothesized that the survival and growth strategies of herring Clupea harengus, displaying a flexible reproductive activity, are adapted to coping with longer periods of prey deprivation (i.e. more variable prey ... -
Differences in metabolic rate between two Atlantic cod (Gadus morhua) populations estimated with carbon isotopic composition in otoliths
(Journal article; Peer reviewed, 2021)The isotopic composition of inorganic carbon in otoliths (δ13Coto) can be a useful tracer of metabolic rates and a method to study ecophysiology in wild fish. We evaluated environmental and physiological sources of δ13Coto ... -
Differences in soil arthropod communities along a high altitude gradient at Shergyla Mountain, Tibet, China
(Peer reviewed; Journal article, 2005)This is the first time that the soil arthropod communitycomposition along a high-altitude gradient (3,837, 4,105, and5,050 m a.s.l.) has been investigated in eastern Tibet, China.Five soil samples of 50 cm super(2) were ... -
Different delivery routes of double stranded RNA to obtain RNA Interference in the salmon louse (Lepeophtheirus salmonis)
(Master thesis, 2016-05-31)Lepeophtheirus salmonis (Krøyer 1837), commonly known as the salmon louse, is an ectoparasitic copepod specific to wild and farmed salmonids (Boxaspen, 2006), and probably the most serious problem that the Norwegian ... -
Different production protocols influence smolt physiology and growth in seawater for Atlantic salmon (Salmo salar)
(Master thesis, 2022-06-01) -
Different sets of traits explain abundance and distribution patterns of European plants at different spatial scales
(Journal article; Peer reviewed, 2021)Aim Plant functional traits summarize the main variability in plant form and function across taxa and biomes. We assess whether geographic range size, climatic niche size, and local abundance of plants can be predicted ... -
Differential toxicity of bioorthogonal non-canonical amino acids (BONCAT) in Escherichia coli
(Journal article; Peer reviewed, 2023)Single-cell methods allow studying the activity of single bacterial cells, potentially shedding light on regulatory mechanisms involved in services like biochemical cycling. Bioorthogonal non-canonical amino acid tagging ... -
Digestibility and functionality of black soldier fly larvae meal in Atlantic salmon feeds
(Doctoral thesis, 2024-02-09)Fordøyeligheten og funksjonaliteten til delvis avfettet mel av svarte soldatfluelarver (BSFL) er studert i fôret til atlantisk laks (Salmo salar). Insektmel er et lovende alternativ til konvensjonelle fôringredienser på ... -
The digestion time for salmon louse (Lepeophtheirus salmonis) in lumpfish (Cyclopterus lumpus)
(Journal article; Peer reviewed, 2024)Atlantic salmon aquaculture employs lumpfish as a control method to combat ectoparasites, given their unique cleaning behaviour. There are multiple studies which estimate the average number of salmon lice in the stomach ... -
Digestive protease activities, growth and feed utilisation in Atlantic salmon (Salmo salar L.)
(Doctoral thesis, 2006-03-03)The specific activities of trypsin and chymotrypsin in the pyloric caeca were investigated in individually labeled Atlantic salmon (Salmo salar L.). Photoperiod (natural or 24 h) and feed protein quality (two levels of ... -
Diminishing returns on labour in the global marine food system
(Journal article; Peer reviewed, 2023)Technological advances over the past century have greatly reduced the proportion of human labour required to produce the world’s food. On land, these advances have continually increased yields, feeding a growing human ... -
Direct photon measurements in pp and Pb-Pb collisions with the ALICE experiment
(Peer reviewed; Journal article, 2017-11)Direct photon production in heavy-ion collisions provides a valuable set of observables to study the hot QCD medium. The direct photons are produced at different stages of the collision and escape the medium unaffected. ...