Blar i Department of Biological Sciences på tittel
Viser treff 2376-2395 av 2447
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Variable Number of Tandem Repeats (VNTR) analysis of Flavobacterium psychrophilum from salmonids in Chile and Norway
(Peer reviewed; Journal article, 2015-07-14)Background Flavobacterium psychrophilum causes serious fish diseases such RTFS and BCWD, affecting the aquaculture industry worldwide. Commercial vaccines are not available and control of the disease depends on the use of ... -
Variation in leaf functional traits through the early development of coastal heathland plants
(Master thesis, 2018-12)Seedling recruitment provides a mechanism for re-establishment after fire and is thus key in the life cycle of managed heathland plant species. However, the seedling phase is a vulnerable stage of the plant’s life cycle, ... -
Vegetasjonsendringer i myr og lynghei på Runde i perioden 1928 til 2010
(Master thesis, 2011-06-16)Effektivisering og reformer i landbruket etter andre verdenskrig har ført til at den tradisjonelle bruken av mange kulturlandskap har blitt sterkt redusert. Runde, en øy på kysten av Møre og Romsdal, er et godt eksempel ... -
Vegetation History in a Coastal West Norwegian Mountain: Illuminated by Palynological Analysis and Megafossils
(Master thesis, 2024-06-17) -
Vegetation- memory effects and their association with vegetation resilience in global drylands
(Journal article, 2022)Vegetation memory describes the effect of antecedent environmental and ecological conditions on the present ecosystem state and has been proposed as an important proxy for vegetation resilience. In particular, strong ... -
Vekststudie av Pasteurella sp. isolert fra oppdrettet rognkjeks, Cyclopterus lumpus
(Master thesis, 2016-06-01)Oppdrett av rognkjeks, Cyclopterus lumpus, er en raskt voksende sektor innen akvakultur i Norge. Bruksområdet for kultivert rognkjeks er begrenset til biologisk bekjemping av lakselus ved oppdrett av salmonider. Rognkjeks ... -
Velocity field of the western entrance to the Barents Sea
(Peer reviewed; Journal article, 2004-03-13)By the use of 4-year long records from moored current meters between 71°30′N and 73°30′N of the western entrance to the Barents Sea, the velocity field of the Atlantic inflow is examined. The mean velocity field shows the ... -
The vertebrate Aqp14 water channel is a neuropeptide-regulated polytransporter
(Peer reviewed; Journal article, 2019-12-11)Water channels (aquaporins) were originally discovered in mammals with fourteen subfamilies now identified (AQP0-13). Here we show that a functional Aqp14 subfamily phylogenetically related to AQP4-type channels exists in ... -
Vertebrate Vitellogenin Gene Duplication in Relation to the ‘‘3R Hypothesis’’: Correlation to the Pelagic Egg and the Oceanic Radiation of Teleosts
(Peer reviewed; Journal article, 2007)The spiny ray-finned teleost fishes (Acanthomorpha) are the most successful group of vertebrates in terms of species diversity. Their meteoric radiation and speciation in the oceans during the late Cretaceous and Eocene ... -
Vertical distribution and migration of mesopelagic scatterers in four north Atlantic basins
(Journal article; Peer reviewed, 2020)We studied vertical distribution and diel vertical migration (DVM) behaviour of mesopelagic acoustic scattering layers in relation to environmental conditions in the Norwegian Sea, the Iceland Sea, the Irminger Sea, and ... -
Vertical distribution and trophic interactions of zooplankton and fish in Masfjorden, Norway
(Peer reviewed; Journal article, 1990)The distribution, biomass, and predator-prey relationships of the pelagic assemblage in Masfjorden, western Norway, was studied in January 1989. The pelagic biomass was dominated by particulate organic matter. Biomasses ... -
Vertical distribution of epibenthic megafauna of a large seamount west of Cape Verde islands (tropical North Atlantic)
(Journal article; Peer reviewed, 2024)Seamounts are thought to function as hotspots of megafauna diversity due to their topology and environmental characteristics. However, assessments of megafauna communities inhabiting seamounts, including diversity and ... -
Vertical distribution of mesopelagic organisms under changing oxygen conditions: Insights from western Norwegian fjords
(Doctoral thesis, 2025-04-25)Hver dag migrerer utallige små fisker og virvelløse dyr flere hundre meter mellom overflaten og mesopelagiske dyp (200-1000 m) i takt med døgnsyklusen. Disse mesopelagiske dyrene kan danne tette lag, også kjent som ekkolag, ... -
Vertical salmon lice behaviour as a response to environmental conditions and its influence on regional dispersion in a fjord system
(Peer reviewed; Journal article, 2014)The salmon louse Lepeophtheirus salmonis is a major parasite of salmon, and is able to travel between farms during its pelagic phases. We investigated the spatial dispersion of L. salmonis planktonic stages in the ... -
Vgll3 and the Hippo pathway are regulated in Sertoli cells upon entry and during puberty in Atlantic salmon testis
(Peer reviewed; Journal article, 2018-01-30)Vgll3 is linked to age at maturity in Atlantic salmon (Salmo salar). However, the molecular mechanisms involving Vgll3 in controlling timing of puberty as well as relevant tissue and cell types are currently unknown. Vgll3 ... -
The vgll3 Locus Controls Age at Maturity in Wild and Domesticated Atlantic Salmon(Salmo salar L.) Males
(Peer reviewed; Journal article, 2015-11-09)Wild and domesticated Atlantic salmon males display large variation for sea age at sexual maturation, which varies between 1–5 years. Previous studies have uncovered a genetic predisposition for variation of age at maturity ... -
Vgll3 regulates the timing of puberty in farmed Atlantic salmon, but it does not explain family discordance in male maturation following different smolt production regimes
(Journal article; Peer reviewed, 2024)Atlantic salmon (Salmo salar) farming is moving towards extended periods of land-based production to minimise the time at sea, but this increases the risk of unwanted male sexual maturation. As the timing of puberty is ... -
Vibrio splendidus virulence in experimentaly challenged cod yolk sac larvae (Gadus morhua)
(Master thesis, 2009-06-02)Farming of Atlantic cod Gadus morhua, has become an important part of Norwegian aquaculture, but disease problems are frequent. Vibriosis caused by Vibrio splendidus has caused problems in aquaculture to early life stages ... -
Vibrio tapetis from wrasse used for ectoparasite bio-control in salmon farming: Phylogenetic analysis and serotyping
(Peer reviewed; Journal article, 2017-08-09)So-called ‘cleaner fish’, including various wrasse (Labridae) species, have become increasingly popular in Norwegian salmon farming in recent years for biocontrol of the salmon louse Lepeophtheirus salmonis. Cleaner fish ... -
Viral encephalopathy and retinopathy in Atlantic salmon Salmo salar after intraperitoneal challenge with a nodavirus from Atlantic halibut Hippoglossus hippoglossus
(Peer reviewed; Journal article, 2005)Homogenate of tissue from juveniles of Atlantic halibut Hippoglossus hippoglossus suffering from viral encephalopathy and retinopathy (VER) was used to challenge smolt of Atlantic salmon Salmo salar with an initial average ...