Browsing Department of Biological Sciences by Title
Now showing items 1776-1795 of 2500
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Personlighet og læring blant biologistudenter: En kvantitativ pilotstudie av dyp prosessering og åpenhet for erfaring blant førsteårsstudenter i biologi
(Master thesis, 2019-12)Studenter har ulike måter å tilnærme seg læring på, og dette kan avhenge av for eksempel personlighetstrekk eller hvilken hensikt man har med læringsprosessen. En person som er åpen for nye erfaringer vil gjerne ha en ... -
Perspectives on intended learning outcomes in the field course and their assessment
(Master thesis, 2020-03-31)This thesis examines the assessment practices of biology courses at the University level that feature a fieldwork component (field course). Seven professors who teach and administrate such courses were interviewed about ... -
Pest science in Pasteur’s Quadrant
(Journal article; Peer reviewed, 2023)More than 25 years ago, Donald Stokes argued that we must move beyond the false dichotomy of basic or applied research and suggested that when considering a program of scientific research it is important to ask whether (i) ... -
Pesticides Induce Oxidative Stress in Zebrafish Embryo
(Master thesis, 2014-06-02)Aquaculture is an industry in rapid global growth. The increased demand and therefore production of aquacultural goods is bound to drain natural marine resources if fish are to continue being fed feeds based solely on ... -
The pH sensitivity of Aqp0 channels in tetraploid and diploid teleosts
(Peer reviewed; Journal article, 2015)Water homeostasis and the structural integrity of the vertebrate lens is partially mediated by AQP0 channels. Emerging evidence indicates that external pH may be involved in channel gating. Here we show that a tetraploid ... -
Phaeobacter gallaeciensis Reduces Vibrio anguillarum in Cultures of Microalgae and Rotifers, and Prevents Vibriosis in Cod Larvae
(Peer reviewed; Journal article, 2012-08-22)Phaeobacter gallaeciensis can antagonize fish-pathogenic bacteria in vitro, and the purpose of this study was to evaluate the organism as a probiont for marine fish larvae and their feed cultures. An in vivo mechanism of ... -
Phaeoviruses Present in Cultured and Natural Kelp Species, Saccharina latissima and Laminaria hyperborea (Phaeophyceae, Laminariales), in Norway
(Journal article; Peer reviewed, 2023)Phaeoviruses (Phycodnaviridae) are large icosahedral viruses in the phylum Nucleocytoviricota with dsDNA genomes ranging from 160 to 560 kb, infecting multicellular brown algae (Phaeophyceae). The phaeoviral host range is ... -
Phagocytosis and Respiratory Burst Activity in Lumpsucker (Cyclopterus lumpus L.) Leucocytes Analysed by Flow Cytometry
(Peer reviewed; Journal article, 2012-10-24)In the present study, we have isolated leucocytes from peripheral blood, head kidney and spleen from lumpsucker (Cyclopterus lumpus L.), and performed functional studies like phagocytosis and respiratory burst, as well as ... -
Pharmacokinetic Data Show That Oxolinic Acid and Flumequine Are Absorbed and Excreted Rapidly From Plasma and Tissues of Lumpfish
(Peer reviewed; Journal article, 2019-11-12)This study examined the uptake, tissue distribution and elimination of the antibacterial agents oxolinic acid and flumequine in lumpfish (Cyclopterus lumpus L.) by use of LC-MS/MS following a single oral administration of ... -
Pharmacokinetics of florfenicol in lumpfish (Cyclopterus lumpus L.) after a single oral administration
(Peer reviewed; Journal article, 2019)Farming of lumpfish for biological removal of sea lice from farmed Atlantic salmon has expanded rapidly in Europe and Canada over the last 5–6 years and the lumpfish has become an economically important species. There are, ... -
The Phe362Tyr mutation conveying resistance to organophosphates occurs in high frequencies in salmon lice collected from wild salmon and trout
(Peer reviewed; Journal article, 2017-10-27)The parasitic salmon louse, and its resistance to chemical delousing agents, represents one of the largest challenges to the salmon aquaculture industry. We genotyped lice sampled from wild salmon and sea trout throughout ... -
Phenology and Environmental Control of Phytoplankton Blooms in the Kong Håkon VII Hav in the Southern Ocean
(Journal article; Peer reviewed, 2021)Knowing the magnitude and timing of pelagic primary production is important for ecosystem and carbon sequestration studies, in addition to providing basic understanding of phytoplankton functioning. In this study we use ... -
Phenology and Spatial Dynamics of Cacopsylla melanoneura (Homoptera:Psyllidae) in Western Norway, an Insect Vector for Apple Proliferation
(Master thesis, 2017-06-21)In the last decade, the plant disease apple proliferation has caused problems for Norwegian fruit farmers, resulting in smaller and un-tasty apples, rendering them unsellable. The disease is caused by the phytoplasma ... -
Phenotypic and genetic characterization of Piscirickettsia salmonis from Chilean and Canadian salmonids
(Peer reviewed; Journal article, 2016-03-15)Background. The study presents the phenotypic and genetic characterization of selected P. salmonis isolates from Atlantic salmon and rainbow trout suffering from SRS (salmonid rickettsial septicemia) in Chile and in Canada. ... -
Phenotypic plasticity in Atlantic herring (Clupea harengus) juveniles reared at two different salinities
(Master thesis, 2015-06-01)A common garden experiment with juvenile herring (Clupea harengus L.) was carried out to investigate the influence of salinity on different phenotypic traits commonly used to investigate population structure in this species. ... -
Photo-enhanced toxicity of crude oil on early developmental stages of Atlantic cod (Gadus morhua)
(Journal article; Peer reviewed, 2022)Photo-enhanced toxicity of crude oil is produced by exposure to ultraviolet (UV) radiation. Atlantic cod (Gadus morhua) embryos were exposed to crude oil with and without UV radiation (290–400 nm) from 3 days post fertilization ... -
Photoreception and transcriptomic response to light during early development of a teleost with a life cycle tightly controlled by seasonal changes in photoperiod
(Journal article; Peer reviewed, 2022)Light cues vary along the axis of periodicity, intensity and spectrum and perception of light is dependent on the photoreceptive capacity encoded within the genome and the opsins expressed. A global approach was taken to ... -
A photovoice assessment for illuminating the role of inland fisheries to livelihoods and the local challenges experienced through the lens of fishers in a climate-driven lake of Malawi
(Journal article; Peer reviewed, 2022)Small-scale inland capture fisheries provide an important source of nutritious food, employment and income to millions of people in developing countries, particularly in rural environments where limited alternatives exist. ... -
Phylogenetic analyses of Candidatus Branchiomonas cysticola refine the taxonomic classification of Betaproteobacteria associated with epitheliocystis in fish
(Journal article; Peer reviewed, 2023)Candidatus Branchiomonas cysticola is recognized as the most prevalent bacterial agent causing epitheliocystis in Atlantic salmon (Salmo salar). Based on its partial 16S rRNA sequence, the bacterium has previously been ...