Blar i Department of Biological Sciences på tittel
Viser treff 168-187 av 2289
-
Bioactive Metabolites of Marine Origin Have Unusual Effects on Model Membrane Systems
(Journal article; Peer reviewed, 2020)Marine sponges and soft corals have yielded novel compounds with antineoplastic and antimicrobial activities. Their mechanisms of action are poorly understood, and in most cases, little relevant experimental evidence is ... -
Bioactivity of Biosilica Obtained From North Atlantic Deep-Sea Sponges
(Journal article; Peer reviewed, 2021-05-17)Demosponges are a well-known source of a plethora of bioactive compounds. In particular, they are able to form a skeleton by direct deposition of silica in a process catalyzed by silicatein. Herein, we isolated biosilicas ... -
Bioavailability of Macro and Micronutrients Across Global Topsoils: Main Drivers and Global Change Impacts
(Journal article; Peer reviewed, 2023)Understanding the chemical composition of our planet's crust was one of the biggest questions of the 20th century. More than 100 years later, we are still far from understanding the global patterns in the bioavailability ... -
bioCEED Survey 2015
(Research report, 2016-04)The bioCEED Survey 2015 is a baseline study of major tertiary-level biology education in Norway. The survey addresses themes such as learning in practice, transferable skills, motivation, laboratory and field learning, ... -
Biochemical and cellular analysis of Ogden syndrome reveals downstream Nt-acetylation defects
(Peer reviewed; Journal article, 2014-12-03)The X-linked lethal Ogden syndrome was the first reported human genetic disorder associated with a mutation in an N-terminal acetyltransferase (NAT) gene. The affected males harbor an Ser37Pro (S37P) mutation in the gene ... -
Biochemical and virological analysis of the 18-residue C-terminal tail of HIV-1 integrase
(Peer reviewed; Journal article, 2009-10-19)Background The 18 residue tail abutting the SH3 fold that comprises the heart of the C-terminal domain is the only part of HIV-1 integrase yet to be visualized by structural biology. To ascertain the role of the tail region ... -
Biodiversity and spatial ecology of arctic sponge grounds in the Nordic Seas
(Doctoral thesis, 2022-06-17)Sponge grounds are biogenic habitats formed by large structure-forming sponges in the deep-sea. They are biodiversity hotspots because they provide associated fauna a place of refuge, additional substratum, foraging areas, ... -
Biodiversity studies in Afrotropical moth flies (Diptera: Psychodidae)
(Master thesis, 2011-09-01)NB! The nomenclatural acts proposed herein are not validly published according to the International Code of Zoological Nomenclature and must therefore be considered mere suggestions rather than valid scientific names(ICZN, ... -
Biodiversity, environmental drivers, and sustainability of the global deep-sea sponge microbiome
(Journal article; Peer reviewed, 2022)In the deep ocean symbioses between microbes and invertebrates are emerging as key drivers of ecosystem health and services. We present a large-scale analysis of microbial diversity in deep-sea sponges (Porifera) from ... -
Bioeconomic consequences of fishing-induced evolution: a model predicts limited impact on net present value
(Peer reviewed; Journal article, 2015-04)Fishing reduces stock size and shifts demographics, and selective mortality may also lead to evolutionary changes. Previous studies suggest that traits may change evolutionarily because of fishing on decadal time scales. ... -
Bioenergetics modelling of growth processes in parasitized Eastern Baltic cod (Gadus morhua L.)
(Journal article; Peer reviewed, 2023)Changes in physiological processes can reveal how individuals respond to environmental stressors. It can be difficult to link physiological responses to changes in vital rates such as growth, reproduction and survival. ... -
Biogeochemical Timescales of Climate Change Onset and Recovery in the North Atlantic Interior Under Rapid Atmospheric CO2 Forcing
(Journal article; Peer reviewed, 2022)Anthropogenic climate change footprints in the ocean go beyond the mixed layer depth, with considerable impacts throughout mesopelagic and deep-ocean ecosystems. Yet, little is known about the timing of these environmental ... -
The biogeography of relative abundance of soil fungi versus bacteria in surface topsoil
(Journal article; Peer reviewed, 2022)Fungi and bacteria are the two dominant groups of soil microbial communities worldwide. By controlling the turnover of soil organic matter, these organisms directly regulate the cycling of carbon between the soil and the ... -
Biogeography of the fish pathogen Aeromonas salmonicida inferred by vapA genotyping
(Peer reviewed; Journal article, 2019-04-12)A recently described typing system based on sequence variation in the virulence array protein (vapA) gene, encoding the A-layer surface protein array, allows unambiguous subtyping of Aeromonas salmonicida. In the present ... -
Biological and ecological effects of Ligula intestinalis (Linnaeus, 1758) in a fish host Engraulicypris sardella (Gütter, 1868) from Tanzanian side of Lake Nyasa
(Doctoral thesis, 2020-10-23)The current thesis investigates the epidemiological, behavioral and evolutionary effects of the tapeworm Ligula intestinalis in the ‘Nyasa sardine’ (Engraulicypris sardella), an intermediate fish host, endemic to Lake ... -
Biological availability of different commercially available histidine products in feed for Atlantic salmon smolt
(Master thesis, 2021-06-01)A comparative nutritional study with post-smolt Atlantic salmon (Salmo salar L.) was performed over six weeks to investigate similarities between three suppliers of synthetic His at two dietary levels in a formulated ... -
Biological criteria for submergence of physostome (Atlantic salmon) and physoclist (Atlantic cod) fish in sea-cages
(Doctoral thesis, 2011-03-11)This thesis aims to describe behavioural responses and welfare parameters for the physostome Atlantic salmon and physoclist Atlantic cod when out of neutral buoyancy at different degrees and periods of time. The background ... -
The biological indicators and temporal spawning habits of wrasse (Family: Labridae) from Sunnhordland
(Master thesis, 2015-06-15)The salmonid industry in Norway has grown exponentially. The greatest cost and danger to the salmonid industry are ectoparasitic sea lice (Lepeophtheirus salmonis). Sea lice attach to salmon causing damage and increasing ... -
Biological transformation of Arctic dissolved organic matter in a NE Greenland fjord
(Peer reviewed; Journal article, 2018-12-07)Arctic waters are often enriched with terrestrial dissolved organic matter (DOM) characterized by having elevated visible wavelength fluorescence (commonly termed humic-like). Here, we have identified the sources of ... -
Biology and distribution patterns of some deepwater demersal fishes in the North Atlantic, with special reference to Antimora rostrata A study related to the project “Patterns and Processes of the ecosystems of the northern Mid-Atlantic”, MAR-ECO, 2001-2008
(Doctoral thesis, 2007-06-19)The study seeks to increase our knowledge on deepwater demersal fish assemblages and the biological adaptations of Antimora rostrata. This widespread deep-living demersal teleost is essentially used as an example species. ...