Browsing Department of Biological Sciences by Title
Now showing items 168-187 of 2235
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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. ... -
Biology students at work: using blogs to investigate personal epistemologies
(Peer reviewed; Journal article, 2018-12-24)This paper reports an investigation of biology students’ discussion of knowing in work placements, as accounted in blogs. Twenty-two blogs, containing 78 individual entries, written in conjunction with a work placement ... -
Biomass of Scyphozoan Jellyfish, and Its Spatial Association with 0-Group Fish in the Barents Sea
(Peer reviewed; Journal article, 2012-03-22)An 0-group fish survey is conducted annually in the Barents Sea in order to estimate fish population abundance. Data on jellyfish by-catch have been recorded since 1980, although this dataset has never been analysed. In ... -
Bioorthogonal Non-canonical Amino Acid Tagging Combined With Flow Cytometry for Determination of Activity in Aquatic Microorganisms
(Journal article; Peer reviewed, 2020)In this study, we have combined bioorthogonal non-canonical amino acid tagging (BONCAT) and flow cytometry (FCM) analysis, and we demonstrate the applicability of the method for marine prokaryotes. Enumeration of active ... -
Bioprospecting North Atlantic microalgae with fast growth and high polyunsaturated fatty acid (PUFA) content for microalgae-based technologies
(Peer reviewed; Journal article, 2017-09)Microalgae are considered to be an important and sustainable alternative to fish oil as a source for the polyunsaturated fatty acids (PUFAs) eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Due to their health ... -
The biosynthesis of phospholipids is linked to the cell cycle in a model eukaryote
(Journal article; Peer reviewed, 2021)The structural challenges faced by eukaryotic cells through the cell cycle are key for understanding cell viability and proliferation. We tested the hypothesis that the biosynthesis of structural lipids is linked to the ... -
Biotic rescaling reveals importance of species interactions for variation in biodiversity responses to climate change
(Journal article; Peer reviewed, 2020)Generality in understanding biodiversity responses to climate change has been hampered by substantial variation in the rates and even directions of response to a given change in climate. We propose that such context ... -
Biotyping reveals loss of motility in two distinct Yersinia ruckeri lineages exclusive to Norwegian aquaculture
(Journal article; Peer reviewed, 2022)Non-motile strains of Yersinia ruckeri, known as Y. ruckeri biotype 2, now dominate amongst clinical isolates retrieved from rainbow trout internationally. Due to an acute increase in the number of yersiniosis cases in ... -
Bivalve mollusks as tools for monitoring antibiotic resistance in the marine environment
(Doctoral thesis, 2020-04-29)Antibiotic resistance (AR) is a major global health concern, especially in clinical and veterinary settings. Environmental niches, including the aquatic environment, serve as a source of and/or a dissemination route for ...