Olav Vadstein
Background and activities
I’m a professor in Microbial Ecology with general interest in aquatic ecosystems - both natural and un-natural (human created).
Areas of speciality/Fields of responsibility
- Professor in microbial ecology
- Leader of the research group "Analysis and Control of Microbial Systems"
- Teaches TBT4110 Microbiology, BT8101 Microbial Ecology,
- Involved in the projects MIRA, MicStaTech, MICRO-Feed, MicroMucus, EurOmega, DIACIL
I’m a professor in Microbial Ecology with general interest in aquatic ecosystems - both natural and un-natural (human created). Besides basic aspects, I’m interested in applied microbial ecology which can be placed under the heading Environmental Biotechnology.
Environmental Biotechnology is the application of biotechnology for solving environmental problems, both in the environment per se (e.g. bioremediation) or in man made ecosystems (e.g. sewage treatment plants). Environmental biotechnology search for technologies that are in accordance with ecological principals, based on a “join them” instead of a “beat them” strategy. Microbial Ecology, defined as scientific studies of interactions and basic principals that determine the distribution and abundance of microorganisms, is therefore a basic platform for analyses of problems and for development of technologies.
Ongoing activities are related to the following topics:
- Structure and functioning of natural planktonic ecosystems
- Host/microbe and Microbe/microbe interactions in fish
- Microbial management of marine fish larvae
- Chemical and microbial water quality in aquaculture
- Optimization of lipids in microalgae as a raw material for fish feed
- Biotechnological applications of microalgae in material science
Teaching
I'm involved in the teaching of the following subjects:
TBT4110 Microbiology
BT8101 Microbial Ecology
NA6001-4 Natural science for teachers
Scientific, academic and artistic work
A selection of recent journal publications, artistic productions, books, including book and report excerpts. See all publications in the database
Journal publications
- (2020) Effects of reduced organic matter loading through membrane filtration on the microbial community dynamics in recirculating aquaculture systems (RAS) with Atlantic salmon parr (Salmo salar). Aquaculture. vol. 524.
- (2020) Comparative transcriptomics reveals domestication‐associated features of Atlantic salmon lipid metabolism. Molecular Ecology.
- (2020) Nitrifying biofilms deprived of organic carbon show higher functional resilience to increases in carbon supply. Scientific Reports. vol. 10.
- (2020) Biofilms remember: Osmotic stress priming as a microbial management strategy for improving salinity acclimation in nitrifying biofilms. Water Research.
- (2019) Lipid and DHA-production in Aurantiochytrium sp. – Responses to nitrogen starvation and oxygen limitation revealed by analyses of production kinetics and global transcriptomes. Scientific Reports. vol. 9.
- (2019) Microorganisms in ballast water: Disinfection, community dynamics, and implications for management. Science of the Total Environment. vol. 657.
- (2019) The Significance of Mesophilic Aeromonas spp. in Minimally Processed Ready-to-Eat Seafood. Microorganisms. vol. 7 (91).
- (2019) Dietary fatty acid source has little effect on the development of the immune system in the pyloric caeca of Atlantic salmon fry. Scientific Reports. vol. 9 (27).
- (2019) Gut Microbiota of Migrating Wild Rabbit Fish (Siganus guttatus) Larvae Have Low Spatial and Temporal Variability. Microbial Ecology. vol. 79.
- (2019) Influence of rate of salinity increase on nitrifying biofilms. Journal of Cleaner Production. vol. 238.
- (2019) Loss of ALBINO3b insertase results in truncated light-harvesting antenna in diatoms. Plant Physiology. vol. 181 (3).
- (2019) Microbial dynamics in RAS water: Effects of adding acetate as a biodegradable carbon-source. Aquacultural Engineering. vol. 84.
- (2019) Unique photosynthetic electron transport tuning and excitation distribution in heterokont algae. PLOS ONE. vol. 14 (1).
- (2019) Effect of hydroxamate and catecholate siderophores on iron availability in the diatom Skeletonema costatum: Implications of siderophore degradation by associated bacteria. Marine Chemistry. vol. 209.
- (2019) Influence of nitrogen limitation on lipid accumulation and EPA and DHA content in four marine microalgae for possible use in aquafeed. Frontiers in Marine Science.
- (2018) Transcriptional regulation of lipid metabolism when salmon fry switches from endogenous to exogenous feeding. Aquaculture. vol. 503.
- (2018) Inactivation of marine heterotrophic bacteria in ballast water by an Electrochemical Advanced Oxidation Process. Water Research. vol. 140.
- (2018) Changes in microbial water quality in RAS following altered feed loading. Aquacultural Engineering. vol. 81.
- (2018) Effect of Siderophore on Iron Availability in a Diatom and a Dinoflagellate Species: Contrasting Response in Associated Bacteria. Frontiers in Marine Science. vol. 5 (118).
- (2018) Bacterial community composition responds to changes in copepod abundance and alters ecosystem function in an Arctic mesocosm study. The ISME Journal. vol. 12 (11).