Olav Vadstein

Om

Jeg er pensjonert professor i Mikrobiell økologi, med generell interesse i akvatiske økosystemer - både naturlige og unaturlige (menneskeskapte).

Fagfelt/Arbeidsområde

Professor emeritus i mikrobiell økologi

I’m a professor emeritus 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

Publikasjoner

2025

Vadstein, Olav. (2025) Hva skjer hvis mikrobene forsvinner? - adressa.no.
Kronikk
Vadstein, Olav. (2025) Den oversette biologien.
Kronikk
Khadka, Sujan; Vadstein, Olav; Bakke, Ingrid; Olsen, Yngvar; Attramadal, Kari Johanne Kihle. (2025) Bacteria in land-based larval rearing systems: sources of bacteria and their quantitative and qualitative influence on the microbiota of rearing water and larvae. Aquaculture
Vitenskapelig artikkel
Mathisen, Amalie Johanne Horn; Canny, Sol Gomez de la Torre; Gundersen, Madeleine S.; Østensen, Mari-Ann; Olsen, Yngvar; Vadstein, Olav. (2025) Community assembly of gut microbiomes in yolk sac fry of Atlantic salmon: host genetics, environmental microbiomes, and ecological processes. FEMS Microbiology Ecology
Vitenskapelig artikkel

2024

Bandara, Kasun Anuruddha; Politis, Sebastian Nikitas; Sørensen, Sune Riis; Benini, Elisa; Tomkiewicz, Jonna; Vadstein, Olav. (2024) Effect of Food Amounts on Larval Performance, Bacteriome and Molecular Immunologic Development during First-Feeding Culture of European Eel. Microorganisms
Vitenskapelig artikkel
Bandara, Kasun Anuruddha; Politis, Sebastian N.; Sganga, Daniela Eliana; Sørensen, Sune Riis; Koumpiadis, Paraskevas; Tomkiewicz, Jonna. (2024) Effects of European eel egg and larval stocking density on rearing water, offspring bacteriome and derived immune response. Aquaculture
Vitenskapelig artikkel
Navarro-Guillén, Carmen; Lorentsen, Eirik Degré; Perera, Erick; Yúfera, Manuel; Bakke, Ingrid; Vadstein, Olav. (2024) The role of feeding as synchronizer of gut microbiota dynamics and its potential contribution to protein digestion in greater amberjack (Seriola dumerili). Frontiers in Marine Science
Vitenskapelig artikkel
Volpe, Charlotte; Nymark, Marianne; Andersen, Tom; Winge, Per; Lavaud, Johann; Vadstein, Olav. (2024) Skeletonema marinoi ecotypes show specific habitat-related responses to fluctuating light supporting high potential for growth under photobioreactor light regime. New Phytologist
Vitenskapelig artikkel
Vadstein, Olav; Bakken, Lars. (2024) Den glemte klimaaktøren.
Kronikk
Vadstein, Olav. (2024) Bruk av antibiotika i Norge må dramatisk ned, men lite skjer. Klassekampen
Leserinnlegg
Vadstein, Olav. (2024) Gonoré og antibiotika. Klassekampen
Leserinnlegg
Gundersen, Madeleine S.; Vadstein, Olav. (2024) An exploration of the impact of phylogenetic tree structure on NTI and βNTI estimates of community assembly. Scientific Reports
Vitenskapelig artikkel

2023

Vadstein, Olav. (2023) Antibiotikabruk og villfarelser.
Kronikk
Canny, Sol Gomez de la Torre; Nordgård, Catherine Taylor; Mathisen, Amalie Johanne Horn; Lorentsen, Eirik Degré; Vadstein, Olav; Bakke, Ingrid. (2023) A novel gnotobiotic experimental system for Atlantic salmon ( Salmo salar L.) reveals a microbial influence on mucosal barrier function and adipose tissue accumulation during the yolk sac stage. Frontiers in Cellular and Infection Microbiology
Vitenskapelig artikkel
Gundersen, Madeleine S.; Fiedler, Alexander Willi; Bakke, Ingrid; Vadstein, Olav. (2023) The impact of phage treatment on bacterial community structure is minor compared to antibiotics. Scientific Reports
Vitenskapelig artikkel
Bandara, Kasun Anuruddha; Benini, Elisa; Politis, Sebastian N.; Conceição, Luis E.C.; Santos, André; Sørensen, Sune Riis. (2023) Exploring bacterial community composition and immune gene expression of European eel larvae (Anguilla anguilla) in relation to first-feeding diets. PLOS ONE
Vitenskapelig artikkel
Vadstein, Olav. (2023) Antibiotika og myter. Aftenposten (morgenutg. : trykt utg.)
Leserinnlegg
Vadstein, Olav. (2023) Antibiotikabruk i Norge: Bør vi primært skryte?. Aftenposten (morgenutg. : trykt utg.)
Leserinnlegg
Fiedler, Alexander Willi; Gundersen, Madeleine S.; Vo, Toan Phuc; Almaas, Eivind; Vadstein, Olav; Bakke, Ingrid. (2023) Phage therapy minimally affects the water microbiota in an Atlantic salmon (Salmo salar) rearing system while still preventing infection. Scientific Reports
Vitenskapelig artikkel
Navarro-Guillén, Carmen; Lorentsen, Eirik Degré; Perera, Erick; Yúfera, Manuel; Vadstein, Olav. (2023) Feeding and water temperature modulate the potential activity of gut microbiota in greater amberjack juveniles (Seriola dumerili). Frontiers in Marine Science
Vitenskapelig artikkel
Fiedler, Alexander Willi; Drågen, Martha Kristine Rindarøy; Lorentsen, Eirik Degré; Vadstein, Olav; Bakke, Ingrid. (2023) The stability and composition of the gut and skin microbiota of Atlantic salmon throughout the yolk sac stage. Frontiers in Microbiology
Vitenskapelig artikkel
Vadstein, Olav. (2023) Dør vi uten oljen?. Klassekampen
Leserinnlegg
Vadstein, Olav. (2023) Ja, virkeligheten er plagsom. Klassekampen
Leserinnlegg

2022

DeSchryver, Peter; Vadstein, Olav; Defoirdt, Tom; Sorgeloos, Patrick. (2022) Microbial management: a key concept for sustainable shrimp culture.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Vestrum, Ragnhild Inderberg; Forberg, Torunn; Luef, Birgit; Bakke, Ingrid; Winge, Per; Olsen, Yngvar. (2022) Commensal and opportunistic bacteria present in the microbiota in atlantic cod (Gadus morhua) larvae differentially alter the hosts’ innate immune responses. Microorganisms
Vitenskapelig artikkel
Mathivannan, Causia; Brembu, Tore; Vadstein, Olav. (2022) Functional studies of Group II silicanins in the diatom Thalassiosira pseudonana cell wall biomineralization. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Jafari, Leila; Gregersen, Kim Joao de Jesus; Vadstein, Olav; Pedersen, Lars-Flemming. (2022) Removal of microparticles and bacterial inactivation in freshwater RAS by use of foam fractionation, H2O2 and NaCl. Aquaculture Research
Vitenskapelig artikkel
Brembu, Tore; Vadstein, Olav; Sværen, Thea. (2022) Creation of Gene Knockouts for Silicic Acid Transporter-Associated Kinases and Study of Alternative Selection Markers in the Diatom Thalassiosira pseudonana. NTNU, Institutt for bioteknologi og matvitenskap NTNU, Institutt for bioteknologi og matvitenskap
Mastergradsoppgave
Obrestad, Kathrine; Einum, Sigurd; Vadstein, Olav. (2022) Stochastic variation in gut bacterial community affects reproductive rates in the water flea Daphnia magna. FEMS Microbiology Ecology
Vitenskapelig artikkel
Bugten, Anette Voll; Attramadal, Kari; Fossmark, Ragnhild Olsen; Rosten, Trond Waldemar; Vadstein, Olav; Bakke, Ingrid. (2022) Changes in rearing water microbiomes in RAS induced by membrane filtration alters the hindgut microbiomes of Atlantic salmon (Salmo salar) parr. Aquaculture
Vitenskapelig artikkel
Gundersen, Madeleine S.; Vadstein, Olav; Schryver, Peter De; Attramadal, Kari. (2022) Aquaculture rearing systems induce no legacy effects in Atlantic cod larvae or their rearing water bacterial communities. Scientific Reports
Vitenskapelig artikkel
Navada, Sharada; Vadstein, Olav. (2022) Salinity Acclimation Strategies in Nitrifying Bioreactors. Frontiers in Marine Science
Vitenskapelig artikkel
Rong, Ragnhild Lind; Gagnat, Maren Ranheim; Attramadal, Yngve; Vadstein, Olav. (2022) Microbial water quality of the copepod Acartia tonsa in cultures for use as live feed. Aquaculture
Vitenskapelig artikkel
Thingstad, Tron Frede; Øvreås, Lise; Vadstein, Olav. (2022) Mechanisms Generating Dichotomies in the Life Strategies of Heterotrophic Marine Prokaryotes. Diversity
Vitenskapelig oversiktsartikkel/review

2021

Dahle, Stine Veronica Wiborg; Attramadal, Kari; Vadstein, Olav; Hestdahl, Hans Ivar; Bakke, Ingrid. (2021) Microbial community dynamics in a commercial RAS for production of Atlantic salmon fry (Salmo salar). Aquaculture
Vitenskapelig artikkel
Mathew, K Avarachen; Ardelan, Murat Van; Gonzalez, Susana Villa; Vadstein, Olav; Vezhapparambu, Veena Sajith; Leiknes, Øystein. (2021) Temporal dynamics of carbon sequestration in coastal North Atlantic fjord system as seen through dissolved organic matter characterisation. Science of the Total Environment
Vitenskapelig artikkel
Gundersen, Madeleine S.; Vadstein, Olav; Bakke, Ingrid; Andersen, Tom; Morelan, Ian. (2021) The effect of periodic disturbances and carrying capacity on the significance of selection and drift in complex bacterial communities. ISME Communications
Vitenskapelig artikkel
Navada, Sharada; Gaumet, Frederic; Tveten, Ann-Kristin; Kolarevic, Jelena; Vadstein, Olav. (2021) Seeding as a start-up strategy for improving the acclimation of freshwater nitrifying bioreactors to salinity stress. Aquaculture
Vitenskapelig artikkel
Nikouli, Eleni; Kormas, Konstantinos Ar.; Jin, Yang; Olsen, Yngvar; Bakke, Ingrid; Vadstein, Olav. (2021) Dietary Lipid Effects on Gut Microbiota of First Feeding Atlantic Salmon (Salmo salar L.). Frontiers in Marine Science
Vitenskapelig artikkel
Attramadal, Kari J.K.; Øien, John Vegard; Kristensen, Elisabeth; Evjemo, Jan Ove; Kjørsvik, Elin; Vadstein, Olav. (2021) UV treatment in RAS influences the rearing water microbiota and reduces the survival of European lobster larvae (Homarus gammarus). Aquacultural Engineering
Vitenskapelig artikkel
Palandre, Hugues; Brembu, Tore; Vadstein, Olav. (2021) Development of Molecular Tools in the Diatom Coscinodiscus wailesii. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Fossmark, Ragnhild Olsen; Attramadal, Kari; Kristian, Nordøy; Østerhus, Stein Wold; Vadstein, Olav. (2021) A comparison of two seawater adaptation strategies for Atlantic salmon post-smolt (Salmo salar) grown in recirculating aquaculture systems (RAS): Nitrification, water and gut microbiota, and performance of fish. Aquaculture
Vitenskapelig artikkel
Skisland, Maren Moen; Vadstein, Olav; Brembu, Tore. (2021) Functional studies of two silicon transporter-associated kinases in the diatom Thalassiosira pseudonana. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Copetti, Fabrini; Gregoracci, Gustavo Bueno; Vadstein, Olav; Schveitzer, Rodrigo. (2021) Management of biofloc concentrations as an ecological strategy for microbial control in intensive shrimp culture. Aquaculture
Vitenskapelig artikkel
Harris, Ingrid Eskerud; Vadstein, Olav; Brembu, Tore. (2021) Functional studies of a family of ankyrin repeat-containing proteins in the diatom Thalassiosira pseudonana hypothesized to be involved in frustule morphogenesis. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Sjevelås, Christine; Vadstein, Olav; Brembu, Tore. (2021) Morphological changes in the frustule of Thalassiosira pseudonana by genetic manipulation and cultivation conditions. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Bentzen, Kristin Leonore Lillebo; Vadstein, Olav; Brembu, Tore. (2021) Functional studies of two genes encoding closely related group II silicanins in the diatom Thalassiosira pseudonana. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Volpe, Charlotte; Vadstein, Olav; Andersen, Geir; Andersen, Tom. (2021) Nanocosm: A well plate photobioreactor for environmental and biotechnological studies. Lab on a Chip
Vitenskapelig artikkel
Silva, Blanca Magdalena Gonzalez; Jonassen, Kjell Rune; Bakke, Ingrid; Østgaard, Kjetill; Vadstein, Olav. (2021) Understanding structure/function relationships in nitrifying microbial communities after cross-transfer between freshwater and seawater. Scientific Reports
Vitenskapelig artikkel

2020

Vadstein, Olav; Rong, Ragnhild Lind. (2020) Microbial Quality of the copepod Acartia tonsa for use as live feed for marine larvae. NTNU NTNU
Mastergradsoppgave
Navada, Sharada; Sebastianpillai, Marianna; Kolarevic, Jelena; Fossmark, Ragnhild Olsen; Tveten, Ann-Kristin; Gaumet, Frederic. (2020) A salty start: Brackish water start-up as a microbial management strategy for nitrifying bioreactors with variable salinity. Science of the Total Environment
Vitenskapelig artikkel
Navada, Sharada; Knutsen, Maja F.; Bakke, Ingrid; Vadstein, Olav. (2020) Nitrifying biofilms deprived of organic carbon show higher functional resilience to increases in carbon supply. Scientific Reports
Vitenskapelig artikkel
Fossmark, Ragnhild Olsen; Vadstein, Olav; Rosten, Trond Waldemar; Bakke, Ingrid; Koseto, Deni; Bugten, Anette Voll. (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
Vitenskapelig artikkel
Vadstein, Olav. (2020) Dårlig svar om korrelasjon. Klassekampen
Leserinnlegg
Vadstein, Olav. (2020) Samvariasjon gir ingen årsakssammenheng. Klassekampen
Leserinnlegg
Obrestad, Kathrine; Vadstein, Olav; Einum, Sigurd. (2020) The effect of gut microbiota on fitness in Daphnia magna. NTNU NTNU
Mastergradsoppgave
Årdal, Vilde; Vadstein, Olav; Brembu, Tore. (2020) Cell Wall Biomineralization in the Centric Diatom Thalassiosira pseudonana: Investigation of the Putative Role of Silicanin Tp23191 and the Impact of Microfilaments and Microtubules. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Jafari, Leila; Vadstein, Olav. (2020) The Effects of Protein Skimmer, Hydrogen Peroxide and Salinity on Water Quality in RAS. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Gresseth, Marita; Vadstein, Olav; Brembu, Tore. (2020) Investigating fluorescence in transformants expressing a silicanin-mNeonGreen fusion protein, and the effect of cytoskeleton inhibitors on frustule biosynthesis in the diatom Thalassiosira pseudonana. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Bakke, Ingrid; Canny, Sol Gomez de la Torre; Nordgård, Catherine Taylor; Vadstein, Olav; Dunker, Karen; Sletmoen, Marit. (2020) Bakterier på lakseskinn – har de noen funksjon?. Norsk Fiskeoppdrett
Populærvitenskapelig artikkel
Bakke, Ingrid; Canny, Sol Gomez de la Torre; Nordgård, Catherine Taylor; Vadstein, Olav; Dunker, Karen; Sletmoen, Marit. (2020) Bakterier på lakseskinn – har de noen funksjon?. Kyst.no
Populærvitenskapelig artikkel
Navada, Sharada; Vadstein, Olav; Gaumet, Frederic; Tveten, Ann-Kristin; Spanu, Claudia; Mikkelsen, Øyvind. (2020) Biofilms remember: Osmotic stress priming as a microbial management strategy for improving salinity acclimation in nitrifying biofilms. Water Research
Vitenskapelig artikkel
Jin, Yang; Olsen, Rolf Erik; Harvey, Thomas Nelson; Østensen, Mari-Ann; Li, Keshuai; Santi, Nina. (2020) Comparative transcriptomics reveals domestication‐associated features of Atlantic salmon lipid metabolism. Molecular Ecology
Vitenskapelig artikkel
Vestrum, Ragnhild Inderberg; Attramadal, Kari; Vadstein, Olav; Gundersen, Madeleine Stenshorne; Bakke, Ingrid. (2020) Bacterial community assembly in Atlantic cod larvae (Gadus morhua): Contributions of ecological processes and metacommunity structure. FEMS Microbiology Ecology
Vitenskapelig artikkel

2019

Sanchez, Nicolas; Peterson, Claire Katja; Gonzalez, Susana Villa; Vadstein, Olav; Olsen, Yngvar; Ardelan, Murat Van. (2019) Effect of hydroxamate and catecholate siderophores on iron availability in the diatom Skeletonema costatum: Implications of siderophore degradation by associated bacteria. Marine Chemistry
Vitenskapelig artikkel
Le, Duy; Nguyen, Phuoc; Nguyen, Dung; Dierckens, Kristof; Boon, Nico; Lacoere, Tim. (2019) Gut Microbiota of Migrating Wild Rabbit Fish (Siganus guttatus) Larvae Have Low Spatial and Temporal Variability. Microbial Ecology
Vitenskapelig artikkel
Navada, Sharada; Vadstein, Olav; Tveten, Ann-Kristin; Verstege, Gerhardus C.; Terjesen, Bendik Fyhn; Mota, Vasco C.. (2019) Influence of rate of salinity increase on nitrifying biofilms. Journal of Cleaner Production
Vitenskapelig artikkel
Bakke, Ingrid; Attramadal, Kari; Vestrum, Ragnhild Inderberg; Vadstein, Olav. (2019) Controlling Factors for Community Assembly in Developing Cod Larvae (Gadus morhua).
Faglig kapittel
Heggeset, Tonje Marita Bjerkan; Ertesvåg, Helga; Liu, Bin; Ellingsen, Trond Erling; Vadstein, Olav; Aasen, Inga Marie. (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
Vitenskapelig artikkel
Hess-Erga, Ole-Kristian; Moreno-Andrés, Javier; Enger, Øivind; Vadstein, Olav. (2019) Microorganisms in ballast water: Disinfection, community dynamics, and implications for management. Science of the Total Environment
Vitenskapelig oversiktsartikkel/review
Nymark, Marianne; Volpe, Charlotte; Hafskjold, Marthe Caroline Grønbech; Kirst, Henning; Serif, Manuel; Vadstein, Olav. (2019) Loss of ALBINO3b insertase results in truncated light-harvesting antenna in diatoms. Plant Physiology
Vitenskapelig artikkel
Hoel, Sunniva; Vadstein, Olav; Jakobsen, Anita Nordeng. (2019) The Significance of Mesophilic Aeromonas spp. in Minimally Processed Ready-to-Eat Seafood. Microorganisms
Vitenskapelig oversiktsartikkel/review
Røkke, Gunvor Bjerkelund; Melø, Thor Bernt; Mühlroth, Alice; Vadstein, Olav; Bones, Atle M.; Hohmann-Marriott, Martin Frank. (2019) Unique photosynthetic electron transport tuning and excitation distribution in heterokont algae. PLOS ONE
Vitenskapelig artikkel
Rojas-Tirado, Paula; Pedersen, Per Bovbjerg; Vadstein, Olav; Pedersen, Lars-Flemming. (2019) Microbial dynamics in RAS water: Effects of adding acetate as a biodegradable carbon-source. Aquacultural Engineering
Vitenskapelig artikkel
Jalili, Mahsa; Jin, Yang; Bones, Atle M.; Olsen, Yngvar; Vadstein, Olav; Østensen, Mari-Ann. (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
Vitenskapelig artikkel
Wang, Xinxin; Fosse, Hilde Karoline; Li, Keshuai; Chauton, Matilde Skogen; Vadstein, Olav; Reitan, Kjell Inge. (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
Vitenskapelig artikkel

2018

Hoel, Sunniva; Vadstein, Olav; Jakobsen, Anita Nordeng. (2018) Growth of mesophilic Aeromonas salmonicida in an experimental model of nigiri sushi during cold storage. International journal of food microbiology
Vitenskapelig artikkel
Moreno-Andrés, Javier; Ambauen, Noemi; Vadstein, Olav; Halle, Cynthia; Acevedo-Merino, Asunción; Nebot, Enrique. (2018) Inactivation of marine heterotrophic bacteria in ballast water by an Electrochemical Advanced Oxidation Process. Water Research
Vitenskapelig artikkel
Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.. (2018) Rearing water treatment induces microbial selection influencing the microbiota and pathogen associated transcripts of Cod (Gadus morhua) Larvae. Frontiers in Microbiology
Vitenskapelig artikkel
Attramadal, Kari; Bakke, Ingrid; Vadstein, Olav. (2018) Mikrobiell kontroll i lukkede og landbaserte anlegg. Norsk Fiskeoppdrett
Populærvitenskapelig artikkel
Tsagaraki, Tatiana Margo; Pree, Bernadette; Leiknes, Øystein; Larsen, Aud; Bratbak, Gunnar; Øvreås, Lise. (2018) Bacterial community composition responds to changes in copepod abundance and alters ecosystem function in an Arctic mesocosm study. The ISME Journal
Vitenskapelig artikkel
Vadstein, Olav; Attramadal, Kari; Bakke, Ingrid; Forberg, Torunn; Olsen, Yngvar; Verdegem, Marc. (2018) Managing the microbial community of marine fish larvae: a holistic perspective for larviculture. Frontiers in Microbiology
Vitenskapelig oversiktsartikkel/review
Sanchez, Nicolas; Brown, Eunice Nana Adjoa; Olsen, Yngvar; Vadstein, Olav; Iriarte, Jose Luis; Gonzalez, Humberto E.. (2018) Effect of Siderophore on Iron Availability in a Diatom and a Dinoflagellate Species: Contrasting Response in Associated Bacteria. Frontiers in Marine Science
Vitenskapelig artikkel
Jin, Yang; Olsen, Rolf Erik; Østensen, Mari-Ann; Gillard, Gareth Benjamin; Li, Keshuai; Harvey, Thomas Nelson. (2018) Transcriptional regulation of lipid metabolism when salmon fry switches from endogenous to exogenous feeding. Aquaculture
Vitenskapelig artikkel
Vadstein, Olav; Attramadal, Kari; Bakke, Ingrid; Olsen, Yngvar. (2018) K-selection as microbial community management strategy: A method for improved viability of larvae in aquaculture. Frontiers in Microbiology
Vitenskapelig oversiktsartikkel/review
Vestrum, Ragnhild Inderberg; Luef, Birgit; Forberg, Torunn; Bakke, Ingrid; Vadstein, Olav. (2018) Investigating fish larvae-microbe interactions in the 21st century: Old questions studied with new tools.
Faglig kapittel
Rojas-Tirado, Paula; Pedersen, Per Bovbjerg; Vadstein, Olav; Pedersen, Lars-Flemming. (2018) Changes in microbial water quality in RAS following altered feed loading. Aquacultural Engineering
Vitenskapelig artikkel

2017

Nordgård, Anna Synnøve Røstad; Bergland, Wenche Hennie; Vadstein, Olav; Mironov, Vladimir; Bakke, Rune; Østgaard, Kjetill. (2017) Anaerobic digestion of pig manure supernatant at high ammonia concentrations characterized by high abundances of Methanosaeta and non-euryarchaeotal archaea. Scientific Reports
Vitenskapelig artikkel
Silva, Blanca Magdalena Gonzalez; Rønning, Are J.; Andreassen, Ingrid Krogrud; Bakke, Ingrid; Cervantes, Francisco J.; Østgaard, Kjetill. (2017) Changes in the microbial community of an anammox consortium during adaptation to marine conditions revealed by 454 pyrosequencing. Applied Microbiology and Biotechnology
Vitenskapelig artikkel
Hoel, Sunniva; Vadstein, Olav; Jakobsen, Anita Nordeng. (2017) Species distribution and prevalence of putative virulence factors in mesophilic Aeromonas spp. isolated from fresh retail sushi. Frontiers in Microbiology
Vitenskapelig artikkel
Trinh, Thi Truc Ly; Bakke, Ingrid; Vadstein, Olav. (2017) Correlations of age and growth rate with microbiota composition in Atlantic cod (Gadus morhua) larvae. Scientific Reports
Vitenskapelig artikkel
Brembu, Tore; Chauton, Matilde Skogen; Winge, Per; Bones, Atle M.; Vadstein, Olav. (2017) Dynamic responses to silicon in Thalasiossira pseudonana - Identification, characterisation and classification of signature genes and their corresponding protein motifs. Scientific Reports
Vitenskapelig artikkel
Hoel, Sunniva; Jakobsen, Anita Nordeng; Vadstein, Olav. (2017) Effects of storage temperature on bacterial growth rates and community structure in fresh retail sushi. Journal of Applied Microbiology
Vitenskapelig artikkel
Mühlroth, Alice; Winge, Per; Assimi, Aimen El; Jouhet, Juliette; Maréchal, Eric; Hohmann-Marriott, Martin Frank. (2017) Mechanisms of phosphorus acquisition and lipid class remodeling under P limitation in a Marine Microalga. Plant Physiology
Vitenskapelig artikkel

2016

Leiknes, Øystein; Etter, Siv Anina; Tokle, Nils E.; Bergvik, Maria; Vadstein, Olav; Olsen, Yngvar. (2016) The effect of essential fatty acids for the somatic growth in nauplii of Calanus finmarchicus. Frontiers in Marine Science
Vitenskapelig artikkel
Forberg, Torunn; Sjulstad, Eli Bjørnø; Bakke, Ingrid; Olsen, Yngvar; Hagiwara, Atsushi; Sakakura, Yoshitaka. (2016) Correlation between microbiota and growth in Mangrove Killifish (Kryptolebias marmoratus) and Atlantic cod (Gadus morhua). Scientific Reports
Vitenskapelig artikkel
Silva, Blanca Magdalena Gonzalez; Jonassen, Kjell Rune; Bakke, Ingrid; Østgaard, Kjetill; Vadstein, Olav. (2016) Nitrification at different salinities: Biofilm community composition and physiological plasticity. Water Research
Vitenskapelig artikkel
Attramadal, Kari; Minniti, Giusi; Øie, Gunvor; Kjørsvik, Elin; Østensen, Mari-Ann; Bakke, Ingrid. (2016) Microbial maturation of intake water at different carrying capacities affects microbial control in rearing tanks for marine fish larvae. Aquaculture
Vitenskapelig artikkel
Romann, Julien Clement; Chauton, Mathilde Skogen; Hanetho, Sidsel Meli; Vebner, Marius Juelsrud; Heldal, Mikal; Thaulow, Christian. (2016) Diatom frustules as a biomaterial: effects of chemical treatment on organic material removal and mechanical properties in cleaned frustules from two Coscinodiscus species. Journal of porous materials
Vitenskapelig artikkel
Liu, Bin; Ertesvåg, Helga; Aasen, Inga Marie; Vadstein, Olav; Brautaset, Trygve; Heggeset, Tonje Marita Bjerkan. (2016) Draft genome sequence of the docosahexaenoic acid producing thraustochytrid Aurantiochytrium sp. T66. Genomics Data
Vitenskapelig artikkel
Aasen, Inga Marie; Ertesvåg, Helga; Heggeset, Tonje Marita Bjerkan; Liu, Bin; Brautaset, Trygve; Vadstein, Olav. (2016) Thraustochytrids as production organisms for docosahexaenoic acid (DHA), squalene, and carotenoids. Applied Microbiology and Biotechnology
Vitenskapelig oversiktsartikkel/review
Bakke, Ingrid; Åm, Ann Louise; Kolarevic, Jelena; Ytrestøyl, Trine; Vadstein, Olav; Attramadal, Kari Johanne Kihle. (2016) Microbial community dynamics in semi-commercial RAS for production of Atlantic salmon post-smolts at different salinities. Aquacultural Engineering
Vitenskapelig artikkel

2015

Mühlroth, Alice; Assimi, AE; Røkke, Gunvor; Despres, Julie; Winge, Per; Bruheim, Per. (2015) Transcriptional regulation of lipid accumulation in phosphorus limited Nannochloropsis oceanica. European journal of phycology
Sammendrag/Abstract
Nordgård, Anna Synnøve Røstad; Bergland, Wenche Hennie; Bakke, Rune; Vadstein, Olav; Østgaard, Kjetill; Bakke, Ingrid. (2015) Microbial community dynamics and biogas production from manure fractions in sludge bed anaerobic digestion. Journal of Applied Microbiology
Vitenskapelig artikkel
Romann, Julien Clement; Valmalette, Jean-Christophe; Chauton, Matilde Skogen; Tranell, Gabriella; Einarsrud, Mari-Ann; Vadstein, Olav. (2015) Wavelength and orientation dependent capture of light by diatom frustule nanostructures. Scientific Reports
Vitenskapelig artikkel
Rehberg-Haas, S.; Meyer, S.; Tielmann, M.; Lippemeier, S.; Vadstein, Olav; Bakke, Ingrid. (2015) Use of the microalga Pavlova viridis as enrichment product for the feeding of Atlantic cod larvae (Gadus morhua). Aquaculture
Vitenskapelig artikkel
Bakke, Ingrid; Coward, Eivind; Andersen, Tom; Vadstein, Olav. (2015) Selection in the host structures the microbiota associated with developing cod larvae (Gadus morhua). Environmental Microbiology
Vitenskapelig artikkel
Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bones, Atle M.. (2015) Gene regulation of lipid and phospholipid metabolism in Atlantic cod (Gadus morhua) larvae. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology
Vitenskapelig artikkel
Skjermo, Jorunn; Bakke, Ingrid; Dahle, Stine Veronica Wiborg; Vadstein, Olav. (2015) Probiotic strains introduced through live feed and rearingwater have low colonizing success in developing Atlantic cod larvae. Aquaculture
Vitenskapelig artikkel
Chauton, Matilde Skogen; Skolem, Lotte Maria Beate; Olsen, Lasse Mork; Vullum, Per Erik; Walmsley, John; Vadstein, Olav. (2015) Titanium uptake and incorporation into silica nanostructures by the diatom Pinnularia sp. (Bacillariophyceae). Journal of Applied Phycology
Vitenskapelig artikkel
Hoel, Sunniva; Mehli, Lisbeth; Bruheim, Torkjel; Vadstein, Olav; Jakobsen, Anita Nordeng. (2015) Assessment of Microbiological Quality of Retail Fresh Sushi from Selected Sources in Norway. Journal of Food Protection
Vitenskapelig artikkel

2014

Wang, Xinxin; Broch, Ole Jacob; Forbord, Silje; Handå, Aleksander; Skjermo, Jorunn; Reitan, Kjell Inge. (2014) Assimilation of inorganic nutrients from salmon (Salmo salar) farming by the macroalgae (Saccharina latissima) in an exposed coastal environment: Implications for integrated multi-trophic aquaculture. Journal of Applied Phycology
Vitenskapelig artikkel
Wold, Per-Arvid; Holan, Astrid Buran; Øie, Gunvor; Attramadal, Kari; Bakke, Ingrid; Vadstein, Olav. (2014) Effects of membrane filtration on bacterial number and microbial diversity in marine recirculating aquaculture system (RAS) for Atlantic cod (Gadus morhua L.) production. Aquaculture
Vitenskapelig artikkel
Luong, Anh D; Laender, Frederik De; Olsen, Yngvar; Vadstein, Olav; Dewulf, Jo; Janssen, Colin R.. (2014) Inferring time-variable effects of nutrient enrichment on marine ecosystems using inverse modelling and ecological network analysis. Science of the Total Environment
Vitenskapelig artikkel
Chauton, Matilde Skogen; Vadstein, Olav; Reitan, Kjell Inge. (2014) Nye marine ressurser: Kan vi bruke mikroalger i fiskefor?. Norsk Fiskeoppdrett
Fagartikkel
Leiknes, Øystein; Striberny, Anja; Tokle, Nils Egil; Olsen, Yngvar; Vadstein, Olav; Sommer, Ulrich. (2014) Feeding selectivity of Calanus finmarchicus in the Trondheimsfjord. Journal of Sea Research
Vitenskapelig artikkel
Attramadal, Kari; Minniti, Giusi; Øie, Gunvor; Kjørsvik, Elin; Østensen, Mari-Ann; Bakke, Ingrid. (2014) Microbial control of the rearing water of larvae.
Faglig kapittel
Attramadal, Kari; Troung, Thi My Hanh; Bakke, Ingrid; Skjermo, Jorunn; Olsen, Yngvar; Vadstein, Olav. (2014) RAS and microbial maturation as tools for K-selection of microbial communities improve survival in cod larvae. Aquaculture
Vitenskapelig artikkel
Schryver, Peter De; Vadstein, Olav. (2014) Ecological theory as a foundation to control pathogenic invasion in aquaculture. The ISME Journal
Vitenskapelig artikkel

2013

Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bakke, Ingrid. (2013) Gene regulation of Atlantic cod (Gadus morhua) larvae with focus on lipid digestion and phospholipid metabolism. Communications in agricultural and applied biological sciences
Vitenskapelig artikkel
Vadstein, Olav; Bergh, Øivind; Gatesoupe, Francois-Joel; Galindo-Villegas, Jorge; Mulero, Victoriano; Picchietti, Simona. (2013) Microbiology and immunology of fish larvae. Reviews in Aquaculture
Vitenskapelig oversiktsartikkel/review
Olsen, Lasse Mork; Ardelan, Murat Van; Hewes, Christopher D.; Holm-Hansen, Osmund; Reiss, Christian; Bizsel, Nihayet. (2013) Microbial biogeography during austral summer 2007 in the surface waters around the South Shetland Islands, Antarctica. Aquatic Microbial Ecology
Vitenskapelig artikkel
Mühlroth, Alice; Li, Keshuai; Røkke, Gunvor; Winge, Per; Olsen, Yngvar; Hohmann-Marriott, Martin Frank. (2013) Pathways of Lipid Metabolism in Marine Algae, Co-Expression Network, Bottlenecks and Candidate Genes for Enhanced Production of EPA and DHA in Species of Chromista. Marine Drugs
Vitenskapelig oversiktsartikkel/review
Bakke, Ingrid; Skjermo, Jorunn; Vo, Tu Anh; Vadstein, Olav. (2013) Live feed is not a major determinant of the microbiota associated with cod larvae (Gadus morhua). Environmental Microbiology Reports
Vitenskapelig artikkel
Gatesoupe, Francois-Joel; Covès, Denis; Ortega, Aurelio; Papandroulakis, Nikos; Vadstein, Olav; Gándara, Fernando de la. (2013) A spatiotemporal study of bacterial community profiles associated with Atlantic bluefin tuna larvae, Thunnus thynnus L., in three Mediterranean hatcheries. Aquaculture Research
Vitenskapelig artikkel
Chauton, Matilde Skogen; Olsen, Yngvar; Vadstein, Olav. (2013) Biomass production from the microalga Phaeodactylum tricornutum: Nutrient stress and chemical composition in exponential fed-batch cultures. Biomass & Bioenergy
Vitenskapelig artikkel
Olsen, Yngvar; Reinertsen, Helge; Sommer, Ulrich; Vadstein, Olav. (2013) Responses of biological and chemical components in North East Atlantic coastal water to experimental nitrogen and phosphorus addition - A full scale ecosystem study and its relevance for management. Science of the Total Environment
Vitenskapelig artikkel
Blancheton, Jean-Paul; Attramadal, Kari; Michaud, L.; d’Orbcastele, E. Roque; Vadstein, Olav. (2013) Insight into bacterial population in aquaculture systems and its implication. Aquacultural Engineering
Vitenskapelig oversiktsartikkel/review
Chauton, Matilde Skogen; Winge, Per; Brembu, Tore; Vadstein, Olav; Bones, Atle M.. (2013) Gene regulation of carbon fixation, storage, and utilization in the diatom phaeodactylum tricornutum acclimated to light/dark cycles. Plant Physiology
Vitenskapelig artikkel

2012

Vadstein, Olav; Andersen, Tom; Reinertsen, Helge; Olsen, Yngvar. (2012) Carbon, nitrogen and phosphorus resource supply and utilisation for coastal planktonic heterotrophic bacteria in a gradient of nutrient loading. Marine Ecology Progress Series
Vitenskapelig artikkel
Attramadal, Kari; Øie, Gunvor; Størseth, Trond Røvik; Alver, Morten; Vadstein, Olav; Olsen, Yngvar. (2012) The effects of moderate ozonation or high intensity UV-irradiation on the microbial environment in RAS for marine larvae. Aquaculture
Vitenskapelig artikkel
Attramadal, Kari; Tøndel, Bjørnar; Salvesen, Ingrid; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2012) Ceramic clay reduces the load of organic matter and bacteria in marine fish larval culture tanks. Aquacultural Engineering
Vitenskapelig artikkel
Attramadal, Kari; Salvesen, Ingrid; Xue, Renyu; Øie, Gunvor; Størseth, Trond Røvik; Vadstein, Olav. (2012) Recirculation as a possible microbial control strategy in the production of marine larvae. Aquacultural Engineering
Vitenskapelig artikkel
Chauton, Matilde Skogen; Vadstein, Olav; Eggen, Marit; Tranell, Gabriella. (2012) Alger kan gi geniale solceller. Vitenskap-og-teknologi - NRK
Populærvitenskapelig artikkel
Vadstein, Olav; Olsen, Lasse Mork; Andersen, Tom. (2012) Prey-predator dynamics in rotifers: density-dependent consequences of spatial heterogeneity due to surface attachment. Ecology
Vitenskapelig artikkel
Forberg, Torunn; Vestrum, Ragnhild Inderberg; Arukwe, Augustine; Vadstein, Olav. (2012) Bacterial composition and activity determines host gene-expression responses in gnotobiotic Atlantic cod (Gadus morhua) larvae. Veterinary Microbiology
Vitenskapelig artikkel
Olsen, Yngvar; Tokle, Nils Egil; Vadstein, Olav. (2012) Hvordan forvalte vannmassene? Om samspillet mellom næringssalt-utslipp og det planktoniske økosystemet.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Fjellheim, Anders; Playfoot, Karina Jane; Skjermo, Jorunn; Vadstein, Olav. (2012) Inter-individual variation in the dominant intestinal microbiota of reared Atlantic cod (Gadus morhua L.) larvae. Aquaculture Research
Vitenskapelig artikkel
Chauton, Matilde Skogen; Vadstein, Olav; Eggen, Marit; Tranell, Gabriella. (2012) Alger kan gi geniale solceller. Forskning.no
Populærvitenskapelig artikkel

2011

Vadstein, Olav. (2011) Large variation in growth-limiting factors for marine heterotrophic bacteria in the Arctic waters of Spitsbergen (78 degrees N). Aquatic Microbial Ecology
Vitenskapelig artikkel
Forberg, Torunn; Arukwe, Augustine; Vadstein, Olav. (2011) A protocol and cultivation system for gnotobiotic Atlantic cod larvae (Gadus morhua L.) as a tool to study host microbe interactions. Aquaculture
Vitenskapelig artikkel
Forberg, Torunn; Arukwe, Augustine; Vadstein, Olav. (2011) Two strategies to unravel gene expression responses of host-microbe interactions in cod (Gadus morhua) larvae. Aquaculture Research
Vitenskapelig artikkel
Bakke, Ingrid; Schryver, Peter De; Boon, Nico; Vadstein, Olav. (2011) PCR-based community structure studies of Bacteria associated with eukaryotic organisms: A simple PCR strategy to avoid co-amplification of eukaryotic DNA. Journal of Microbiological Methods
Vitenskapelig artikkel
Olsen, Yngvar; Andersen, Tom; Gismervik, Ingrid; Vadstein, Olav. (2011) Marine heterotrophic bacteria, protozoan and metazoan zooplankton may experience protein N or mineral P limitation in coastal waters. Marine Ecology Progress Series
Vitenskapelig artikkel
Vadstein, Olav. (2011) Oppdrett og troverdighet.
Kronikk

2010

Fjellheim, Anders; Klinkenberg, Geir; Skjermo, Jorunn; Aasen, Inga-Marie; Vadstein, Olav. (2010) Selection of candidate probionts by two different screening strategies from Atlantic cod (Gadus morhua L.) larvae. Veterinary Microbiology
Vitenskapelig artikkel
Attramadal, Kari; Buran, Astrid; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2010) Recirculation: Microbial Control Strategy For Intensive Marine Larviculture. Global Aquaculture Advocate
Fagartikkel
Hess-Erga, Ole-Kristian; Blomvågnes-Bakke, Bente; Vadstein, Olav. (2010) Recolonization by heterotrophic bacteria after UV irradiation or ozonation of seawater; a simulation of ballast water treatment. Water Research
Vitenskapelig artikkel

2009

Saage, Andrea; Vadstein, Olav; Sommer, Ulrich. (2009) Feeding behaviour of adult Centropages hamatus (Copepoda, Calanoida): Functional response and selective feeding experiments. Journal of Sea Research
Vitenskapelig artikkel
Vestrum, Ragnhild Inderberg; Forberg, Torunn; Vadstein, Olav. (2009) Impact of live versus dead bacteria on survival, growth, and gene expression in Atlantic cod (Gadus morhua) larvae.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Forberg, Torunn; Vadstein, Olav; Arukwe, Augustine. (2009) Strategies to unravel gene expression responses of host-microbe interactions in cod (Gadus morhua) larvae.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Vadstein, Olav. (2009) Interactions in the planktonic food web.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2008

Saage, Andrea; Altin, Dag; Vadstein, Olav; Sommer, Ulrich. (2008) Trophic position of Calanus finmarchicus (Copepoda, Calanoida) in the Trondheim Fjord. Journal of Sea Research
Vitenskapelig artikkel
Hess-Erga, Ole-Kristian; Attramadal, Kari; Vadstein, Olav. (2008) Biotic and abiotic particles protect marine heterotrophic bacteria during UV and ozone disinfection. Aquatic Biology
Vitenskapelig artikkel
Evjemo, Jan Ove; Tokle, Nils Egil; Vadstein, Olav; Olsen, Yngvar. (2008) Effect of essential dietary fatty acids on egg production and hatching success of the marine copepod Temora longicornis. Journal of Experimental Marine Biology and Ecology
Vitenskapelig artikkel
Fjellheim, Anders; Skjermo, Jorunn; Vadstein, Olav. (2008) Evaluation of probiotic bacteria for Atlantic cod (Gadhus morhua L.) larvae. World Aquaculture
Vitenskapelig artikkel

2007

Skjermo, Jorunn; Fjellheim, Anders; Klinkenberg, Geir; Aasen, Inga Marie; Vadstein, Olav. (2007) Screening of probiotic bacteria for Atlantic cod larvae. Global Aquaculture Advocate
Populærvitenskapelig artikkel
Fjellheim, Anders; Playfoot, Karina Jane; Skjermo, Jorunn; Vadstein, Olav. (2007) Vibrionaceae dominates the microflora antagonistic towards Listonella anguillarum in the intestine of cultured Atlantic cod (Gadus morhua L.) larvae. Aquaculture
Vitenskapelig artikkel
Næss, Camilla; Vadstein, Olav. (2007) Food selectivity and trophic position of mesozooplankton in the Trondheim fjord. NTNU, Institutt for biologi NTNU, Institutt for biologi
Mastergradsoppgave
Dooms, Stefania; Papakostas, Spiros; Hoffman, Stefan; Delbare, Daan; Dierckens, Kristof; Triantafyllidis, Alexander. (2007) Denaturing gradient gel electrophoresis (DGGE) as a tool for the characterisation of Brachionus sp. strains. Aquaculture
Vitenskapelig artikkel
Kostopoulou, Venetia; Vadstein, Olav. (2007) Growth performance of the rotifers Brachionus plicatilis, B. ‘Nevada’ and B. ‘Cayman’ under different food concentrations. Aquaculture
Vitenskapelig artikkel
Olsen, Yngvar; Andersen, Tom; Gismervik, Ingrid; Vadstein, Olav. (2007) Protozoan and metazoan zooplankton-mediated carbon flows in nutrient-enriched coastal planktonic communities. Marine Ecology Progress Series
Vitenskapelig artikkel
Attramadal, Kari; Olsen, Yngvar; Vadstein, Olav; Salvesen, Ingrid. (2007) Clay particles offer alternative water treatment in marine fish larvae tanks. Global Aquaculture Advocate
Populærvitenskapelig artikkel

2006

Papakostas, Spiros; Dooms, Stefania; Triantafyllidis, Alexander; Deloof, Daphne; Kappas, Ilias; Dierckens, Kristof. (2006) Evaluation of DNA methodologies in identifying Brachionus species used in European hatcheries. Aquaculture
Vitenskapelig artikkel
Sundt-Hansen, Line E.B.; Olsen, Yngvar; Stibor, Herwig; Heldal, Mikal; Vadstein, Olav. (2006) Trophic cascades mediated by copepods, not nutrient supply rate, determine the development of picocyanobacteria. Aquatic Microbial Ecology
Vitenskapelig artikkel
Playfoot, Karina Jane; Vadstein, Olav. (2006) Isolation and characterisation of bacteria from the gut of cod larvae (Gadus morhua L.) for consideration of probiotic effects. NTNU, Institutt for biologi NTNU, Institutt for biologi
Mastergradsoppgave
Stibor, Herwig; Gelzleichter, Anna; Hantzsche, Florian; Sommer, Ulrich; Striebel, Maren; Vadstein, Olav. (2006) Combining dialysis and dilution techniques to estimate gross growth rate of phytoplankton and grazing by micro- and mesozooplankton in situ. Archiv für Hydrobiologie
Vitenskapelig artikkel
Olsen, Yngvar; Agusti, Susana; Andersen, T.; Duarte, Carlos; Gasol, J. M.; Gismervik, Ingrid. (2006) A comparative study of responses in planktonic food web structure and function in contrasting European coastal waters exposed to experimental nutrient addition. Limnology and Oceanography
Vitenskapelig artikkel

2005

Attramadal, Kari; Salvesen, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2005) Water quality and microbial environment in a flow through and recirculation system for intensive rearing of cod larvae (Gadus morhua L.). Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Fjellheim, Anders; Playfoot, Karina; Aasen, Inga Marie; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2005) Evaluation of potential probiotics for cod larvae: Impact of initial screening strategy. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Kostopoulou, Venetia; Vadstein, Olav. (2005) Growth kinetics in three strains of the Brachionus plicatilis species complex. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Playfoot, Karina; Fjellheim, Anders; Vadstein, Olav. (2005) Isolation and characterisation of bacteria from the gut of cod larvae for consideration of probiotic effects. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Attramadal, Kari; Xue, Renyu; Salvesen, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2005) Microbial environment in a flow-through and a recirculating system for intensive rearing of cod larvae (Gadus morhua L.). Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Fjellheim, Anders; Playfoot, Karina; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2005) Characterization of the dominant and the antagonistic bacterial flora of cod (Gadus morhua L.) larvae reared under different conditions. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Skjermo, Jorunn; Salvesen, Ingrid; Fjellheim, Anders; Størseth, Trond; Vadstein, Olav. (2005) Probiotic approach for health management in juvenile production. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Salvesen, Ingrid; Attramadal, Kari; Vadstein, Olav. (2005) Interactions between bacteria and suspended particles in intensive larval culture: A comparison between microalgae, algal concentrate and clay. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Salvesen, Ingrid; Attramadal, Kari; Vadstein, Olav. (2005) Interactions between bacteria and suspended particles in intensive larval culture: A comparison between microalgae, algal concentrate and clay. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Sommer, Ulrich; Hansen, Thomas; Blum, Olga; Holzner, Nina; Vadstein, Olav; Stibor, Herwig. (2005) Copepod and microzooplankton grazing in mesocosms fertilised with different Si : N ratios: no overlap between food spectra and Si : N influence on zooplankton trophic level. Oecologia
Vitenskapelig artikkel
Børsheim, Knut Yngve; Vadstein, Olav; Myklestad, Sverre M.; Reinertsen, Helge; Kirkvold, Ståle; Olsen, Yngvar. (2005) Photosynthetic algal production, accumulation and release of phytoplankton storage carbohydrates and bacterial production in a gradient in daily nutrient supply. Journal of Plankton Research
Vitenskapelig artikkel
Fjellheim, Anders; Playfoot, Karina; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2005) Characterization of the dominant and the antagonistic bacterial flora of cod (Gadus morhua L.) larvae reared under different conditions. European Aquaculture Society European Aquaculture Society
Vitenskapelig antologi/Konferanseserie
Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. European Aquaculture Society European Aquaculture Society
Vitenskapelig antologi/Konferanseserie

2004

Vadstein, Olav; Mo, T.A.; Bergh, Ø.. (2004) Microbial interactions, prophylaxis and diseases. Blackwell Publishing Blackwell Publishing
Fagbok
Stibor, Herwig; Vadstein, Olav; Lippert, Bettina; Roederer, Wendy; Olsen, Yngvar. (2004) Calanoid copepods and nutrient enrichment determine population dynamics of the appendicularian Oikopleura dioica: a mesocosm experiment. Marine Ecology Progress Series
Vitenskapelig artikkel
Stibor, Herwig; Vadstein, Olav; Diehl, Sebastian; Gelzleichter, Anna; Hansen, Thomas; Hantzsche, Florian. (2004) Copepods act as a switch between alternative trophic cascades in marine pelagic food webs. Ecology Letters
Vitenskapelig artikkel
Vadstein, Olav; Stibor, Herwig; Lippert, Bettina; Loseth, K; Roederer, Wendy; Sundt-Hansen, Line E.B.. (2004) Moderate increase in the biomass of omnivorous copepods may ease grazing control of planktonic algae. Marine Ecology Progress Series
Vitenskapelig artikkel
Sommer, Ulrich; Hansen, T; Stibor, H; Vadstein, Olav. (2004) Persistence of phytoplankton responses to different Si:N ratios under mesozooplankton grazing pressure: a mesocosm study with NE Atlantic plankton. Marine Ecology Progress Series
Vitenskapelig artikkel
Vadstein, Olav; Mo, Tor Atle; Bergh, Øivind. (2004) Microbial interactions, prophylaxis and diseases.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

2003

Vadstein, Olav; Olsen, Lasse Mork; Busch, A.; Andersen, Tom; Reinertsen, Helge. (2003) Is phosphorus limitation of heterotrophic bacteria and accumulation of degradable DOC a normal phenomenon in phosphorus limited systems? A microcosm study. FEMS Microbiology Ecology
Vitenskapelig artikkel
Gismervik, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2003) Marine mesocosm Zooplankton response to nutrients. Scope Newsletter
Sammendrag/Abstract

2002

Reitan, Kjell Inge; Øie, Gunvor; Vadstein, Olav; Reinertsen, Helge. (2002) Response on scallop culture to enhanced nutrient supply by experimental fertilisation of a landlocked bay. Hydrobiologia
Vitenskapelig artikkel
Gismervik, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2002) Micro- and mesozooplankton response to enhanced nutrient input – a mesocosm study. Hydrobiologia
Vitenskapelig artikkel
Øie, Gunvor; Reitan, Kjell Inge; Vadstein, Olav; Reinertsen, Helge. (2002) Effect of nutrient supply on growth of blue mussels (Mytilus edulis) in a landlocked bay. Hydrobiologia
Vitenskapelig artikkel
Olsen, Lasse Mork; Reinertsen, Helge; Vadstein, Olav. (2002) Can phosphorus limitation inhibit dissolved organic carbon consumption in aquatic microbial food webs? A microcosm study. Microbial Ecology
Vitenskapelig artikkel
Gismervik, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2002) Micro- and mesozooplankton response to enhanced nutrient input - a mesocosm study. Hydrobiologia
Vitenskapelig artikkel

2001

Makridis, Pavlos; Bergh, Øivind; Skjermo, Jorunn; Vadstein, Olav. (2001) Addition of bacteria bioencapsulated in Artemia metanauplii to a rearing system for halibut larvae. Aquaculture International
Vitenskapelig artikkel

2000

Makridis, Pavlos; Fjellheim, Anders Jon; Skjermo, Jorunn; Vadstein, Olav. (2000) Colonization of the gut in first feeding turbot by bacterial strains added to the water or bioencapsulated in rotifers. Aquaculture International
Vitenskapelig artikkel
Salvesen, Ingrid; Vadstein, Olav. (2000) Evaluation of plate count methods for determination of maximum specific growth rate in mixed microbial communities, and its possible application for diversity assessment. Journal of Applied Microbiology
Vitenskapelig artikkel
Makridis, Pavlos; Fjellheim, Anders Jon; Skjermo, Jorunn; Vadstein, Olav. (2000) Control of the bacterial flora of Brachionus plicatilis and Artemia franciscana by incubation in bacterial suspensions. Aquaculture
Vitenskapelig artikkel
Vadstein, Olav. (2000) Strategies for avoiding bacterial infections: Beat them or join them. ASM news (Washington)
Vitenskapelig artikkel
Olsen, Atle Ivar; Olsen, Yngvar; Attramada, Yngve; Christie, K; Birkbeck, T.H.; Skjermo, Jorunn. (2000) Effects of short term feeding of microalgae on the bacterial flora associated with juvenile Artemia fransiscana. Aquaculture
Vitenskapelig artikkel
Salvesen, Ingrid; Vadstein, Olav. (2000) Evaluation of plate count methods for determination of maximum specific growth rate in mixed microbial communities, and its possible application for diversity assessment. Journal of Applied Microbiology
Vitenskapelig artikkel
Evjemo, Jan Ove; Vadstein, Olav; Olsen, Yngvar. (2000) Feeding and assimilation kinetics of Artemia franciscana fed Isochrysis galbana (clone T. Iso). Marine Biology
Vitenskapelig artikkel
Vadstein, Olav. (2000) Heterotrophic, planktonic bacteria and cycling of phosphorus: Phosphorus requirements, competitive ability and food web interactions. Advances in Microbial Ecology
Vitenskapelig artikkel
Vadstein, Olav. (2000) Dørum og universitetene.
Kronikk
Rokstad, Anne Mari Aukan; Skjermo, Jorunn; Skjåk-Bræk, Gudmund; Vadstein, Olav. (2000) Makrofagstudier hos piggvar og kveite etter immunstimulering med FMI in vitro og in vivo. SINTEF fiskeri og havbruk SINTEF fiskeri og havbruk
Rapport
Olsen, Yngvar; Vadstein, Olav; Sunde, Magne; Storøy, Jostein. (2000) Maten vår kommer fra havet. Norsk Fiskeoppdrett
Populærvitenskapelig artikkel

1995

Skjermo, Jorunn; Defoort, Thomas; Dehasque, Marleen; Espevik, Terje; Olsen, Yngvar; Skjåk-Bræk, Gudmund. (1995) Immunostimulation of juvenile turbot (Scophthalmus maximus L.) using an alginate with high mannuronic acid content administered via the live food organism Artemia. Fish and Shellfish Immunology
Vitenskapelig artikkel
Salvesen, Ingrid; Vadstein, Olav. (1995) Surface disinfection of eggs from marine fish: Evaluation of four chemicals. Aquaculture International
Vitenskapelig artikkel

Tidsskriftspublikasjoner

Vadstein, Olav. (2025) Hva skjer hvis mikrobene forsvinner? - adressa.no.
Kronikk
Vadstein, Olav. (2025) Den oversette biologien.
Kronikk
Khadka, Sujan; Vadstein, Olav; Bakke, Ingrid; Olsen, Yngvar; Attramadal, Kari Johanne Kihle. (2025) Bacteria in land-based larval rearing systems: sources of bacteria and their quantitative and qualitative influence on the microbiota of rearing water and larvae. Aquaculture
Vitenskapelig artikkel
Mathisen, Amalie Johanne Horn; Canny, Sol Gomez de la Torre; Gundersen, Madeleine S.; Østensen, Mari-Ann; Olsen, Yngvar; Vadstein, Olav. (2025) Community assembly of gut microbiomes in yolk sac fry of Atlantic salmon: host genetics, environmental microbiomes, and ecological processes. FEMS Microbiology Ecology
Vitenskapelig artikkel
Bandara, Kasun Anuruddha; Politis, Sebastian Nikitas; Sørensen, Sune Riis; Benini, Elisa; Tomkiewicz, Jonna; Vadstein, Olav. (2024) Effect of Food Amounts on Larval Performance, Bacteriome and Molecular Immunologic Development during First-Feeding Culture of European Eel. Microorganisms
Vitenskapelig artikkel
Bandara, Kasun Anuruddha; Politis, Sebastian N.; Sganga, Daniela Eliana; Sørensen, Sune Riis; Koumpiadis, Paraskevas; Tomkiewicz, Jonna. (2024) Effects of European eel egg and larval stocking density on rearing water, offspring bacteriome and derived immune response. Aquaculture
Vitenskapelig artikkel
Navarro-Guillén, Carmen; Lorentsen, Eirik Degré; Perera, Erick; Yúfera, Manuel; Bakke, Ingrid; Vadstein, Olav. (2024) The role of feeding as synchronizer of gut microbiota dynamics and its potential contribution to protein digestion in greater amberjack (Seriola dumerili). Frontiers in Marine Science
Vitenskapelig artikkel
Volpe, Charlotte; Nymark, Marianne; Andersen, Tom; Winge, Per; Lavaud, Johann; Vadstein, Olav. (2024) Skeletonema marinoi ecotypes show specific habitat-related responses to fluctuating light supporting high potential for growth under photobioreactor light regime. New Phytologist
Vitenskapelig artikkel
Vadstein, Olav; Bakken, Lars. (2024) Den glemte klimaaktøren.
Kronikk
Vadstein, Olav. (2024) Bruk av antibiotika i Norge må dramatisk ned, men lite skjer. Klassekampen
Leserinnlegg
Vadstein, Olav. (2024) Gonoré og antibiotika. Klassekampen
Leserinnlegg
Gundersen, Madeleine S.; Vadstein, Olav. (2024) An exploration of the impact of phylogenetic tree structure on NTI and βNTI estimates of community assembly. Scientific Reports
Vitenskapelig artikkel
Vadstein, Olav. (2023) Antibiotikabruk og villfarelser.
Kronikk
Canny, Sol Gomez de la Torre; Nordgård, Catherine Taylor; Mathisen, Amalie Johanne Horn; Lorentsen, Eirik Degré; Vadstein, Olav; Bakke, Ingrid. (2023) A novel gnotobiotic experimental system for Atlantic salmon ( Salmo salar L.) reveals a microbial influence on mucosal barrier function and adipose tissue accumulation during the yolk sac stage. Frontiers in Cellular and Infection Microbiology
Vitenskapelig artikkel
Gundersen, Madeleine S.; Fiedler, Alexander Willi; Bakke, Ingrid; Vadstein, Olav. (2023) The impact of phage treatment on bacterial community structure is minor compared to antibiotics. Scientific Reports
Vitenskapelig artikkel
Bandara, Kasun Anuruddha; Benini, Elisa; Politis, Sebastian N.; Conceição, Luis E.C.; Santos, André; Sørensen, Sune Riis. (2023) Exploring bacterial community composition and immune gene expression of European eel larvae (Anguilla anguilla) in relation to first-feeding diets. PLOS ONE
Vitenskapelig artikkel
Vadstein, Olav. (2023) Antibiotika og myter. Aftenposten (morgenutg. : trykt utg.)
Leserinnlegg
Vadstein, Olav. (2023) Antibiotikabruk i Norge: Bør vi primært skryte?. Aftenposten (morgenutg. : trykt utg.)
Leserinnlegg
Fiedler, Alexander Willi; Gundersen, Madeleine S.; Vo, Toan Phuc; Almaas, Eivind; Vadstein, Olav; Bakke, Ingrid. (2023) Phage therapy minimally affects the water microbiota in an Atlantic salmon (Salmo salar) rearing system while still preventing infection. Scientific Reports
Vitenskapelig artikkel
Navarro-Guillén, Carmen; Lorentsen, Eirik Degré; Perera, Erick; Yúfera, Manuel; Vadstein, Olav. (2023) Feeding and water temperature modulate the potential activity of gut microbiota in greater amberjack juveniles (Seriola dumerili). Frontiers in Marine Science
Vitenskapelig artikkel
Fiedler, Alexander Willi; Drågen, Martha Kristine Rindarøy; Lorentsen, Eirik Degré; Vadstein, Olav; Bakke, Ingrid. (2023) The stability and composition of the gut and skin microbiota of Atlantic salmon throughout the yolk sac stage. Frontiers in Microbiology
Vitenskapelig artikkel
Vadstein, Olav. (2023) Dør vi uten oljen?. Klassekampen
Leserinnlegg
Vadstein, Olav. (2023) Ja, virkeligheten er plagsom. Klassekampen
Leserinnlegg
Vestrum, Ragnhild Inderberg; Forberg, Torunn; Luef, Birgit; Bakke, Ingrid; Winge, Per; Olsen, Yngvar. (2022) Commensal and opportunistic bacteria present in the microbiota in atlantic cod (Gadus morhua) larvae differentially alter the hosts’ innate immune responses. Microorganisms
Vitenskapelig artikkel
Jafari, Leila; Gregersen, Kim Joao de Jesus; Vadstein, Olav; Pedersen, Lars-Flemming. (2022) Removal of microparticles and bacterial inactivation in freshwater RAS by use of foam fractionation, H2O2 and NaCl. Aquaculture Research
Vitenskapelig artikkel
Obrestad, Kathrine; Einum, Sigurd; Vadstein, Olav. (2022) Stochastic variation in gut bacterial community affects reproductive rates in the water flea Daphnia magna. FEMS Microbiology Ecology
Vitenskapelig artikkel
Bugten, Anette Voll; Attramadal, Kari; Fossmark, Ragnhild Olsen; Rosten, Trond Waldemar; Vadstein, Olav; Bakke, Ingrid. (2022) Changes in rearing water microbiomes in RAS induced by membrane filtration alters the hindgut microbiomes of Atlantic salmon (Salmo salar) parr. Aquaculture
Vitenskapelig artikkel
Gundersen, Madeleine S.; Vadstein, Olav; Schryver, Peter De; Attramadal, Kari. (2022) Aquaculture rearing systems induce no legacy effects in Atlantic cod larvae or their rearing water bacterial communities. Scientific Reports
Vitenskapelig artikkel
Navada, Sharada; Vadstein, Olav. (2022) Salinity Acclimation Strategies in Nitrifying Bioreactors. Frontiers in Marine Science
Vitenskapelig artikkel
Rong, Ragnhild Lind; Gagnat, Maren Ranheim; Attramadal, Yngve; Vadstein, Olav. (2022) Microbial water quality of the copepod Acartia tonsa in cultures for use as live feed. Aquaculture
Vitenskapelig artikkel
Thingstad, Tron Frede; Øvreås, Lise; Vadstein, Olav. (2022) Mechanisms Generating Dichotomies in the Life Strategies of Heterotrophic Marine Prokaryotes. Diversity
Vitenskapelig oversiktsartikkel/review
Dahle, Stine Veronica Wiborg; Attramadal, Kari; Vadstein, Olav; Hestdahl, Hans Ivar; Bakke, Ingrid. (2021) Microbial community dynamics in a commercial RAS for production of Atlantic salmon fry (Salmo salar). Aquaculture
Vitenskapelig artikkel
Mathew, K Avarachen; Ardelan, Murat Van; Gonzalez, Susana Villa; Vadstein, Olav; Vezhapparambu, Veena Sajith; Leiknes, Øystein. (2021) Temporal dynamics of carbon sequestration in coastal North Atlantic fjord system as seen through dissolved organic matter characterisation. Science of the Total Environment
Vitenskapelig artikkel
Gundersen, Madeleine S.; Vadstein, Olav; Bakke, Ingrid; Andersen, Tom; Morelan, Ian. (2021) The effect of periodic disturbances and carrying capacity on the significance of selection and drift in complex bacterial communities. ISME Communications
Vitenskapelig artikkel
Navada, Sharada; Gaumet, Frederic; Tveten, Ann-Kristin; Kolarevic, Jelena; Vadstein, Olav. (2021) Seeding as a start-up strategy for improving the acclimation of freshwater nitrifying bioreactors to salinity stress. Aquaculture
Vitenskapelig artikkel
Nikouli, Eleni; Kormas, Konstantinos Ar.; Jin, Yang; Olsen, Yngvar; Bakke, Ingrid; Vadstein, Olav. (2021) Dietary Lipid Effects on Gut Microbiota of First Feeding Atlantic Salmon (Salmo salar L.). Frontiers in Marine Science
Vitenskapelig artikkel
Attramadal, Kari J.K.; Øien, John Vegard; Kristensen, Elisabeth; Evjemo, Jan Ove; Kjørsvik, Elin; Vadstein, Olav. (2021) UV treatment in RAS influences the rearing water microbiota and reduces the survival of European lobster larvae (Homarus gammarus). Aquacultural Engineering
Vitenskapelig artikkel
Fossmark, Ragnhild Olsen; Attramadal, Kari; Kristian, Nordøy; Østerhus, Stein Wold; Vadstein, Olav. (2021) A comparison of two seawater adaptation strategies for Atlantic salmon post-smolt (Salmo salar) grown in recirculating aquaculture systems (RAS): Nitrification, water and gut microbiota, and performance of fish. Aquaculture
Vitenskapelig artikkel
Copetti, Fabrini; Gregoracci, Gustavo Bueno; Vadstein, Olav; Schveitzer, Rodrigo. (2021) Management of biofloc concentrations as an ecological strategy for microbial control in intensive shrimp culture. Aquaculture
Vitenskapelig artikkel
Volpe, Charlotte; Vadstein, Olav; Andersen, Geir; Andersen, Tom. (2021) Nanocosm: A well plate photobioreactor for environmental and biotechnological studies. Lab on a Chip
Vitenskapelig artikkel
Silva, Blanca Magdalena Gonzalez; Jonassen, Kjell Rune; Bakke, Ingrid; Østgaard, Kjetill; Vadstein, Olav. (2021) Understanding structure/function relationships in nitrifying microbial communities after cross-transfer between freshwater and seawater. Scientific Reports
Vitenskapelig artikkel
Navada, Sharada; Sebastianpillai, Marianna; Kolarevic, Jelena; Fossmark, Ragnhild Olsen; Tveten, Ann-Kristin; Gaumet, Frederic. (2020) A salty start: Brackish water start-up as a microbial management strategy for nitrifying bioreactors with variable salinity. Science of the Total Environment
Vitenskapelig artikkel
Navada, Sharada; Knutsen, Maja F.; Bakke, Ingrid; Vadstein, Olav. (2020) Nitrifying biofilms deprived of organic carbon show higher functional resilience to increases in carbon supply. Scientific Reports
Vitenskapelig artikkel
Fossmark, Ragnhild Olsen; Vadstein, Olav; Rosten, Trond Waldemar; Bakke, Ingrid; Koseto, Deni; Bugten, Anette Voll. (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
Vitenskapelig artikkel
Vadstein, Olav. (2020) Dårlig svar om korrelasjon. Klassekampen
Leserinnlegg
Vadstein, Olav. (2020) Samvariasjon gir ingen årsakssammenheng. Klassekampen
Leserinnlegg
Bakke, Ingrid; Canny, Sol Gomez de la Torre; Nordgård, Catherine Taylor; Vadstein, Olav; Dunker, Karen; Sletmoen, Marit. (2020) Bakterier på lakseskinn – har de noen funksjon?. Norsk Fiskeoppdrett
Populærvitenskapelig artikkel
Bakke, Ingrid; Canny, Sol Gomez de la Torre; Nordgård, Catherine Taylor; Vadstein, Olav; Dunker, Karen; Sletmoen, Marit. (2020) Bakterier på lakseskinn – har de noen funksjon?. Kyst.no
Populærvitenskapelig artikkel
Navada, Sharada; Vadstein, Olav; Gaumet, Frederic; Tveten, Ann-Kristin; Spanu, Claudia; Mikkelsen, Øyvind. (2020) Biofilms remember: Osmotic stress priming as a microbial management strategy for improving salinity acclimation in nitrifying biofilms. Water Research
Vitenskapelig artikkel
Jin, Yang; Olsen, Rolf Erik; Harvey, Thomas Nelson; Østensen, Mari-Ann; Li, Keshuai; Santi, Nina. (2020) Comparative transcriptomics reveals domestication‐associated features of Atlantic salmon lipid metabolism. Molecular Ecology
Vitenskapelig artikkel
Vestrum, Ragnhild Inderberg; Attramadal, Kari; Vadstein, Olav; Gundersen, Madeleine Stenshorne; Bakke, Ingrid. (2020) Bacterial community assembly in Atlantic cod larvae (Gadus morhua): Contributions of ecological processes and metacommunity structure. FEMS Microbiology Ecology
Vitenskapelig artikkel
Sanchez, Nicolas; Peterson, Claire Katja; Gonzalez, Susana Villa; Vadstein, Olav; Olsen, Yngvar; Ardelan, Murat Van. (2019) Effect of hydroxamate and catecholate siderophores on iron availability in the diatom Skeletonema costatum: Implications of siderophore degradation by associated bacteria. Marine Chemistry
Vitenskapelig artikkel
Le, Duy; Nguyen, Phuoc; Nguyen, Dung; Dierckens, Kristof; Boon, Nico; Lacoere, Tim. (2019) Gut Microbiota of Migrating Wild Rabbit Fish (Siganus guttatus) Larvae Have Low Spatial and Temporal Variability. Microbial Ecology
Vitenskapelig artikkel
Navada, Sharada; Vadstein, Olav; Tveten, Ann-Kristin; Verstege, Gerhardus C.; Terjesen, Bendik Fyhn; Mota, Vasco C.. (2019) Influence of rate of salinity increase on nitrifying biofilms. Journal of Cleaner Production
Vitenskapelig artikkel
Heggeset, Tonje Marita Bjerkan; Ertesvåg, Helga; Liu, Bin; Ellingsen, Trond Erling; Vadstein, Olav; Aasen, Inga Marie. (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
Vitenskapelig artikkel
Hess-Erga, Ole-Kristian; Moreno-Andrés, Javier; Enger, Øivind; Vadstein, Olav. (2019) Microorganisms in ballast water: Disinfection, community dynamics, and implications for management. Science of the Total Environment
Vitenskapelig oversiktsartikkel/review
Nymark, Marianne; Volpe, Charlotte; Hafskjold, Marthe Caroline Grønbech; Kirst, Henning; Serif, Manuel; Vadstein, Olav. (2019) Loss of ALBINO3b insertase results in truncated light-harvesting antenna in diatoms. Plant Physiology
Vitenskapelig artikkel
Hoel, Sunniva; Vadstein, Olav; Jakobsen, Anita Nordeng. (2019) The Significance of Mesophilic Aeromonas spp. in Minimally Processed Ready-to-Eat Seafood. Microorganisms
Vitenskapelig oversiktsartikkel/review
Røkke, Gunvor Bjerkelund; Melø, Thor Bernt; Mühlroth, Alice; Vadstein, Olav; Bones, Atle M.; Hohmann-Marriott, Martin Frank. (2019) Unique photosynthetic electron transport tuning and excitation distribution in heterokont algae. PLOS ONE
Vitenskapelig artikkel
Rojas-Tirado, Paula; Pedersen, Per Bovbjerg; Vadstein, Olav; Pedersen, Lars-Flemming. (2019) Microbial dynamics in RAS water: Effects of adding acetate as a biodegradable carbon-source. Aquacultural Engineering
Vitenskapelig artikkel
Jalili, Mahsa; Jin, Yang; Bones, Atle M.; Olsen, Yngvar; Vadstein, Olav; Østensen, Mari-Ann. (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
Vitenskapelig artikkel
Wang, Xinxin; Fosse, Hilde Karoline; Li, Keshuai; Chauton, Matilde Skogen; Vadstein, Olav; Reitan, Kjell Inge. (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
Vitenskapelig artikkel
Hoel, Sunniva; Vadstein, Olav; Jakobsen, Anita Nordeng. (2018) Growth of mesophilic Aeromonas salmonicida in an experimental model of nigiri sushi during cold storage. International journal of food microbiology
Vitenskapelig artikkel
Moreno-Andrés, Javier; Ambauen, Noemi; Vadstein, Olav; Halle, Cynthia; Acevedo-Merino, Asunción; Nebot, Enrique. (2018) Inactivation of marine heterotrophic bacteria in ballast water by an Electrochemical Advanced Oxidation Process. Water Research
Vitenskapelig artikkel
Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.. (2018) Rearing water treatment induces microbial selection influencing the microbiota and pathogen associated transcripts of Cod (Gadus morhua) Larvae. Frontiers in Microbiology
Vitenskapelig artikkel
Attramadal, Kari; Bakke, Ingrid; Vadstein, Olav. (2018) Mikrobiell kontroll i lukkede og landbaserte anlegg. Norsk Fiskeoppdrett
Populærvitenskapelig artikkel
Tsagaraki, Tatiana Margo; Pree, Bernadette; Leiknes, Øystein; Larsen, Aud; Bratbak, Gunnar; Øvreås, Lise. (2018) Bacterial community composition responds to changes in copepod abundance and alters ecosystem function in an Arctic mesocosm study. The ISME Journal
Vitenskapelig artikkel
Vadstein, Olav; Attramadal, Kari; Bakke, Ingrid; Forberg, Torunn; Olsen, Yngvar; Verdegem, Marc. (2018) Managing the microbial community of marine fish larvae: a holistic perspective for larviculture. Frontiers in Microbiology
Vitenskapelig oversiktsartikkel/review
Sanchez, Nicolas; Brown, Eunice Nana Adjoa; Olsen, Yngvar; Vadstein, Olav; Iriarte, Jose Luis; Gonzalez, Humberto E.. (2018) Effect of Siderophore on Iron Availability in a Diatom and a Dinoflagellate Species: Contrasting Response in Associated Bacteria. Frontiers in Marine Science
Vitenskapelig artikkel
Jin, Yang; Olsen, Rolf Erik; Østensen, Mari-Ann; Gillard, Gareth Benjamin; Li, Keshuai; Harvey, Thomas Nelson. (2018) Transcriptional regulation of lipid metabolism when salmon fry switches from endogenous to exogenous feeding. Aquaculture
Vitenskapelig artikkel
Vadstein, Olav; Attramadal, Kari; Bakke, Ingrid; Olsen, Yngvar. (2018) K-selection as microbial community management strategy: A method for improved viability of larvae in aquaculture. Frontiers in Microbiology
Vitenskapelig oversiktsartikkel/review
Rojas-Tirado, Paula; Pedersen, Per Bovbjerg; Vadstein, Olav; Pedersen, Lars-Flemming. (2018) Changes in microbial water quality in RAS following altered feed loading. Aquacultural Engineering
Vitenskapelig artikkel
Nordgård, Anna Synnøve Røstad; Bergland, Wenche Hennie; Vadstein, Olav; Mironov, Vladimir; Bakke, Rune; Østgaard, Kjetill. (2017) Anaerobic digestion of pig manure supernatant at high ammonia concentrations characterized by high abundances of Methanosaeta and non-euryarchaeotal archaea. Scientific Reports
Vitenskapelig artikkel
Silva, Blanca Magdalena Gonzalez; Rønning, Are J.; Andreassen, Ingrid Krogrud; Bakke, Ingrid; Cervantes, Francisco J.; Østgaard, Kjetill. (2017) Changes in the microbial community of an anammox consortium during adaptation to marine conditions revealed by 454 pyrosequencing. Applied Microbiology and Biotechnology
Vitenskapelig artikkel
Hoel, Sunniva; Vadstein, Olav; Jakobsen, Anita Nordeng. (2017) Species distribution and prevalence of putative virulence factors in mesophilic Aeromonas spp. isolated from fresh retail sushi. Frontiers in Microbiology
Vitenskapelig artikkel
Trinh, Thi Truc Ly; Bakke, Ingrid; Vadstein, Olav. (2017) Correlations of age and growth rate with microbiota composition in Atlantic cod (Gadus morhua) larvae. Scientific Reports
Vitenskapelig artikkel
Brembu, Tore; Chauton, Matilde Skogen; Winge, Per; Bones, Atle M.; Vadstein, Olav. (2017) Dynamic responses to silicon in Thalasiossira pseudonana - Identification, characterisation and classification of signature genes and their corresponding protein motifs. Scientific Reports
Vitenskapelig artikkel
Hoel, Sunniva; Jakobsen, Anita Nordeng; Vadstein, Olav. (2017) Effects of storage temperature on bacterial growth rates and community structure in fresh retail sushi. Journal of Applied Microbiology
Vitenskapelig artikkel
Mühlroth, Alice; Winge, Per; Assimi, Aimen El; Jouhet, Juliette; Maréchal, Eric; Hohmann-Marriott, Martin Frank. (2017) Mechanisms of phosphorus acquisition and lipid class remodeling under P limitation in a Marine Microalga. Plant Physiology
Vitenskapelig artikkel
Leiknes, Øystein; Etter, Siv Anina; Tokle, Nils E.; Bergvik, Maria; Vadstein, Olav; Olsen, Yngvar. (2016) The effect of essential fatty acids for the somatic growth in nauplii of Calanus finmarchicus. Frontiers in Marine Science
Vitenskapelig artikkel
Forberg, Torunn; Sjulstad, Eli Bjørnø; Bakke, Ingrid; Olsen, Yngvar; Hagiwara, Atsushi; Sakakura, Yoshitaka. (2016) Correlation between microbiota and growth in Mangrove Killifish (Kryptolebias marmoratus) and Atlantic cod (Gadus morhua). Scientific Reports
Vitenskapelig artikkel
Silva, Blanca Magdalena Gonzalez; Jonassen, Kjell Rune; Bakke, Ingrid; Østgaard, Kjetill; Vadstein, Olav. (2016) Nitrification at different salinities: Biofilm community composition and physiological plasticity. Water Research
Vitenskapelig artikkel
Attramadal, Kari; Minniti, Giusi; Øie, Gunvor; Kjørsvik, Elin; Østensen, Mari-Ann; Bakke, Ingrid. (2016) Microbial maturation of intake water at different carrying capacities affects microbial control in rearing tanks for marine fish larvae. Aquaculture
Vitenskapelig artikkel
Romann, Julien Clement; Chauton, Mathilde Skogen; Hanetho, Sidsel Meli; Vebner, Marius Juelsrud; Heldal, Mikal; Thaulow, Christian. (2016) Diatom frustules as a biomaterial: effects of chemical treatment on organic material removal and mechanical properties in cleaned frustules from two Coscinodiscus species. Journal of porous materials
Vitenskapelig artikkel
Liu, Bin; Ertesvåg, Helga; Aasen, Inga Marie; Vadstein, Olav; Brautaset, Trygve; Heggeset, Tonje Marita Bjerkan. (2016) Draft genome sequence of the docosahexaenoic acid producing thraustochytrid Aurantiochytrium sp. T66. Genomics Data
Vitenskapelig artikkel
Aasen, Inga Marie; Ertesvåg, Helga; Heggeset, Tonje Marita Bjerkan; Liu, Bin; Brautaset, Trygve; Vadstein, Olav. (2016) Thraustochytrids as production organisms for docosahexaenoic acid (DHA), squalene, and carotenoids. Applied Microbiology and Biotechnology
Vitenskapelig oversiktsartikkel/review
Bakke, Ingrid; Åm, Ann Louise; Kolarevic, Jelena; Ytrestøyl, Trine; Vadstein, Olav; Attramadal, Kari Johanne Kihle. (2016) Microbial community dynamics in semi-commercial RAS for production of Atlantic salmon post-smolts at different salinities. Aquacultural Engineering
Vitenskapelig artikkel
Mühlroth, Alice; Assimi, AE; Røkke, Gunvor; Despres, Julie; Winge, Per; Bruheim, Per. (2015) Transcriptional regulation of lipid accumulation in phosphorus limited Nannochloropsis oceanica. European journal of phycology
Sammendrag/Abstract
Nordgård, Anna Synnøve Røstad; Bergland, Wenche Hennie; Bakke, Rune; Vadstein, Olav; Østgaard, Kjetill; Bakke, Ingrid. (2015) Microbial community dynamics and biogas production from manure fractions in sludge bed anaerobic digestion. Journal of Applied Microbiology
Vitenskapelig artikkel
Romann, Julien Clement; Valmalette, Jean-Christophe; Chauton, Matilde Skogen; Tranell, Gabriella; Einarsrud, Mari-Ann; Vadstein, Olav. (2015) Wavelength and orientation dependent capture of light by diatom frustule nanostructures. Scientific Reports
Vitenskapelig artikkel
Rehberg-Haas, S.; Meyer, S.; Tielmann, M.; Lippemeier, S.; Vadstein, Olav; Bakke, Ingrid. (2015) Use of the microalga Pavlova viridis as enrichment product for the feeding of Atlantic cod larvae (Gadus morhua). Aquaculture
Vitenskapelig artikkel
Bakke, Ingrid; Coward, Eivind; Andersen, Tom; Vadstein, Olav. (2015) Selection in the host structures the microbiota associated with developing cod larvae (Gadus morhua). Environmental Microbiology
Vitenskapelig artikkel
Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bones, Atle M.. (2015) Gene regulation of lipid and phospholipid metabolism in Atlantic cod (Gadus morhua) larvae. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology
Vitenskapelig artikkel
Skjermo, Jorunn; Bakke, Ingrid; Dahle, Stine Veronica Wiborg; Vadstein, Olav. (2015) Probiotic strains introduced through live feed and rearingwater have low colonizing success in developing Atlantic cod larvae. Aquaculture
Vitenskapelig artikkel
Chauton, Matilde Skogen; Skolem, Lotte Maria Beate; Olsen, Lasse Mork; Vullum, Per Erik; Walmsley, John; Vadstein, Olav. (2015) Titanium uptake and incorporation into silica nanostructures by the diatom Pinnularia sp. (Bacillariophyceae). Journal of Applied Phycology
Vitenskapelig artikkel
Hoel, Sunniva; Mehli, Lisbeth; Bruheim, Torkjel; Vadstein, Olav; Jakobsen, Anita Nordeng. (2015) Assessment of Microbiological Quality of Retail Fresh Sushi from Selected Sources in Norway. Journal of Food Protection
Vitenskapelig artikkel
Wang, Xinxin; Broch, Ole Jacob; Forbord, Silje; Handå, Aleksander; Skjermo, Jorunn; Reitan, Kjell Inge. (2014) Assimilation of inorganic nutrients from salmon (Salmo salar) farming by the macroalgae (Saccharina latissima) in an exposed coastal environment: Implications for integrated multi-trophic aquaculture. Journal of Applied Phycology
Vitenskapelig artikkel
Wold, Per-Arvid; Holan, Astrid Buran; Øie, Gunvor; Attramadal, Kari; Bakke, Ingrid; Vadstein, Olav. (2014) Effects of membrane filtration on bacterial number and microbial diversity in marine recirculating aquaculture system (RAS) for Atlantic cod (Gadus morhua L.) production. Aquaculture
Vitenskapelig artikkel
Luong, Anh D; Laender, Frederik De; Olsen, Yngvar; Vadstein, Olav; Dewulf, Jo; Janssen, Colin R.. (2014) Inferring time-variable effects of nutrient enrichment on marine ecosystems using inverse modelling and ecological network analysis. Science of the Total Environment
Vitenskapelig artikkel
Chauton, Matilde Skogen; Vadstein, Olav; Reitan, Kjell Inge. (2014) Nye marine ressurser: Kan vi bruke mikroalger i fiskefor?. Norsk Fiskeoppdrett
Fagartikkel
Leiknes, Øystein; Striberny, Anja; Tokle, Nils Egil; Olsen, Yngvar; Vadstein, Olav; Sommer, Ulrich. (2014) Feeding selectivity of Calanus finmarchicus in the Trondheimsfjord. Journal of Sea Research
Vitenskapelig artikkel
Attramadal, Kari; Troung, Thi My Hanh; Bakke, Ingrid; Skjermo, Jorunn; Olsen, Yngvar; Vadstein, Olav. (2014) RAS and microbial maturation as tools for K-selection of microbial communities improve survival in cod larvae. Aquaculture
Vitenskapelig artikkel
Schryver, Peter De; Vadstein, Olav. (2014) Ecological theory as a foundation to control pathogenic invasion in aquaculture. The ISME Journal
Vitenskapelig artikkel
Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bakke, Ingrid. (2013) Gene regulation of Atlantic cod (Gadus morhua) larvae with focus on lipid digestion and phospholipid metabolism. Communications in agricultural and applied biological sciences
Vitenskapelig artikkel
Vadstein, Olav; Bergh, Øivind; Gatesoupe, Francois-Joel; Galindo-Villegas, Jorge; Mulero, Victoriano; Picchietti, Simona. (2013) Microbiology and immunology of fish larvae. Reviews in Aquaculture
Vitenskapelig oversiktsartikkel/review
Olsen, Lasse Mork; Ardelan, Murat Van; Hewes, Christopher D.; Holm-Hansen, Osmund; Reiss, Christian; Bizsel, Nihayet. (2013) Microbial biogeography during austral summer 2007 in the surface waters around the South Shetland Islands, Antarctica. Aquatic Microbial Ecology
Vitenskapelig artikkel
Mühlroth, Alice; Li, Keshuai; Røkke, Gunvor; Winge, Per; Olsen, Yngvar; Hohmann-Marriott, Martin Frank. (2013) Pathways of Lipid Metabolism in Marine Algae, Co-Expression Network, Bottlenecks and Candidate Genes for Enhanced Production of EPA and DHA in Species of Chromista. Marine Drugs
Vitenskapelig oversiktsartikkel/review
Bakke, Ingrid; Skjermo, Jorunn; Vo, Tu Anh; Vadstein, Olav. (2013) Live feed is not a major determinant of the microbiota associated with cod larvae (Gadus morhua). Environmental Microbiology Reports
Vitenskapelig artikkel
Gatesoupe, Francois-Joel; Covès, Denis; Ortega, Aurelio; Papandroulakis, Nikos; Vadstein, Olav; Gándara, Fernando de la. (2013) A spatiotemporal study of bacterial community profiles associated with Atlantic bluefin tuna larvae, Thunnus thynnus L., in three Mediterranean hatcheries. Aquaculture Research
Vitenskapelig artikkel
Chauton, Matilde Skogen; Olsen, Yngvar; Vadstein, Olav. (2013) Biomass production from the microalga Phaeodactylum tricornutum: Nutrient stress and chemical composition in exponential fed-batch cultures. Biomass & Bioenergy
Vitenskapelig artikkel
Olsen, Yngvar; Reinertsen, Helge; Sommer, Ulrich; Vadstein, Olav. (2013) Responses of biological and chemical components in North East Atlantic coastal water to experimental nitrogen and phosphorus addition - A full scale ecosystem study and its relevance for management. Science of the Total Environment
Vitenskapelig artikkel
Blancheton, Jean-Paul; Attramadal, Kari; Michaud, L.; d’Orbcastele, E. Roque; Vadstein, Olav. (2013) Insight into bacterial population in aquaculture systems and its implication. Aquacultural Engineering
Vitenskapelig oversiktsartikkel/review
Chauton, Matilde Skogen; Winge, Per; Brembu, Tore; Vadstein, Olav; Bones, Atle M.. (2013) Gene regulation of carbon fixation, storage, and utilization in the diatom phaeodactylum tricornutum acclimated to light/dark cycles. Plant Physiology
Vitenskapelig artikkel
Vadstein, Olav; Andersen, Tom; Reinertsen, Helge; Olsen, Yngvar. (2012) Carbon, nitrogen and phosphorus resource supply and utilisation for coastal planktonic heterotrophic bacteria in a gradient of nutrient loading. Marine Ecology Progress Series
Vitenskapelig artikkel
Attramadal, Kari; Øie, Gunvor; Størseth, Trond Røvik; Alver, Morten; Vadstein, Olav; Olsen, Yngvar. (2012) The effects of moderate ozonation or high intensity UV-irradiation on the microbial environment in RAS for marine larvae. Aquaculture
Vitenskapelig artikkel
Attramadal, Kari; Tøndel, Bjørnar; Salvesen, Ingrid; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2012) Ceramic clay reduces the load of organic matter and bacteria in marine fish larval culture tanks. Aquacultural Engineering
Vitenskapelig artikkel
Attramadal, Kari; Salvesen, Ingrid; Xue, Renyu; Øie, Gunvor; Størseth, Trond Røvik; Vadstein, Olav. (2012) Recirculation as a possible microbial control strategy in the production of marine larvae. Aquacultural Engineering
Vitenskapelig artikkel
Chauton, Matilde Skogen; Vadstein, Olav; Eggen, Marit; Tranell, Gabriella. (2012) Alger kan gi geniale solceller. Vitenskap-og-teknologi - NRK
Populærvitenskapelig artikkel
Vadstein, Olav; Olsen, Lasse Mork; Andersen, Tom. (2012) Prey-predator dynamics in rotifers: density-dependent consequences of spatial heterogeneity due to surface attachment. Ecology
Vitenskapelig artikkel
Forberg, Torunn; Vestrum, Ragnhild Inderberg; Arukwe, Augustine; Vadstein, Olav. (2012) Bacterial composition and activity determines host gene-expression responses in gnotobiotic Atlantic cod (Gadus morhua) larvae. Veterinary Microbiology
Vitenskapelig artikkel
Fjellheim, Anders; Playfoot, Karina Jane; Skjermo, Jorunn; Vadstein, Olav. (2012) Inter-individual variation in the dominant intestinal microbiota of reared Atlantic cod (Gadus morhua L.) larvae. Aquaculture Research
Vitenskapelig artikkel
Chauton, Matilde Skogen; Vadstein, Olav; Eggen, Marit; Tranell, Gabriella. (2012) Alger kan gi geniale solceller. Forskning.no
Populærvitenskapelig artikkel
Vadstein, Olav. (2011) Large variation in growth-limiting factors for marine heterotrophic bacteria in the Arctic waters of Spitsbergen (78 degrees N). Aquatic Microbial Ecology
Vitenskapelig artikkel
Forberg, Torunn; Arukwe, Augustine; Vadstein, Olav. (2011) A protocol and cultivation system for gnotobiotic Atlantic cod larvae (Gadus morhua L.) as a tool to study host microbe interactions. Aquaculture
Vitenskapelig artikkel
Forberg, Torunn; Arukwe, Augustine; Vadstein, Olav. (2011) Two strategies to unravel gene expression responses of host-microbe interactions in cod (Gadus morhua) larvae. Aquaculture Research
Vitenskapelig artikkel
Bakke, Ingrid; Schryver, Peter De; Boon, Nico; Vadstein, Olav. (2011) PCR-based community structure studies of Bacteria associated with eukaryotic organisms: A simple PCR strategy to avoid co-amplification of eukaryotic DNA. Journal of Microbiological Methods
Vitenskapelig artikkel
Olsen, Yngvar; Andersen, Tom; Gismervik, Ingrid; Vadstein, Olav. (2011) Marine heterotrophic bacteria, protozoan and metazoan zooplankton may experience protein N or mineral P limitation in coastal waters. Marine Ecology Progress Series
Vitenskapelig artikkel
Vadstein, Olav. (2011) Oppdrett og troverdighet.
Kronikk
Fjellheim, Anders; Klinkenberg, Geir; Skjermo, Jorunn; Aasen, Inga-Marie; Vadstein, Olav. (2010) Selection of candidate probionts by two different screening strategies from Atlantic cod (Gadus morhua L.) larvae. Veterinary Microbiology
Vitenskapelig artikkel
Attramadal, Kari; Buran, Astrid; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2010) Recirculation: Microbial Control Strategy For Intensive Marine Larviculture. Global Aquaculture Advocate
Fagartikkel
Hess-Erga, Ole-Kristian; Blomvågnes-Bakke, Bente; Vadstein, Olav. (2010) Recolonization by heterotrophic bacteria after UV irradiation or ozonation of seawater; a simulation of ballast water treatment. Water Research
Vitenskapelig artikkel
Saage, Andrea; Vadstein, Olav; Sommer, Ulrich. (2009) Feeding behaviour of adult Centropages hamatus (Copepoda, Calanoida): Functional response and selective feeding experiments. Journal of Sea Research
Vitenskapelig artikkel
Saage, Andrea; Altin, Dag; Vadstein, Olav; Sommer, Ulrich. (2008) Trophic position of Calanus finmarchicus (Copepoda, Calanoida) in the Trondheim Fjord. Journal of Sea Research
Vitenskapelig artikkel
Hess-Erga, Ole-Kristian; Attramadal, Kari; Vadstein, Olav. (2008) Biotic and abiotic particles protect marine heterotrophic bacteria during UV and ozone disinfection. Aquatic Biology
Vitenskapelig artikkel
Evjemo, Jan Ove; Tokle, Nils Egil; Vadstein, Olav; Olsen, Yngvar. (2008) Effect of essential dietary fatty acids on egg production and hatching success of the marine copepod Temora longicornis. Journal of Experimental Marine Biology and Ecology
Vitenskapelig artikkel
Fjellheim, Anders; Skjermo, Jorunn; Vadstein, Olav. (2008) Evaluation of probiotic bacteria for Atlantic cod (Gadhus morhua L.) larvae. World Aquaculture
Vitenskapelig artikkel
Skjermo, Jorunn; Fjellheim, Anders; Klinkenberg, Geir; Aasen, Inga Marie; Vadstein, Olav. (2007) Screening of probiotic bacteria for Atlantic cod larvae. Global Aquaculture Advocate
Populærvitenskapelig artikkel
Fjellheim, Anders; Playfoot, Karina Jane; Skjermo, Jorunn; Vadstein, Olav. (2007) Vibrionaceae dominates the microflora antagonistic towards Listonella anguillarum in the intestine of cultured Atlantic cod (Gadus morhua L.) larvae. Aquaculture
Vitenskapelig artikkel
Dooms, Stefania; Papakostas, Spiros; Hoffman, Stefan; Delbare, Daan; Dierckens, Kristof; Triantafyllidis, Alexander. (2007) Denaturing gradient gel electrophoresis (DGGE) as a tool for the characterisation of Brachionus sp. strains. Aquaculture
Vitenskapelig artikkel
Kostopoulou, Venetia; Vadstein, Olav. (2007) Growth performance of the rotifers Brachionus plicatilis, B. ‘Nevada’ and B. ‘Cayman’ under different food concentrations. Aquaculture
Vitenskapelig artikkel
Olsen, Yngvar; Andersen, Tom; Gismervik, Ingrid; Vadstein, Olav. (2007) Protozoan and metazoan zooplankton-mediated carbon flows in nutrient-enriched coastal planktonic communities. Marine Ecology Progress Series
Vitenskapelig artikkel
Attramadal, Kari; Olsen, Yngvar; Vadstein, Olav; Salvesen, Ingrid. (2007) Clay particles offer alternative water treatment in marine fish larvae tanks. Global Aquaculture Advocate
Populærvitenskapelig artikkel
Papakostas, Spiros; Dooms, Stefania; Triantafyllidis, Alexander; Deloof, Daphne; Kappas, Ilias; Dierckens, Kristof. (2006) Evaluation of DNA methodologies in identifying Brachionus species used in European hatcheries. Aquaculture
Vitenskapelig artikkel
Sundt-Hansen, Line E.B.; Olsen, Yngvar; Stibor, Herwig; Heldal, Mikal; Vadstein, Olav. (2006) Trophic cascades mediated by copepods, not nutrient supply rate, determine the development of picocyanobacteria. Aquatic Microbial Ecology
Vitenskapelig artikkel
Stibor, Herwig; Gelzleichter, Anna; Hantzsche, Florian; Sommer, Ulrich; Striebel, Maren; Vadstein, Olav. (2006) Combining dialysis and dilution techniques to estimate gross growth rate of phytoplankton and grazing by micro- and mesozooplankton in situ. Archiv für Hydrobiologie
Vitenskapelig artikkel
Olsen, Yngvar; Agusti, Susana; Andersen, T.; Duarte, Carlos; Gasol, J. M.; Gismervik, Ingrid. (2006) A comparative study of responses in planktonic food web structure and function in contrasting European coastal waters exposed to experimental nutrient addition. Limnology and Oceanography
Vitenskapelig artikkel
Attramadal, Kari; Salvesen, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2005) Water quality and microbial environment in a flow through and recirculation system for intensive rearing of cod larvae (Gadus morhua L.). Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Fjellheim, Anders; Playfoot, Karina; Aasen, Inga Marie; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2005) Evaluation of potential probiotics for cod larvae: Impact of initial screening strategy. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Kostopoulou, Venetia; Vadstein, Olav. (2005) Growth kinetics in three strains of the Brachionus plicatilis species complex. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Playfoot, Karina; Fjellheim, Anders; Vadstein, Olav. (2005) Isolation and characterisation of bacteria from the gut of cod larvae for consideration of probiotic effects. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Attramadal, Kari; Xue, Renyu; Salvesen, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2005) Microbial environment in a flow-through and a recirculating system for intensive rearing of cod larvae (Gadus morhua L.). Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Fjellheim, Anders; Playfoot, Karina; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2005) Characterization of the dominant and the antagonistic bacterial flora of cod (Gadus morhua L.) larvae reared under different conditions. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Skjermo, Jorunn; Salvesen, Ingrid; Fjellheim, Anders; Størseth, Trond; Vadstein, Olav. (2005) Probiotic approach for health management in juvenile production. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Salvesen, Ingrid; Attramadal, Kari; Vadstein, Olav. (2005) Interactions between bacteria and suspended particles in intensive larval culture: A comparison between microalgae, algal concentrate and clay. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Salvesen, Ingrid; Attramadal, Kari; Vadstein, Olav. (2005) Interactions between bacteria and suspended particles in intensive larval culture: A comparison between microalgae, algal concentrate and clay. Special Publications (European Aquaculture Society)
Vitenskapelig artikkel
Sommer, Ulrich; Hansen, Thomas; Blum, Olga; Holzner, Nina; Vadstein, Olav; Stibor, Herwig. (2005) Copepod and microzooplankton grazing in mesocosms fertilised with different Si : N ratios: no overlap between food spectra and Si : N influence on zooplankton trophic level. Oecologia
Vitenskapelig artikkel
Børsheim, Knut Yngve; Vadstein, Olav; Myklestad, Sverre M.; Reinertsen, Helge; Kirkvold, Ståle; Olsen, Yngvar. (2005) Photosynthetic algal production, accumulation and release of phytoplankton storage carbohydrates and bacterial production in a gradient in daily nutrient supply. Journal of Plankton Research
Vitenskapelig artikkel
Stibor, Herwig; Vadstein, Olav; Lippert, Bettina; Roederer, Wendy; Olsen, Yngvar. (2004) Calanoid copepods and nutrient enrichment determine population dynamics of the appendicularian Oikopleura dioica: a mesocosm experiment. Marine Ecology Progress Series
Vitenskapelig artikkel
Stibor, Herwig; Vadstein, Olav; Diehl, Sebastian; Gelzleichter, Anna; Hansen, Thomas; Hantzsche, Florian. (2004) Copepods act as a switch between alternative trophic cascades in marine pelagic food webs. Ecology Letters
Vitenskapelig artikkel
Vadstein, Olav; Stibor, Herwig; Lippert, Bettina; Loseth, K; Roederer, Wendy; Sundt-Hansen, Line E.B.. (2004) Moderate increase in the biomass of omnivorous copepods may ease grazing control of planktonic algae. Marine Ecology Progress Series
Vitenskapelig artikkel
Sommer, Ulrich; Hansen, T; Stibor, H; Vadstein, Olav. (2004) Persistence of phytoplankton responses to different Si:N ratios under mesozooplankton grazing pressure: a mesocosm study with NE Atlantic plankton. Marine Ecology Progress Series
Vitenskapelig artikkel
Vadstein, Olav; Olsen, Lasse Mork; Busch, A.; Andersen, Tom; Reinertsen, Helge. (2003) Is phosphorus limitation of heterotrophic bacteria and accumulation of degradable DOC a normal phenomenon in phosphorus limited systems? A microcosm study. FEMS Microbiology Ecology
Vitenskapelig artikkel
Gismervik, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2003) Marine mesocosm Zooplankton response to nutrients. Scope Newsletter
Sammendrag/Abstract
Reitan, Kjell Inge; Øie, Gunvor; Vadstein, Olav; Reinertsen, Helge. (2002) Response on scallop culture to enhanced nutrient supply by experimental fertilisation of a landlocked bay. Hydrobiologia
Vitenskapelig artikkel
Gismervik, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2002) Micro- and mesozooplankton response to enhanced nutrient input – a mesocosm study. Hydrobiologia
Vitenskapelig artikkel
Øie, Gunvor; Reitan, Kjell Inge; Vadstein, Olav; Reinertsen, Helge. (2002) Effect of nutrient supply on growth of blue mussels (Mytilus edulis) in a landlocked bay. Hydrobiologia
Vitenskapelig artikkel
Olsen, Lasse Mork; Reinertsen, Helge; Vadstein, Olav. (2002) Can phosphorus limitation inhibit dissolved organic carbon consumption in aquatic microbial food webs? A microcosm study. Microbial Ecology
Vitenskapelig artikkel
Gismervik, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2002) Micro- and mesozooplankton response to enhanced nutrient input - a mesocosm study. Hydrobiologia
Vitenskapelig artikkel
Makridis, Pavlos; Bergh, Øivind; Skjermo, Jorunn; Vadstein, Olav. (2001) Addition of bacteria bioencapsulated in Artemia metanauplii to a rearing system for halibut larvae. Aquaculture International
Vitenskapelig artikkel
Makridis, Pavlos; Fjellheim, Anders Jon; Skjermo, Jorunn; Vadstein, Olav. (2000) Colonization of the gut in first feeding turbot by bacterial strains added to the water or bioencapsulated in rotifers. Aquaculture International
Vitenskapelig artikkel
Salvesen, Ingrid; Vadstein, Olav. (2000) Evaluation of plate count methods for determination of maximum specific growth rate in mixed microbial communities, and its possible application for diversity assessment. Journal of Applied Microbiology
Vitenskapelig artikkel
Makridis, Pavlos; Fjellheim, Anders Jon; Skjermo, Jorunn; Vadstein, Olav. (2000) Control of the bacterial flora of Brachionus plicatilis and Artemia franciscana by incubation in bacterial suspensions. Aquaculture
Vitenskapelig artikkel
Vadstein, Olav. (2000) Strategies for avoiding bacterial infections: Beat them or join them. ASM news (Washington)
Vitenskapelig artikkel
Olsen, Atle Ivar; Olsen, Yngvar; Attramada, Yngve; Christie, K; Birkbeck, T.H.; Skjermo, Jorunn. (2000) Effects of short term feeding of microalgae on the bacterial flora associated with juvenile Artemia fransiscana. Aquaculture
Vitenskapelig artikkel
Salvesen, Ingrid; Vadstein, Olav. (2000) Evaluation of plate count methods for determination of maximum specific growth rate in mixed microbial communities, and its possible application for diversity assessment. Journal of Applied Microbiology
Vitenskapelig artikkel
Evjemo, Jan Ove; Vadstein, Olav; Olsen, Yngvar. (2000) Feeding and assimilation kinetics of Artemia franciscana fed Isochrysis galbana (clone T. Iso). Marine Biology
Vitenskapelig artikkel
Vadstein, Olav. (2000) Heterotrophic, planktonic bacteria and cycling of phosphorus: Phosphorus requirements, competitive ability and food web interactions. Advances in Microbial Ecology
Vitenskapelig artikkel
Vadstein, Olav. (2000) Dørum og universitetene.
Kronikk
Olsen, Yngvar; Vadstein, Olav; Sunde, Magne; Storøy, Jostein. (2000) Maten vår kommer fra havet. Norsk Fiskeoppdrett
Populærvitenskapelig artikkel
Makridis, Pavlos; Vadstein, Olav. (1999) Food size selectivity of Artemia fransiscana at three developmental stages. Journal of Plankton Research
Vitenskapelig artikkel
Skjermo, Jorunn; Vadstein, Olav. (1999) Techniques for microbial control in the intensive rearing of marine larvae. Aquaculture
Vitenskapelig artikkel
Salvesen, Ingrid; Skjermo, Jorunn; Vadstein, Olav. (1999) Growth of turbot (Scophthalmus maximus L.) during first feeding in relation to the proportion of r/K-strategists in the bacterial community of the rearing water. Aquaculture
Vitenskapelig artikkel
Ringo, E.; Vadstein, Olav. (1998) Colonization of Vibro pelagius and Aeromonas caviae in early developing turbot (Scophthalmus maximus L.) larvae. Journal of Applied Microbiology
Vitenskapelig artikkel
Vadstein, Olav. (1998) Evalution of competitive ability of two heterotrophic planktonic bacteria under phosphorus limitation. Aquatic Microbial Ecology
Vitenskapelig artikkel
Reitan, Kjell Inge; Natvik, C.M.; Vadstein, Olav. (1998) Drinking rate, uptake of bacteria and micro-algae in turbot larvae. Journal of Fish Biology
Vitenskapelig artikkel
Skjermo, J; Salvesen, I; Øie, G; Olsen, Yngvar; Vadstein, Olav. (1997) Microbially maturated water: a technique for selection of a non-opportunistic bacterial flora in water that may improve performance of marine larvae. Aquaculture International
Vitenskapelig artikkel
Skjermo, J.; Salvesen, G.; Olsen, Yngvar; Vadstein, Olav. (1997) Microbially matured water: a technique for selection of a non-opportunistic bacterial flora in water that may improve performance of marine larvae. Aquaculture International
Vitenskapelig artikkel
Salvesen, I.; Øie, G.; Vadstein, Olav. (1997) Surface disinfection of Atlantic halibut and turbot eggs with glutaraldehyde: evaluation of concentrations and contact times. Aquaculture International
Vitenskapelig artikkel
Salvesen, I.; Øie, G.; Vadstein, Olav. (1997) Surface disinfection of Atlantic halibut and turbot eggs with glutaraldehyde: evaluation of concentrations and contact times. Aquaculture International
Vitenskapelig artikkel
Gismervik, Ingrid; Andersen, Tom; Vadstein, Olav. (1996) Pelagic Food Webs and Eutrophication of Coastal Waters: Impact of Grazers on Algal Communities. Marine Pollution Bulletin
Vitenskapelig artikkel
Vadstein, Olav. (1996) The use of immunostimulation in marine larviculture: possibilities and challenges. Aquaculture
Vitenskapelig artikkel
Skjermo, Jorunn; Defoort, Thomas; Dehasque, Marleen; Espevik, Terje; Olsen, Yngvar; Skjåk-Bræk, Gudmund. (1995) Immunostimulation of juvenile turbot (Scophthalmus maximus L.) using an alginate with high mannuronic acid content administered via the live food organism Artemia. Fish and Shellfish Immunology
Vitenskapelig artikkel
Salvesen, Ingrid; Vadstein, Olav. (1995) Surface disinfection of eggs from marine fish: Evaluation of four chemicals. Aquaculture International
Vitenskapelig artikkel

Bøker

Fjellheim, Anders; Playfoot, Karina; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2005) Characterization of the dominant and the antagonistic bacterial flora of cod (Gadus morhua L.) larvae reared under different conditions. European Aquaculture Society European Aquaculture Society
Vitenskapelig antologi/Konferanseserie
Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. European Aquaculture Society European Aquaculture Society
Vitenskapelig antologi/Konferanseserie
Vadstein, Olav; Mo, T.A.; Bergh, Ø.. (2004) Microbial interactions, prophylaxis and diseases. Blackwell Publishing Blackwell Publishing
Fagbok

Del av bok/rapport

DeSchryver, Peter; Vadstein, Olav; Defoirdt, Tom; Sorgeloos, Patrick. (2022) Microbial management: a key concept for sustainable shrimp culture.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Bakke, Ingrid; Attramadal, Kari; Vestrum, Ragnhild Inderberg; Vadstein, Olav. (2019) Controlling Factors for Community Assembly in Developing Cod Larvae (Gadus morhua).
Faglig kapittel
Vestrum, Ragnhild Inderberg; Luef, Birgit; Forberg, Torunn; Bakke, Ingrid; Vadstein, Olav. (2018) Investigating fish larvae-microbe interactions in the 21st century: Old questions studied with new tools.
Faglig kapittel
Attramadal, Kari; Minniti, Giusi; Øie, Gunvor; Kjørsvik, Elin; Østensen, Mari-Ann; Bakke, Ingrid. (2014) Microbial control of the rearing water of larvae.
Faglig kapittel
Olsen, Yngvar; Tokle, Nils Egil; Vadstein, Olav. (2012) Hvordan forvalte vannmassene? Om samspillet mellom næringssalt-utslipp og det planktoniske økosystemet.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Vestrum, Ragnhild Inderberg; Forberg, Torunn; Vadstein, Olav. (2009) Impact of live versus dead bacteria on survival, growth, and gene expression in Atlantic cod (Gadus morhua) larvae.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Forberg, Torunn; Vadstein, Olav; Arukwe, Augustine. (2009) Strategies to unravel gene expression responses of host-microbe interactions in cod (Gadus morhua) larvae.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Vadstein, Olav. (2009) Interactions in the planktonic food web.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel
Vadstein, Olav; Mo, Tor Atle; Bergh, Øivind. (2004) Microbial interactions, prophylaxis and diseases.
Vitenskapelig Kapittel/Artikkel/Konferanseartikkel

Rapport

Mathivannan, Causia; Brembu, Tore; Vadstein, Olav. (2022) Functional studies of Group II silicanins in the diatom Thalassiosira pseudonana cell wall biomineralization. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Brembu, Tore; Vadstein, Olav; Sværen, Thea. (2022) Creation of Gene Knockouts for Silicic Acid Transporter-Associated Kinases and Study of Alternative Selection Markers in the Diatom Thalassiosira pseudonana. NTNU, Institutt for bioteknologi og matvitenskap NTNU, Institutt for bioteknologi og matvitenskap
Mastergradsoppgave
Palandre, Hugues; Brembu, Tore; Vadstein, Olav. (2021) Development of Molecular Tools in the Diatom Coscinodiscus wailesii. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Skisland, Maren Moen; Vadstein, Olav; Brembu, Tore. (2021) Functional studies of two silicon transporter-associated kinases in the diatom Thalassiosira pseudonana. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Harris, Ingrid Eskerud; Vadstein, Olav; Brembu, Tore. (2021) Functional studies of a family of ankyrin repeat-containing proteins in the diatom Thalassiosira pseudonana hypothesized to be involved in frustule morphogenesis. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Sjevelås, Christine; Vadstein, Olav; Brembu, Tore. (2021) Morphological changes in the frustule of Thalassiosira pseudonana by genetic manipulation and cultivation conditions. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Bentzen, Kristin Leonore Lillebo; Vadstein, Olav; Brembu, Tore. (2021) Functional studies of two genes encoding closely related group II silicanins in the diatom Thalassiosira pseudonana. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Vadstein, Olav; Rong, Ragnhild Lind. (2020) Microbial Quality of the copepod Acartia tonsa for use as live feed for marine larvae. NTNU NTNU
Mastergradsoppgave
Obrestad, Kathrine; Vadstein, Olav; Einum, Sigurd. (2020) The effect of gut microbiota on fitness in Daphnia magna. NTNU NTNU
Mastergradsoppgave
Årdal, Vilde; Vadstein, Olav; Brembu, Tore. (2020) Cell Wall Biomineralization in the Centric Diatom Thalassiosira pseudonana: Investigation of the Putative Role of Silicanin Tp23191 and the Impact of Microfilaments and Microtubules. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Jafari, Leila; Vadstein, Olav. (2020) The Effects of Protein Skimmer, Hydrogen Peroxide and Salinity on Water Quality in RAS. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Gresseth, Marita; Vadstein, Olav; Brembu, Tore. (2020) Investigating fluorescence in transformants expressing a silicanin-mNeonGreen fusion protein, and the effect of cytoskeleton inhibitors on frustule biosynthesis in the diatom Thalassiosira pseudonana. Norges teknisk-naturvitenskapelige universitet Norges teknisk-naturvitenskapelige universitet
Mastergradsoppgave
Næss, Camilla; Vadstein, Olav. (2007) Food selectivity and trophic position of mesozooplankton in the Trondheim fjord. NTNU, Institutt for biologi NTNU, Institutt for biologi
Mastergradsoppgave
Playfoot, Karina Jane; Vadstein, Olav. (2006) Isolation and characterisation of bacteria from the gut of cod larvae (Gadus morhua L.) for consideration of probiotic effects. NTNU, Institutt for biologi NTNU, Institutt for biologi
Mastergradsoppgave
Rokstad, Anne Mari Aukan; Skjermo, Jorunn; Skjåk-Bræk, Gudmund; Vadstein, Olav. (2000) Makrofagstudier hos piggvar og kveite etter immunstimulering med FMI in vitro og in vivo. SINTEF fiskeri og havbruk SINTEF fiskeri og havbruk
Rapport

Undervisning

Jeg underviser ikke regulære emner lenger.

Veiledning

Jeg tar ikke på meg ansvar for veiledning av nye studenter.

Formidling

2025

Vitenskapelig foredrag

Vadstein, Olav; Bohannan, Brendan J. M.; Bossier, Peter. (2025) Some thoughts on microbial management in aquaculture: status and prospects for larval rearing. 5th International Fish Microbiota workshop , Patras 2025-09-08 - 2025-09-10

2024

Poster

Fernando, Fernando; Hofstad, Kristine; Khadka, Sujan; Vadstein, Olav; Bakke, Ingrid. (2024) Mature Biofilters Safeguard Recirculating Aquaculture System (RAS) Against the Invasion by Opportunistic Bacteria. Fish & Shellfish Larviculture Symposium (LARVI) , Ostend 2024-09-09 - 2024-09-12
Vitenskapelig foredrag

Khadka, Sujan; Fernando, Fernando; Aasen, Anna; Vadstein, Olav; Bakke, Ingrid. (2024) Biofilter-biofilm communities: a key driver for structuring fish and rearing water microbiota in recirculating aquaculture systems. larvi 2024 (8th Fish & Shellfish Larviculture Symposium) , Ostend, Belgium 2024-09-09 - 2024-09-12
Vitenskapelig foredrag

Khadka, Sujan; Fernando, Fernando; Aasen, Anna; Vadstein, Olav; Bakke, Ingrid. (2024) The role of the biofilter in structuring the water and fish microbiomes in recirculating aquaculture systems. AQUA 2024 , Copenhagen 2024-08-26 - 2024-08-30

2023

Vitenskapelig foredrag

Bakke, Ingrid; Vestrum, Ragnhild Inderberg; Bugten, Anette Voll; Mathisen, Amalie johanne Horn; Vadstein, Olav. (2023) r-selection of the rearing water microbiota increases the similarity to the fish microbiota in aquaculture systems. The 4th International Fish Microbiota workshop , Wageningen 2023-09-06 - 2023-09-08
Vitenskapelig foredrag

Fiedler, Alexander Willi; Gundersen, Madeleine S.; Vo, Toan; Almaas, Eivind; Vadstein, Olav; Bakke, Ingrid. (2023) Phage therapy has little influence on the water microbiota while still preventing infection in Atlantic salmon. 4th International Fish microbiota Workshop , Wageningen 2023-09-06 - 2023-09-08
Poster

Gundersen, Madeleine S.; Fiedler, Alexander Willi; Bakke, Ingrid; Vadstein, Olav. (2023) Antibiotics caused major disturbances to a drinking water microbiome, while phage treatment had negligible effect. 10th IWA Microbial Ecology and Water Engineering Specialist Conference , Brisbane 2023-09-10 - 2023-09-14

2022

Poster

Gundersen, Madeleine S.; Morelan, Ian; Bakke, Ingrid; Andersen, Tom; Vadstein, Olav. (2022) Disturbances increase selection – whereas stability promotes stochastic assembly in bacterial communities. ISME18 , Lausanne 2022-08-15 -
Poster

Fiedler, Alexander Willi; Canny, Sol Gomez de la Torre; Drågen, Martha Kristine Rindarøy; Lorentsen, Eirik Degre; Bakke, Ingrid; Vadstein, Olav. (2022) The early gut and skin microbiota of Atlantic salmon yolk sac fry originating from two different source communities. ISME18 Konferanse , Lausanne 2022-08-14 - 2022-08-19
Vitenskapelig foredrag

Bugten, Anette Voll; Attramadal, Kari Johanne Kihle; Fossmark, Ragnhild Olsen; Rosten, Trond Waldemar; Vadstein, Olav; Bakke, Ingrid. (2022) The relationship between fish and water microbiota in RAS: influence of organic loading. 2022 International Conference on international Cooperation and Integration of Industry, Education, Research and Application for Future Ocean (Qingdao) , Digital 2022-11-27 - 2022-11-28
Vitenskapelig foredrag

Gundersen, Madeleine S.; Morelan, Ian; Andersen, Tom; Bakke, Ingrid; Vadstein, Olav. (2022) Bacterial community assembly during disturbances. NBS Contact Meeting 2022 , Tromsø 2022-02-10 - 2022-02-13
Vitenskapelig foredrag

Bugten, Anette Voll; Attramadal, Kari Johanne Kihle; Fossmark, Ragnhild Olsen; Rosten, Trond Waldemar; Vadstein, Olav; Bakke, Ingrid. (2022) The relationship between rearing water and fish microbiomes in RAS for smolt production: Impact of membrane filtration and organic loading. Aquaculture Europe , Rimini 2022-09-26 - 2022-09-30
Vitenskapelig foredrag

Huang, Zhitao; Risnes, Lea; Silva, Blanca Gonzalez; Østerhus, Stein Wold; Vadstein, Olav; Bakke, Ingrid. (2022) The potential application of a partial nitrification-anammox (PNA) biofilm-based process for nitrogen removal in RAS. Aquaculture Europe , Rimini 2022-09-26 - 2022-09-30
Vitenskapelig foredrag

Risnes, Lea; Huang, Zhitao; Silva, Blanca Gonzalez; Østerhus, Stein Wold; Vadstein, Olav; Bakke, Ingrid. (2022) Nitrogenfjerning: Adaptasjon av delvis nitrifisering og anaerob ammonium oksidasjon til RAS-konsentrasjoner. Tekset , Trondheim 2022-05-04 - 2022-05-05
Faglig foredrag

Gundersen, Madeleine S.; Vadstein, Olav; Schryver, Peter De; Attramadal, Kari. (2022) Legacy effects do not establish in Cod larvea or its rearing water. IPAMA seminar 2022 , Trondheim 2022-05-10 - 2022-05-11

2021

Intervju

Gonzalez, Ruby; Attramadal, Kari; Vadstein, Olav. (2021) Study says “no” to disinfection in European lobster larvae RAS. Hatchery International Hatchery International [Journal] 2021-11-01
Vitenskapelig foredrag

Nymark, Marianne; Volpe, Charlotte; Hafskjold, Marthe C.G.; Serif, Manuel; Vadstein, Olav; Bones, Atle M.. (2021) CRISPR/Cas9 as a tool for strain improvement in diatoms. Gene editing tools for sustainable bio-production , Digital webinar 2021-11-04 -
Vitenskapelig foredrag

Fiedler, Alexander Willi; Canny, Sol Gomez de la Torre; Drågen, Martha Kristine Rindarøy; Lorentsen, Eirik Degre; Vadstein, Olav; Bakke, Ingrid. (2021) The initial microbiome of Atlantic salmon (Salmo salar) yolk sac fry. The third international fish - microbiota workshop , Digital konferanse 2021-09-22 - 2021-09-24
Vitenskapelig foredrag

Vadstein, Olav; Fossmark, Raghnhild Olsen; Attramadal, Kari. (2021) Future microbial methods for controlling water quality in RAS. Aquanor , Trondheim 2021-08-23 - 2021-08-27
Vitenskapelig foredrag

Bakke, Ingrid; Coward, Eivind; Lorentsen, Eirik Degre; Vadstein, Olav. (2021) Temporal and interindividual variation in hindgut microbiomes among four codfish species in the subfamily Gadinae. The third international fish - microbiota workshop , Digitalt møte på zoom 2021-09-22 - 2021-09-24

2020

Vitenskapelig foredrag

Navada, Sharada; Gaumet, Frederic; Tveten, Ann-Kristin; Kolarevic, Jelena; Vadstein, Olav. (2020) Seeding as a salinity acclimation strategy in nitrifying bioreactors. Smolt Conference of the Future , Sunndalsøra (virtual) 2020-10-21 -
Poster

Gundersen, Madeleine Stenshorne; Morelan, Ian; Andersen, Tom; Bakke, Ingrid; Vadstein, Olav. (2020) The effect of periodical disturbances on selection and drift in bacterial communities. Microbiota and Health 2020-11-30 - 2020-12-03
Poster

Pettersen, Jakob Peder; Vadstein, Olav; Almaas, Eivind. (2020) What do co-occurence network actually tell us? A case study. NetSci 2020 , Online 2020-09-14 - 2020-09-27

2019

Poster

Dunker, Karen; Canny, Sol Gomez de la Torre; Nordgård, Catherine Taylor; Bakke, Ingrid; Vadstein, Olav; Sletmoen, Marit. (2019) Glycan-based molecular interactions and their role in bacterial surface adhesion. International symposium on glycoconjugates , Milano 2019-08-25 - 2019-08-31
Vitenskapelig foredrag

Nymark, Marianne; Sharma, Amit Kumar; Volpe, Charlotte; Flo, Snorre; Hafskjold, Marthe C.G.; Kirst, Henning. (2019) A systems analysis of the light harvesting complex in diatoms. 14th Nordic Photosynthesis Conference , Turku 2019-05-22 - 2019-05-24
Poster

Messemer, Annika; Hafskjold, Marthe Caroline Grønbech; Winge, Per; Vadstein, Olav; Brembu, Tore. (2019) Functional studies of a diatom-specific cell wall synthesis protein. 7th European Phycological Congress , Zagreb 2019-08-25 - 2019-08-30
Vitenskapelig foredrag

Fossmark, Ragnhild Olsen; Attramadal, Kari; Rosten, Trond Waldemar; Koseto, Deni; Nesje, Jenny; Bakke, Ingrid. (2019) Microbial community dynamics in recirculating aquaculture systems rearing Atlantic salmon parr (Salmo salar) with reduced organic loading through membrane filtration. Aquaculture Europe , Berlin 2019-10-07 - 2019-10-10
Vitenskapelig foredrag

Fossmark, Ragnhild Olsen; Vadstein, Olav; Nordøy, Kristian; Attramadal, Kari. (2019) Salinity as a driver for microbial community succession in the gut of Atlantic salmon (Salmo salar). 2nd International fish microbiota workshop , Eugene 2019-09-03 - 2019-09-05
Vitenskapelig foredrag

Fossmark, Ragnhild Olsen; Nordøy, Kristian; Dahle, Stine Veronica Wiborg; Vadstein, Olav; Østerhus, Stein Wold; Attramadal, Kari. (2019) Increase in salinity as a driver for microbial community succession in RAS for Atlantic salmon (Salmo salar) smolt production. NordicRAS , Berlin 2019-10-07 - 2019-10-08
Vitenskapelig foredrag

Navada, Sharada; Gaumet, Frederic; Vadstein, Olav; Spanu, Claudia; Mikkelsen, Øyvind; Kolarevic, Jelena. (2019) Improving salinity adaptation in nitrifying bioreactors by seawater priming. AE2019 , Berlin 2019-10-08 - 2019-10-10
Vitenskapelig foredrag

Navada, Sharada; Sebastianpillai, Marianna; Gaumet, Frederic; Vadstein, Olav; Fossmark, Ragnhild Olsen; Mikkelsen, Øyvind. (2019) Salinity change strategies for biofilters in RAS for Atlantic salmon (Salmo salar). NordicRAS , Berlin 2019-10-07 - 2019-10-08
Vitenskapelig foredrag

Bakke, Ingrid; Mathisen, Amalie johanne Horn; Canny, Sol Gomez de la Torre; Olsen, Yngvar; Vadstein, Olav. (2019) Effects of host genetics and water microbiota on the colonization of gut in yolk sac salmon fry. 2nd International Fish Microbiota workshop , Eugene, Oregon 2019-09-03 - 2019-09-05
Poster

Navada, Sharada; Vadstein, Olav; Gaumet, Frederic; Tveten, Ann-Kristin; Spanu, Claudia; Mikkelsen, Øyvind. (2019) Improving salinity adaptation of nitrifying biofilms with seawater priming. 8th IWA Microbial Ecology & Water Engineering Specialist Conference (MEWE) , Hiroshima 2019-11-17 - 2019-11-20
Vitenskapelig foredrag

Navada, Sharada; Vadstein, Olav; Tveten, Ann-Kristin; Terjesen, Bendik Fyhn; Mota, Vasco C.; Gaumet, Frederic. (2019) Influence of rate of salinity increase on nitrifying biofilms. 8th IWA Microbial Ecology & Water Engineering Specialist Conference (MEWE) , Hiroshima 2019-11-17 - 2019-11-20
Faglig foredrag

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Forberg, Torunn; Winge, Per; Gundersen, Madeleine; Vadstein, Olav. (2019) Host-microbiota interactions in Atlantic cod larvae. Lunsjeminar Sintef 2019-11-19 -
Faglig foredrag

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Vadstein, Olav; Bakke, Ingrid. (2019) The composition of the microbiota associated with cod larvae (Gadus morhua) is affected by changes in the environmental microbiota. 2nd International Fish Microbiota Workshop , Eugene 2019-09-02 - 2019-09-05
Faglig foredrag

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Forberg, Torunn; Winge, Per; Gundersen, Madeleine; Vadstein, Olav. (2019) Host-microbiota interactions in Atlantic cod larvae. Lunsjseminar IBT 2019-11-13 -
Vitenskapelig foredrag

Vestrum, Ragnhild Inderberg; Truong, Thi My Hanh; Attramadal, Kari; Bakke, Ingrid; Vadstein, Olav. (2019) The effect of rearing water treatments on the microbiota associated with cod larvae. NBS kontaktmøte 2019 , Røros 2019-01-24 - 2019-01-27
Intervju

Paridon, Bradley van; Vadstein, Olav. (2019) Microbes in Ballast Water Show Where a Ship Came From. Hakai Magazine, Coastal science and societies Hakai Magazine, Coastal science and societies [Internet] 2019-04-09
Vitenskapelig foredrag

Vadstein, Olav. (2019) How relevant is the core microbiota concept for fish. 2nd International Fish Microbiota workshop , Eugene, Oregon 2019-09-03 - 2019-09-05
Poster

Sebastianpillai, Marianna; Navada, Sharada; Fossmark, Ragnhild Olsen; Vadstein, Olav. (2019) Nitrifying Capacity and Microbial Community Structure during Start-up of Freshwater and Brackish water Moving Bed Biofilm Reactors in Recirculating Aquaculture Systems. NBS Contact Meeting , Røros 2019-01-24 - 2019-01-27
Poster

Brembu, Tore; Messemer, Annika; Hafskjold, Marthe; Winge, Per; Vadstein, Olav. (2019) Analysis of short-term transcriptome responses to silicon addition in Thalassiosira pseudonana. The molecular life of diatoms 2019 , Norwich 2019-07-15 - 2019-07-18
Faglig foredrag

Vadstein, Olav. (2019) Playing domino with Arctic planktonic food webs - and beaten by Psychromonadaceae. IBT's weekly Department lunch , IBT's lunch room, NV Faculty, NTNU, Gløshaugen 2019-01-09 -
Poster

Volpe, Charlotte; Llansola-Portoles, Manuel J.; Nymark, Marianne; Winge, Per; Robert, Bruno; Büchel, Claudia. (2019) ANALYSIS OF THE ALB3B KNOCK OUT LINES OF THE DIATOM PHAEODACTHYLUM TRICORNUTUM BASED ON RESONANCE RAMAN SPECTROSCOPY. EPC7 , Zagreb 2019-08-25 - 2019-08-30

2018

Faglig foredrag

Wang, Xinxin; Chauton, Matilde Skogen; Vadstein, Olav; Reitan, Kjell Inge. (2018) Microalgae as a feed source for Aquaculture: effect of cultivation conditions on Lipid and Fatty acid composition. AQUA 2018 2018-08-26 - 2018-08-29
Vitenskapelig foredrag

Vadstein, Olav; Ertesvåg, Helga; Aasen, Inga Marie; Nymark, Marianne. (2018) Microbes as production organisms of DHA/EPA: The need for strain improvement. AQUA 2018 , Montpellier 2018-09-25 - 2018-09-29
Faglig foredrag

Vestrum, Ragnhild Inderberg; Truong, Thi My Hanh; Attramadal, Kari; Bakke, Ingrid; Vadstein, Olav. (2018) The effect of rearing water treatments on the microbiota associated with cod larvae. Microbial ecology in applied and natural systems , Bergen 2018-05-28 - 2018-05-29
Vitenskapelig foredrag

Fossmark, Ragnhild Olsen; Attramadal, Kari; Bakke, Ingrid; Vadstein, Olav. (2018) Microbial Ecology in Aquaculture - Effect of organic matter on the microbial community dynamics and stability in land-based recirculating aquaculture systems for Atlantic Salmon parr (Salmo salar). Microbial Ecology in Applied and Natural Systems Workshop , Bergen 2018-05-28 - 2018-05-29
Poster

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.. (2018) Rearing water treatment influences the microbiota and transcript profiles of cod larvae. Nordic RAS workshop , Oslo, NMBU 2018-11-19 - 2018-11-20
Vitenskapelig foredrag

Nymark, Marianne; Volpe, Charlotte; Hafskjold, Marthe; Winge, Per; Sharma, Amit Kumar; Chauton, Matilde Skogen. (2018) Genredigering av marine mikroalger - Kan endringer av algenes lyshøstingsegenskaper øke produktiviteten?. HAVBRUK 2018 , Oslo 2018-04-18 - 2018-04-20
Vitenskapelig foredrag

Aasen, Inga Marie; Ertesvåg, Helga; Heggeset, Tonje Marita Bjerkan; Vadstein, Olav; Sevgeli, Huseyin. (2018) Production of heterotrophic microorganisms for use as a source of long-chain omega3 fatty acids in aquafeed. Aqua 2018 – World Aquaculture Society Conference , Montpellier 2018-08-25 - 2018-08-29
Vitenskapelig foredrag

Aasen, Inga Marie; Ertesvåg, Helga; Heggeset, Tonje Marita Bjerkan; Vadstein, Olav; Broli, Gunn; Sevgeli, Huseyin. (2018) Heterotrofe mikroorganismer som kilde for omega3-fettsyrer i fiskefôr. Havbruk 2018 2018-04-18 - 2018-04-20
Vitenskapelig foredrag

Jalili, Mahsa; Jin, Yang; Olsen, Yngvar; Bones, Atle M.; Østensen, Mari-Ann; Vadstein, Olav. (2018) Dietary lipids can modify the immune-related transcriptome in Atlantic salmon: a model organism. 5th European Congress of Immunology , Amsterdam 2018-09-02 - 2018-09-06
Intervju

Ley, Colin; Vadstein, Olav. (2018) RAS research targets ‘friendly’ bacteria. Hatchery International Hatchery International [Journal] 2018-07-01

2017

Poster

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.. (2017) Rearing water treatment influences the microbiota and trancript profiles of cod larvae. Larvi 2017 , Gent 2017-09-04 - 2017-09-07
Vitenskapelig foredrag

Vadstein, Olav. (2017) Managing the microbial world of larvae: an ecological approach. larvi 2017 , Gent 2017-09-04 - 2017-09-07
Intervju

Vadstein, Olav; Arvola, Benjamin. (2017) Den grønne gugga i fjæra kan ha en naturlig årsak. Finnmarken Finnmarken [null] 2017-07-17
Faglig foredrag

Wang, Xinxin; Nymark, Marianne; Chauton, Matilde Skogen; Aasen, Inga Marie; Vadstein, Olav; Reitan, Kjell Inge. (2017) Marine microalgae: Resource for protein and EPA/DHA for use in aquafeed. Future feeds and ingredients , AquaNor 2017-08-17 - 2017-08-17
Faglig foredrag

Wang, Xinxin; Chauton, Matilde Skogen; Reitan, Kjell Inge; Vadstein, Olav; Nymark, Marianne. (2017) Marine microalgae: resource for protein and EPA or DHA use in aquafeed. AquaNor , NTNU Sealab 2017-08-14 - 2017-08-18
Poster

Brembu, Tore; Chauton, Matilde Skogen; Winge, Per; Bones, Atle M.; Vadstein, Olav. (2017) Dynamic responses to silicon in Thalasiossira pseudonana - Identification, characterisation and classification of signature genes and their corresponding motifs. The IVth International Conference “Molecular Life of Diatoms” , Kobe 2017-07-09 - 2017-07-13
Poster

Wang, Xinxin; Chauton, Matilde Skogen; Vadstein, Olav; Reitan, Kjell Inge; Li, Keshuai. (2017) INFLUENCE OF NITROGEN LIMITATION ON LIPID AND FATTY ACID COMPOSITION OF FOUR MARINE MICROALGAE SPECIES. Aquaculture Europe 17 , Dubrovnik, 2017-10-18 - 2017-10-20
Vitenskapelig foredrag

Hoel, Sunniva; Vadstein, Olav; Jakobsen, Anita Nordeng. (2017) Viability of environmental strains of mesophilic Aeromonas spp. in Atlantic salmon (salmo salar) using an experimental model of nigiri sushi. WEFTA 2017 2017-10-09 - 2017-10-13
Vitenskapelig foredrag

Bakke, Ingrid; Attramadal, Kari; Vadstein, Olav. (2017) Influence of environmental factors on the microbiota associated with developing cod larvae (Gadus morhua). 1st International Fish-Microbiota Workshop , Trondheim 2017-06-19 - 2017-06-21
Vitenskapelig foredrag

DeSchryver, Peter; Attramadal, Kari; Vadstein, Olav; Sorgeloos, Patrick. (2017) Microbial management in marine fish and crustacean larviculture. larvi 2017 , Gent 2017-09-04 - 2017-09-07
Vitenskapelig foredrag

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.. (2017) Rearing water microbiota influences the microbiota and transcript profiles of cod larvae. NBS Contact Meeting 2017 , Gol 2017-01-19 - 2017-01-22
Vitenskapelig foredrag

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.. (2017) Rearing water microbiota influences the microbiota and transcript profiles of cod larvae. 1st International Fish-Microbiota Workshop , Trondheim 2017-06-19 - 2017-06-21

2016

Vitenskapelig foredrag

Rojas-Tirado, Paula A.; Pedersen, Per Bovbjerg; Vadstein, Olav; Pedersen, Lars-Flemming. (2016) Effects of feed loading on microbial water quality in RAS. 11th International Conference on Recirculating Aquaculture 2016-08-19 - 2016-08-21
Poster

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.. (2016) Rearing water treatment influences the microbiota and transcript profiles of cod larvae. International Symposium on Microbial Ecology ISME 16 2016-08-21 - 2016-08-26
Vitenskapelig foredrag

Forberg, Torunn; Vestrum, Ragnhild Inderberg; Luef, Birgit; Winge, Per; Østensen, Mari-Ann; Olsen, Yngvar. (2016) Host-microbe interactions in cod larvae. NBS seminar 2016 , Åre 2016-04-06 - 2016-04-07
Poster

Vadstein, Olav; Silva, Blanca Magdalena Gonzalez; Jonassen, Kjell Rune; Østgaard, Kjetill; Bakke, Ingrid. (2016) Effect of salinity and salinity change on microbial community assembly and nitrification activity. International Symposium on Microbial Ecology ISME 16 2016-08-21 - 2016-08-26
Poster

Bakke, Ingrid; Nordgård, Anna Synnøve Røstad; Bergland, Wenche Hennie; Vadstein, Olav; Mironov, Vladimir; Østgaard, Kjetill. (2016) Microbial community dynamics in anaerobic digestion at high ammonia concentrations. International Symposium on Microbial Ecology ISME 16 , Montreal 2016-08-21 - 2016-08-26
Vitenskapelig foredrag

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.. (2016) Rearing water microbiota influences the microbiota and transcript profiles of cod larvae. NBS seminar 2016 , Åre 2016-04-06 - 2016-04-07

2015

Vitenskapelig foredrag

Holan, Astrid Buran; Kolarevic, Jelena; Fossmark, Reidar; Bakke, I.; Vadstein, Olav; Terjesen, Bendik Fyhn. (2015) Evaluation of membrane treatment effect on water quality in recrculating aquaculture systems (RAS) for post-smolts (Salmo salar). In Book of abstracts, p. 23. 3d Workshop on Recirculating Aquaculture Systems , Molde 2015-09-30 - 2015-10-01
Vitenskapelig foredrag

Bakke, I.; Åm, A.L.; Kolarevic, Jelena; Ytrestøyl, Trine; Vadstein, Olav; Attramadal, Kari. (2015) Microbial community dynamics in three RAS with different salinities for production of Atlantic postsmolt. In Book of abstracts, p. 32. 3d Workshop on Recirculating Aquaculture Systems , Molde 2015-09-30 - 2015-10-01
Programdeltagelse

Warholm, Ingvill; Vadstein, Olav. (2015) Schrødingers katt: De usynlige hjelperne. NRK1 NRK1 [null] 2015-11-26
Vitenskapelig foredrag

Hoel, Sunniva; Vadstein, Olav; Jakobsen, Anita Nordeng. (2015) Effect of Storage Temperature on Bacterial Growth Rates and Community Structure in Fresh Retail Sushi. Food Chemistry and Technology 2015 , San Francisco 2015-11-16 - 2015-11-18
Intervju

Bruheim, Per; Vadstein, Olav. (2015) Nå kan du studere ølbrygging på NTNU. Forskning.no Forskning.no [null] 2015-04-10
Programdeltagelse

Bruheim, Per; Vadstein, Olav. (2015) Utdanning og forskning innen ølbrygging ved NTNU. NRK1 Scrødingers katt NRK1 Scrødingers katt [null] 2015-04-10
Vitenskapelig foredrag

Bakke, Ingrid; Åm, Ann-Louise; Kolarevic, Jelena; Ytrestøyl, Trine; Vadstein, Olav; Terjesen, Bendik Fyhn. (2015) Microbial community dynamics in three RAS with different salinities for production of Atlantic postsmolt. The 3rd NordicRAS workshop on RAS , Molde 2015-09-30 - 2015-10-01
Vitenskapelig foredrag

Forberg, Torunn; Vadstein, Olav; Winge, Per; Bones, Atle M.; Luef, Birgit; Østensen, Mari-Ann. (2015) Development of a gnotobiotic system for Atlantic cod (Gadus morhua) larvae to study host-microbe interactions. Gut Microbiota Modulation of Host Physiology: The Search for mechanism , Keystone, Colorado 2015-03-01 - 2015-03-06
Faglig foredrag

Vadstein, Olav. (2015) The ecologist role in developing tools for management: both sides of the problem. 1st Annual Hjort Open Science Seminar , 21 May 2015 2015-05-21 - 2015-05-21
Vitenskapelig foredrag

Vadstein, Olav; Attramadal, Kari; Bakke, Ingrid; Olsen, Yngvar. (2015) Beneficial Fish-Microbe Interactions: The Fourth Dimension of RAS. 3rd NordicRAS Workshop on Recirculating Aquaculture Systems , Molde 2015-09-30 - 2015-10-01
Poster

Mühlroth, Alice; Bones, Atle M.; Vadstein, Olav; Hohmann-Marriott, Martin; El-Assimi, Aimen; Røkke, Gunvor. (2015) Investigation of transcriptional regulation in microalgae Nannochloropsis oceanica CCMP1779 under induced TAG accumulation by phosphate deficiency. EPC6 european phylogeny congress 6 2015-08-23 - 2015-08-28
Faglig foredrag

Holan, Astrid Buran; Kolarevic, Jelena; Terjesen, Bendik Fyhn; Fossmark, Ragnhild Olsen; Bakke, Ingrid; Vadstein, Olav. (2015) Evaluation of membrane treatment effect on water quality in RAS for Atlantic salmon post-smolts. NordicRAS , Molde 2015-09-30 - 2015-10-01
Faglig foredrag

Silva, Blanca Magdalena Gonzalez; Jonassen, Kjell Rune; Bakke, Ingrid; Østgaard, Kjetill; Vadstein, Olav. (2015) Nitrification at different salinities: biofilm community composition and physiological plasticity. IWA Nutrient Removal and Recovery 2015: Moving innovation into practice 2015-05-18 - 2015-05-21
Faglig foredrag

Silva, Blanca Magdalena Gonzalez; Rønning, Are Johan; Andreassen, Ingrid Krogrud; Bakke, Ingrid; Østgaard, Kjetill; Cervantes, Francisco J.. (2015) Adaptation of a freshwater Anammox consortium to marine conditions to achieve nitrogen removal. 14th World Congress on Anaerobic Digestion 2015-11-15 - 2015-11-18

2014

Intervju

Vadstein, Olav. (2014) Nytt virus funnet: - Angriper hjernen til friske mennesker Helsemyndighetene: - Oppsiktsvekkende. VG VG [null] 2014-11-18
Vitenskapelig foredrag

Forberg, Torunn; Vadstein, Olav. (2014) Bruk av bakteriefrie torsk for å studere samspillet mellom vert og bakterier. Programkonferanse Havbruk , Tromsø 2014-03-31 - 2014-04-02
Vitenskapelig foredrag

Forberg, Torunn; Vadstein, Olav. (2014) Development of a Gnotobiotic system for Atlantic cod (Gadus morhua L.) to study host responses of microbiota. NBS kontaktmøte , Røros 2014-01-23 - 2014-01-26
Poster

Vestrum, Ragnhild Inderberg; Forberg, Torunn; Vadstein, Olav. (2014) Impact of live versus dead bacteria on survival, growth, and gene expression in Atlantic cod (Gadus morhua) larvae. NBS Contact Meeting 2014 , Røros 2014-01-23 - 2014-01-26
Poster

Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bakke, Ingrid. (2014) GENE REGULATION OF ATLANTIC COD (GADUS MORHUA) LARVAE WITH FOCUS ON LIPID DIGESTION AND PHOSPHOLIPID METABOLISM. Aquaculture Europe 2014 2014-10-14 - 2014-10-17
Intervju

Reitan, Kjell Inge; Vadstein, Olav. (2014) La laksen spise alger. Dagens Næringsliv Dagens Næringsliv [null] 2014-04-25
Poster

Vestrum, Ragnhild Inderberg; Forberg, Torunn; Bakke, Ingrid; Vadstein, Olav. (2014) Quorum sensing-hemmende bakterier beskytter torskelarver mot Vibrio anguillarum infeksjon. Programkonferansen HAVBRUK 2014 , Tromsø 2014-03-31 - 2014-04-02
Intervju

Vadstein, Olav. (2014) Oppstart av prosjekt ang mikroorganismer som produsenter av omega3-fettsyrer. NRK Radio - God ettermiddag Trøndelag NRK Radio - God ettermiddag Trøndelag [null] 2014-11-19

2013

Poster

Olsen, Lasse Mork; Ardelan, Murat Van; Holm-Hansen, Osmund; Bizsel, Nihayet; Hewes, Christopher D.; Reiss, Christian. (2013) Microbial communities in the surface water masses surrounding the South Shetland Islands, Antarctica. ASLO Aquatic Sciences Meeting , New Orleans 2013-02-17 - 2013-02-22
Faglig foredrag

Vadstein, Olav. (2013) Alger som nyttevekster. Norsk Botanisk Forening , Suhmhuset, NTNU Vitenskapsmuseet, Elvegata 6, Trondheim. 2013-10-07 - 2013-10-07
Intervju

Vadstein, Olav; Olsen, Yngvar. (2013) Trenger et kraftløft for fôr. Fiskaren Fiskaren [null] 2013-08-14
Poster

Sousoni, D.; Bakke, Ingrid; Dahle, S.W.; Vadstein, Olav; Skjermo, Jorunn. (2013) Differences in the microbiota of cultivated microalgae and algal paste used in larviculture. AQUACULTURE EUROPE `13, , Trondheim 2013-08-09 - 2013-08-12
Poster

Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bakke, Ingrid. (2013) GENE REGULATION OF ATLANTIC COD (GADUS MORHUA) LARVAE WITH FOCUS ON LIPID DIGESTION AND PHOSPHOLIPID METABOLISM. LARVI 2013 6th fish & shellfish larviculture symposium , Ghent 2013-09-02 - 2013-09-05
Poster

Brembu, Tore; Chauton, Matilde Skogen; Winge, Per; Vadstein, Olav; Bones, Atle M.. (2013) Gene regulation of carbon fixation, storage and utilisation in Phaeodactylum tricornutum acclimated to light/dark cycles. Molecular Life of Diatoms , Paris 2013-06-25 - 2013-06-28
Vitenskapelig foredrag

Attramadal, Kari; Øie, Gunvor; Kjørsvik, Elin; Minniti, Giusi; Olsen, Yngvar; Skjermo, Jorunn. (2013) Control of the selective pressure on microbes in rearing tanks through manipulation of the incoming water increases survival of marine fish larvae. Conference Larvi 2013 , Gent 2013-09-02 - 2013-09-05
Vitenskapelig foredrag

Forberg, Torunn; Vadstein, Olav. (2013) Lessons learned from gnotobiotic systems on the effect of bacteria on growth, survival, and gene expression in marine larvae. Conference Larvi 2013 , Gent 2013-09-02 - 2013-09-05
Vitenskapelig foredrag

Schryver, Peter De; Vadstein, Olav. (2013) The application of ecological theory for microbial control in aquaculture. Conference Larvi 2013 , Gent 2013-09-02 - 2013-09-05
Vitenskapelig foredrag

Bakke, Ingrid; Skjermo, Jorunn; Attramadal, Kari; Coward, Eivind; Kjørsvik, Elin; Vo, Tu Anh. (2013) Bacterial community assembly in developing cod larvae (Gadus morhua). Conference Larvi 2013 , Gent 2013-09-02 - 2013-09-05
Vitenskapelig foredrag

Vadstein, Olav. (2013) Kiselalger i solcelle- og materialforskning. Norsk Algeforening sitt årsmøte “Alger til nytte”, , Bergen 2013-05-23 - 2013-05-23
Poster

Olsen, L.M.; Ardelan, M.V.; Holm-Hansen, O.; Bizsel, N.; Hewes, C.; Reiss, C.. (2013) Microbial Communities In The Surface Water Masses Surrounding The South Shetland Islands, Antarctica. ASLO Aquatic sciences meeting , New Orleans, Louisiana 2013-02-17 - 2013-02-22
Vitenskapelig foredrag

Vadstein, Olav; Olsen, Yngvar; Attramadal, Kari; Bakke, Ingrid; Forberg, Torunn; Skjermo, Jorunn. (2013) The microbial world of cultured larvae: a concept model. “Aquaculture conference: To the Next 40 Years of Sustainable Global Aquaculture”. , Las Palmas, Gran Canaria 2013-11-03 - 2013-11-07
Intervju

Vadstein, Olav; Olsen, Yngvar. (2013) Et godt kinderegg. Fiskeribladetfiskaren Fiskeribladetfiskaren [null] 2013-08-14

2012

Vitenskapelig foredrag

Forberg, Torunn; Vadstein, Olav. (2012) Gnotobiotic systems for Atlantic cod Gadus morhua to study host responses to microbiota: system development and applications. Aqua 2012 , Praha 2012-09-01 - 2012-09-05
Vitenskapelig foredrag

Bakke, Ingrid; Skjermo, Jorunn; Vo, Tu Anh; Vadstein, Olav. (2012) Diet is not a good tool for steering microbiota of cod larvae. Aqua 2012 , Praha 2012-09-01 - 2012-09-05
Vitenskapelig foredrag

Flo, Trude Helen; Steigedal, Magnus; Damås, Jan Kristian; Strong, Roland; Rognstad, Øyvind Bakken; Mobley, Harry LT. (2012) Lipocalin 2 in protection of mucosal surfaces and shaping of intestinal microflora. EMBO|EMBL Symposium : New Perspectives on Immunity to Infection , Heidelberg 2012-05-19 - 2012-05-22
Vitenskapelig foredrag

Attramadal, Kari; Truong, T.H.H.; Bakke, Ingrid; Vadstein, Olav. (2012) RAS and microbial maturation as tools of K-selection of microbial communities improve survival in cod larvae. AQUA2012, September 1-5, Prague, Czech Republic. , Prague 2012-09-01 - 2012-09-05
Vitenskapelig foredrag

Aasen, Inga Marie; Borgos, Sven Even F.; Giatsis, C.; Verdegem, M.J.C.; Gatesoupe, F.J.; Bakke, Ingrid. (2012) Profiling gut metabolites as response to diet and environmental microbiota. AQUA2012 , Prague 2012-09-01 - 2012-09-05
Vitenskapelig foredrag

Vadstein, Olav; Bossier, P.. (2012) Microbial management in aquaculture. AQUA2012 , Prague 2012-09-01 - 2012-09-05
Faglig foredrag

Vadstein, Olav; Bakke, Ingrid. (2012) Miljøbioteknologi. Campusbesøk , NTNU, Trondheim 2012-02-15 - 2012-02-15
Vitenskapelig foredrag

Attramadal, Kari; Truong, Thi My Hanh; Bakke, Ingrid; Vadstein, Olav; Skjermo, Jorunn; Olsen, Yngvar. (2012) RAS AND MICROBIAL MATURATION AS TOOLS OF K-SELECTION OF MICROBIAL COMMUNITIES IMPROVE SURVIVAL IN COD LARVAE. Aqua 2012 , Praha 2012-09-04 - 2012-09-04

2011

Vitenskapelig foredrag

Vadstein, Olav; Skjermo, Jorunn; Attramadal, Kari; Bakke, Ingrid; Olsen, Yngvar. (2011) Microbial Resource Management for improved viability of marine fish larvae by community level selection of microbiota. 1st International Symposium on Microbial Resource Management in Biotechnology (MRM 2011) Concepts and Applications , University of Ghent, Ghent 2011-06-30 - 2011-07-01
Vitenskapelig foredrag

Blancheton, Jean-Paul; Attramadal, Kari; Michaud, L.; d’Orbcastel, E. Roque; Vadstein, Olav. (2011) Recirculation systems in Europe: state of the art and prospects. RAS workshop , Helsinski 2011-10-05 - 2011-10-06
Vitenskapelig foredrag

Vadstein, Olav. (2011) Gnotobiotic systems as a tool for unravelling host/microbe interaction in larval stages of fish. CCMAR - Centro de Ciências do Mar , Universidade do Algarve 2011-05-03 - 2011-05-03
Vitenskapelig foredrag

Vadstein, Olav. (2011) Trophic cascades in marine plankton: Calanoid copepods as a keystone group. X Ciclo de Conferencias sobre Biodiversidad y Conservacion , Universidat de Granada 2011-03-10 - 2011-03-10
Faglig foredrag

Vadstein, Olav. (2011) Kan bioteknologi revolusjonere oppdrettsnæringen?. FUGE Midt-Norge , Dokkhuset, Trondheim 2011-11-09 - 2011-11-09
Poster

Vadstein, Olav; Skjermo, Jorunn. (2011) "PROMICROBE". Faktaark for NTNU/SINTEFs stand under akvakulturmessen Aqua Nor 2011. Aqua Nor 2011 , Trondheim 2011-08-16 - 2011-08-19

2010

Vitenskapelig foredrag

Attramadal, Kari; Thuy, Minh Vu Thi; Buran, Astrid; Wold, Per-Arvid; Øie, Gunvor; Vadstein, Olav. (2010) Recirculation as a microbial control strategy in intensive aquaculture of marine larvae. Aquacultural Engineering Special Issues Forum , Roanoke, Virgina 2010-08-18 - 2010-08-19
Vitenskapelig foredrag

Bossier, P.; Vadstein, Olav; Olsen, Yngvar; Boon, N.; Bergh, Ø.; Gatesoupe, F.J.. (2010) Microbiology and immunology of larviculture. Aquaculture Europe 2010 , Porto 2010-10-05 - 2010-10-08
Vitenskapelig foredrag

Vadstein, Olav; Vestrum, Ragnhild Inderberg; Forberg, Torunn. (2010) Impact of live versus dead bacteria on survival, growth and gene expression in gnotobiotic Atlantic cod (Gadus morhua) larvae. Gut Microbiology: new insights into gut microbial ecosystems , Aberdeen, Scotland 2010-07-23 - 2010-07-25
Vitenskapelig foredrag

Attramadal, Kari; Salvesen, Ingrid; Øie, Gunvor; Xue, Renyu; Størseth, Trond; Vadstein, Olav. (2010) Recirculation as a microbial control strategy in intensive aquaculture of marine larvae. Aquaculture 2010, World Aquaculture Society , San Diego, California 2010-03-01 - 2010-03-05
Vitenskapelig foredrag

Vadstein, Olav; Bakke, Ingrid; Skjermo, Jorunn. (2010) Determination of the time window for successful steering of the intestinal microflora in atlantic cod Gadus morhua L. Aquaculture Europe 2010 , Porto 2010-10-05 - 2010-10-08
Vitenskapelig foredrag

Attramadal, Kari; Vu, T.T.M.; Buran, Astrid; Wold, Per-Arvid; Øie, Gunvor; Leiknes, TorOve. (2010) Recirculation as a microbial control strategy in intensive aquaculture of marine larvae. Aquaculture Europe 2010 , Porto 2010-10-05 -
Poster

Bakke, Ingrid; Skjermo, Jorunn; Dahle, Stine Veronica Wiborg; Vadstein, Olav. (2010) Steering of cod larvae (Gadus morhua) gut microbiota: Timing for probiotic treatment. Gut Microbiology: new insights into gut microbial ecosystems , Aberdeen, Scotland 2010-07-23 - 2010-07-25
Poster

Skjermo, Jorunn; Vo, Tu Anh; Bakke, Ingrid; Overrein, Ingrid; Øie, Gunvor; Vadstein, Olav. (2010) Development of the gut microbiota in atlantic cod Gadus morhua L. larvae fed copepods and rotifers. Aquaculture Europe 2010 , Porto 2010-10-05 - 2010-10-08
Poster

Skjermo, Jorunn; Anh, Vo Tu; Bakke, Ingrid; Overrein, Ingrid; Øie, Gunvor; Vadstein, Olav. (2010) Development of the gut microbiota in atlantic cod Gadus morhua L. larvae fed copepods and rotifers. Gut Microbiology: new insights into gut microbial ecosystems , Aberdeen, Scotland 2010-07-23 - 2010-07-25

2009

Vitenskapelig foredrag

Vadstein, Olav. (2009) Resirkulering i akvakultur: Mer enn avfallshåndtering. Akvakultur - muligheter og trusler i vann , Pirsenteret, Trondheim 2009-05-13 - 2009-05-13
Poster

Forberg, Torunn; Vadstein, Olav; Arukwe, Augustine. (2009) Strategies to unravel gene expression responses of host-microbe interactions in cod (Gadus morhua) larvae. LARVI’09 – 5th Fish & shellfish symposium , Gent, Belgium, 7-10 September 2009 2009-09-07 - 2009-09-10
Poster

Vestrum, Ragnhild Inderberg; Forberg, Torunn; Vadstein, Olav. (2009) Impact of live versus dead bacteria on survival, growth, and gene expression in Atlantic cod (Gadus morhua) larvae. LARVI’09 – 5th Fish & shellfish symposium , Gent, Belgium, 7-10 September 2009 2009-09-07 - 2009-09-10
Vitenskapelig foredrag

Forberg, Torunn; Vadstein, Olav; Arukwe, Augustine. (2009) HOST RESPONSES TO BACTERIA IN GNOTOBIOTIC ATLANTIC COD (GADUS MORHUA) LARVAE. Aquaculture Europe 2009 , Trondheim 2009-08-14 - 2009-08-17
Vitenskapelig foredrag

Bossier, P.; Dierckens, K.; Delsen, B. Van; Defoirdt, T.; Schryver, P. De; Vadstein, Olav. (2009) The role of microbiota in aquaculture target organisms and their environment. Aquaculture Europe 2009 , Trondheim 2009-08-14 - 2009-08-17

2008

Vitenskapelig foredrag

Forberg, Torunn; Vadstein, Olav; Arukwe, Augustine. (2008) Differential gene expression in Atlantic cod larvae (Gadus morhua) raised with and without bacteria. 6th INRA-ARI symposium Gut Microbiome , Clermont-Ferrand 2008-06-17 - 2008-06-20
Vitenskapelig foredrag

Vadstein, Olav; Østgaard, Kjetill. (2008) Miljøbioteknologi. TEKNA Biologiseminar , Trondheim 2008-04-08 - 2008-04-08
Vitenskapelig foredrag

Vadstein, Olav. (2008) Recirculation: More than Waste Management. Twin Event , Enkhuizen 2008-04-20 - 2008-04-22
Vitenskapelig foredrag

Attramadal, Kari; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2008) Recirculation technology for marine fish production. COST-EUREKA Twin Event Enkhuizen , Enkhuizen 2008-04-20 - 2008-04-22
Poster

Forberg, Torunn; Vadstein, Olav; Arukwe, Augustine. (2008) Differential gene expression in Atlantic cod larvae (Gadus morhua) raised with and without bacteria. "Microorganisms and health" Nordforsk , Ås 2008-06-10 - 2008-06-16
Vitenskapelig foredrag

Attramadal, Kari; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2008) Comparison of a flow through- and two recirculation systems for intensive rearing of cod larvae (Gadus morhua L.). ”Resirkulering av vann i akvakultur” , Sunndalsøra 2008-02-27 - 2008-02-28
Faglig foredrag

Kjørsvik, Elin; Attramadal, Kari; Øie, Gunvor; Alfredsen, Jo Arve; Alver, Morten; Larssen, Harald. (2008) CODTECH En prosessorientert tilnærming til intensiv produksjon av marin fiskeyngel med hovedfokus på torsk. Faktaark for forskningsprogrammet "Havbruk - en næring i vekst" 2008-10-28 -

2007

Vitenskapelig foredrag

Tøndel, Bjørnar; Attramadal, Kari; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2007) Effect of live algae, algae paste or clay, on fish performance organic matter and bacteria in cod larvea (Gadus morhua) tanks. Aquaculture Europe 07, Competing Claims , Istanbul 2007-10-25 - 2007-10-28
Vitenskapelig foredrag

Øie, Gunvor; Attramadal, Kari; Vadstein, Olav; Olsen, Yngvar. (2007) Comparison of a flow through- and two recirculation systems for intensive rearing of cod larvae (Gadus morhua L.). Aquaculture Europe 07, Competing Claims , Istanbul 2007-10-25 - 2007-10-27

2006

Poster

Saage, Andrea; Vadstein, Olav; Sommer, Ulrich. (2006) Feeding behaviour of two marine calanoid copepods: Calanus finmarchicus and Centropages hamatus. ASLO summer meeting, Global Challenges Facing Oceanography and Limnology , Victoria, British Columbia 2006-06-04 - 2006-06-09
Poster

Skjermo, Jorunn; Fjellheim, Anders; Klinkenberg, Geir; Vadstein, Olav; Aasen, Inga Marie. (2006) Høykapasitets screening av bakterier fra torsk (Gadus morhua). Programkonferanse HAVBRUK , Bergen 2006-03-29 - 2006-03-31
Poster

Fjellheim, Anders; Playfoot, Karina Jane; Aasen, Inga Marie; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2006) A new strategy for screening of probiotic bacteria, applied on cod larvae. Programkonferanse HAVBRUK , Bergen 2006-03-29 - 2006-03-31
Vitenskapelig foredrag

Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2006) Vigilance and impact of the nutrient loading on the pelagic ecosystem. VII Jornadas de Salmonicultura , Puerto Varas 2006-10-25 - 2006-10-27
Vitenskapelig foredrag

Reinertsen, Helge; Olsen, Yngvar; Vadstein, Olav. (2006) Harvesting at lower trophic levels in marine systems. "Development of Technology for Modernizing the Fish Sector in a Global Context" , Nha Trang University 2006-11-16 - 2006-11-17
Vitenskapelig foredrag

Attramadal, Kari; Salvesen, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2006) Effect of particle addition: Live algae, algae paste or clay, on organic matter and bacteria in cold water marine fish larvae thanks. AQUACULTURE EUROPE 2006/ WORLD AQUACULTURE 2006 , Firenze 2006-05-09 - 2006-05-13
Vitenskapelig foredrag

Fjellheim, Anders; Playfoot, Karina; Aasen, Inga Marie; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2006) Evaluation of potential probiotics for cod larvae. AQUACULTURE EUROPE 2006/ WORLD AQUACULTURE 2006 , Firenze 2006-05-09 - 2006-05-13
Vitenskapelig foredrag

Vadstein, Olav. (2006) Genetic implications in the production of rotifers in commercial finfish. Programkonferanse HAVBRUK , Bergen 2006-03-29 - 2006-03-31
Vitenskapelig foredrag

Skjermo, Jorunn; Fjellheim, Anders; Klinkenberg, Geir; Vadstein, Olav; Aasen, Inga Marie. (2006) High through-put screening of bacteria from cod Gadus morhua L. for probiotic properties. AQUACULTURE EUROPE 2006/ WORLD AQUACULTURE 2006 , Firenze 2006-05-09 - 2006-05-13
Vitenskapelig foredrag

Attramadal, Kari; Salvesen, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2006) Mikrobiell interaksjoner mellom partikler I intensive marin fiskelarveoppdrett: en sammenligning mellom mikroalger, algepasta og leire. Programkonferanse HAVBRUK , Bergen 2006-03-29 - 2006-03-31

2005

Poster

Salvesen, Ingrid; Attramadal, Kari; Vadstein, Olav. (2005) Interactions between bacteria and suspended particles in intensive larval culture: A comparison between microalgae, algal concentrate and clay. LARVI’05 – Fish & Shellfish Larviculture Symposium , Gent 2005-08-05 - 2005-08-08
Poster

Playfoot, Karina; Fjellheim, Anders; Vadstein, Olav. (2005) Isolation and characterisation of bacteria from the gut of cod larvae for consideration of probiotic effects. LARVI’05 – Fish & Shellfish Larviculture Symposium , Gent 2005-08-05 - 2005-08-08
Poster

Attramadal, Kari; Xue, Renyu; Salvesen, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2005) Microbial environment in a flow-through and a recirculating system for intensive rearing of cod larvae (Gadus morhua L.). LARVI’05 – Fish & Shellfish Larviculture Symposium , Gent 2005-08-05 - 2005-08-08
Poster

Kostopoulou, Venetia; Vadstein, Olav. (2005) Growth kinetics in three strains of the Brachionus plicatilis species complex. LARVI’05 – Fish & Shellfish Larviculture Symposium , Gent 2005-08-05 - 2005-08-08
Poster

Eggen, Runar; Tokle, Nils Egil; Evjemo, Jan Ove; Vadstein, Olav. (2005) Effect of algal species and physiological status on egg production and growth of copepods. ASLO Summer meeting 2005 , Santiago de Campostela 2005-06-19 - 2005-06-24
Vitenskapelig foredrag

Attramadal, Kari; Salvesen, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2005) Water quality and microbial environment in a flow through and recirculation system for intensive rearing of cod larvae (Gadus morhua L.). Aquaculture Europe 2005 , Trondheim 2005-08-05 - 2005-08-09
Vitenskapelig foredrag

Fjellheim, Anders; Playfoot, Karina; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2005) Characterization of the dominant and the antagonistic bacterial flora of cod (Gadus morhua L.) larvae reared under different conditions. Aquaculture Europe 2005 , Trondheim 2005-08-05 - 2005-08-09
Vitenskapelig foredrag

Stibor, Herwig; Sommer, Ulrich; Vadstein, Olav. (2005) Silicate, phytoplankton size structure and trophic cascades in marine plankton communities: A mesocosm study. ASLO Summer meeting 2005 , Santiago de Campostela 2005-06-19 - 2005-06-24
Vitenskapelig foredrag

Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. Aquaculture Europe 2005 , Trondheim 2005-08-05 - 2005-08-09
Vitenskapelig foredrag

Olsen, Yngvar; Andersen, Tom; Gismervik, Ingrid; Vadstein, Olav. (2005) Are marine planktonic heterotrophs likely to experience N or mineral P limitation in temperate coastal waters?. ASLO Summer meeting 2005 , Santiago de Campostela 2005-05-19 - 2005-06-24
Vitenskapelig foredrag

Fjellheim, Anders; Playfoot, Karina; Aasen, Inga Marie; Klinkenberg, Geir; Skjermo, Jorunn; Vadstein, Olav. (2005) Evaluation of potential probiotics for cod larvae: Impact of initial screening strategy. LARVI’05 – Fish & Shellfish Larviculture Symposium , Gent 2005-08-05 - 2005-08-08

2004

Vitenskapelig foredrag

Papakostas, S.; Dooms, S.; Triantafyllidis, A.; Deloof, D.; Kappas, I.; Dierckens, K.. (2004) Genetic identification of Brachionus species used in different hatcheries. Aquaculture Europe 2004 , Barcelona 2004-10-20 - 2004-10-23
Vitenskapelig foredrag

Skjermo, J.; Størseth, T.R.; Fjellheim, Anders; Hansen, A.H.; Salvesen, I.; Vadstein, Olav. (2004) The use of immunostimulants and probiotics for improved microbial management in intensive culture of marine fish larvae. Aquaculture Europe 2004 , Barcelona 2004-10-20 - 2004-10-23
Vitenskapelig foredrag

Vadstein, Olav; Endal, Anders; Magnussen, Ola Magnus; Olsen, Yngvar. (2004) Zooplankton as a resource in feed production: Possibilities, constrains and challenges. Aquaculture Europe 2004 , Barcelona 2004-10-20 - 2004-10-23
Poster

Papakostas, S.; Kanellis, D.; Kappas, I.; Baxevanis, A.; Wolf, T. De; Dooms, S.. (2004) Genetic study of Brachionus sp. rotifers from european hatcheries: Preliminary results. 26th congress of the Panhellenic Society of Biological Sciences , Volos 2004-05-26 - 2004-05-30
Vitenskapelig foredrag

Olsen, Lasse Mork; Øzturk, Murat; Sakshaug, Egil; Vadstein, Olav; Sandaa, Ruth Anne; Johnsen, Geir. (2004) Interactions between metabolism, geochemistry and bacterial diversity in cultures of the marine dinoflagellate Prorocentrum minimum. ASLO møte , Honolulu, Hawaii 2004-02-15 - 2004-02-20

2003

Vitenskapelig foredrag

Tokle, Nils Egil; Chauton, Matilde Skogen; Leiknes, Øystein; Lilleøkdal, Grete; Vadstein, Olav; Olsen, Yngvar. (2003) Impact of food concentrations and predation on ciliates in a Norwegian fjord (Trondheimsfjord). 3rd International Zooplankton Production Symposium - The role of zooplankton in global ecosystem dynamics: Comparative studies from the world oceans , Gijón, Spania 2003-05-23 -
Vitenskapelig foredrag

Vadstein, Olav; Olsen, Lasse Mork; Andersen, Tom; Reinertsen, Helge. (2003) Grazing by Brachionus plicatilis: Prey dependent or ratio dependent. Rotifera X international symposium , Illmitz, Austria 2003-06-14 -
Vitenskapelig foredrag

Vadstein, Olav; Andersen, Tom. (2003) Construction of flow networks of microbial food webs. FEMS Worskshop: Assessing the variability in aquatic microbial populations: Facts and fiction , Mondsee, Austria 2003-02-20 -
Poster

Gismervik, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2003) Ciliate community response to increased food levels and reduced predation pressure: Results from a large scale marine experiment of a landlocked bay. Poster , Gijon 2003-05-20 - 2003-05-23
Poster

Salvesen, Ingrid; Reitan, Kjell Inge; Skjermo, Jorunn; Vadstein, Olav; Øie, Gunvor. (2003) Interactions between microalgae and bacteria in intensive marine larviculture. 11th International Conference European Association of Fish Pathologists , Malta 2003-09-25 -
Poster

Gismervik, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2003) Ciliate community response to increased food levels and reduced predation pressure: Results from a large scale experiment. 3rd International Zooplankton Symposium. The role of zooplankton in gobal ecosystem dynamics: Comparative studies from the world oceans , Fijón, Spain 2003-05-23 -

2002

Vitenskapelig foredrag

Vadstein, Olav; Busch, Arild; Olsen, Lasse Mork; Andersen, Tom; Reinertsen, Helge. (2002) Is phosphorus limitation of heterotrophic bacteria and accumulation of degradable organic carbon a normal phenomenon in phosphorus limited systems? A microcosm study. 8th Symposium on Aquatic Microbial Ecology (SAME-8) , Taormina, Italy 2002-10-30 -
Vitenskapelig foredrag

Skjermo, Jorunn; Rokstad, Anne Mari Aukan; Salvesen, Ingrid; Skjåk-Bræk, Gudmund; Vadstein, Olav. (2002) Immunostimulation in marine larval rearing. ICES 2002 Annual Science Conference , Copenhagen 2002-10-05 -

2001

Vitenskapelig foredrag

Salvesen, Ingrid; Skjermo, Jorunn; Vadstein, Olav. (2001) Magic solutions to bacterial problems in early life stages: Do they exist?. 3rd Fish & Shellfish Larviculture Symposium , Gent, Belgia, 3.-6. september 2001
Poster

Vadstein, Olav; Østensen, Mari-Ann; Enger, Øivind; Salvesen, Ingrid. (2001) Describing Bacterial Community Succession: A comparison of Plate Count Based Methods and Denaturing Gradient Gel Electrophoresis using Seawater Microcosms. 9th International Symposium on Microbial Ecology , Amsterdam, Nederland, 26-31 august 2001

2000

Vitenskapelig foredrag

Vadstein, Olav; Olsen, Yngvar; Reinertsen, Helge; Hoell, Espen; Gismervik, Ingrid; Sommer, Ulrich. (2000) Pelagic environmental effects of experimental fertilisation of coastal lagoon. 1st Maricult Conference , Trondheim, 25-28 June 2000
Vitenskapelig foredrag

Olsen, Lasse Mork; Reinertsen, Helge; Vadstein, Olav. (2000) Can phosphorus limitation inhibit dissolved organic carbon consumption in aquatic microbial food webs ? A study of three food web structures in microcosms. ASLO meeting , Copenhagen 2000-06-05 - 2000-06-09

1999

Vitenskapelig foredrag

Skjermo, Jorunn; Salvesen, Ingrid; Conceicão, Luis; Skjåk-Bræk, Gudmund; Vadstein, Olav. (1999) Microbial control in larval culture: Effects of non-specific immunostimulation of larval turbot (Scophthalmus maximus L). Aquaculture Europe 99: Towards predictable quality , Trondheim, 7-10 august 1999
Vitenskapelig foredrag

Makridis, Pavlos; Bergh, Øivind; Fjellheim, Anders Jon; Skjermo, Jorunn; Vadstein, Olav. (1999) Microbial control of live food cultures. Aquaculture Europe 99: Towards predictable quality , Trondheim, 7-10 august 1999
Vitenskapelig foredrag

Vadstein, Olav. (1999) Microbial problems in the hatcheries: Analysis of the problem and a strategy out. Aquaculture Europe 99: Towards predictable quality , Trondheim, 7-10 august 1999
Vitenskapelig foredrag

Olsen, Atle I.; Olsen, Yngvar; Atramadal, Yngve; Vadstein, Olav; Birkbeck, Harry. (1999) Microbial control in larval cultures: Effect of short term feeding on microalgae on bacterial level and composition associated with juvenile Artemia franciscana. Aquaculture Europe 99: Towards predictable quality , Trondheim, 7-10 august 1999
Vitenskapelig foredrag

Reitan, Kjell Inge; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar; Reinertsen, Helge. (1999) Enhanced Nutrient Supply to Norwegian Coastal Waters: Effects on Growth of Scallops and Blue Mussels. 28th UNJNR Aquaculture Panel Meeting , Hawaii, November 7-16, 1999
Vitenskapelig foredrag

Makridis, Pavlos; Skjermo, Jorunn; Vadstein, Olav. (1999) Development of methods for the transfer of probiotic bacteria to marine fish larvae through live feed organisms. World Aquaculture '99 , Sydney, Australia, 26 april-2 mai 1999
Poster

Fjellheim, Anders Jon; Makridis, Pavlos; Skjermo, Jorunn; Vadstein, Olav. (1999) Rotifers (Brachionus plicatilis) as vector for probiotics to turbot larvae (Scophthalmus maximus). Aquaculture Europe 99: Towards predictable quality , Trondheim, 7-10 august 1999
Poster

Vadstein, Olav; Olsen, Yngvar; Reinertsen, Helge; Hoell, Espen; Gismervik, Ingrid; Sommer, Ulrich. (1999) The Hopavågen experiment: A four-year artificial eutrophication experiment in a land-locked bay. European Land-Ocean interaction Studies (ELOISE) Third Open Science Meeting , Noordwijkerhout, The Netherlands, 1-4 desember 1999
Vitenskapelig foredrag

Vadstein, Olav. (1999) Microbial problems in the hatcheries: Analysis of the problem and a strategy out. World Aquaculture '99 , Sydney, Australia
Faglig foredrag

Rokstad, Anne Mari Aukan; Espevik, Terje; Skjåk-Bræk, Gudmund; Vadstein, Olav; Skjermo, Jorun. (1999) Alginates as adjuvant in fish vaccine against Aeromonas salmonicida. 35. Biokjemiske Kontaktmøte, NBS , Tromsø, 21-24. januar 1999

1998

Vitenskapelig foredrag

Vadstein, Olav; Olsen, Yngvar; Reinertsen, Helge. (1998) Sequestration of nitrogen and phosphorus by planktonic algae and bacteria in limnetic and marine waters. The Land-Water interface: Science for a Sustainable Biosphere , St Lois, U.S.A., 8.-12. June 1998.

1997

Poster

Vadstein, Olav; Dalløkken, Runar; Olsen, Yngvar; Sandvik, Roar; Reinertsen, Helge. (1997) Size related sequestering of makro-nutrients by plankton in North Atlantic waters. European Land-Ocean interaction Studies (ELOISE) First Open Science Meeting , Arcachon, France, 21-23 may 1997

1996

Vitenskapelig foredrag

Reitan, K. I.; Rainuzzo, J. R.; Øie, G.; Vadstein, Olav; Olsen, Yngvar. (1996) Optimizing of larval densities in first-feeding of turbot using green-water and clear-water techniques. World aquaculture' 96". , Bankok, Thailand.

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Olav Vadstein

Olav Vadstein

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