Yngvar Olsen

About

Research interests and experience

The research activities of Yngvar Olsen have basically been related to different aspects of nutrition of plankton organisms, the first 10 years in freshwater and later on in marine coastal water. Early work involved studies of uptake and use of mineral nutrient in phytoplankton and food intake and allocation in zooplankton. Later work includes more integrated ecological studies of planktonic food webs with a focus on the important functional plankton groups and their trophic interactions in coastal waters. Experimental studies have been most important, and culture systems include batch cultures and chemostat for single organisms, mesocosms for experimental ecosystems, and lakes/lagoons for full scale ecosystem experiments (see list of publications in http://scholar.google.com/citations?user=Vc6KjlIAAAAJ&hl=no).

The majority of the biological activity in the marine ecosystems (>90%) takes place in microorganisms of the planktonic food web, which includes organisms feeding on at least 4 different trophic levels (level 1-4). This is different in terrestrial ecosystems where carnivores eating other carnivores (trophic level 4) are not that common. The functional and structural characteristics of the planktonic food web are most important for the environmental state of the marine ecosystem, for its productivity and fishing yields, and for its ability to take up and sequester carbon through the so called “Biological Carbon Pump” (see Figure). Plankton nutrition and interactions between organisms and functional groups are instrumental for a fully understanding all these aspects.

Fields of research related to plankton nutrition:

General mechanisms of coastal eutrophication - over-fertilization of coastal water leading to unacceptable environmental state in coastal waters
Environmental influence of salmon aquaculture on surface water ecosystems, carrying capacity of production
Planktonic stages of salmon lice, transfer mechanisms in and in between stocks of salmonids
Lipid nutrition in fish larvae (classified as plankton) and juveniles
Rotifer culture and their lipid/phospholipids metabolism, lipid enrichment procedures
Lipid and mineral nutrition of copepods; with focus on red feed Calanus finmarchicus
Experimental studies of microalgae; growth characteristics and biochemical composition

Fields of research related to aquaculture ecology:

Integrated multi-trophic aquaculture (IMTA), salmon driven with a focus on waste generation of salmon and macroalgae in IMTA
Nutrient physiology and growth characteristics of farmed and wild macroalgae

MsC and Phd studies can be advised within all mentioned fields of research.

Specialty Chief Editor: Marine Fisheries, Aquaculture and Living Resources, Frontiers in Marine Science (http://journal.frontiersin.org/journal/marine-science)

Publications

2023

Petersen, Magnus; Bjordal, Mari; Gjerstad, Marit; Kjerrgård, Ole Christian; Aspøy, Bjørn; James, Philip; Boéchat, Céline; Ravagnan, Elisa; Sparboe, Lars Olav; Olsen, Yngvar. (2023) Framtidas matproduksjon: Regjeringen spenner bein på egne mål. Nationen.
Feature article

2022

Dong, Shuang-lin; Dong, Yun-wei; Cao, Ling; Verreth, Johan; Olsen, Yngvar; Liu, Wen-jing; Fang, Qi-zhi; Zhou, Yan-gen; Li, Li; Li, Jing-yu; Mu, Yong-tong; Sorgeloos, Patrick. (2022) Optimization of aquaculture sustainability through ecological intensification in China. Reviews in Aquaculture. volum 14.
Academic article
Guragain, Prashanna; Båtnes, Anna Solvang; Zobolas, John; Olsen, Yngvar; Bones, Atle M.; Winge, Per. (2022) IIb-RAD-sequencing coupled with random forest classification indicates regional population structuring and sex-specific differentiation in salmon lice (Lepeophtheirus salmonis). Ecology and Evolution. volum 12 (4).
Academic article
Vestrum, Ragnhild Inderberg; Forberg, Torunn; Luef, Birgit; Bakke, Ingrid; Winge, Per; Olsen, Yngvar; Vadstein, Olav. (2022) Commensal and opportunistic bacteria present in the microbiota in atlantic cod (Gadus morhua) larvae differentially alter the hosts’ innate immune responses. Microorganisms. volum 10 (1).
Academic article

2021

Erbs, Stefan; James, Philip; Boéchat, Céline; Ravagnan, Elisa; Sparboe, Lars Olav; Petersen, Magnus; Gjerstad, Marit; Takeda, Brian Tsuyoshi; Skjermo, Jorunn; Bekkby, Trine; Olsen, Yngvar. (2021) Fiskeriministeren må dukke ned i taren. Bergens Tidende.
Feature article
Guragain, Prashanna; Tkachov, Max; Båtnes, Anna Solvang; Olsen, Yngvar; Winge, Per; Bones, Atle M.. (2021) Principles and Methods of Counteracting Harmful Salmon–Arthropod Interactions in Salmon Farming: Addressing Possibilities, Limitations, and Future Options. Frontiers in Marine Science. volum 8.
Academic literature review
Hancke, Kasper; Broch, Ole Jacob; Olsen, Yngvar; Bekkby, Trine; Hansen, Pia Kupka; Fieler, Reinhold; Attard, Karl; Borgersen, Gunhild; Christie, Hartvig C. (2021) Miljøpåvirkninger av taredyrking og forslag til utvikling av overvåkingsprogram. 2021. NIVA-rapport (7589).
Report
Jevne, Lone Sunniva; Guttu, Ane Maria; Båtnes, Anna Solvang; Olsen, Yngvar; Reitan, Kjell Inge. (2021) Planktonic and Parasitic Sea Lice Abundance on Three Commercial Salmon Farms in Norway Throughout a Production Cycle. Frontiers in Marine Science. volum 8.
Academic article
Mathew, K Avarachen; Ardelan, Murat Van; Villa Gonzalez, Susana; Vadstein, Olav; Sajith Vezhapparambu, Veena; Leiknes, Øystein; Mankettikkara, Rahman; Olsen, Yngvar. (2021) Temporal dynamics of carbon sequestration in coastal North Atlantic fjord system as seen through dissolved organic matter characterisation. Science of the Total Environment. volum 782.
Academic article
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. volum 8.
Academic article

2020

Forbord, Silje; Etter, Siv Anina; Broch, Ole Jacob; Dahlen, Vegard Rønning; Olsen, Yngvar. (2020) Initial short-term nitrate uptake in juvenile, cultivated Saccharina latissima (Phaeophyceae) of variable nutritional state. Aquatic Botany. volum 168.
Academic article
Forbord, Silje; Matsson, Sanna; Brodahl, Guri Ellila; Bluhm, Bodil; Broch, Ole Jacob; Handå, Aleksander; Metaxas, Anna; Skjermo, Jorunn; Steinhovden, Kristine; Olsen, Yngvar. (2020) Latitudinal, seasonal and depth-dependent variation in growth, chemical composition and biofouling of cultivated Saccharina latissima (Phaeophyceae) along the Norwegian coast. Journal of Applied Phycology. volum 32.
Academic article
Guragain, Prashanna; Sporsheim, Bjørnar; Skjesol, Astrid; Båtnes, Anna Solvang; Olsen, Yngvar; Bones, Atle M.; Winge, Per. (2020) Phenylalanine Hydroxylase RNAi Knockdown Negatively Affects Larval Development, Molting and Swimming Performance of Salmon Lice. Frontiers in Marine Science. volum 7 (608463).
Academic article
Jevne, Lone Sunniva; Forbord, Silje; Olsen, Yngvar. (2020) The Effect of Nutrient Availability and Light Conditions on the Growth and Intracellular Nitrogen Components of Land-Based Cultivated Saccharina latissima (Phaeophyta). Frontiers in Marine Science. volum 7 (557460).
Academic article
Jevne, Lone Sunniva; Øvrelid, Margrete Slåtsve; Hagemann, Andreas; Bloecher, Nina; Steinhovden, Kristine; Båtnes, Anna Solvang; Olsen, Yngvar; Reitan, Kjell Inge. (2020) Biofouling on salmon pen nets and cleaner fish shelters does not harbor planktonic stages of sea lice. Frontiers in Marine Science. volum 7 (727).
Academic article
Jin, Yang; Olsen, Rolf Erik; Harvey, Thomas Nelson; Østensen, Mari-Ann; Li, Keshuai; Santi, Nina; Vadstein, Olav; Bones, Atle M.; Vik, Jon Olav; Sandve, Simen Rød; Olsen, Yngvar. (2020) Comparative transcriptomics reveals domestication‐associated features of Atlantic salmon lipid metabolism. Molecular Ecology. volum 29 (10).
Academic article

2019

Bergvik, Maria; Stensås, Lene; Handå, Aleksander; Reitan, Kjell Inge; Strand, Øivind; Olsen, Yngvar. (2019) Incorporation of feed and fecal waste from salmon aquaculture in great scallops (Pecten Maximus) co-fed by different algal concentrations. Frontiers in Marine Science. volum 5.
Academic article
Jalili, Mahsa; Jin, Yang; Bones, Atle M.; Olsen, Yngvar; Vadstein, Olav; Østensen, Mari-Ann; Buonocore, Francesco; Gerdol, Marco; Pallavicini, Alberto; Scapigliati, Giuseppe. (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. volum 9 (27).
Academic article
Jin, Yang; Angell, Inga Leena; Sandve, Simen Rød; Snipen, Lars-Gustav; Olsen, Yngvar; Rudi, Knut. (2019) Atlantic salmon raised with diets low in long-chain polyunsaturated n-3 fatty acids in freshwater have a Mycoplasma-dominated gut microbiota at sea. Aquaculture Environment Interactions. volum 11.
Academic article
Sanchez, Nicolas; Peterson, Claire Katja; Villa Gonzalez, Susana; 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. volum 209.
Academic article

2018

Fossberg, Julia; Forbord, Silje; Broch, Ole Jacob; Malzahn, Arne; Jansen, Henrice M; Handå, Aleksander; Førde, Henny; Bergvik, Maria; Fleddum, Anne Lise; Skjermo, Jorunn; Olsen, Yngvar. (2018) The potential for upscaling kelp (Saccharina latissima) cultivation in salmon-driven integrated multi-trophic aquaculture (IMTA). Frontiers in Marine Science. volum 9:418.
Academic article
Jin, Yang; Olsen, Rolf Erik; Gillard, Gareth B.; Østensen, Mari-Ann; Korsvoll, Sven A.; Santi, Nina; Vik, Jon Olav; Sandve, Simen Rød; Olsen, Yngvar. (2018) A systemic study of lipid metabolism regulation in salmon fingerlings and early juveniles fed plant oil. British Journal of Nutrition. volum 120 (6).
Academic article
Jin, Yang; Olsen, Rolf Erik; Østensen, Mari-Ann; Gillard, Gareth Benjamin; Korsvoll, Sven Arild; Santi, Nina; Gjuvsland, Arne Bjørke; Vik, Jon Olav; Torgersen, Jacob Seilø; Sandve, Simen Rød; Olsen, Yngvar. (2018) Transcriptional development of phospholipid and lipoprotein metabolism in different intestinal regions of Atlantic salmon (Salmo salar) fry. BMC Genomics. volum 19.
Academic article
Jin, Yang; Olsen, Rolf Erik; Østensen, Mari-Ann; Gillard, Gareth Benjamin; Li, Keshuai; Harvey, Thomas Nelson; Santi, Nina; Vadstein, Olav; Vik, Jon Olav; Sandve, Simen Rød; Olsen, Yngvar. (2018) Transcriptional regulation of lipid metabolism when salmon fry switches from endogenous to exogenous feeding. Aquaculture. volum 503.
Academic article
Li, Keshuai; Olsen, Rolf Erik; Jin, Yang; Olsen, Yngvar. (2018) Phospholipids in Marine Larval Rearing. Emerging Issues in Fish Larvae Research.
Chapter
Sanchez, Nicolas; Brown, Eunice Nana Adjoa; Olsen, Yngvar; Vadstein, Olav; Iriarte, Jose Luis; Gonzalez, Humberto E.; Ardelan, Murat Van. (2018) Effect of Siderophore on Iron Availability in a Diatom and a Dinoflagellate Species: Contrasting Response in Associated Bacteria. Frontiers in Marine Science. volum 5 (118).
Academic article
Tsagaraki, Tatiana Margo; Pree, Bernadette; Leiknes, Øystein; Larsen, Aud; Bratbak, Gunnar; Øvreås, Lise; Egge, Jorun Karin; Spanek, Roman; Paulsen, Maria Lund; Olsen, Yngvar; Vadstein, Olav; Thingstad, T. Frede. (2018) Bacterial community composition responds to changes in copepod abundance and alters ecosystem function in an Arctic mesocosm study. The ISME Journal. volum 12 (11).
Academic article
Vadstein, Olav; Attramadal, Kari; Bakke, Ingrid; Forberg, Torunn; Olsen, Yngvar; Verdegem, Marc; Giatsis, Cristos; Skjermo, Jorunn; Aasen, Inga Marie; Gatesoupe, François-Joel; Dierckens, Kristof; Sorgeloos, Patrick; Bossier, Peter. (2018) Managing the microbial community of marine fish larvae: a holistic perspective for larviculture. Frontiers in Microbiology. volum 9.
Academic literature review
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. volum 9.
Academic literature review
Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.; Vadstein, Olav; Bakke, Ingrid. (2018) Rearing water treatment induces microbial selection influencing the microbiota and pathogen associated transcripts of Cod (Gadus morhua) Larvae. Frontiers in Microbiology. volum 9 (MAY).
Academic article

2017

Olsen, Lasse Mork; Hernandez, Klaudia; Ardelan, Murat Van; Iriarte, Jose Luis; Bizsel, Can; Olsen, Yngvar. (2017) Responses in bacterial community structure to waste nutrients from aquaculture: an in situ microcosm experiment in a Chilean fjord. Aquaculture Environment Interactions. volum 9.
Academic article
Olsen, Lasse Mork; Hernandez, Klaudia; Ardelan, Murat Van; Iriarte, Jose Luis; Bizsel, Can; Olsen, Yngvar. (2017) Responses in the bacterial community structure to waste nutrients from aquaculture: an in situ microcosm experiment in a Chilean fjord. Aquaculture Environment Interactions. volum 9 (1).
Academic article

2016

Forberg, Torunn; Sjulstad, Eli Bjørnø; Bakke, Ingrid; Olsen, Yngvar; Hagiwara, Atsushi; Sakakura, Yoshitaka; Vadstein, Olav. (2016) Correlation between microbiota and growth in Mangrove Killifish (Kryptolebias marmoratus) and Atlantic cod (Gadus morhua). Scientific Reports. volum 6.
Academic article
Hagemann, Andreas; Vorren, Sigbjørn Hjetleland; Attramadal, Yngve; Evjemo, Jan Ove; Olsen, Yngvar. (2016) Effects of different wavelengths and intensities of visible light on the hatching success of Acartia tonsa Dana eggs. Aquaculture International. volum Published ahead of print.
Academic article
Hagemann, Andreas; Øie, Gunvor; Evjemo, Jan Ove; Olsen, Yngvar. (2016) Effects of light and short-term temperature elevation on the 48-h hatching success of cold-stored Acartia tonsa Dana eggs. Aquaculture International. volum 24 (1).
Academic article
Jin, Yang; Li, Keshuai; Olsen, Yngvar. (2016) Time kinetics of fatty acid changes in phospholipids following enrichment and starvation of Artemia franciscana with a main focus on docosahexaenoic acid. Aquaculture Nutrition. volum 22 (1).
Academic article
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. volum 3:33.
Academic article
Løland, Anders; Omholt, Stig William; Lamberg, Anders; Kristensen, Torstein; Urke, Henning Andre; Olsen, Yngvar. (2016) Metodevurdering for registrering rømt oppdrettslaks. 2016. ISBN 978-82-998249-3-4.
Report

2015

Jansen, Henrice M; Handå, Aleksander; Cranford, Peter; Bannister, Raymond; Bergvik, Maria; Broch, Ole Jacob; Forbord, Silje; Husa, Vivian; Olsen, Yngvar; Reitan, Kjell Inge; Skjermo, Jorunn; Strand, Øivind. (2015) EXPLOITATION OF NUTRIENTS FROM SALMON AQUACULTURE: WHAT IS THE POTENTIAL FOR IMTA IN NORWAY?. Journal of Shellfish Research. volum 34 (2).
Short communication
Li, Keshuai; Kjørsvik, Elin; Bergvik, Maria; Olsen, Yngvar. (2015) Manipulation of the fatty acid composition of phosphatidylcholine and phosphatidylethanolamine in rotifers Brachionus Nevada and Brachionus Cayman. Aquaculture Nutrition. volum 21 (1).
Academic article
Li, Keshuai; Olsen, Rolf Erik; Østensen, Mari-Ann; Altin, Dag; Kjørsvik, Elin; Olsen, Yngvar. (2015) Atlantic cod (Gadus morhua) larvae can biosynthesis phospholipid de novo from 2-oleoyl-glycerol and glycerol precursors. Fish Physiology & Biochemistry. volum 42 (1).
Academic article
Li, Keshuai; Olsen, Yngvar. (2015) Effect of enrichment time and dietary DHA and non-highly unsaturated fatty acid composition on the efficiency of DHA enrichment in phospholipid of rotifer (Brachionus Cayman). Aquaculture. volum 446.
Academic article
Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bones, Atle M.; Vadstein, Olav; Kjørsvik, Elin; Olsen, Yngvar. (2015) Gene regulation of lipid and phospholipid metabolism in Atlantic cod (Gadus morhua) larvae. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology. volum 190.
Academic article
Olsen, Yngvar. (2015) How can mariculture better help feed humanity?. Frontiers in Marine Science. volum 2 (26).
Academic article

2014

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. volum 432.
Academic article
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. volum 85.
Academic article
Luong, Anh D; De Laender, Frederik; 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. volum 493.
Academic article
Olsen, Lasse Mork; Hernandez, Klaudia; Ardelan, Murat Van; Iriarte, Jose Luis; Sanchez, Nicolas; Gonzalez, Humberto E.; Tokle, Nils Egil; Olsen, Yngvar. (2014) Responses in the microbial food web to increased rates of nutrient supply in a southern Chilean fjord: Possible implications of cage aquaculture. Aquaculture Environment Interactions. volum 6 (1).
Academic article
Olsen, Yngvar; Evjemo, Jan Ove; Kjørsvik, Elin; Larssen, Harald; Li, Keshuai; Overrein, Ingrid; Rainuzzo, Jose R.. (2014) DHA content in dietary phospholipids affects DHA content in phospholipids of cod larvae and larval performance. Aquaculture. volum 428-429.
Academic article
Olsen, Yngvar; Reinertsen, Helge; Sommer, Ulrich; Vadstein, Olav. (2014) 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. volum 473-474 (March).
Academic article
Skjermo, Jorunn; Aasen, Inga Marie; Arff, Johanne; Broch, Ole Jacob; Carvajal, Ana Karina; Christie, Hartvig C; Forbord, Silje; Olsen, Yngvar; Reitan, Kjell Inge; Rustad, Turid; Sandquist, Judit; Solbakken, Roar; Steinhovden, Kristine; Wittgens, Bernd; Wolff, Robert; Handå, Aleksander. (2014) A new Norwegian bioeconomy based on cultivation and processing of seaweeds: Opportunities and R&D needs. 2014. ISBN 978-82-14-05712-6.
Report
Wang, Xinxin; Broch, Ole Jacob; Forbord, Silje; Handå, Aleksander; Skjermo, Jorunn; Reitan, Kjell Inge; Vadstein, Olav; Olsen, Yngvar. (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. volum 26 (4).
Academic article

2013

Blöcher, Nina; Olsen, Yngvar; Günther, Jana. (2013) Variability of biofouling communities on fish cage nets: A 1-year field study at a Norwegian salmon farm. Aquaculture. volum 416-417.
Academic article
Broch, Ole Jacob; Ellingsen, Ingrid H.; Forbord, Silje; Wang, Xinxin; Volent, Zsolt; Alver, Morten; Handå, Aleksander; Andresen, Kjersti; Slagstad, Dag; Reitan, Kjell Inge; Olsen, Yngvar; Skjermo, Jorunn. (2013) Modelling the cultivation and bioremediation potential of the kelp Saccharina latissima in close proximity to an exposed salmon farm in Norway. Aquaculture Environment Interactions. volum 4 (2).
Academic article
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. volum 58.
Academic article
Handå, Aleksander; Forbord, Silje; Wang, Xinxin; Broch, Ole Jacob; Dahle, Stine Veronica Wiborg; Størseth, Trond Røvik; Reitan, Kjell Inge; Olsen, Yngvar; Skjermo, Jorunn. (2013) Seasonal- and depth-dependent growth of cultivated kelp (Saccharina latissima) in close proximity to salmon (Salmo salar) aquaculture in Norway. Aquaculture. volum 414-415.
Academic article
Handå, Aleksander; McClimans, Thomas; Reitan, Kjell Inge; Knutsen, Øyvind; Tangen, Karl; Olsen, Yngvar. (2013) Artificial upwelling to stimulate growth of non-toxic algae in a habitat for mussel farming. Aquaculture Research. volum 45.
Academic article
Handå, Aleksander; Nordtug, Trond; Halstensen, Stein; Olsen, Anders Johny; Reitan, Kjell Inge; Olsen, Yngvar; Reinertsen, Helge. (2013) Temperature-dependent feed requirements in farmed blue mussels (Mytilus edulis L.) estimated from soft tissue growth and oxygen consumption and ammonia-N excretion. Aquaculture Research. volum 44 (4).
Academic article
Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bakke, Ingrid; Bones, Atle M.; Vadstein, Olav; Kjørsvik, Elin; Olsen, Yngvar. (2013) Gene regulation of Atlantic cod (Gadus morhua) larvae with focus on lipid digestion and phospholipid metabolism. Communications in agricultural and applied biological sciences. volum 78 (4).
Academic article
Mühlroth, Alice; Li, Keshuai; Røkke, Gunvor; Winge, Per; Olsen, Yngvar; Hohmann-Marriott, Martin Frank; Vadstein, Olav; Bones, Atle M.. (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. volum 11 (11).
Academic literature review
Olsen, Yngvar. (2013) A synthesis of the technical, environmental, spatial and governance issues and opportunities. Expanding mariculture father offshore. Technical, environmental, spatial and governance challenges.
Chapter
Olsen, Yngvar. (2013) Ecological principles and options for seafood production. Food from the Ocean - Norway's Opportunities.
Academic chapter/article/Conference paper
Olsen, Yngvar; Almås, Karl Andreas. (2013) Laks med god smak. Adresseavisen.
Feature article
Vadstein, Olav; Bergh, Øivind; Gatesoupe, Francois-Joel; Galindo-Villegas, Jorge; Mulero, Victoriano; Picchietti, Simona; Scapigliati, Giuseppe; Makridis, Pavlos; Olsen, Yngvar; Dierckens, Kristof; Defoirdt, Tom; Boon, Nico; De Schryver, Peter; Bossier, Peter. (2013) Microbiology and immunology of fish larvae. Reviews in Aquaculture. volum 53.
Academic literature review
Vadstein, Olav; Olsen, Yngvar. (2013) Trenger et kraftløft for fôr. Fiskaren.
publications.INTERVJUSKRIFTL
Wang, Xinxin; Andresen, Kjersti; Handå, Aleksander; Jensen, Bjørn; Reitan, Kjell Inge; Olsen, Yngvar. (2013) Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility. Aquaculture Environment Interactions. volum 4.
Academic article

2012

Attramadal, Kari; Salvesen, Ingrid; Xue, Renyu; Øie, Gunvor; Størseth, Trond Røvik; Vadstein, Olav; Olsen, Yngvar. (2012) Recirculation as a possible microbial control strategy in the production of marine larvae. Aquacultural Engineering. volum 46.
Academic article
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. volum 49.
Academic article
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. volum 330.
Academic article
Bergvik, Maria; Leiknes, Øystein; Altin, Dag; Dahl, Kjersti Rennan; Olsen, Yngvar. (2012) Dynamics of the Lipid Content and Biomass of Calanus finmarchicus (copepodite V) in a Norwegian Fjord. Lipids. volum 47 (9).
Academic article
Fredriksen, Stein; Husa, Vivian; Skjoldal, Hein Rune; Sjøtun, Kjersti; Christie, Hartvig C; Dale, Trine; Olsen, Yngvar. (2012) Ingen regional overgjødsling på Vestlandet. Havforskningsrapporten.
Popular scientific article
Handå, Aleksander; Min, Hojune; Wang, Xinxin; Broch, Ole Jacob; Reitan, Kjell Inge; Reinertsen, Helge; Olsen, Yngvar. (2012) Incorporation of fish feed and growth of blue mussels (Mytilus edulis) in close proximity to salmon (Salmo salar) aquaculture: Implications for integrated multi-trophic aquaculture in Norwegian coastal waters. Aquaculture. volum 356.
Academic article
Handå, Aleksander; Ranheim, Anders Wanvik; Olsen, Anders Johny; Altin, Dag; Reitan, Kjell Inge; Olsen, Yngvar; Reinertsen, Helge. (2012) Incorporation of salmon fish feed and feces components in mussels (Mytilus edulis): Implications for integrated multi-trophic aquaculture in cool-temperate North Atlantic waters. Aquaculture. volum 370-371.
Academic article
Olsen, Yngvar; Tokle, Nils Egil; Vadstein, Olav. (2012) Hvordan forvalte vannmassene? Om samspillet mellom næringssalt-utslipp og det planktoniske økosystemet. Kampen om plass på kysten : interesser og utviklingstrekk i kystsoneplanleggingen.
Academic chapter/article/Conference paper
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. volum 447.
Academic article
Wang, Xinxin; Olsen, Lasse Mork; Reitan, Kjell Inge; Olsen, Yngvar. (2012) Discharge of nutrient wastes from salmon farms: environmental effects, and potential for integrated multi-trophic aquaculture. Aquaculture Environment Interactions. volum 2 (3).
Academic literature review

2011

Fredriksen, Stein; Skjoldal, HR; Husa, Vivian; Olsen, Yngvar; Christie, Hartvig C; Dale, Trine; Sjøtun, Kjersti. (2011) Vurdering av eutrofisituasjonen i kystområder, med særlig fokus på Hardangerfjorden og Boknafjorden. 2011.
Report
Handå, Aleksander; Alver, Morten; Edvardsen, Christian Vik; Halstensen, Stein; Olsen, Anders Johny; Øie, Gunvor; Reitan, Kjell Inge; Olsen, Yngvar; Reinertsen, Helge. (2011) Growth of farmed blue mussels (Mytilus edulis L.) in a Norwegian coastal area; comparison of food proxies by DEB modeling. Journal of Sea Research. volum 66 (4).
Academic article
Olsen, Yngvar. (2011) Resources for fish feed in future mariculture. Aquaculture Environment Interactions. volum 1 (3).
Academic article
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. volum 436.
Academic article
Øie, Gunvor; Reitan, Kjell Inge; Evjemo, Jan Ove; Støttrup, Josianne; Olsen, Yngvar. (2011) Live Feeds. Larval Fish Nutrition.
Academic chapter/article/Conference paper

2010

Alver, Morten; Alfredsen, Jo Arve; Øie, Gunvor; Storøy, Werner; Olsen, Yngvar. (2010) Automatic control of growth and density in rotifer cultures. Aquacultural Engineering. volum 43 (1).
Academic article
Attramadal, Kari; Buran, Astrid; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2010) Recirculation: Microbial Control Strategy For Intensive Marine Larviculture. Global Aquaculture Advocate.
Article

2009

Duarte, Carlos; Holmer, Marianne; Olsen, Yngvar; Soto, Doris; Marba, Nuria; Guiu, Joana; Black, Kenny; Karakassis, Ioannis. (2009) Will the Oceans Help Feed Humanity?. BioScience. volum 59 (11).
Academic article
Kjørsvik, Elin; Olsen, Cecilia; Wold, Per-Arvid; Hoehne-Reitan, Katja; Cahu, CL; Rainuzzo, J; Olsen, Atle Ivar; Oie, G; Olsen, Yngvar. (2009) Comparison of dietary phospholipids and neutral lipids on skeletal development and fatty acid composition in Atlantic cod (Gadus morhua). Aquaculture. volum 294 (3-4).
Academic article
Olsen, Yngvar. (2009) Lipids. Encyclopedia of Inland Waters.
Academic chapter/article/Conference paper
Olsen, Yngvar. (2009) Marine and Maritime Research and Education. Public Service Review Science and Technology.
Other
Øie, Gunvor; Alver, Morten; Alfredsen, Jo Arve; Kjørsvik, Elin; Attramadal, Kari; Olsen, Yngvar. (2009) Status and challenges in cod larval production. Special Publications (European Aquaculture Society).
Abstract

2008

Alver, Morten; Tennøy, Tormod; Alfredsen, Jo Arve; Øie, Gunvor; Olsen, Yngvar. (2008) Automatic control of rotifer density in larval first feeding tanks. Control Engineering Practice. volum 16.
Academic article
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. volum 365 (1).
Academic article
Olsen, Lasse Mork; Holmer, Marianne; Olsen, Yngvar. (2008) Perspectives of nutrient emission from of fish aquaculture in coastal waters. Literature review with evaluated state of knowledge. 2008.
Report
Olsen, Yngvar; Duarte, Carlos; Otterstad, Oddmund. (2008) Status and Future Perspectives of Marine Aquaculture. Aquaculture in the Ecosystem.
Academic chapter/article/Conference paper
Olsen, Yngvar; Olsen, Lasse Mork. (2008) Environmental Impact of Aquaculture on Coastal Planktonic Ecosystems. Fisheries for Global Welfare and Environment.
Academic chapter/article/Conference paper

2007

Attramadal, Kari; Olsen, Yngvar; Vadstein, Olav; Salvesen, Ingrid. (2007) Clay particles offer alternative water treatment in marine fish larvae tanks. Global Aquaculture Advocate. volum 10 (4).
Popular scientific article
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. volum 331.
Academic article

2006

Alver, Morten; Alfredsen, Jo Arve; Olsen, Yngvar. (2006) An individual-based population model for rotifer (Brachionus plicatilis) cultures. Hydrobiologia. volum 560 (1).
Academic article
Olsen, Atle Ivar; Olsen, Yngvar. (2006) CODTECH: a process oriented approach to intensive production of marine juveniles with main emphasis on cod. Årsrapport 2005. 2006.
Report
Olsen, Yngvar; Agusti, Susana; Andersen, T.; Duarte, Carlos; Gasol, J. M.; Gismervik, Ingrid; Heiskanen, Anna-Stiina.; Hoell, E.; Kuuppo, Pirjo.; Lignell, Risto; Reinertsen, Helge; Sommer, Ulrich; Stibor, H; Tamminen, Timo; Vadstein, Olav; Vaque, O; Vaqué, D; Vidal, M. (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. volum 51.
Academic article
Stibor, Herwig; Gelzleichter, Anna; Hantzsche, Florian; Sommer, Ulrich; Striebel, Maren; Vadstein, Olav; Olsen, Yngvar. (2006) Combining dialysis and dilution techniques to estimate gross growth rate of phytoplankton and grazing by micro- and mesozooplankton in situ. Archiv für Hydrobiologie. volum 167 (1-4).
Academic article
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. volum 45 (3).
Academic article

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). volum 35.
Academic article
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). volum 36.
Academic article
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. volum 27 (8).
Academic article
Olsen, Yngvar. (2005) Balance between marine resources utilization and ecosystem sustainability, with main emphasise on extensive aquaculture and coastal eutrophication - Results from the MARICULT Research Programme (1996-2000). Drainage basin nutrient input and eutrophication: an integrated approach.
Academic chapter/article/Conference paper
Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. Special Publications (European Aquaculture Society). volum 35.
Academic article
Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. 2005. ISBN 9071625192. Special Publications (European Aquaculture Society) (35).
Academic anthology/Conference proceedings
Olsen, Atle Ivar; Olsen, Yngvar. (2005) CODTECH: a process oriented approach to intensive production of marine juveniles with main emphasis on cod. Årsrapport 2004. 2005.
Report

2004

Moksness, E.; Kjørsvik, E.; Olsen, Y.. (2004) Culture of Cold-water Marine Fish. 2004. ISBN 0-85238-276-6.
Non-fiction book
Moksness, E; Kjørsvik, Elin; Olsen, Yngvar. (2004) Culture of cold-water marine fish. Blackwell Munksgaard. 2004.
Non-fiction book
Moksness, Erlend; Kjørsvik, Elin; Olsen, Yngvar. (2004) Culture of Cold-water Marine Fish. 2004. ISBN 0-85238-276-6.
Non-fiction book
Olsen, Yngvar. (2004) Live food technology of cold-water marine fish larvae. Culture of cold-water marine fish.
Academic chapter/article/Conference paper
Olsen, Yngvar; Endal, Anders. (2004) Harvesting the ocean. Encyclopedia of Life Support Systems.
Academic article
Olsen, Yngvar; van der Meeren, T; Reitan, Katja. (2004) First feeding technology. Culture of cold-water marine fish.
Academic chapter/article/Conference paper
Moksness, Erlend; Kjørsvik, Elin; Olsen, Yngvar. (2004) Culture of Cold-Water Marine Fish. 2004. ISBN 0-85238-276-6.
Non-fiction book
Olsen, Atle Ivar; Olsen, Yngvar. (2004) CODTECH: a process oriented approach to intensive production of marine juveniles with main emphasis on cod. Årsrapport 2003. 2004.
Report
Stibor, Herwig; Vadstein, Olav; Diehl, Sebastian; Gelzleichter, Anna; Hansen, Thomas; Hantzsche, Florian; Katechakis, Alexis; Lippert, Bettina; Løseth, Kjetil; Peters, Claudia; Roederer, Wendy; Sandow, Marcel; Sundt-Hansen, Line E.B.; Olsen, Yngvar. (2004) Copepods act as a switch between alternative trophic cascades in marine pelagic food webs. Ecology Letters. volum 7.
Academic article
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. volum 270.
Academic article
Vadstein, Olav; Stibor, Herwig; Lippert, Bettina; Loseth, K; Roederer, Wendy; Sundt-Hansen, Line E.B.; Olsen, Yngvar. (2004) Moderate increase in the biomass of omnivorous copepods may ease grazing control of planktonic algae. Marine Ecology Progress Series. volum 270.
Academic article

2003

Evjemo, Jan Ove; Reitan, Kjell Inge; Olsen, Yngvar. (2003) Copepods as live food organisms in the rearing of Atlantic halibut (Hippoglossus hippoglossus L.) with special emphasis on nutritional value. Aquaculture. volum 227.
Academic article
Gismervik, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2003) Marine mesocosm Zooplankton response to nutrients. Scope Newsletter. volum 53.
Abstract
Tocher, D. R.; Mourente, G; Van der Eechen, A; Evjemo, Jan Ove; Diaz, E; Wille, M; Bell, J. G.; Olsen, Yngvar. (2003) Comparative study of antioxidant defence mechanisms in marine fish fed variable levels of oxidised oil and vitamin E. Aquaculture International. volum 11.
Academic article
Handå, Aleksander; Fredheim, Arne; Lien, Egil; McClimans, Thomas; Reitan, Kjell Inge; Tangen, Karl; Olsen, Yngvar. (2003) Bruk av luftbobling og neddykket ferskvannsutslipp som metode for produksjon av giftfrie blåskjell (Artificial upwelling to combat toxic algae - in Norwegian). 2003.
Report
Handå, Aleksander; McClimans, Thomas; Reitan, Kjell Inge; Olsen, Yngvar. (2003) Utredning over mulige strategier og tiltak for produksjon av giftfrie blåskjell i norske fjorder (Strategies to combat toxic algae, in Norwegian). 2003.
Report

2002

Gismervik, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2002) Micro- and mesozooplankton response to enhanced nutrient input – a mesocosm study. Hydrobiologia.
Academic article
Gismervik, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2002) Micro- and mesozooplankton response to enhanced nutrient input - a mesocosm study. Hydrobiologia. volum 484.
Academic article

2001

Olsen, Yngvar; Reinertsen, Helge; Andersen, Tom; Gismervik, Ingrid; Duarte, Carlos; Agusti, Susana; Stibor, Herwig; Sommer, Ulrich; Lignell, Risto; Tamminen, Timo; Lancelot, Christiane; Rousseou, Veronique; Hoell, Espen; Sanderud, Knut Arvid. (2001) Comparative analysis of food webs based on flow networks: effects of nutrient supply on structure and function of coastal plankton communities. Continental Shelf Research.
Academic article
Reitan, Kjell Inge; Olsen, Yngvar; Øie, G; Reinertsen, Helge. (2001) Enhanced Nutrient Supply to Norwegian Coastal Waters: Effects on Growth of Scallops and Blue Mussels. 2001. C.C.-T. et al. (eds.) Spawning and maturation of aquaculture species, US-Japan Natural Resources Technical report (28).
Report
Tocher, D. R.; Mourente, G; Van der Eechen, A; Evjemo, Jan Ove; Diaz, E; Bell, J. G.; Geurden, I; Lavens, P; Olsen, Yngvar. (2001) Effects of dietary vitamin E on the antioxidant defence mechanisms of juvenile turbot (Scophthalamus maximus L.), halibut (Hippoglossus hippoglossus L.) and sea bream (Sparus aurata L.). Aquaculture Nutrition. volum 8.
Academic article

2000

Evjemo, Jan Ove; Danielsen, T. L.; Olsen, Yngvar. (2000) Stability of lipid, protein and n-3 fatty acids in enriched Artemia franciscana starved at different temperatures. Aquaculture. volum 193.
Academic article
Evjemo, Jan Ove; Vadstein, Olav; Olsen, Yngvar. (2000) Feeding and assimilation kinetics of Artemia franciscana fed Isochrysis galbana (clone T. Iso). Marine Biology. volum 136.
Academic article
Olsen, Atle Ivar; Olsen, Yngvar; Attramada, Yngve; Christie, K; Birkbeck, T.H.; Skjermo, Jorunn; Vadstein, Olav. (2000) Effects of short term feeding of microalgae on the bacterial flora associated with juvenile Artemia fransiscana. Aquaculture. volum 190.
Academic article
Olsen, Yngvar; Vadstein, Olav; Sunde, Magne; Storøy, Jostein. (2000) Maten vår kommer fra havet. Norsk Fiskeoppdrett.
Popular scientific article
Sakshaug, Egil; Olsen, Yngvar. (2000) Litt om økologi (A little about ecology). Trondheimsfjorden.
Academic chapter/article/Conference paper
Weltzien, Finn-Arne; Hemre, Gro Ingunn; Evjemo, Jan Ove; Olsen, Yngvar; Fyhn, Hans Jørgen. (2000) β-Hydroxybutyrate in developing nauplii of brine shrimp (Artemia franciscana K.) under fed and non-fed conditions. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology. volum 125.
Academic article
Weltzien, Finn-Arne; Hemre, Gro-Ingunn; Evjemo, Jon Olav; olsen, Yngvar; Fyhn, Hans Jørgen. (2000) B-hydroxybutyrate in developing nauplii of brine shrimp (Artemia franciscana K.) under feeding and non-feeding conditions. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology. volum 125.
Academic article

1999

Olsen, Atle Ivar; Attramadal, Yngve; Jensen, Arne; Olsen, Yngvar. (1999) Influence of size and nutritional value of Artemia franciscana on growth and quality of halibut larvae (Hippoglossus hippoglossus) during the live feed period. Aquaculture. volum 179.
Academic article
Weltzien, FA; Hemre, GI; Evjemo, JO; Olsen, Y; Fyhn, HJ. (1999) ß-Hydroxybutyrate in developing nauplii of brine shrimp (Artemia fransiscana K.) under fed and unfed conditions. Comparative biochemistry and physiology. B. Comparative biochemistry.
Academic article

1998

Olsen, Yngvar; Sandvik, Roar. (1998) Nitrogen and phosphorous supply to the coastal zone: status, possible biological effects and some future perspectives. In: KVA report 1998:1. Effec of nitrogen in the environment. KVA report.
Academic article

1997

Evjemo, J. O.; Coutteau, P.; Olsen, Yngvar; Sorgeloos, P.. (1997) The stability of docosahexanoic acid in two Artemia species following enrichment and subsequent starvation. Aquaculture. volum 155.
Academic article
Evjemo, J. O.; Olsen, Yngvar. (1997) Lipid and fatty acid content in cultivated live feed organisms compared to marine copepods. Hydrobiologia. volum 358.
Academic article
Lie, Ø.; Haaland, H.; Hemre, G. I.; Maage, A.; Lied, E.; Rosenlund, G.; Sandnes, K.; Olsen, Yngvar. (1997) Nutritional composition of rotifers following a change in diet from yeast and emulsified oil to microalgae. Aquaculture International. volum 5 (5).
Academic article
Olsen, A. I.; Jensen, A.; Evjemo, J. O.; Olsen, Yngvar. (1997) Effect of algal addition on stability of fatty acids in enriched Artemia franciscana. Hydrobiologia. volum 358.
Academic article
Olsen, Yngvar. (1997) Larval rearing technology of marine species in Norway. Hydrobiologia. volum 358.
Academic article
Rainuzzo, J. R.; Reitan, K. I.; Olsen, Yngvar. (1997) The significance of lipids at early stages of marine fish, a review. Aquaculture. volum 155.
Academic article
Rainuzzo, Jose R.; Reitan, Kjell Inge; Olsen, Yngvar. (1997) The significance of lipids at early stages of marine fish : a review. Aquaculture. volum 155.
Academic article
Reitan, K. I.; Rainuzzo, J. R.; Øie, G.; Olsen, Yngvar. (1997) A review of the nutritional effects of algae in marine fish larve. Aquaculture. volum 155.
Academic article
Reitan, Kjell Inge; Rainuzzo, Jose R.; Øie, Gunvor; Olsen, Yngvar. (1997) A review of the nutritional effects of algae in marine fish larvae. Aquaculture. volum 155.
Academic article
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. volum 5.
Academic article
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. volum 5 (1).
Academic article
Skjoldal, Hein Rune; Aure, Jan; Bakke, Torgeir; Dahl, Finn Erik; Fredriksen, Stein; Gray, John Stuart; Heldal, Mikal; Røed, Lars Petter; Olsen, Yngvar; Tangen, Karl; Molvær, Jarle. (1997) The Norwegian North Sea Coastal Water: Eutriphication; Status and trends. 1997.
Report
Øie, G.; Makridis, P.; Reitan, K. I.; Olsen, Yngvar. (1997) Protein and carbon utilization of rotifers (Brachionus plicatilis) in first feeding of turbot larvea (Scophthalmus maximus L.). Aquaculture. volum 153.
Academic article
Øie, G.; Olsen, Yngvar. (1997) Protein and lipid content of the rotifer Brachionus plicatilis during variable growth and feeding conditions. Hydrobiologia. volum 358.
Academic article
Øie, Gunvor; Makridis, Pavlos; Reitan, Kjell Inge; Olsen, Yngvar. (1997) Protein and carbon utilization of rotifers (Brachionus plicatilis) in first feeding of turbot larvae (Scophthalmus maximus L.). Aquaculture. volum 153.
Academic article
Øie, Gunvor; Makridis, Pavlos; Reitan, Kjell Inge; Olsen, Yngvar. (1997) Protein and carbon utilization of rotifers (Brachionus plicatilis) in first feeding of turbot larvae (Scophthalmus maximus L.). Aquaculture. volum 153.
Academic article

1996

Olsen, Yngvar. (1996) Forskningsprogrammet Maricult - om muligheter og begrensninger for økt produksjon av mat og råvarer i havet. Skrifter.
Academic article
Olsen, Yngvar. (1996) Status for oppdrett av piggvar. 1996. Ny Fisk.
Non-fiction book

1995

Sakshaug, Egil; Olsen, Yngvar; Hoell, E.. (1995) Maricult research programme: Fertilising marine ecosystems to harvest more. ICES CM Documents. volum 1.
Academic article
Skjermo, Jorunn; Defoort, Thomas; Dehasque, Marleen; Espevik, Terje; Olsen, Yngvar; Skjåk-Bræk, Gudmund; Sorgeloost, Patrick; Vadstein, Olav. (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. volum 5.
Academic article
Skjoldal, Hein Rune; Bakke, Torgeir; Dahl, Finn Erik; Fredriksen, Stein; Gray, John Stuart; Heldal, Mikal; Røed, Lars Petter; Olsen, Yngvar; Tangen, Karl; Molvær, Jarle. (1995) Ytre Oslofjord: Eutrofitilstand, utvikling og forventede effekter av reduserte tilførsler av næringsalter. 1995.
Report

1986

Foss, P; Partali, Vassilia; Olsen, Yngvar; Liaaen-Jensen, Synnøve. (1986) new (2R)-2-Hydroxy-4-keto-b-type-carotenoids from daphnia magna (Crustaceae). Acta Chemica Scandinavica.
Academic article

1985

Partali, Vassilia; Olsen, Yngvar; Foss, P; Liaaen-Jensen, Synnøve. (1985) Carotenoids in food chain studies. Zooplankton (Daphnia magna) response to a unialgal (Scenedesmus obliquus) carotenoid diet and two diets containing individual carotenoids. Comparative biochemistry and physiology. B. Comparative biochemistry.
Academic article

1983

Sakshaug, Egil; Andresen, K.; Myklestad, Sverre M.; Olsen, Yngvar. (1983) Nutrient status of phytoplankton communities in Norwegian waters (marine, brackish, and fresh) as revealed by their chemical composition. Journal of Plankton Research. volum 5 (2).
Academic article

Journal publications

Petersen, Magnus; Bjordal, Mari; Gjerstad, Marit; Kjerrgård, Ole Christian; Aspøy, Bjørn; James, Philip; Boéchat, Céline; Ravagnan, Elisa; Sparboe, Lars Olav; Olsen, Yngvar. (2023) Framtidas matproduksjon: Regjeringen spenner bein på egne mål. Nationen.
Feature article
Dong, Shuang-lin; Dong, Yun-wei; Cao, Ling; Verreth, Johan; Olsen, Yngvar; Liu, Wen-jing; Fang, Qi-zhi; Zhou, Yan-gen; Li, Li; Li, Jing-yu; Mu, Yong-tong; Sorgeloos, Patrick. (2022) Optimization of aquaculture sustainability through ecological intensification in China. Reviews in Aquaculture. volum 14.
Academic article
Guragain, Prashanna; Båtnes, Anna Solvang; Zobolas, John; Olsen, Yngvar; Bones, Atle M.; Winge, Per. (2022) IIb-RAD-sequencing coupled with random forest classification indicates regional population structuring and sex-specific differentiation in salmon lice (Lepeophtheirus salmonis). Ecology and Evolution. volum 12 (4).
Academic article
Vestrum, Ragnhild Inderberg; Forberg, Torunn; Luef, Birgit; Bakke, Ingrid; Winge, Per; Olsen, Yngvar; Vadstein, Olav. (2022) Commensal and opportunistic bacteria present in the microbiota in atlantic cod (Gadus morhua) larvae differentially alter the hosts’ innate immune responses. Microorganisms. volum 10 (1).
Academic article
Erbs, Stefan; James, Philip; Boéchat, Céline; Ravagnan, Elisa; Sparboe, Lars Olav; Petersen, Magnus; Gjerstad, Marit; Takeda, Brian Tsuyoshi; Skjermo, Jorunn; Bekkby, Trine; Olsen, Yngvar. (2021) Fiskeriministeren må dukke ned i taren. Bergens Tidende.
Feature article
Guragain, Prashanna; Tkachov, Max; Båtnes, Anna Solvang; Olsen, Yngvar; Winge, Per; Bones, Atle M.. (2021) Principles and Methods of Counteracting Harmful Salmon–Arthropod Interactions in Salmon Farming: Addressing Possibilities, Limitations, and Future Options. Frontiers in Marine Science. volum 8.
Academic literature review
Jevne, Lone Sunniva; Guttu, Ane Maria; Båtnes, Anna Solvang; Olsen, Yngvar; Reitan, Kjell Inge. (2021) Planktonic and Parasitic Sea Lice Abundance on Three Commercial Salmon Farms in Norway Throughout a Production Cycle. Frontiers in Marine Science. volum 8.
Academic article
Mathew, K Avarachen; Ardelan, Murat Van; Villa Gonzalez, Susana; Vadstein, Olav; Sajith Vezhapparambu, Veena; Leiknes, Øystein; Mankettikkara, Rahman; Olsen, Yngvar. (2021) Temporal dynamics of carbon sequestration in coastal North Atlantic fjord system as seen through dissolved organic matter characterisation. Science of the Total Environment. volum 782.
Academic article
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. volum 8.
Academic article
Forbord, Silje; Etter, Siv Anina; Broch, Ole Jacob; Dahlen, Vegard Rønning; Olsen, Yngvar. (2020) Initial short-term nitrate uptake in juvenile, cultivated Saccharina latissima (Phaeophyceae) of variable nutritional state. Aquatic Botany. volum 168.
Academic article
Forbord, Silje; Matsson, Sanna; Brodahl, Guri Ellila; Bluhm, Bodil; Broch, Ole Jacob; Handå, Aleksander; Metaxas, Anna; Skjermo, Jorunn; Steinhovden, Kristine; Olsen, Yngvar. (2020) Latitudinal, seasonal and depth-dependent variation in growth, chemical composition and biofouling of cultivated Saccharina latissima (Phaeophyceae) along the Norwegian coast. Journal of Applied Phycology. volum 32.
Academic article
Guragain, Prashanna; Sporsheim, Bjørnar; Skjesol, Astrid; Båtnes, Anna Solvang; Olsen, Yngvar; Bones, Atle M.; Winge, Per. (2020) Phenylalanine Hydroxylase RNAi Knockdown Negatively Affects Larval Development, Molting and Swimming Performance of Salmon Lice. Frontiers in Marine Science. volum 7 (608463).
Academic article
Jevne, Lone Sunniva; Forbord, Silje; Olsen, Yngvar. (2020) The Effect of Nutrient Availability and Light Conditions on the Growth and Intracellular Nitrogen Components of Land-Based Cultivated Saccharina latissima (Phaeophyta). Frontiers in Marine Science. volum 7 (557460).
Academic article
Jevne, Lone Sunniva; Øvrelid, Margrete Slåtsve; Hagemann, Andreas; Bloecher, Nina; Steinhovden, Kristine; Båtnes, Anna Solvang; Olsen, Yngvar; Reitan, Kjell Inge. (2020) Biofouling on salmon pen nets and cleaner fish shelters does not harbor planktonic stages of sea lice. Frontiers in Marine Science. volum 7 (727).
Academic article
Jin, Yang; Olsen, Rolf Erik; Harvey, Thomas Nelson; Østensen, Mari-Ann; Li, Keshuai; Santi, Nina; Vadstein, Olav; Bones, Atle M.; Vik, Jon Olav; Sandve, Simen Rød; Olsen, Yngvar. (2020) Comparative transcriptomics reveals domestication‐associated features of Atlantic salmon lipid metabolism. Molecular Ecology. volum 29 (10).
Academic article
Bergvik, Maria; Stensås, Lene; Handå, Aleksander; Reitan, Kjell Inge; Strand, Øivind; Olsen, Yngvar. (2019) Incorporation of feed and fecal waste from salmon aquaculture in great scallops (Pecten Maximus) co-fed by different algal concentrations. Frontiers in Marine Science. volum 5.
Academic article
Jalili, Mahsa; Jin, Yang; Bones, Atle M.; Olsen, Yngvar; Vadstein, Olav; Østensen, Mari-Ann; Buonocore, Francesco; Gerdol, Marco; Pallavicini, Alberto; Scapigliati, Giuseppe. (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. volum 9 (27).
Academic article
Jin, Yang; Angell, Inga Leena; Sandve, Simen Rød; Snipen, Lars-Gustav; Olsen, Yngvar; Rudi, Knut. (2019) Atlantic salmon raised with diets low in long-chain polyunsaturated n-3 fatty acids in freshwater have a Mycoplasma-dominated gut microbiota at sea. Aquaculture Environment Interactions. volum 11.
Academic article
Sanchez, Nicolas; Peterson, Claire Katja; Villa Gonzalez, Susana; 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. volum 209.
Academic article
Fossberg, Julia; Forbord, Silje; Broch, Ole Jacob; Malzahn, Arne; Jansen, Henrice M; Handå, Aleksander; Førde, Henny; Bergvik, Maria; Fleddum, Anne Lise; Skjermo, Jorunn; Olsen, Yngvar. (2018) The potential for upscaling kelp (Saccharina latissima) cultivation in salmon-driven integrated multi-trophic aquaculture (IMTA). Frontiers in Marine Science. volum 9:418.
Academic article
Jin, Yang; Olsen, Rolf Erik; Gillard, Gareth B.; Østensen, Mari-Ann; Korsvoll, Sven A.; Santi, Nina; Vik, Jon Olav; Sandve, Simen Rød; Olsen, Yngvar. (2018) A systemic study of lipid metabolism regulation in salmon fingerlings and early juveniles fed plant oil. British Journal of Nutrition. volum 120 (6).
Academic article
Jin, Yang; Olsen, Rolf Erik; Østensen, Mari-Ann; Gillard, Gareth Benjamin; Korsvoll, Sven Arild; Santi, Nina; Gjuvsland, Arne Bjørke; Vik, Jon Olav; Torgersen, Jacob Seilø; Sandve, Simen Rød; Olsen, Yngvar. (2018) Transcriptional development of phospholipid and lipoprotein metabolism in different intestinal regions of Atlantic salmon (Salmo salar) fry. BMC Genomics. volum 19.
Academic article
Jin, Yang; Olsen, Rolf Erik; Østensen, Mari-Ann; Gillard, Gareth Benjamin; Li, Keshuai; Harvey, Thomas Nelson; Santi, Nina; Vadstein, Olav; Vik, Jon Olav; Sandve, Simen Rød; Olsen, Yngvar. (2018) Transcriptional regulation of lipid metabolism when salmon fry switches from endogenous to exogenous feeding. Aquaculture. volum 503.
Academic article
Sanchez, Nicolas; Brown, Eunice Nana Adjoa; Olsen, Yngvar; Vadstein, Olav; Iriarte, Jose Luis; Gonzalez, Humberto E.; Ardelan, Murat Van. (2018) Effect of Siderophore on Iron Availability in a Diatom and a Dinoflagellate Species: Contrasting Response in Associated Bacteria. Frontiers in Marine Science. volum 5 (118).
Academic article
Tsagaraki, Tatiana Margo; Pree, Bernadette; Leiknes, Øystein; Larsen, Aud; Bratbak, Gunnar; Øvreås, Lise; Egge, Jorun Karin; Spanek, Roman; Paulsen, Maria Lund; Olsen, Yngvar; Vadstein, Olav; Thingstad, T. Frede. (2018) Bacterial community composition responds to changes in copepod abundance and alters ecosystem function in an Arctic mesocosm study. The ISME Journal. volum 12 (11).
Academic article
Vadstein, Olav; Attramadal, Kari; Bakke, Ingrid; Forberg, Torunn; Olsen, Yngvar; Verdegem, Marc; Giatsis, Cristos; Skjermo, Jorunn; Aasen, Inga Marie; Gatesoupe, François-Joel; Dierckens, Kristof; Sorgeloos, Patrick; Bossier, Peter. (2018) Managing the microbial community of marine fish larvae: a holistic perspective for larviculture. Frontiers in Microbiology. volum 9.
Academic literature review
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. volum 9.
Academic literature review
Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.; Vadstein, Olav; Bakke, Ingrid. (2018) Rearing water treatment induces microbial selection influencing the microbiota and pathogen associated transcripts of Cod (Gadus morhua) Larvae. Frontiers in Microbiology. volum 9 (MAY).
Academic article
Olsen, Lasse Mork; Hernandez, Klaudia; Ardelan, Murat Van; Iriarte, Jose Luis; Bizsel, Can; Olsen, Yngvar. (2017) Responses in bacterial community structure to waste nutrients from aquaculture: an in situ microcosm experiment in a Chilean fjord. Aquaculture Environment Interactions. volum 9.
Academic article
Olsen, Lasse Mork; Hernandez, Klaudia; Ardelan, Murat Van; Iriarte, Jose Luis; Bizsel, Can; Olsen, Yngvar. (2017) Responses in the bacterial community structure to waste nutrients from aquaculture: an in situ microcosm experiment in a Chilean fjord. Aquaculture Environment Interactions. volum 9 (1).
Academic article
Forberg, Torunn; Sjulstad, Eli Bjørnø; Bakke, Ingrid; Olsen, Yngvar; Hagiwara, Atsushi; Sakakura, Yoshitaka; Vadstein, Olav. (2016) Correlation between microbiota and growth in Mangrove Killifish (Kryptolebias marmoratus) and Atlantic cod (Gadus morhua). Scientific Reports. volum 6.
Academic article
Hagemann, Andreas; Vorren, Sigbjørn Hjetleland; Attramadal, Yngve; Evjemo, Jan Ove; Olsen, Yngvar. (2016) Effects of different wavelengths and intensities of visible light on the hatching success of Acartia tonsa Dana eggs. Aquaculture International. volum Published ahead of print.
Academic article
Hagemann, Andreas; Øie, Gunvor; Evjemo, Jan Ove; Olsen, Yngvar. (2016) Effects of light and short-term temperature elevation on the 48-h hatching success of cold-stored Acartia tonsa Dana eggs. Aquaculture International. volum 24 (1).
Academic article
Jin, Yang; Li, Keshuai; Olsen, Yngvar. (2016) Time kinetics of fatty acid changes in phospholipids following enrichment and starvation of Artemia franciscana with a main focus on docosahexaenoic acid. Aquaculture Nutrition. volum 22 (1).
Academic article
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. volum 3:33.
Academic article
Jansen, Henrice M; Handå, Aleksander; Cranford, Peter; Bannister, Raymond; Bergvik, Maria; Broch, Ole Jacob; Forbord, Silje; Husa, Vivian; Olsen, Yngvar; Reitan, Kjell Inge; Skjermo, Jorunn; Strand, Øivind. (2015) EXPLOITATION OF NUTRIENTS FROM SALMON AQUACULTURE: WHAT IS THE POTENTIAL FOR IMTA IN NORWAY?. Journal of Shellfish Research. volum 34 (2).
Short communication
Li, Keshuai; Kjørsvik, Elin; Bergvik, Maria; Olsen, Yngvar. (2015) Manipulation of the fatty acid composition of phosphatidylcholine and phosphatidylethanolamine in rotifers Brachionus Nevada and Brachionus Cayman. Aquaculture Nutrition. volum 21 (1).
Academic article
Li, Keshuai; Olsen, Rolf Erik; Østensen, Mari-Ann; Altin, Dag; Kjørsvik, Elin; Olsen, Yngvar. (2015) Atlantic cod (Gadus morhua) larvae can biosynthesis phospholipid de novo from 2-oleoyl-glycerol and glycerol precursors. Fish Physiology & Biochemistry. volum 42 (1).
Academic article
Li, Keshuai; Olsen, Yngvar. (2015) Effect of enrichment time and dietary DHA and non-highly unsaturated fatty acid composition on the efficiency of DHA enrichment in phospholipid of rotifer (Brachionus Cayman). Aquaculture. volum 446.
Academic article
Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bones, Atle M.; Vadstein, Olav; Kjørsvik, Elin; Olsen, Yngvar. (2015) Gene regulation of lipid and phospholipid metabolism in Atlantic cod (Gadus morhua) larvae. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology. volum 190.
Academic article
Olsen, Yngvar. (2015) How can mariculture better help feed humanity?. Frontiers in Marine Science. volum 2 (26).
Academic article
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. volum 432.
Academic article
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. volum 85.
Academic article
Luong, Anh D; De Laender, Frederik; 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. volum 493.
Academic article
Olsen, Lasse Mork; Hernandez, Klaudia; Ardelan, Murat Van; Iriarte, Jose Luis; Sanchez, Nicolas; Gonzalez, Humberto E.; Tokle, Nils Egil; Olsen, Yngvar. (2014) Responses in the microbial food web to increased rates of nutrient supply in a southern Chilean fjord: Possible implications of cage aquaculture. Aquaculture Environment Interactions. volum 6 (1).
Academic article
Olsen, Yngvar; Evjemo, Jan Ove; Kjørsvik, Elin; Larssen, Harald; Li, Keshuai; Overrein, Ingrid; Rainuzzo, Jose R.. (2014) DHA content in dietary phospholipids affects DHA content in phospholipids of cod larvae and larval performance. Aquaculture. volum 428-429.
Academic article
Olsen, Yngvar; Reinertsen, Helge; Sommer, Ulrich; Vadstein, Olav. (2014) 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. volum 473-474 (March).
Academic article
Wang, Xinxin; Broch, Ole Jacob; Forbord, Silje; Handå, Aleksander; Skjermo, Jorunn; Reitan, Kjell Inge; Vadstein, Olav; Olsen, Yngvar. (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. volum 26 (4).
Academic article
Blöcher, Nina; Olsen, Yngvar; Günther, Jana. (2013) Variability of biofouling communities on fish cage nets: A 1-year field study at a Norwegian salmon farm. Aquaculture. volum 416-417.
Academic article
Broch, Ole Jacob; Ellingsen, Ingrid H.; Forbord, Silje; Wang, Xinxin; Volent, Zsolt; Alver, Morten; Handå, Aleksander; Andresen, Kjersti; Slagstad, Dag; Reitan, Kjell Inge; Olsen, Yngvar; Skjermo, Jorunn. (2013) Modelling the cultivation and bioremediation potential of the kelp Saccharina latissima in close proximity to an exposed salmon farm in Norway. Aquaculture Environment Interactions. volum 4 (2).
Academic article
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. volum 58.
Academic article
Handå, Aleksander; Forbord, Silje; Wang, Xinxin; Broch, Ole Jacob; Dahle, Stine Veronica Wiborg; Størseth, Trond Røvik; Reitan, Kjell Inge; Olsen, Yngvar; Skjermo, Jorunn. (2013) Seasonal- and depth-dependent growth of cultivated kelp (Saccharina latissima) in close proximity to salmon (Salmo salar) aquaculture in Norway. Aquaculture. volum 414-415.
Academic article
Handå, Aleksander; McClimans, Thomas; Reitan, Kjell Inge; Knutsen, Øyvind; Tangen, Karl; Olsen, Yngvar. (2013) Artificial upwelling to stimulate growth of non-toxic algae in a habitat for mussel farming. Aquaculture Research. volum 45.
Academic article
Handå, Aleksander; Nordtug, Trond; Halstensen, Stein; Olsen, Anders Johny; Reitan, Kjell Inge; Olsen, Yngvar; Reinertsen, Helge. (2013) Temperature-dependent feed requirements in farmed blue mussels (Mytilus edulis L.) estimated from soft tissue growth and oxygen consumption and ammonia-N excretion. Aquaculture Research. volum 44 (4).
Academic article
Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bakke, Ingrid; Bones, Atle M.; Vadstein, Olav; Kjørsvik, Elin; Olsen, Yngvar. (2013) Gene regulation of Atlantic cod (Gadus morhua) larvae with focus on lipid digestion and phospholipid metabolism. Communications in agricultural and applied biological sciences. volum 78 (4).
Academic article
Mühlroth, Alice; Li, Keshuai; Røkke, Gunvor; Winge, Per; Olsen, Yngvar; Hohmann-Marriott, Martin Frank; Vadstein, Olav; Bones, Atle M.. (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. volum 11 (11).
Academic literature review
Olsen, Yngvar; Almås, Karl Andreas. (2013) Laks med god smak. Adresseavisen.
Feature article
Vadstein, Olav; Bergh, Øivind; Gatesoupe, Francois-Joel; Galindo-Villegas, Jorge; Mulero, Victoriano; Picchietti, Simona; Scapigliati, Giuseppe; Makridis, Pavlos; Olsen, Yngvar; Dierckens, Kristof; Defoirdt, Tom; Boon, Nico; De Schryver, Peter; Bossier, Peter. (2013) Microbiology and immunology of fish larvae. Reviews in Aquaculture. volum 53.
Academic literature review
Vadstein, Olav; Olsen, Yngvar. (2013) Trenger et kraftløft for fôr. Fiskaren.
publications.INTERVJUSKRIFTL
Wang, Xinxin; Andresen, Kjersti; Handå, Aleksander; Jensen, Bjørn; Reitan, Kjell Inge; Olsen, Yngvar. (2013) Chemical composition and release rate of waste discharge from an Atlantic salmon farm with an evaluation of IMTA feasibility. Aquaculture Environment Interactions. volum 4.
Academic article
Attramadal, Kari; Salvesen, Ingrid; Xue, Renyu; Øie, Gunvor; Størseth, Trond Røvik; Vadstein, Olav; Olsen, Yngvar. (2012) Recirculation as a possible microbial control strategy in the production of marine larvae. Aquacultural Engineering. volum 46.
Academic article
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. volum 49.
Academic article
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. volum 330.
Academic article
Bergvik, Maria; Leiknes, Øystein; Altin, Dag; Dahl, Kjersti Rennan; Olsen, Yngvar. (2012) Dynamics of the Lipid Content and Biomass of Calanus finmarchicus (copepodite V) in a Norwegian Fjord. Lipids. volum 47 (9).
Academic article
Fredriksen, Stein; Husa, Vivian; Skjoldal, Hein Rune; Sjøtun, Kjersti; Christie, Hartvig C; Dale, Trine; Olsen, Yngvar. (2012) Ingen regional overgjødsling på Vestlandet. Havforskningsrapporten.
Popular scientific article
Handå, Aleksander; Min, Hojune; Wang, Xinxin; Broch, Ole Jacob; Reitan, Kjell Inge; Reinertsen, Helge; Olsen, Yngvar. (2012) Incorporation of fish feed and growth of blue mussels (Mytilus edulis) in close proximity to salmon (Salmo salar) aquaculture: Implications for integrated multi-trophic aquaculture in Norwegian coastal waters. Aquaculture. volum 356.
Academic article
Handå, Aleksander; Ranheim, Anders Wanvik; Olsen, Anders Johny; Altin, Dag; Reitan, Kjell Inge; Olsen, Yngvar; Reinertsen, Helge. (2012) Incorporation of salmon fish feed and feces components in mussels (Mytilus edulis): Implications for integrated multi-trophic aquaculture in cool-temperate North Atlantic waters. Aquaculture. volum 370-371.
Academic article
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. volum 447.
Academic article
Wang, Xinxin; Olsen, Lasse Mork; Reitan, Kjell Inge; Olsen, Yngvar. (2012) Discharge of nutrient wastes from salmon farms: environmental effects, and potential for integrated multi-trophic aquaculture. Aquaculture Environment Interactions. volum 2 (3).
Academic literature review
Handå, Aleksander; Alver, Morten; Edvardsen, Christian Vik; Halstensen, Stein; Olsen, Anders Johny; Øie, Gunvor; Reitan, Kjell Inge; Olsen, Yngvar; Reinertsen, Helge. (2011) Growth of farmed blue mussels (Mytilus edulis L.) in a Norwegian coastal area; comparison of food proxies by DEB modeling. Journal of Sea Research. volum 66 (4).
Academic article
Olsen, Yngvar. (2011) Resources for fish feed in future mariculture. Aquaculture Environment Interactions. volum 1 (3).
Academic article
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. volum 436.
Academic article
Alver, Morten; Alfredsen, Jo Arve; Øie, Gunvor; Storøy, Werner; Olsen, Yngvar. (2010) Automatic control of growth and density in rotifer cultures. Aquacultural Engineering. volum 43 (1).
Academic article
Attramadal, Kari; Buran, Astrid; Øie, Gunvor; Vadstein, Olav; Olsen, Yngvar. (2010) Recirculation: Microbial Control Strategy For Intensive Marine Larviculture. Global Aquaculture Advocate.
Article
Duarte, Carlos; Holmer, Marianne; Olsen, Yngvar; Soto, Doris; Marba, Nuria; Guiu, Joana; Black, Kenny; Karakassis, Ioannis. (2009) Will the Oceans Help Feed Humanity?. BioScience. volum 59 (11).
Academic article
Kjørsvik, Elin; Olsen, Cecilia; Wold, Per-Arvid; Hoehne-Reitan, Katja; Cahu, CL; Rainuzzo, J; Olsen, Atle Ivar; Oie, G; Olsen, Yngvar. (2009) Comparison of dietary phospholipids and neutral lipids on skeletal development and fatty acid composition in Atlantic cod (Gadus morhua). Aquaculture. volum 294 (3-4).
Academic article
Øie, Gunvor; Alver, Morten; Alfredsen, Jo Arve; Kjørsvik, Elin; Attramadal, Kari; Olsen, Yngvar. (2009) Status and challenges in cod larval production. Special Publications (European Aquaculture Society).
Abstract
Alver, Morten; Tennøy, Tormod; Alfredsen, Jo Arve; Øie, Gunvor; Olsen, Yngvar. (2008) Automatic control of rotifer density in larval first feeding tanks. Control Engineering Practice. volum 16.
Academic article
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. volum 365 (1).
Academic article
Attramadal, Kari; Olsen, Yngvar; Vadstein, Olav; Salvesen, Ingrid. (2007) Clay particles offer alternative water treatment in marine fish larvae tanks. Global Aquaculture Advocate. volum 10 (4).
Popular scientific article
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. volum 331.
Academic article
Alver, Morten; Alfredsen, Jo Arve; Olsen, Yngvar. (2006) An individual-based population model for rotifer (Brachionus plicatilis) cultures. Hydrobiologia. volum 560 (1).
Academic article
Olsen, Yngvar; Agusti, Susana; Andersen, T.; Duarte, Carlos; Gasol, J. M.; Gismervik, Ingrid; Heiskanen, Anna-Stiina.; Hoell, E.; Kuuppo, Pirjo.; Lignell, Risto; Reinertsen, Helge; Sommer, Ulrich; Stibor, H; Tamminen, Timo; Vadstein, Olav; Vaque, O; Vaqué, D; Vidal, M. (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. volum 51.
Academic article
Stibor, Herwig; Gelzleichter, Anna; Hantzsche, Florian; Sommer, Ulrich; Striebel, Maren; Vadstein, Olav; Olsen, Yngvar. (2006) Combining dialysis and dilution techniques to estimate gross growth rate of phytoplankton and grazing by micro- and mesozooplankton in situ. Archiv für Hydrobiologie. volum 167 (1-4).
Academic article
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. volum 45 (3).
Academic article
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). volum 35.
Academic article
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). volum 36.
Academic article
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. volum 27 (8).
Academic article
Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. Special Publications (European Aquaculture Society). volum 35.
Academic article
Olsen, Yngvar; Endal, Anders. (2004) Harvesting the ocean. Encyclopedia of Life Support Systems.
Academic article
Stibor, Herwig; Vadstein, Olav; Diehl, Sebastian; Gelzleichter, Anna; Hansen, Thomas; Hantzsche, Florian; Katechakis, Alexis; Lippert, Bettina; Løseth, Kjetil; Peters, Claudia; Roederer, Wendy; Sandow, Marcel; Sundt-Hansen, Line E.B.; Olsen, Yngvar. (2004) Copepods act as a switch between alternative trophic cascades in marine pelagic food webs. Ecology Letters. volum 7.
Academic article
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. volum 270.
Academic article
Vadstein, Olav; Stibor, Herwig; Lippert, Bettina; Loseth, K; Roederer, Wendy; Sundt-Hansen, Line E.B.; Olsen, Yngvar. (2004) Moderate increase in the biomass of omnivorous copepods may ease grazing control of planktonic algae. Marine Ecology Progress Series. volum 270.
Academic article
Evjemo, Jan Ove; Reitan, Kjell Inge; Olsen, Yngvar. (2003) Copepods as live food organisms in the rearing of Atlantic halibut (Hippoglossus hippoglossus L.) with special emphasis on nutritional value. Aquaculture. volum 227.
Academic article
Gismervik, Ingrid; Vadstein, Olav; Olsen, Yngvar. (2003) Marine mesocosm Zooplankton response to nutrients. Scope Newsletter. volum 53.
Abstract
Tocher, D. R.; Mourente, G; Van der Eechen, A; Evjemo, Jan Ove; Diaz, E; Wille, M; Bell, J. G.; Olsen, Yngvar. (2003) Comparative study of antioxidant defence mechanisms in marine fish fed variable levels of oxidised oil and vitamin E. Aquaculture International. volum 11.
Academic article
Gismervik, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2002) Micro- and mesozooplankton response to enhanced nutrient input – a mesocosm study. Hydrobiologia.
Academic article
Gismervik, Ingrid; Olsen, Yngvar; Vadstein, Olav. (2002) Micro- and mesozooplankton response to enhanced nutrient input - a mesocosm study. Hydrobiologia. volum 484.
Academic article
Olsen, Yngvar; Reinertsen, Helge; Andersen, Tom; Gismervik, Ingrid; Duarte, Carlos; Agusti, Susana; Stibor, Herwig; Sommer, Ulrich; Lignell, Risto; Tamminen, Timo; Lancelot, Christiane; Rousseou, Veronique; Hoell, Espen; Sanderud, Knut Arvid. (2001) Comparative analysis of food webs based on flow networks: effects of nutrient supply on structure and function of coastal plankton communities. Continental Shelf Research.
Academic article
Tocher, D. R.; Mourente, G; Van der Eechen, A; Evjemo, Jan Ove; Diaz, E; Bell, J. G.; Geurden, I; Lavens, P; Olsen, Yngvar. (2001) Effects of dietary vitamin E on the antioxidant defence mechanisms of juvenile turbot (Scophthalamus maximus L.), halibut (Hippoglossus hippoglossus L.) and sea bream (Sparus aurata L.). Aquaculture Nutrition. volum 8.
Academic article
Evjemo, Jan Ove; Danielsen, T. L.; Olsen, Yngvar. (2000) Stability of lipid, protein and n-3 fatty acids in enriched Artemia franciscana starved at different temperatures. Aquaculture. volum 193.
Academic article
Evjemo, Jan Ove; Vadstein, Olav; Olsen, Yngvar. (2000) Feeding and assimilation kinetics of Artemia franciscana fed Isochrysis galbana (clone T. Iso). Marine Biology. volum 136.
Academic article
Olsen, Atle Ivar; Olsen, Yngvar; Attramada, Yngve; Christie, K; Birkbeck, T.H.; Skjermo, Jorunn; Vadstein, Olav. (2000) Effects of short term feeding of microalgae on the bacterial flora associated with juvenile Artemia fransiscana. Aquaculture. volum 190.
Academic article
Olsen, Yngvar; Vadstein, Olav; Sunde, Magne; Storøy, Jostein. (2000) Maten vår kommer fra havet. Norsk Fiskeoppdrett.
Popular scientific article
Weltzien, Finn-Arne; Hemre, Gro Ingunn; Evjemo, Jan Ove; Olsen, Yngvar; Fyhn, Hans Jørgen. (2000) β-Hydroxybutyrate in developing nauplii of brine shrimp (Artemia franciscana K.) under fed and non-fed conditions. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology. volum 125.
Academic article
Weltzien, Finn-Arne; Hemre, Gro-Ingunn; Evjemo, Jon Olav; olsen, Yngvar; Fyhn, Hans Jørgen. (2000) B-hydroxybutyrate in developing nauplii of brine shrimp (Artemia franciscana K.) under feeding and non-feeding conditions. Comparative Biochemistry and Physiology - Part B: Biochemistry & Molecular Biology. volum 125.
Academic article
Olsen, Atle Ivar; Attramadal, Yngve; Jensen, Arne; Olsen, Yngvar. (1999) Influence of size and nutritional value of Artemia franciscana on growth and quality of halibut larvae (Hippoglossus hippoglossus) during the live feed period. Aquaculture. volum 179.
Academic article
Weltzien, FA; Hemre, GI; Evjemo, JO; Olsen, Y; Fyhn, HJ. (1999) ß-Hydroxybutyrate in developing nauplii of brine shrimp (Artemia fransiscana K.) under fed and unfed conditions. Comparative biochemistry and physiology. B. Comparative biochemistry.
Academic article
Olsen, Yngvar; Sandvik, Roar. (1998) Nitrogen and phosphorous supply to the coastal zone: status, possible biological effects and some future perspectives. In: KVA report 1998:1. Effec of nitrogen in the environment. KVA report.
Academic article
Evjemo, J. O.; Coutteau, P.; Olsen, Yngvar; Sorgeloos, P.. (1997) The stability of docosahexanoic acid in two Artemia species following enrichment and subsequent starvation. Aquaculture. volum 155.
Academic article
Evjemo, J. O.; Olsen, Yngvar. (1997) Lipid and fatty acid content in cultivated live feed organisms compared to marine copepods. Hydrobiologia. volum 358.
Academic article
Lie, Ø.; Haaland, H.; Hemre, G. I.; Maage, A.; Lied, E.; Rosenlund, G.; Sandnes, K.; Olsen, Yngvar. (1997) Nutritional composition of rotifers following a change in diet from yeast and emulsified oil to microalgae. Aquaculture International. volum 5 (5).
Academic article
Olsen, A. I.; Jensen, A.; Evjemo, J. O.; Olsen, Yngvar. (1997) Effect of algal addition on stability of fatty acids in enriched Artemia franciscana. Hydrobiologia. volum 358.
Academic article
Olsen, Yngvar. (1997) Larval rearing technology of marine species in Norway. Hydrobiologia. volum 358.
Academic article
Rainuzzo, J. R.; Reitan, K. I.; Olsen, Yngvar. (1997) The significance of lipids at early stages of marine fish, a review. Aquaculture. volum 155.
Academic article
Rainuzzo, Jose R.; Reitan, Kjell Inge; Olsen, Yngvar. (1997) The significance of lipids at early stages of marine fish : a review. Aquaculture. volum 155.
Academic article
Reitan, K. I.; Rainuzzo, J. R.; Øie, G.; Olsen, Yngvar. (1997) A review of the nutritional effects of algae in marine fish larve. Aquaculture. volum 155.
Academic article
Reitan, Kjell Inge; Rainuzzo, Jose R.; Øie, Gunvor; Olsen, Yngvar. (1997) A review of the nutritional effects of algae in marine fish larvae. Aquaculture. volum 155.
Academic article
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. volum 5.
Academic article
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. volum 5 (1).
Academic article
Øie, G.; Makridis, P.; Reitan, K. I.; Olsen, Yngvar. (1997) Protein and carbon utilization of rotifers (Brachionus plicatilis) in first feeding of turbot larvea (Scophthalmus maximus L.). Aquaculture. volum 153.
Academic article
Øie, G.; Olsen, Yngvar. (1997) Protein and lipid content of the rotifer Brachionus plicatilis during variable growth and feeding conditions. Hydrobiologia. volum 358.
Academic article
Øie, Gunvor; Makridis, Pavlos; Reitan, Kjell Inge; Olsen, Yngvar. (1997) Protein and carbon utilization of rotifers (Brachionus plicatilis) in first feeding of turbot larvae (Scophthalmus maximus L.). Aquaculture. volum 153.
Academic article
Øie, Gunvor; Makridis, Pavlos; Reitan, Kjell Inge; Olsen, Yngvar. (1997) Protein and carbon utilization of rotifers (Brachionus plicatilis) in first feeding of turbot larvae (Scophthalmus maximus L.). Aquaculture. volum 153.
Academic article
Olsen, Yngvar. (1996) Forskningsprogrammet Maricult - om muligheter og begrensninger for økt produksjon av mat og råvarer i havet. Skrifter.
Academic article
Sakshaug, Egil; Olsen, Yngvar; Hoell, E.. (1995) Maricult research programme: Fertilising marine ecosystems to harvest more. ICES CM Documents. volum 1.
Academic article
Skjermo, Jorunn; Defoort, Thomas; Dehasque, Marleen; Espevik, Terje; Olsen, Yngvar; Skjåk-Bræk, Gudmund; Sorgeloost, Patrick; Vadstein, Olav. (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. volum 5.
Academic article
Foss, P; Partali, Vassilia; Olsen, Yngvar; Liaaen-Jensen, Synnøve. (1986) new (2R)-2-Hydroxy-4-keto-b-type-carotenoids from daphnia magna (Crustaceae). Acta Chemica Scandinavica.
Academic article
Partali, Vassilia; Olsen, Yngvar; Foss, P; Liaaen-Jensen, Synnøve. (1985) Carotenoids in food chain studies. Zooplankton (Daphnia magna) response to a unialgal (Scenedesmus obliquus) carotenoid diet and two diets containing individual carotenoids. Comparative biochemistry and physiology. B. Comparative biochemistry.
Academic article
Sakshaug, Egil; Andresen, K.; Myklestad, Sverre M.; Olsen, Yngvar. (1983) Nutrient status of phytoplankton communities in Norwegian waters (marine, brackish, and fresh) as revealed by their chemical composition. Journal of Plankton Research. volum 5 (2).
Academic article

Books

Olsen, Yngvar; Slagstad, Dag; Vadstein, Olav. (2005) Assimilative carrying capacity: Contribution and impact on the pelagic system. 2005. ISBN 9071625192. Special Publications (European Aquaculture Society) (35).
Academic anthology/Conference proceedings
Moksness, E.; Kjørsvik, E.; Olsen, Y.. (2004) Culture of Cold-water Marine Fish. 2004. ISBN 0-85238-276-6.
Non-fiction book
Moksness, E; Kjørsvik, Elin; Olsen, Yngvar. (2004) Culture of cold-water marine fish. Blackwell Munksgaard. 2004.
Non-fiction book
Moksness, Erlend; Kjørsvik, Elin; Olsen, Yngvar. (2004) Culture of Cold-water Marine Fish. 2004. ISBN 0-85238-276-6.
Non-fiction book
Moksness, Erlend; Kjørsvik, Elin; Olsen, Yngvar. (2004) Culture of Cold-Water Marine Fish. 2004. ISBN 0-85238-276-6.
Non-fiction book
Olsen, Yngvar. (1996) Status for oppdrett av piggvar. 1996. Ny Fisk.
Non-fiction book

Part of book/report

Li, Keshuai; Olsen, Rolf Erik; Jin, Yang; Olsen, Yngvar. (2018) Phospholipids in Marine Larval Rearing. Emerging Issues in Fish Larvae Research.
Chapter
Olsen, Yngvar. (2013) A synthesis of the technical, environmental, spatial and governance issues and opportunities. Expanding mariculture father offshore. Technical, environmental, spatial and governance challenges.
Chapter
Olsen, Yngvar. (2013) Ecological principles and options for seafood production. Food from the Ocean - Norway's Opportunities.
Academic chapter/article/Conference paper
Olsen, Yngvar; Tokle, Nils Egil; Vadstein, Olav. (2012) Hvordan forvalte vannmassene? Om samspillet mellom næringssalt-utslipp og det planktoniske økosystemet. Kampen om plass på kysten : interesser og utviklingstrekk i kystsoneplanleggingen.
Academic chapter/article/Conference paper
Øie, Gunvor; Reitan, Kjell Inge; Evjemo, Jan Ove; Støttrup, Josianne; Olsen, Yngvar. (2011) Live Feeds. Larval Fish Nutrition.
Academic chapter/article/Conference paper
Olsen, Yngvar. (2009) Lipids. Encyclopedia of Inland Waters.
Academic chapter/article/Conference paper
Olsen, Yngvar. (2009) Marine and Maritime Research and Education. Public Service Review Science and Technology.
Other
Olsen, Yngvar; Duarte, Carlos; Otterstad, Oddmund. (2008) Status and Future Perspectives of Marine Aquaculture. Aquaculture in the Ecosystem.
Academic chapter/article/Conference paper
Olsen, Yngvar; Olsen, Lasse Mork. (2008) Environmental Impact of Aquaculture on Coastal Planktonic Ecosystems. Fisheries for Global Welfare and Environment.
Academic chapter/article/Conference paper
Olsen, Yngvar. (2005) Balance between marine resources utilization and ecosystem sustainability, with main emphasise on extensive aquaculture and coastal eutrophication - Results from the MARICULT Research Programme (1996-2000). Drainage basin nutrient input and eutrophication: an integrated approach.
Academic chapter/article/Conference paper
Olsen, Yngvar. (2004) Live food technology of cold-water marine fish larvae. Culture of cold-water marine fish.
Academic chapter/article/Conference paper
Olsen, Yngvar; van der Meeren, T; Reitan, Katja. (2004) First feeding technology. Culture of cold-water marine fish.
Academic chapter/article/Conference paper
Sakshaug, Egil; Olsen, Yngvar. (2000) Litt om økologi (A little about ecology). Trondheimsfjorden.
Academic chapter/article/Conference paper

Report

Hancke, Kasper; Broch, Ole Jacob; Olsen, Yngvar; Bekkby, Trine; Hansen, Pia Kupka; Fieler, Reinhold; Attard, Karl; Borgersen, Gunhild; Christie, Hartvig C. (2021) Miljøpåvirkninger av taredyrking og forslag til utvikling av overvåkingsprogram. 2021. NIVA-rapport (7589).
Report
Løland, Anders; Omholt, Stig William; Lamberg, Anders; Kristensen, Torstein; Urke, Henning Andre; Olsen, Yngvar. (2016) Metodevurdering for registrering rømt oppdrettslaks. 2016. ISBN 978-82-998249-3-4.
Report
Skjermo, Jorunn; Aasen, Inga Marie; Arff, Johanne; Broch, Ole Jacob; Carvajal, Ana Karina; Christie, Hartvig C; Forbord, Silje; Olsen, Yngvar; Reitan, Kjell Inge; Rustad, Turid; Sandquist, Judit; Solbakken, Roar; Steinhovden, Kristine; Wittgens, Bernd; Wolff, Robert; Handå, Aleksander. (2014) A new Norwegian bioeconomy based on cultivation and processing of seaweeds: Opportunities and R&D needs. 2014. ISBN 978-82-14-05712-6.
Report
Fredriksen, Stein; Skjoldal, HR; Husa, Vivian; Olsen, Yngvar; Christie, Hartvig C; Dale, Trine; Sjøtun, Kjersti. (2011) Vurdering av eutrofisituasjonen i kystområder, med særlig fokus på Hardangerfjorden og Boknafjorden. 2011.
Report
Olsen, Lasse Mork; Holmer, Marianne; Olsen, Yngvar. (2008) Perspectives of nutrient emission from of fish aquaculture in coastal waters. Literature review with evaluated state of knowledge. 2008.
Report
Olsen, Atle Ivar; Olsen, Yngvar. (2006) CODTECH: a process oriented approach to intensive production of marine juveniles with main emphasis on cod. Årsrapport 2005. 2006.
Report
Olsen, Atle Ivar; Olsen, Yngvar. (2005) CODTECH: a process oriented approach to intensive production of marine juveniles with main emphasis on cod. Årsrapport 2004. 2005.
Report
Olsen, Atle Ivar; Olsen, Yngvar. (2004) CODTECH: a process oriented approach to intensive production of marine juveniles with main emphasis on cod. Årsrapport 2003. 2004.
Report
Handå, Aleksander; Fredheim, Arne; Lien, Egil; McClimans, Thomas; Reitan, Kjell Inge; Tangen, Karl; Olsen, Yngvar. (2003) Bruk av luftbobling og neddykket ferskvannsutslipp som metode for produksjon av giftfrie blåskjell (Artificial upwelling to combat toxic algae - in Norwegian). 2003.
Report
Handå, Aleksander; McClimans, Thomas; Reitan, Kjell Inge; Olsen, Yngvar. (2003) Utredning over mulige strategier og tiltak for produksjon av giftfrie blåskjell i norske fjorder (Strategies to combat toxic algae, in Norwegian). 2003.
Report
Reitan, Kjell Inge; Olsen, Yngvar; Øie, G; Reinertsen, Helge. (2001) Enhanced Nutrient Supply to Norwegian Coastal Waters: Effects on Growth of Scallops and Blue Mussels. 2001. C.C.-T. et al. (eds.) Spawning and maturation of aquaculture species, US-Japan Natural Resources Technical report (28).
Report
Skjoldal, Hein Rune; Aure, Jan; Bakke, Torgeir; Dahl, Finn Erik; Fredriksen, Stein; Gray, John Stuart; Heldal, Mikal; Røed, Lars Petter; Olsen, Yngvar; Tangen, Karl; Molvær, Jarle. (1997) The Norwegian North Sea Coastal Water: Eutriphication; Status and trends. 1997.
Report
Skjoldal, Hein Rune; Bakke, Torgeir; Dahl, Finn Erik; Fredriksen, Stein; Gray, John Stuart; Heldal, Mikal; Røed, Lars Petter; Olsen, Yngvar; Tangen, Karl; Molvær, Jarle. (1995) Ytre Oslofjord: Eutrofitilstand, utvikling og forventede effekter av reduserte tilførsler av næringsalter. 1995.
Report

Teaching

Courses

Media

2022

Interview

Olsen, Yngvar. (2022) Møttes tilfeldig med idéer - nå er konferansen 10 år. MN24 [Avis]. 2022-10-28.

2021

Lecture

Forbord, Silje; Matsson, Böris Sanna Christina A; Broch, Ole Jacob; Steinhovden, Kristine; Duinker, Arne; Solvang, Torfinn; Sarno, Antonio; Handå, Aleksander; Olsen, Yngvar; Skjermo, Jorunn. (2021) Cultivation of sugar kelp (Saccharina latissima) along the Norwegian coast. Variations in growth and chemical composition in connection to latitude, season, depth and hatchery treatments. ALGET2 Webinar . Norges Vel; Online. 2021-01-28 - 2021-01-28.

2020

Academic lecture

Haugen, Randi Wenche; Carson, Siri Granum; Olsen, Yngvar. (2020) Hvordan bygge samfunnsansvar innen lakseoppdrett?. NTNU Kveld . NTNU Vitenskapsmuseet; Dokkhuset Trondheim. 2020-02-18 - 2020-02-18.
Popular scientific lecture

Olsen, Yngvar. (2020) Havbruksingeniør - nytt 3-årig bachelorstudium. Årssamling Sjømat Norge Havbruk Midt & NCE Aquatech Cluster . NCE Aquatech cluster, Sjømat Norge Havbruk Midt; Trondheim. 2020-02-17 - 2020-02-18.

2019

Academic lecture

Bakke, Ingrid; Mathisen, Amalie johanne Horn; Gomez de la Torre Canny, Sol; 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.
Academic lecture

Etter, Siv Anina; Forbord, Silje; Dahlen, Vegard Rønning; Handå, Aleksander; Olsen, Yngvar; Reitan, Kjell Inge. (2019) INTITIAL UPTAKE CAPACITY OF AMONIUM IN SACCHARINA LATISSIMA IN AN IMTA CONTEXT. Aquaculture Europe 2019 . European Aquaculture Society; Berlin. 2019-10-08 - 2019-10-11.
Lecture

Forbord, Silje; Brodahl, Guri Ellila; Matsson, Sanna; Skjermo, Jorunn; Broch, Ole Jacob; Steinhovden, Kristine; Saifullah, Saifullah; Foldal, Solveig; Kleppe, Malin; Duinker, Arne; Olsen, Yngvar; Handå, Aleksander. (2019) Latitudinal and seasonal variations of growth and chemical content of the sugar kelp Saccharina latissima along the Norwegian coast. 23rd International Seaweed Symposium . International Seaweed Association; Jeju. 2019-04-28 - 2019-05-03.
Lecture

Forbord, Silje; Matsson, Sanna; Broch, Ole Jacob; Handå, Aleksander; Skjermo, Jorunn; Steinhovden, Kristine; Solvang, Torfinn; Olsen, Yngvar. (2019) Seaweed cultivation in Norway- ecology and strategy. SIG Seaweed 5 . SINTEF Ocean; Trondheim. 2019-11-27 - 2019-11-28.
Academic lecture

Saifullah, Saifullah; Forbord, Silje; Handå, Aleksander; Olsen, Yngvar. (2019) Can shifting the depth improve the growth and carbohydrate content of the sugar kelp? A result from MACROSEA project. 23rd International Seaweed Symposium . International Seaweed Association; International Convention Center, Jeju. 2019-04-28 - 2019-05-03.
Academic lecture

Skrove, Tale; Olsen, Yngvar. (2019) Effects of nutrient emissions from an exposed fish farm on the upper water column. Aquaculture Europe 2019 . European Aquaculture Society; Berlin. 2019-10-08 - 2019-10-10.

2018

Poster

Forbord, Silje; Brodahl, Guri; Matsson, Sanna; Broch, Ole Jacob; Skjermo, Jorunn; Alver, Morten; Solvang, Torfinn; Saifullah, Saifullah; Steinhovden, Kristine; Foldal, Solveig; Olsen, Yngvar; Handå, Aleksander. (2018) A Norwegian cultivation program for sugar kelp (Saccharina latissima). Tjärnö International Seaweed Conference . Seafarm, AquaAgri Kelp and Sweaweed; Tjärnö Marine Laboratory. 2018-06-18 - 2018-06-20.
Academic lecture

Forbord, Silje; Brodahl, Guri; Matsson, Sanna; Skjermo, Jorunn; Broch, Ole Jacob; Alver, Morten; Solvang, Torfinn; Saifullah, Saifullah; Steinhovden, Kristine; Foldal, Solveig; Olsen, Yngvar; Handå, Aleksander. (2018) A NORWEGIAN CULTIVATION PROGRAM FOR THE SUGAR KELP Saccharina latissima. Aqua 2018 #We R Aquaculture . World Aquaculture Society and European Aquaculture Society; Montpellier. 2018-08-25 - 2018-08-29.
Poster

Båtnes, Anna Solvang; Bones, Atle M.; Guragain, Prashanna; Guttu, Ane Maria; Jevne, Lone Sunniva; Nytrø, Ane Vigdisdatter; Olsen, Rolf Erik; Reitan, Kjell Inge; Winge, Per; Østerhus, Stine; Olsen, Yngvar. (2018) Taskforce salmon lice – spread and infection mechanisms of sea lice within and between farmed and wild populations of salmonids. Sea Lice 2018 ; Punta Arenas. 2018-11-04 - 2018-11-08.
Academic lecture

Båtnes, Anna Solvang; Jevne, Lone Sunniva; Reitan, Kjell Inge; Olsen, Yngvar. (2018) Taskforce lakselus: mekanismer for spredning av lakselus. FHFs lusekonferanse ; Trondheim. 2018-01-22 - 2018-01-24.
Poster

Forbord, Silje; Brodahl, Guri; Matsson, Sanna; Broch, Ole Jacob; Skjermo, Jorunn; Alver, Morten; Solvang, Torfinn; Saifullah, Saifullah; Steinhovden, Kristine; Foldal, Solveig; Olsen, Yngvar; Handå, Aleksander. (2018) Nasjonalt dyrkningsprogram for sukkertare. Havbruk 2018 . Forskningsrådet; Oslo. 2018-04-18 - 2018-04-20.
Academic lecture

Hancke, Kasper; Broch, Ole Jacob; Bekkby, Trine; Olsen, Yngvar; Fieler, Reinhold; Christie, Hartvig C; Gundersen, Hege. (2018) Industriell taredyrking: Potensielle effekter på naturlige økosystemer. HAVBRUK2018 Conference . Research Council of Norway; Oslo. 2018-04-18 - 2018-04-20.
Academic lecture

Hancke, Kasper; Broch, Ole Jacob; Bekkby, Trine; Olsen, Yngvar; Fieler, Reinhold; Gundersen, Hege; Alver, Morten; Christie, Hartvig C. (2018) Kelp industrial production: Potential impacts on coastal ecosystems. World Aquaculture Society Conference - AQUA2018 . World Aquaculture Society; Montpellier. 2018-08-25 - 2018-08-29.
Lecture

Handå, Aleksander; Broch, Ole Jacob; Forbord, Silje; Skjermo, Jorunn; Alver, Morten; Solvang, Torfinn; Matsson, Sanna; Sjøtun, Kjersti; Olsen, Yngvar; Endresen, Per Christian. (2018) Taredyrking – en næring i vekst. Havbrukskonferasen . Norges forskningsråd; Oslo. 2018-04-15 - 2018-04-15.
Academic lecture

Jalili, Mahsa; Jin, Yang; Olsen, Yngvar; Bones, Atle M.; Østensen, Mari-Ann; Vadstein, Olav; buonocore, Francesco; Scapigliati, Giuseppe; Gerdol, Marco; Pallaviccini, Alberto. (2018) Dietary lipids can modify the immune-related transcriptome in Atlantic salmon: a model organism. 5th European Congress of Immunology . EFIS; Amsterdam. 2018-09-02 - 2018-09-06.
Academic lecture

Saifullah, Saifullah; Surilayani, Dini; Handå, Aleksander; Olsen, Yngvar. (2018) Carbohydrate of the Brown Seaweed, Saccharina latissima: a review. 2nd International Conference on Food Security Innovation 2018 . Universitas Sultan Ageng Tirtayasa; Aston Hotel, Anyer, Serang-Banten. 2018-10-23 - 2018-10-23.
Poster

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

2017

Academic lecture

Jalili, Mahsa; Jin, Yang; Olsen, Yngvar; Bones, Atle M.. (2017) Dietary fat can modify the mRNA levels of inflammation markers in Salmo salar. 7th International Conference on Aquaculture & Fisheries ; Rome. 2017-10-19 - 2017-10-21.
Interview

Jevne, Lone Sunniva; Båtnes, Anna Solvang; Reitan, Kjell Inge; Olsen, Yngvar; Guttu, Ane Maria. (2017) På lag mot lakselusa. Frøya Nyheter [Internett]. 2017-04-06.
Interview

Kjørsvik, Elin; Olsen, Yngvar; Bazilchuk, Nancy Reney; Midling, Anne Sliper. (2017) Japanere skal redde den truede tunfisken. forskning.no [Internett]. 2017-01-19.
Interview

Kjørsvik, Elin; Olsen, Yngvar; Bazilchuk, Nancy Reney; Midling, Anne Sliper. (2017) Oppdrett kan redde utrydningstruet tunfisk. Gemini.no [Internett]. 2017-01-19.
Academic lecture

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

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.; Vadstein, Olav; Bakke, Ingrid. (2017) Rearing water microbiota influences the microbiota and transcript profiles of cod larvae. NBS Contact Meeting 2017 . Norsk Biokjemisk Selskap; Gol. 2017-01-19 - 2017-01-22.
Poster

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

2016

Academic lecture

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

Jin, Yang; Olsen, Rolf Erik; Østensen, Mari-Ann; Gillard, Gareth Benjamin; Korsvoll, Sven Arild; Santi, Nina; Gjuvsland, Arne Bjørke; Vik, Jon Olav; Torgersen, Jacob Seilø; Sandve, Simen Rød; Olsen, Yngvar. (2016) MOLECULAR MECHANISMS UNDERLYING PHOSPHOLIPID METABOLISM IN STOMACH, PYLORIC CAECA AND HINDGUT OF ATLANTIC SALMON (SALMO SALAR) FRY DURING EARLY DEVELOPMENT FROM FIRST-FEEDING. 3rd INTERNATIONAL CONFERENCE ON INTEGRATIVE SALMONID BIOLOGY (ICISB 2016) . the International Cooperation to Sequence the Atlantic Salmo; PUERTO VARAS. 2016-04-24 - 2016-04-27.
Academic lecture

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

Vestrum, Ragnhild Inderberg; Attramadal, Kari; Winge, Per; Li, Keshuai; Olsen, Yngvar; Bones, Atle M.; Vadstein, Olav; Bakke, Ingrid. (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.

2015

Academic lecture

Forberg, Torunn; Vadstein, Olav; Winge, Per; Bones, Atle M.; Luef, Birgit; Østensen, Mari-Ann; Bakke, Ingrid; Vestrum, Ragnhild Inderberg; Olsen, Yngvar. (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 symposia; Keystone, Colorado. 2015-03-01 - 2015-03-06.
Academic lecture

Handå, Aleksander; Jansen, HM; Bergvik, Maria; Forbord, Silje; Broch, Ole Jacob; Ellis, John; Bannister, Raymond; Husa, Vivian; Fossberg, Julia Leivestad; Stensås, Lene; Førde, Henny; Skjermo, Jorunn; Reitan, Kjell Inge; Strand, Øivind; Olsen, Yngvar. (2015) EXPLOITATION OF NUTRIENTS FROM SALMON AQUACULTURE: WHAT IS THE POTENTIAL FOR IMTA IN NORWAY?. Aquaculture Europe 2015 . European Aquaculture Society; Rotterdam. 2015-10-21 - 2015-10-23.
Interview

Olsen, Yngvar. (2015) - Frøya skal bli kaia til NTNU. Frøya.no [Internett]. 2015-10-14.
Interview

Olsen, Yngvar. (2015) Vi vil inspirere flere. Fiskeribladet Fiskaren [Avis]. 2015-05-04.
Academic lecture

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.

2014

Academic lecture

Bergvik, Maria; Stensås, Lene; Forbord, Silje; Jansen, Henrice M; Reitan, Kjell Inge; Strand, Øivind; Olsen, Yngvar; Handå, Aleksander. (2014) Assimilation of nutrients from salmon aquaculture in great scallop (Pecten maximus) and blue mussels (Mytilus edulis). Aquaculture Europe 14, International Conference and Exposition . European Aquaculture Society; San Sebastion. 2014-10-14 - 2014-10-17.
Lecture

Forbord, Silje; Fossberg, Julia; Førde, Henny; Bergvik, Maria; Fleddum, Annelise; Skjermo, Jorunn; Arff, Johanne; Reitan, Kjell Inge; Olsen, Yngvar; Handå, Aleksander. (2014) Integrert multi-trofisk akvakultur - Sesongvariasjoner i vekst og begroing hos dyrket sukkertare i nærhet av lakseanlegg. Programkonferansen HAVBRUK 2014 . Forskningsrådet; Tromsø. 2014-03-31 - 2014-04-02.
Lecture

Forbord, Silje; Handå, Aleksander; Wang, Xinxin; Broch, Ole Jacob; Fossberg, Julia; Førde, Henny; Reitan, Kjell Inge; Olsen, Yngvar; Skjermo, Jorunn. (2014) Taredyrking i IMTA. SATS Marint! . Norsk Sjømat Senter; Bergen. 2014-02-12 - 2014-02-13.
Poster

Jin, Yang; Li, Keshuai; Olsen, Yngvar. (2014) TIME KINETICS OF FATTY ACID CHANGES IN PHOSPHOLIPIDS FOLLOWING ENRICHMENT AND STARVATION OF ARTEMIA FRANCISCANA WITH A MAIN FOCUS ON DOCOSAHEXAENOIC ACID (DHA). Aquaculture Europe 2014 ; 2014-10-14 - 2014-10-17.
Lecture

Li, Keshuai; Olsen, Yngvar. (2014) Efficiency of DHA enrichment in phospholipids of rotifers and stability post-enrichment. Aquaculture Europe 2014 ; Donostia-San Sebastian. 2014-10-14 - 2014-10-17.
Poster

Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bakke, Ingrid; Bones, Atle M.; Vadstein, Olav; Kjørsvik, Elin; Olsen, Yngvar. (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.
Poster

Olsen, Lasse Mork; Hernandez, Klaudia; Ardelan, Murat Van; Iriarte, Jose Luis; Sanchez, Nicolas; Gonzalez, Humberto E.; Tokle, Nils Egil; Dorador, Cristina; Olsen, Yngvar. (2014) Effect of ammonium addition on the microbial food web structure and community composition of the osmotrophs in the Comau fjord in southern Chile. ASLO Ocean Sciences Meeting . American Society for Limnology and Oceanography; Honolulu. 2014-02-23 - 2014-02-28.
Lecture

Olsen, Yngvar. (2014) An overview of the aquaculture activity in Norway. Norwegian Marine Seminar, Aquaculture . Innovation Norway, Norwegian Seafood Council, Nor. Embassy; Qingdao. 2014-11-04 - 2014-11-04.
Lecture

Olsen, Yngvar. (2014) Et teknologisprang for lakseoppdrett – et bidrag til global matforsyning - Innledningsforedrag. Brohodekonferansen 2014 . NTNU-STFK Brohode Frøya; Frøya kultur- og kompetansesenter, Sistranda. 2014-10-22 - 2014-10-23.
Lecture

Olsen, Yngvar. (2014) Havet; vårt sikre matfat? Hvordan vil klimaendringene påvirke havet og ressursene i havet?. Dybdeseminar - På innsiden av FNs klimapanels rapporter . Miljødirektoreatet; Ingeniørenes hus, Oslo. 2014-05-21 - 2015-05-21.
Academic lecture

Olsen, Yngvar. (2014) Resources for fish feed in future mariculture. 5th Offshore Mariculture Conference . World Fishing & Aquaculture; Naples, Italy. 2014-04-09 - 2014-04-11.
Lecture

Olsen, Yngvar. (2014) Salmon farming in Norway - state of the art technology and future perspectives. Research Seminar on Aquaculture Research . Research Council of Norway and the Norwegian Embassy; Qingdao. 2014-11-04 - 2014-11-04.
Popular scientific lecture

Olsen, Yngvar. (2014) Tverrfaglighet i forskning og utdanning. Visjon om ”Kunnskap for bærekraftig bruk av havrommet”. Rørvik 2014 - Veldigviktigkonferansen – vårslepp . NTNU-STFK Brohode Frøya; Hurtigruta Polarlys. 2014-02-04 - 2014-02-06.
Popular scientific lecture

Olsen, Yngvar. (2014) Utslipp og forvaltning av næringssalter. Presentasjon for formannskapet i Kjøllefjord kommune . Kjøllefjord kommune; Kjøllefjord, Finnmark. 2014-10-27 - 2014-10-27.

2013

Academic lecture

Attramadal, Kari; Øie, Gunvor; Kjørsvik, Elin; Minniti, Giusi; Olsen, Yngvar; Skjermo, Jorunn; Bakke, Ingrid; Østensen, Mari-Ann; Vadstein, Olav. (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.
Academic lecture

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

Bloecher, Nina; Guenther, Jana; Bannister, Raymond; Olsen, Yngvar; Piola, Richard. (2013) Biofouling hydroids in Norwegian salmon aquaculture: do they benefit from farm nutrients and can they significantly affect the oxygen levels in a cage?. Aquaculture Europe . European Aquaculture Society; Trondheim. 2013-09-19 - 2013-09-21.
Lecture

Forbord, Silje; Handå, Aleksander; Wang, Xinxin; Broch, Ole Jacob; Dahle, Stine Veronica Wiborg; Størseth, Trond Røvik; Reitan, Kjell Inge; Olsen, Yngvar; Skjermo, Jorunn. (2013) Seasonal and depth-dependent growth of cultivated kelp (Saccharina latissima) in close proximity to salmon (Salmo salar) aquaculture in Norway. XXI International Seaweed Symposium . International Seaweed Association; Bali. 2013-04-21 - 2013-04-26.
Lecture

Forbord, Silje; Handå, Aleksander; Wang, Xinxin; Broch, Ole Jacob; Dahle, Stine Veronica Wiborg; Størseth, Trond Røvik; Reitan, Kjell Inge; Olsen, Yngvar; Skjermo, Jorunn. (2013) Seasonal and depth-dependent growth of cultivated kelp (Saccharina latissima) in close proximity to salmon (Salmo salar) aquaculture in Norway. Aquaculture Europe 13 . European Aquaculture Society; Trondheim. 2013-08-09 - 2013-08-13.
Interview

Langeland, Pernille Feilberg; Olsen, Yngvar. (2013) Havbunnen endrer klimaregnestykket. Gemini [Tidsskrift]. 2013-12-27.
Poster

Li, Keshuai; Østensen, Mari-Ann; Attramadal, Kari; Winge, Per; Sparstad, Torfinn; Bakke, Ingrid; Bones, Atle M.; Vadstein, Olav; Kjørsvik, Elin; Olsen, Yngvar. (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 University; Ghent. 2013-09-02 - 2013-09-05.
Interview

Nancy, Bazilchuk; Olsen, Yngvar. (2013) Factoring marine sediments into climate calculations. ScienceNordic [Internett]. 2013-12-13.
Interview

Olsen, Yngvar. (2013) Norges muligheter i havbruk. TV2 interjuv i Akademies hus, Oslo [TV]. 2013-01-30.
Popular scientific lecture

Olsen, Yngvar. (2013) Økologiske prinsipper og muligheter for matproduksjon til havs. Mat fra havet – Norges muligheter . DNVA, NTVA og NFR; Akademiets hus, Oslo. 2013-01-30 - 2013-11-30.
Interview

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

Vadstein, Olav; Olsen, Yngvar; Attramadal, Kari; Bakke, Ingrid; Forberg, Torunn; Skjermo, Jorunn; Aasen, Inga Marie; Gatesoupe, F.J.; Dierckens, K.; De Schryver, P.; Yaacob, E.N.; Giatsis, C.; Verdegem, M.; Defoirdt, T.; Sorgeloos, P.; Bossier, P.. (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.

2012

Academic lecture

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.
Lecture

Handå, Aleksander; Forbord, Silje; Broch, Ole Jacob; Reitan, Kjell Inge; Skjermo, Jorunn; Olsen, Yngvar. (2012) IMTA in Norway with Atlantic salmon, Sugar kelp and Blue mussels: A one-year case study. NTNU, Yellow Sea Fisheries Research Institute and CASF Aquaculture seminar . YSFRI and CASF; Qingdao. 2012-09-15 - 2012-09-15.
Poster

Li, Keshuai; Kjørsvik, Elin; Bergvik, Maria; Olsen, Yngvar. (2012) Manipulation of the docosahexaenoic acid (DHA) content of phosphatidylcholine (PC) and phosphatidylethanolamine (PE) in rotifers Brachionus sp. Nevada and Cayman. XV International Symposium on Fish Nutrition and Feeding ; Molde. 2012-06-04 - 2012-06-07.
Interview

Olsen, Yngvar; Skjermo, Jorunn; Aasen, Inga-Marie; Østgaard, Kjetill. (2012) Fra tanke til tank. Adresseavisen - Bil & trafikk [Avis]. 2012-03-20.

2011

Academic lecture

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.

2010

Academic lecture

Alver, Morten; Broch, Ole Jacob; Ellingsen, Ingrid H. Ellingsen; Handå, Aleksander; Olsen, Yngvar; Slagstad, Dag; Reitan, Kjell Inge. (2010) Modelling IMTA: bioremediation potential and trophic pathways of excess nutrient loads. Aquaculture Europe 2010 . European Aquaculture Society; Porto. 2010-10-05 - 2010-10-08.
Academic lecture

Attramadal, Kari; Salvesen, Ingrid; Øie, Gunvor; Xue, Renyu; Størseth, Trond; Vadstein, Olav; Olsen, Yngvar. (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.
Academic lecture

Attramadal, Kari; Thuy, Minh Vu Thi; Buran, Astrid; Wold, Per-Arvid; Øie, Gunvor; Vadstein, Olav; Leiknes, TorOve; Olsen, Yngvar. (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.
Academic lecture

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

Bossier, P.; Vadstein, Olav; Olsen, Yngvar; Boon, N.; Bergh, Ø.; Gatesoupe, F.J.; Picchietti, S.; Abelli, L.; Buonocore, E.; Fausto, A.M.; Scapigliati, G.; Galindo-Villegas, J.; Mulero, V.; Makridis, P.; Sorgeloos, P.; Defoirdt, T.; Dierckens, K.. (2010) Microbiology and immunology of larviculture. Aquaculture Europe 2010 ; Porto. 2010-10-05 - 2010-10-08.
Academic lecture

Øie, Gunvor; Alver, Morten; Storøy, Werner; Bardal, Tora; Overrein, Ingrid; Alfredsen, Jo Arve; Olsen, Yngvar. (2010) Automation in Marine Larviculture With Use of Copepods (Acartia tonsa) as Live Food. Aquaculture Europe 2010 . European Aquaculture Society; Porto. 2010-10-05 - 2010-10-08.

2009

Academic lecture

Alver, Morten; Øie, Gunvor; Olsen, Yngvar; Alfredsen, Jo Arve. (2009) Process monitoring and control in the next generation hatchery. Larvi 2009 5th fish & shellfish larviculture symposium . Ghent University; Gent. 2009-09-07 - 2009-09-10.
Academic lecture

Bossier, P.; Dierckens, K.; Van Delsen, B.; Defoirdt, T.; De Schryver, P.; Vadstein, Olav; Aasen, Inga-Marie; Gatesoupe, F.J.; Verreth, J.; Smidt, H.; Skjermo, Jorunn; Verdegem, M.J.C.; Boon, N.; Olsen, Yngvar; Van Breusegem, F.; Sorgeloos, P.. (2009) The role of microbiota in aquaculture target organisms and their environment. Aquaculture Europe 2009 ; Trondheim. 2009-08-14 - 2009-08-17.
Popular scientific lecture

Olsen, Yngvar. (2009) Oppdrett og eutrofi-problematikk. Akvakultur – muligheter og trusler i vann . Norsk Vannforening; Pirsenteret, Havnegt. 9, Trondheim. 2009-05-13 - 2009-05-13.
Academic lecture

Olsen, Yngvar. (2009) Waste production and environmental impacts of salmon aquaculture. Third International Workshop on Carrying Capacity of Aquaculture: Integrated Multitrophic Aquaculture as a strategy for management of high productive aquaculture areas . AVS; Puerto Montt. 2009-06-20 - 2009-09-21.
Academic lecture

Olsen, Yngvar; Larssen, Harald; Overrein, Ingrid; Evjemo, Jan Ove; Rainuzzo, Jose R.. (2009) Fatty acid composition of phospholipids in prey organisms and their incorporation efficiency in cod larvae during early first feeding. World Aquaculture 2009 . World Aquaculture Society; Veracruz. 2009-09-25 - 2009-09-29.
Academic lecture

Øie, Gunvor; Alver, Morten; Alfredsen, Jo Arve; Kjørsvik, Elin; Attramadal, Kari; Olsen, Yngvar. (2009) Status and challenges in cod larval production. Larvi 2009 – 5th fish & shellfish larviculture symposium . Ghent University; Ghent. 2009-09-07 - 2009-09-10.

2008

Academic lecture

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” . NOFIMA; Sunndalsøra. 2008-02-27 - 2008-02-28.
Academic lecture

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

Olsen, Yngvar. (2008) Environmental interaction of coastal aquaculture – A European perspective. International Workshop on Healthy Aquaculture 2008 . Ocean University of China; Qingdao. 2008-05-25 - 2008-05-27.
Popular scientific lecture

Olsen, Yngvar. (2008) Eutrofiering av kystfarvann – Eksperimentell eutrofiering av Hopavågen. Seminar om næringssalters betydning for kystmiljøet . Statens Forurensningstilsyn; SFTs lokaler på Helsfyr i Oslo, Strømsveien 96. 2008-10-09 - 2008-10-10.
Academic lecture

Olsen, Yngvar. (2008) Waste production and environmental impacts of salmon aquaculture. China-Norway Workshop on IMTA and Aquaculture Technology . Yellow Sea Fisheries Research Institute; Qingdao. 2008-05-29 - 2008-06-01.
Academic lecture

Olsen, Yngvar; Olsen, Lasse Mork. (2008) Environmental impact of aquaculture on coastal planktonic ecosystems. 5th World Fisheries Congress . Japanese Society of Fisheries; Yokohama. 2008-10-20 - 2008-10-24.

2007

Academic lecture

Ellingsen, Harald; Endal, Anders; Olsen, Yngvar. (2007) Education for sustainable utilization of marine resources: A new international master programme at the Norwegian University of Science and Technology (NTNU) in Trondheim. Ecosummit 2007: Ecological Complexity and Sustainability . Ecological Society of China & Elsevier; Beijing. 2007-05-22 - 2007-05-27.
Academic lecture

Olsen, Yngvar. (2007) Cage culture and waste management – Impacts on the pelagic ecosystem. Aquaculture Twin Event . COST-EUREKA; Patras. 2007-06-10 - 2007-06-12.
Academic lecture

Olsen, Yngvar. (2007) Environmental interaction of aquaculture and coastal ecosystems. Aquaculture Europe 2007 . European Aquaculture Society; Istanbul. 2007-10-24 - 2007-10-27.
Academic lecture

Olsen, Yngvar. (2007) Nutrient impacts of farmed Atlantic salmon (Salmo salar) on pelagic ecosystems and implications for carrying capacity. Nutrients Working Group Salmon Aquaculture Dialogue, World Wildlife Fund (WWF). WAS Conference . World Aquaculture Society; San Antonio, February 26 - March 2. 2007.. 2007-02-26 - 2007-03-02.
Academic lecture

Olsen, Yngvar. (2007) Status and Perspectives of Marine Aquaculture – A Foresight. Aquaculture Twin Event . COST-EUREKA; Patras. 2007-06-10 - 2007-07-12.
Academic lecture

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 . European Aquaculture Society; Istanbul. 2007-10-25 - 2007-10-28.
Academic lecture

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 . European Aquaculture Society; Istanbul. 2007-10-25 - 2007-10-27.

2006

Academic lecture

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.
Academic lecture

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.
Poster

Høy, Erik; Alfredsen, Jo Arve; Alver, Morten; Øie, Gunvor; Olsen, Yngvar. (2006) Computer controlled appetite feeding of marine larvae. Aqua 2006 . World Aquaculture Society; Firenze. 2006-05-09 - 2006-05-12.
Poster

Langvatn, Vegard Aambø; Olsen, Atle Ivar; Olsen, Yngvar. (2006) Size selection of live feed by larvae of Atlantic Cod Gadus Morhua. Aqua 2006 ; Firenze, Italia. 2006-05-09 - 2006-05-13.
Academic lecture

Olsen, Yngvar. (2006) Environmental Interactions between Cage Culture and the Surrounding Water Masses. Zhoushan International Marine High & New Technology Forum . Zhejiang Ocean University; Zhoushan. 2006-06-28 - 2006-07-01.
Academic lecture

Olsen, Yngvar. (2006) Environmental Interactions between Cage Culture and the Surrounding Water Masses. 2nd International Symposium on Cage Aquaculture in Asia (CAA2) . Asian Fisheries Society; Hanghzou. 2006-07-03 - 2006-07-08.
Academic lecture

Olsen, Yngvar. (2006) Nutrient loading from cage fish farming and its impact on pelagic ecosystems. WAS-EAS AQUA 2006 . World Aquaculture Society - European Aquaculture Socoety; Florence. 2006-05-09.
Academic lecture

Olsen, Yngvar; Otterstad, Oddmund; Duarte, Carlos. (2006) Status and future perspectives of marine aquaculture. Sami workshop . Sami project; Menorca. 2006-01-30 - 2006-02-01.
Academic lecture

Olsen, Yngvar; Reitan, Kjell Inge; Slagstad, Dag. (2006) Farming sea cages as driver for the integrated aquaculture. VII Jornadas de Salmonicultura . Salmon Chile; Puerto Varas. 2006-10-25 - 2006-10-27.
Academic lecture

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

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.

2005

Academic lecture

Alver, Morten; Alfredsen, Jo Arve; Olsen, Yngvar. (2005) An individual based model for estimating nutritional value of rotifers (Brachionus plicatilis) as start feed for fish larvae. Aquaculture Europe 2005 . European Aquaculture Society; Trondheim. 2005-08-09 - 2005-08-12.
Academic lecture

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.
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.
Academic lecture

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.
Academic lecture

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.

2004

Academic lecture

Olsen, Yngvar. (2004) How does European coastal plankton respond to enhanced nutrient input? A comparative study of food web structure and function in contrasting coastal waters. Canadian Centre for Inland Waters ; Ontario. 2004-09-20 - 2004-09-20.
Academic lecture

Olsen, Yngvar. (2004) Is essential fatty acid deficiency likely to occur in natural aquatic food webs, and if so, what are the potential consequences for fish stocks?. Lake Whitefish Natural Mortality Workshop ; Ann Arbor. 2004-09-21 - 2004-09-22.
Academic lecture

Olsen, Yngvar. (2004) Is marine zooplankton likely to experience essential fatty acid (EFA) deficiency?. IMEDEA-CSIC ; Mallorca. 2004-06-03 - 2004-06-03.
Academic lecture

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

2003

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 . [Mangler data]; Fijón, Spain. 2003-05-23.
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 . PISCES; Gijon. 2003-05-20 - 2003-05-23.
Academic lecture

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 . [Mangler data]; Gijón, Spania. 2003-05-23.

2000

Poster

Kjeldstad, Berit; Olsen, Yngvar; Børsheim, Yngve; Stokke, Kristian; Storsveen, Gry; Sakshaug, Egil. (2000) Seasonal UV penetration variability in a Norwegian fjord system; sources and interpretations. Ocean optics, XI . [Mangler data]; Monaco, 20-24 October.
Academic lecture

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

1999

Academic lecture

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 . [Mangler data]; Trondheim, 7-10 august 1999.
Academic lecture

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 . [Mangler data]; Hawaii, November 7-16, 1999.
Poster

Vadstein, Olav; Olsen, Yngvar; Reinertsen, Helge; Hoell, Espen; Gismervik, Ingrid; Sommer, Ulrich; Andersen, Tom. (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 . [Mangler data]; Noordwijkerhout, The Netherlands, 1-4 desember 1999.

1998

Academic lecture

Olsen, Yngvar. (1998) Status of the cultivation technology for production of Atlantic halibut (Hippoglossus hippoglossus) juveniles in Norway/Europe. World Aquaculture, . [Mangler data]; Las Vegas..
Academic lecture

Sandvik, Roar; Olsen, Yngvar. (1998) Competition experiments under varying elemental ratios of the media, modes of nutrient supply and growth irradiance. 1998 Ocean Science Meeting . [Mangler data]; San Diego, USA.
Academic lecture

Sandvik, Roar; Olsen, Yngvar. (1998) Evaluation of the competitive ability of Skeletonema costatum (Bacillariophyceae) and Emiliania huxleyi (Prymnesiophyceae) under variable N/P supply. The Land-Water Interface: Science of a Sustainable Biosphere . [Mangler data]; St. Louis, USA, 8.-12. June.
Academic lecture

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 . [Mangler data]; St Lois, U.S.A., 8.-12. June 1998..

1997

Academic lecture

Kai, Kivi.; Heiskanen, Anna-Stiina.; Kuuppo, Pirjo.; Seppala, Jukka.; Tamminen, Timo.; Tuomi, Pirjo.; Andersen, Tom.; Olsen, Yngvar. (1997) Responses of the baltic planktonic food web to different nutrient loads. First Annual Scientific ELOISE Conference, . [Mangler data]; France..
Academic lecture

Olsen, Atle; Reitan, Kjell Inge; Attramadal, Yngve; Olsen, Yngvar. (1997) Size selection of artemia by first feeding halibut larvae. Aquaculture '97 . [Mangler data]; Trondheim.
Academic lecture

Olsen, Yngvar. (1997) Opportunities of increasing biological production. Ocean Harvest. . [Mangler data]; Southampton Oceanography Center..
Academic lecture

Rainuzzo, J.; Reitan, K. I.; Olsen, Yngvar. (1997) Pigmentation of turbot Scophthalmus maximus L. Int. Conf. Aquaculture. . [Mangler data]; Trondheim..
Academic lecture

Rainuzzo, Jose R.; Reitan, Kjell Inge; Olsen, Yngvar. (1997) Pigmentation of turbot (Scophthalmus maximus L.). Aquaculture '97 . [Mangler data]; Trondheim.
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 . [Mangler data]; Arcachon, France, 21-23 may 1997.

1996

Academic lecture

Olsen, Yngvar. (1996) Cultivation techniques used for Atlantic halibut, turbot and cod in Norway. In: Improvement of the Commercial Production of marine Aquaculture Species. Proceedings of a Workshop on Fish and Mollusc Larviculture. . [Mangler data]; Santiago, Chile.
Academic lecture

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". . [Mangler data]; Bankok, Thailand..
Academic lecture

Øie, Gunvor; Reitan, Kjell Inge; Olsen, Yngvar. (1996) Protein content of rotifer (Brachionus plicatilis) for use in first feeding of turbot (Scophthalmus maximus L.) larvae. International Symposium on Live Food Organisms & Environmental Control for Larviculture of Marine Animals . [Mangler data]; Nagasaki.

1992

Poster

Devresse, B.; Léger, Ph.; Sorgeloos, P.; Murata, O.; Nasu, T.; Ikeda, S.; Rainuzzo, J. R.; Reitan, K. I.; Kjørsvik, Elin; Olsen, Yngvar. (1992) Improvement of flatfish pigmentation through the use of DHA enriched rotifers and Artemia. Fifth International Symposium on Fish Nutrition and Feeding. . [Mangler data]; Santiago, Chile, 7-10 September 1992..

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Yngvar Olsen

Yngvar Olsen

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