Blogg post/article:

https://blogg.forskning.no/arktis-arven-etter-nansen-havforskning/a-jobbe-med-det-usynlige---eller-hvorfor-fotografen-ikke-tar-bilder-av-arbeidet-vart/1370083

https://www.studvest.no/forskning-pa-verdens-ende/

Teaching in the following subjects:

• Marine Microbial Ecology (BIO217)
• General Microbiology (BIO101)
• Selected Topics in Microbiology (BIO315)

Academic lecture

• Fransson, Agneta; Bluhm, Bodil Annikki Ulla Barbro; Kohlbach, Doreen et al. (2024). Nansen vs. Amundsen Basin: Constrasting physico-chemical properties and biota composition to inform management. (external link)
• Müller, Oliver; Gardner, Jessie; Olsen, Lasse et al. (2024). Arctic Sea ice ridges: Complex havens of biodiversity with astonishing community changes from ridge formation to melting and summer consolidation. (external link)
• Salganik, Evgenii; Müller, Oliver; Olsen, Lasse Mork et al. (2023). Hidden in Plain Sight – New Insights on Arctic Sea-Ice Ridges from the MOSAiC Expedition – an Overview. (external link)
• Müller, Oliver (2023). The unexpected roles of sea-ice ridges for Arctic ecosystems in winter and summer​. (external link)
• Gradinger, Rolf Rudolf; Amargant I Arumi, Marti; Assmy, Philipp Kurt Wolf et al. (2023). Ranges of Annual Production in the Barents Sea along Environmental Gradients. (external link)
• Bodur, Yasemin Vicdan; Digernes, Maria Guadalupe; Amargant I Arumi, Marti et al. (2023). Increased DOM lability and depletion of the POM inventory during winter in an Arctic fjord (Ramfjord, Tromsø). (external link)
• Steinrücken, Pia; Müller, Oliver; Böpple, Hanna et al. (2023). Insect frass as a fertilizer for cultivation of protein-rich Chlorella vulgaris . (external link)
• Gawinski, Christine; Daase, Malin Hildegard Elisabeth; Primicerio, Raul et al. (2023). Are small copepods the winners of an ice free Barents Sea? . (external link)
• Müller, Oliver; Bratbak, Gunnar; Paulsen, Maria Lund (2023). Increased organic matter input. Testing bacterial responses in Arctic fjords vs Barents Sea. (external link)
• Müller, Oliver (2023). Microbial Communities in the Future Central Arctic Ocean – What Can We Learn From Present Observations and What’s Next? . (external link)
• Müller, Oliver; Gardner, Jessie; Lange, Benjamin et al. (2022). ARCTIC SEA ICE RIDGES – DYNAMIC HOTSPOTS FOR MICROBIAL LIFE. (external link)
• Lange, Benjamin; Salganik, Evgenii; Macraflane, Amy et al. (2022). Snowmelt contributes to first-year ice ridge consolidation during summer melt. (external link)
• Lange, Benjamin; Osanen, Janina Emilia; Campbell, Karley et al. (2022). Biophysical characterization of summer Arctic sea ice habitats using a ROV- (and under-ice arm)-mounted Underwater Hyperspectral Imager. (external link)
• Steinrücken, Pia; Müller, Oliver; Jackson, Steve et al. (2022). A closer look into the microbiome of microalgal cultures. (external link)
• Steinrücken, Pia; Müller, Oliver; Jackson, Steven et al. (2021). A closer look into the microbiome of microalgal cultures . (external link)
• Müller, Oliver (2019). A microbial glimpse into two large Arctic projects: Nansen Legacy and MOSAiC. (external link)
• Müller, Oliver; White, Richard Allen; Jansson, Janet K. et al. (2017). Metagenomic insights into changing Arctic permafrost communities. (external link)
• Paulsen, Maria Lund; Doré, Hugo; Garczarek, Laurence et al. (2017). Synechococcus in the Arctic Ocean. (external link)

Popular scientific article

• Granskog, Mats; Müller, Oliver (2024). A peek beneath the surface of Arctic sea ice. (external link)
• Müller, Oliver (2021). Small pieces and large pictures in Arctic marine science. (external link)
• Müller, Oliver; Olsen, Lasse Mork (2019). Å jobbe med det usynlige - eller hvorfor fotografen ikke tar bilder av arbeidet vårt. (external link)

Academic article

• Kohler, Stephen Gustav; Heimbürger-Boavida, Lars-Eric; Assmy, Philipp Kurt Wolf et al. (2024). Biotic transformation of methylmercury at the onset of the Arctic spring bloom. (external link)
• Gawinski, Christine; Daase, Malin Hildegard Elisabeth; Primicerio, Raul et al. (2024). Response of the copepod community to interannual differences in sea-ice cover and water masses in the northern Barents Sea. (external link)
• Beck, Ivo; Moallemi, Alireza; Heutte, Benjamin et al. (2024). Characteristics and sources of fluorescent aerosols in the central Arctic Ocean. (external link)
• Fong, Allison A.; Hoppe, Clara J. M.; Aberle, Nicole et al. (2024). Overview of the MOSAiC expedition: Ecosystem. (external link)
• Steinrücken, Pia; Müller, Oliver; Böpple, Hanna et al. (2023). Insect frass as a fertilizer for the cultivation of protein-rich Chlorella vulgaris. (external link)
• Steinrücken, Pia; Jackson, Steve Sofsrud; Müller, Oliver et al. (2023). A closer look into the microbiome of microalgal cultures. (external link)
• Kohlbach, Doreen; Goraguer, Lucie; Bodur, Yasemin V. et al. (2023). Tidligere havissmelting forlenger den oligotrofe sommerperioden i Barentshavet med lav algebiomasse og vertikal fluks. (external link)
• Salganik, Evgenii; Katlein, Christian; Lange, Benjamin et al. (2023). Temporal evolution of under-ice meltwater layers and false bottoms and their impact on summer Arctic sea ice mass balance. (external link)
• Lange, Benjamin Allen; Salganik, Evgenii; Macfarlane, Amy et al. (2023). Frysing av smeltevann i skrugarder på sommertid i Polhavet. (external link)
• Thiele, Stefan; Vader, Anna; Thomson, Stuart et al. (2023). The summer bacterial and archaeal community composition of the northern Barents Sea. (external link)
• Von Friesen, Lisa W; Paulsen, Maria Lund; Müller, Oliver et al. (2023). Glacial meltwater and seasonality influence community composition of diazotrophs in Arctic coastal and open waters. (external link)
• Thiele, Stefan; Vader, Anna; Thomson, Stuart et al. (2023). Seasonality of the bacterial and archaeal community composition of the Northern Barents Sea. (external link)
• Amargant I Arumi, Marti; Müller, Oliver; Bodur, Yasemin Vicdan et al. (2023). Mellomårlige forskjeller i havisregime i det nordvestlige Barentshavet forårsaker store endringer i den pelagiske produksjonen og eksportmekanismene om sommeren. (external link)
• Mock, Thomas; Boulton, William; Balmonte, John-Paul et al. (2022). Multiomics in the central Arctic Ocean for benchmarking biodiversity change. (external link)
• Müller, Oliver; Seuthe, Lena; Pree, Bernadette et al. (2021). How microbial food web interactions shape the arctic ocean bacterial community revealed by size fractionation experiments. (external link)
• Cameron, Karen; Müller, Oliver; Stibal, Marek et al. (2020). Glacial microbiota are hydrologically connected and temporally variable. (external link)
• Müller, Oliver; Seuthe, Lena; Bratbak, Gunnar et al. (2018). Bacterial response to permafrost derived organic matter input in an Arctic fjord. (external link)
• Paulsen, Maria Lund; Müller, Oliver; Larsen, Aud et al. (2018). Biological transformation of Arctic dissolved organic matter in a NE Greenland fjord. (external link)
• Müller, Oliver; Bang‐Andreasen, Toke; White III, Richard Allen et al. (2018). Disentangling the complexity of permafrost soil by using high resolution profiling of microbial community composition, key functions and respiration rates. (external link)
• Müller, Oliver; Wilson, Bryan; Paulsen, Maria Lund et al. (2018). Spatiotemporal dynamics of ammonia-oxidizing Thaumarchaeota in Distinct Arctic water masses. (external link)
• Wilson, Bryan; Müller, Oliver; Nordmann, Eva-Lena et al. (2017). Changes in marine prokaryote composition with season and depth over an Arctic polar year. (external link)
• Paulsen, Maria Lund; Nielsen, Sophia Elisabeth Bardram; Müller, Oliver et al. (2017). Carbon bioavailability in a high Arctic fjord influenced by glacial meltwater, NE Greenland.. (external link)
• Paulsen, Maria Lund; Doré, Hugo; Garczarek, Laurence et al. (2016). Synechococcus in the Atlantic Gateway to the Arctic Ocean. (external link)

Poster

• Gardner, Jessie; Reigstad, Marit; Gradinger, Rolf Rudolf et al. (2023). Are particle fluxes below pressure ridges greater than below first-year ice in the central Arctic Ocean winter and summer?. (external link)
• Gawinski, Christine; Daase, Malin Hildegard Elisabeth; Primicerio, Raul et al. (2023). Are small copepods the winners of an ice free Barents Sea?. (external link)
• Amargant I Arumi, Marti; Müller, Oliver; Bodur, Yasemin Vicdan et al. (2023). Lower trophic level carbon fluxes in two summers of contrasting ice conditions. (external link)
• Mork Olsen, Lasse; Müller, Oliver; Thingstad, T. Frede et al. (2022). How carbon flow is controlled by microbial predator-prey interactions along a productivity gradient in the Barents Sea. (external link)
• Olsen, Lasse Mork; Müller, Oliver; Bratbak, Gunnar et al. (2022). The working of the microbial food web inside sea ice ridges vs. the water column in winter and summer in the Arctic Ocean. (external link)
• Lange, Benjamin; Salganik, Evgenii; Campbell, Karley et al. (2022). Improving bio-physical characterization of Arctic sea ice habitats using an Underwater Hyperspectral Imager. . (external link)
• von Friesen, Lisa W.; Paulsen, Maria Lund; Müller, Oliver et al. (2022). Dynamics of diazotrophic community composition in the Arctic Ocean. (external link)
• Lima, Rachel; Isaksen, Trond Einar; Skaar, Katrine Sandnes et al. (2020). In vitro optimization of a quantitative molecular assay for detection of extracellular DNA (eDNA) from Atlantic salmon (Salmo salar L. ). (external link)
• Müller, Oliver; Paulsen, Maria Lund; Seuthe, Lena et al. (2019). Biological drivers of bacterial communities in the Arctic water inflow region . (external link)
• Müller, Oliver; Øvreås, Lise; Bratbak, Gunnar et al. (2017). How permafrost organic matter input in an Arctic fjord alters the bacterial community structure. (external link)
• Wilson, Bryan; Müller, Oliver; Nordmann, Eva-Lena et al. (2016). A year in the microbial life of a changing Arctic Ocean. (external link)
• Müller, Oliver; Øvreås, Lise; Wilson, Bryan et al. (2015). Changes in structure, activity and metabolic processes of microorganisms in thawing permafrost soils from Svalbard. (external link)

Academic literature review

• Smith, Madison M.; Angot, Hélène; Chamberlain, Emelia J. et al. (2023). Thin and transient meltwater layers and false bottoms in the Arctic sea ice pack - Recent insights on these historically overlooked features. (external link)

Report

• Jones, Elizabeth Marie; Reigstad, Marit; Espinel, Nadjejda et al. (2022). JC2-1 Joint cruise part 1 2021 : Cruise Report. (external link)
• Reigstad, Marit; Gabrielsen, Tove M.; Amargant-Arumi, Marti et al. (2022). Seasonal Cruise Q3: Cruise Report . (external link)
• Gerland, Sebastian; Wold, Anette; Al-Habahbeh, Amalia Keck et al. (2022). Seasonal Cruise Q1 2021: Cruise Report . (external link)

Website (informational material)

• Müller, Oliver; Nyvoll, Jørn Berger (2020). A single litre of seawater contains billions of bacteria . (external link)

Doctoral dissertation

• Müller, Oliver; Øvreås, Lise (2018). Implications of a changing Arctic on microbial communities. Following the effects of thawing permafrost from land to sea. (external link)

Reader opinion piece

• Müller, Oliver (2018). Forskning på verdens ende. (external link)

Lecture

• Wilson, Bryan; Müller, Oliver; Nordmann, Eva-Lena et al. (2017). A year in the microbial life of a changing Arctic Ocean. (external link)
• Müller, Oliver; Øvreås, Lise; Elberling, Bo et al. (2016). From freeze to thaw; implications of changing Arctic soil communities. . (external link)
• Müller, Oliver; Øvreås, Lise (2015). Community structure, activity and metabolic processes of microorganisms in permafrost soils from Svalbard . (external link)

See a complete overview of publications in Cristin.

Articles in peer-reviewed journals:

• Müller O, Wilson B, Paulsen ML, Rumińska A, Armo HR, Bratbak G, Øvreås L (2018). Spatiotemporal dynamics of ammonia-oxidizing Thaumarchaeota in distinct Arctic water masses. Front. Microbiol. 9:24. doi: 10.3389/fmicb.2018.00024
•  Müller O, Bang-Andreasen T, White III RA, Elberling B, Taş N, Kneafsey T, Jansson JK, Øvreås L (2018). Disentangling the complexity of permafrost soil by using high resolution profiling of microbial community composition, key functions and respiration rates. Environ. Microbiol. doi:10.1111/1462-2920.14348.
• Müller O, Seuthe L, Bratbak G, Paulsen ML (2018) Bacterial response to permafrost derived organic matter input in an Arctic fjord. Front. Mar. Sci. 5. doi:10.3389/fmars.2018.00263.
• Paulsen ML, Müller O, Larsen A, Møller EF, Sejr MK, Middelboe M, and Stedmon CA (2018). Biological transformation of Arctic dissolved organic matter in a NE Greenland fjord. Limnol. Oceanogr.10.1002/lno.11091
• Wilson B, Müller O, Nordmann EL, Seuthe L, Bratbak G and Øvreås L (2017). Changes in marine prokaryote composition with season and depth over an Arctic polar year. Front. Mar. Sci. 4:95. doi: 10.3389/fmars.2017.00095
• Paulsen ML, Nielsen SEB, Müller O, Møller EF, Stedmon CA, Juul-Pedersen T, Markager S, Sejr MK, Delgado Huertas A, Larsen A, Middelboe M. (2017) Carbon Bioavailability in a High Arctic Fjord Influenced by Glacial Meltwater, NE Greenland. Front. Mar. Sci. 4: 176. doi:10.3389/fmars.2017.00176.
• Paulsen M L, Doré H, Garczarek L, Seuthe L, Müller O, Sandaa RA, Bratbak G, and Larsen A (2016). Synechococcus in the Atlantic Gateway to the Arctic Ocean. Front. Mar. Sci. 3: 191. doi: 10.3389/fmars.2016.00191
• Harig L, Beinecke F, Oltmanns J, Muth J, Müller O, Rüping B, Twyman R, Fischer R, Prüfer D and Noll G (2012). Proteins from the FLOWERING LOCUS T-like subclade of the PEBP family act antagonistically to regulate floral initiation in tobacco. The Plant Journal, Volume 72, Issue 6, pages 908–921, December 2012, doi: 10.1111/j.1365-313X.2012.05125.x. 

PhD thesis:

• Müller O (2018) Implications of a changing Arctic on microbial communities: Following the effects of thawing permafrost from land to sea (http://bora.uib.no/handle/1956/18525)

 

 

Arven etter Nansen - The Nansen Legacy (https://arvenetternansen.com)

RF3 - The living Barents Sea

The knowledge of the structure and function of the ecosystem of the northern Barents Sea and adjacent slope to the central basin is strikingly unequal compared to the regular surveyed southern Barents Sea. Yet, the most radical changes in the physical environment are observed in the northern parts of the Barents Sea, where sea ice retreat and increasing water temperatures are reshaping the ecosystem.

Hypothesis: The ecosystems of the northern (Arctic-influenced) Barents Sea and adjacent slope and basin areas function fundamentally differently from the much better understood southern (Atlantic-influenced) region.

The work package The living Barents Sea investigates how organisms in the northern Barents Sea and adjacent slope respond to current and changing environmental conditions on the species and community levels by identifying characteristic communities, by delineating the relevant environmental forcing factors that structure these communities across seasons and habitats. Estimating the production and rate-limiting factors of these organisms, as well as entangling their detailed trophic linkages, is yet another focus of this work package. More concretely, the work package addresses the following tasks:

• Characterize biological communities in sympagic, pelagic and benthic realms in the seasonal ice zone of the northern Barents Sea and adjacent slope of the Arctic Basin in terms of biodiversity, abundance, biomass and distribution patterns in relation to environmental forcing, in particular sea ice
• Investigate the timing of critical biological processes including primary and secondary production, phenology of life cycles, and related processes and test how changing conditions may affect these seasonal patterns across several trophic levels
• Characterize the total annual production from microbes to fish along latitudinal and environmental gradients, identify production hot spots and how condition-specific variability in life history traits affect these
• Characterize lower trophic level food web structure and links to consumers including top predators, carbon cycling, and biological interactions, and investigate selected regulating factors

 

Ridges - Safe HAVens for ice-associated Flora and Fauna in a Seasonally ice-covered Arctic
(HAVOC - https://www.npolar.no/en/projects/havoc/)

HAVOC will study the role sea ice ridges play in the thinner ice pack in the Arctic Ocean. While the ice is getting thinner, the thicker parts of the ice cover are most likely to survive summer melt and provide the last habitat for ice-associated flora and fauna. The project will take part in the MOSAiC expedition.