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Gradinger, Rolf

Department of Arctic and Marine Biology

Research interests

sea ice zone, phytoplankton, Arctic marine system ecology, primary production, ocean diversity


Curriculum Vitae

1986  Master in Biology
Natural Science Faculty, University of Kiel, Germany
1990  PhD in Marine Biology
Natural Science Faculty, University of Kiel, Germany

2016- UiT, Department of Arctic and Marine Biology
2014 -  Affiliated faculty, School of Fisheries and Ocean Sciences (SFOS), University of Alaska Fairbanks (UAF), USA

1992 – 2000  Assistant Professor (Hochschulassistent, Oberassistent): University of Kiel, Germany
2001 – 2014  Assistant, Associate, and Full Professor in Oceanography, SFOS, UAF
2011 – 2014  Associate Dean, SFOS, UAF (head of three SFOS academic programs: Fisheries, Oceanography, Marine Biology)

• Research, awards - recent examples
2001 – 2014  During tenure at UAF: Competitive grants awarded from e.g. U.S. National Science Foundation (NSF), U.S. National Oceanic and Atmospheric Administration, U.S. Bureau of Ocean Management, Alfred P. Sloan Foundation. 
2013-2016  Example 1: NSF (PI): Diversity, seasonality and function of parasitic fungi in Arctic Sea ice. 
2007–2014  Example 2: NSF (PI): BEST: Sea ice algae, a major food source for herbivorous plankton and benthos in the eastern Bering Sea 
2009-2013 Example 3: NSF (Co-PI): Tracking the seasonal contribution of algal fatty acids to the Arctic marine system.
2004-2010 Example 4: Alfred P. Sloan Foundation (PI): Arctic Ocean Diversity, a Census of Marine Life Project. 
Publication impact (Google scholar, Oct 11, 2018): 5093 citations, h-index 44

1992 – 2000   Number of PhD/ Master Students: 5 PhD, 3 MSc
Natural Science Faculty, University of Kiel, Germany
2001 – 2014 Number of PhD/ Master Students, main advisor: 1 PhD, 6 MSc; on additional student committees: 18, SFOS, UAF


2016- Undergraduate and graduate level courses at UiT
2011 – 2014 as Associate Dean responsible for all academic programs SFOS, UAF; total ca. 300 graduate students in fisheries, marine biology, oceanography.
2014 Guest lecturer: University Courses in Svalbard (UNIS): winter ecology
2001 – 2014  Faculty member: SFOS, UAF: graduate level core classes in Biological Oceangraphy, Polar Ecosystems, Marine Ecology, Sea ice processes, Phytoplankton, including field classes on sea ice ecology.
1992 – 2000  Faculty member (Hochschulassistent, Oberassistent): University of Kiel, Germany, graduate level classes on polar marine ecosystems, marine birds, sea ice ecology, polar oceanography, climate change.
2002- Public outreach web sites: e.g.

2016 Session co-chair: PICES international zooplankton conference, Bergen, Norway
2015  Theme co-chair for Arctic Frontiers Conference, Tromsø, Norway
2011 – 2014 Steering committee of the Alaska Marine Science Symposium, USA
2010 Session co-chair Arctic Frontiers Conference, Tromsø, Norway
2008 Session chair at ASLO meeting, Orlando, USA
2003 Session chair, Gordon Research Conference, Ventura, USA

2014 – 2015  Leader of Barents Sea and Polar Oceans program at Institute of Marine Research
2011 – 2014  Associate Dean, SFOS, UAF, USA
2012 – 2014 Director of Institute for Marine Science, UAF, USA
2011 – 2014 Director of Coastal Marine Institute, UAF, USA
2001 – 2014  Member of numerous faculty committees at UAF: e.g. curriculum affairs committee, senator in faculty senate, chair of program review committee

1992 – Reviews for peer reviewed journals (e.g. Mar Ecol Progr Ser, Mar Biol, Polar Biol, Deep Sea Res), 10-15 per year
2001 –  Reviews for funding agencies: NSF (about 3 per year), also for European agencies, e.g. NERC, National Research Council of Italy
2004-2007 UNOLS Arctic Icebreaker Coordinating Committee (USA)
2005 Chief scientist on NOAA funded multi-PI Arctic Ocean expedition
2005-2009  Editor Polar Biology, Springer
2008  Bering Sea Ecosystem Study Scientific Advisory Board, U.S. NSF
2009-2014 Member NOAA Panel on China-US Cooperation
2010-2011 Chair of UAF wide Program Review Committee
2010-2014  Co-chair International Arctic Science Committee  (IASC) Marine Working Group, U.S. representative
2011-2012 U.S. representative on Arctic Council program: CBMP (sea ice group)
2015 -  Member scientific advisory board for Polarstern Expeditions, AWI, Germany

Online records:

Google Scholar:

ORCID ID: 0000-0001-6035-3957

Publications in CRIStin

  • Kunisch, Erin; Bluhm, Bodil; Daase, Malin; Gradinger, Rolf; Hop, Haakon; Melnikov, Igor A.; Varpe, Øystein; Berge, Jørgen. Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic. Journal of Plankton Research 2020. ISSN 0142-7873.s doi: 10.1093/plankt/fbz072.

  • Hassett, Brandon; Thines, Marco; Buaya, Anthony; Ploch, Sebastian; Gradinger, Rolf. A glimpse into the biogeography, seasonality, and ecological functions of arctic marine Oomycota. IMA Fungus 2019; Volum 10 (1). ISSN 2210-6340.s doi: 10.1186/s43008-019-0006-6.

  • Hassett, Brandon Thomas; Borrego, Eli; Vonnahme, Tobias R.; Rämä, Teppo; Kolomiets, M.V.; Gradinger, Rolf. Arctic marine fungi: biomass, functional genes, and putative ecological roles. The ISME Journal 2019; Volum 13 (6). ISSN 1751-7362.s 1484 - 1496.s doi: 10.1038/s41396-019-0368-1.

  • Hassett, Brandon Thomas; Gradinger, Rolf. New Species of Saprobic Labyrinthulea (=Labyrinthulomycota) and the Erection of a Gen. Nov. to Resolve Molecular Polyphyly within the Aplanochytrids. Journal of Eukaryotic Microbiology 2018; Volum 65 (4). ISSN 1066-5234.s 475 - 483.s doi: 10.1111/jeu.12494.

  • Hop, Haakon; Bluhm, Bodil; Melnikov, Igor A.; Poulin, Michel; Vihtakari, Mikko; Collins, Eric; Gradinger, Rolf; Juul-Pedersen, Thomas; von Quillfeldt, Cecilie. Sea ice biota: Excerpts from the State of the Arctic Marine Biodiversity Report by the Sea Ice Biota Expert Network/CBMP. PeerJ Preprints 2018. ISSN 2167-9843.

  • Bluhm, Bodil; Hop, Haakon; Vihtakari, Mikko; Gradinger, Rolf; Iken, Katrin; Melnikov, Igor A.; Søreide, Janne. Sea ice meiofauna distribution on local to pan-Arctic scales. Ecology and Evolution 2018; Volum 8 (4). ISSN 2045-7758.s 2350 - 2364.s doi: 10.1002/ece3.3797.

  • Hassett, Brandon T.; Ducluzeau, A.L.L.; Collins, R.E.; Gradinger, Rolf. Spatial distribution of aquatic marine fungi across the western Arctic and sub-Arctic. Environmental Microbiology 2017; Volum 19 (2). ISSN 1462-2912.s 475 - 484.s doi: 10.1111/1462-2920.13371.

  • Hassett, Brandon; Ducluzeau, A.L.L.; Collins, R.E.; Gradinger, Rolf. Spatial distribution of aquatic marine fungi across the western Arctic and sub‐arctic. Environmental Microbiology 2017; Volum 19. ISSN 1462-2912.s 475 - 484.

  • Hassett, Brandon Thomas; Gradinger, Rolf. Eukaryotic microbial richness increases with latitude and decreasing temperature in the Pacific Subarctic domain in late winter. Polar Biology 2017; Volum 40 (11). ISSN 0722-4060.s 2161 - 2169.s doi: 10.1007/s00300-017-2131-2.

  • Bluhm, Bodil; Swadling, K; Gradinger, Rolf. Sea ice as habitat for macrograzers. Wiley-Blackwell 2017 ISBN 978-1-118-77838-8.s doi: 10.1002/9781118778371.ch16.

  • Gradinger, Rolf; Bluhm, Bodil. Das Leben im Eispalast: Flora und Fauna des arktischen Meereises. Springer 2017 ISBN 978-3-662-49713-5.s 51 - 62.s doi: 10.1007/978-3-662-49714-2_5.

  • Hassett, Brandon T.; Gradinger, Rolf. Chytrids dominate arctic marine fungal communities. Environmental Microbiology 2016; Volum 18 (6). ISSN 1462-2912.s 2001 - 2009.s doi: 10.1111/1462-2920.13216.

  • Hassett, Brandon T.; Lopez, J. Andres; Gradinger, Rolf. Two new species of marine saprotrophic sphaeroformids in the mesomycetozoea isolated from the sub-arctic Bering Sea. (fulltekst) Protist 2015; Volum 166 (3). ISSN 1434-4610.s 310 - 322.s doi: 10.1016/j.protis.2015.04.004.

  • Grebmeier, Jacqueline M.; Bluhm, Bodil; Cooper, Lee W.; Danielson, Seth L.; Arrigo, Kevin R.; Blanchard, Arny L.; Clarke, Janet T.; Day, Robert H.; Frey, Karen E.; Gradinger, Rolf; Kędra, Monika; Konar, Brenda; Kuletz, Kathy J.; Lee, Sang H.; Lovvorn, James R.; Norcross, Brenda L.; Okkonen, Stephen R.. Ecosystem characteristics and processes facilitating persistent macrobenthic biomass hotspots and associated benthivory in the Pacific Arctic. Progress in Oceanography 2015; Volum 136. ISSN 0079-6611.s 92 - 114.s doi: 10.1016/j.pocean.2015.05.006.

  • Szymanski, Anna; Gradinger, Rolf. The diversity, abundance and fate of ice algae and phytoplankton in the Bering Sea. Polar Biology 2015; Volum Published ahead of print. ISSN 0722-4060.s doi: 10.1007/s00300-015-1783-z.

  • Leu, Eva; Mundy, Christopher John; Assmy, Philipp; Campbell, Karley; Gabrielsen, Tove M.; Gosselin, Michel; Juul-Pedersen, Thomas; Gradinger, Rolf. Arctic spring awakening - Steering principles behind the phenology of vernal ice algal blooms. Progress in Oceanography 2015; Volum 139. ISSN 0079-6611.s 151 - 170.s doi: 10.1016/j.pocean.2015.07.012.

  • Nelson, R. John; Ashjian, Carin; Bluhm, Bodil; Conlan, Kathleen E.; Gradinger, Rolf; Grebmeier, Jacqueline M.; Hill, Victoria J.; Hopcroft, Russell R.; Hunt, Brian P.V.; Joo, Hyoung M.; Kirchman, David; Kosobokova, Ksenia N.; Lee, Sang H.; Li, W; Lovejoy, Connie; Poulin, Michel; Sherr, Evelyn; Young, Kelly W.. Biodiversity and Biogeography of the Lower Trophic Taxa of the Pacifi c Arctic Region: Sensitivities to Climate Change. Springer 2014 ISBN 978-94-017-8862-5.s 269 - 336.s doi: 10.1007/978-94-017-8863-2_10.

  • Eicken, H.; Bluhm, Bodil; Collins, R.E.; Gradinger, Rolf; Haas, C; Ingham, M; Mahoney, A; Nicolaus, M.; Perovich, D. Field techniques in sea ice research. Eolss Publishing CO. Ltd. 2014 ISBN 9781780215358.

  • Hop, Haakon; Bluhm, Bodil; Daase, Malin; Gradinger, Rolf; Poulin, M. Arctic Sea Ice Biota. (fulltekst) 2013.s 51 - 57.

  • Bluhm, Bodil; Michel, C; Gallucci, V.; Gaston, A. J.; Gordillo, F; Gradinger, Rolf; Hopcroft, R; Jensen, N.; Mustonen, T; Niemi, A.; Nielsen, T.G.. Biodiversity of Arctic marine ecosystems and responses to climate change. Biodiversity 2012. ISSN 1488-8386.s 200 - 214.s doi: 10.1080/14888386.2012.724048.

  • McConnell, Brenna; Gradinger, Rolf; Iken, Katrin; Bluhm, Bodil. Growth rates of arctic juvenile Scolelepis squamata (Polychaeta: Spionidae) isolated from Chukchi Sea fast ice. Polar Biology 2012; Volum 35 (10). ISSN 0722-4060.s 1487 - 1494.s doi: 10.1007/s00300-012-1187-2.

  • Bluhm, Bodil; Gebruk, A; Gradinger, Rolf; Hopcroft, Russell R.; Huettmann, Falk; Kosobokova, Ksenia N.; Sirenko, Boris; Weslawski, Jan Marcin. Arctic Marine Biodiversity: An Update of Species Richness and Examples of Biodiversity Change. Oceanography 2011; Volum 24 (3). ISSN 1042-8275.s 232 - 248.s doi: 10.5670/oceanog.2011.75.

  • Gradinger, Rolf; Bluhm, Bodil. Timing of Ice Algal Grazing by the Arctic Nearshore Benthic Amphipod Onisimus litoralis. Arctic 2010; Volum 63 (3). ISSN 0004-0843.s 355 - 358.s doi: 10.14430/arctic1498.

  • Gradinger, Rolf; Bluhm, Bodil; Iken, Katrin. Arctic sea-ice ridges—Safe heavens for sea-ice fauna during periods of extreme ice melt?. Deep-sea research. Part II, Topical studies in oceanography 2010; Volum 57 (1-2). ISSN 0967-0645.s 86 - 95.s doi: 10.1016/j.dsr2.2009.08.008.

  • Gradinger, Rolf; Bluhm, Bodil; Hopcroft, Russell R.; Gebruk, Andrey; Kosobokova, Ksenia N.; Sirenko, Boris; Weslawski, Jan Marcin. Marine life in the Arctic. Wiley-Blackwell 2010 ISBN 978-1-4051-9297-2.s 183 - 202.

  • Kunisch, Erin; Bluhm, Bodil; Daase, Malin; Gradinger, Rolf; Hop, Haakon; Melnikov, Igor A.; Øystein, Varpe; Berge, Jørgen. Pelagic occurrences of the ice amphipod Apherusa glacialis throughout the Arctic. Journal of Plankton Research 2020. ISSN 0142-7873.s doi: 10.1093/plankt/fbz072.

  • Pitusi, Vanessa; Gradinger, Rolf; Marquardt, Miriam; Søreide, Janne. Seasonal development and growth of sympagic meiofauna and the role of sea ice for the successful recruitment in the high Arctic. Arctic Frontiers 2019-01-20 - 2019-01-24 2019.

  • Gradinger, Rolf. Blowing in the Arctic wind. 2019.

  • Gradinger, Rolf. Unique Challenges at the start of an Arctic winter Expedition. 2019.

  • Wiedmann, Ingrid; Bluhm, Bodil; Nöthig, Eva-Maria; Ershova, Elizaveta; Kosobokova, Ksenia; Gradinger, Rolf. Who feeds the Benthos in the Arctic Ocean Basin?. ARCEx Conference 2019-10-22 - 2019-10-24 2019.

  • Gradinger, Rolf; Loge, Julia. Verdens største Arktis-ekspedisjon seiler fra Tromsø på fredag. (fulltekst) 2019.

  • Gradinger, Rolf; Kinitsch, Erin. Arctic researchers will lock this ship in ice for a year to study the changing polar region. (fulltekst) 2019.

  • Bluhm, Bodil; Hop, Haakon; Melnikov, Igor A.; Poulin, Michel; Vihtakari, Mikko; Collins, Eric; Gradinger, Rolf; Juul-Petersen, Thomas; von Quillfeldt, Cecilie. Sea ice Biota on a pan-Arctic scale: Status and Trends – findings from the State of the Arctic Marine Biodiversity Report.. Arctic Frontiers Conference 2018-01-21 - 2018-01-26 2018.

  • Kunisch, Erin; Drivdal, Magnus; Berge, Jørgen; Bluhm, Bodil; Daase, Malin; Gradinger, Rolf; Melnikov, Igor A.; Varpe, Øystein; Vihtakari, Mikko. Exploring life-cycle adaptations in a declining sea-ice environment: are sympagic amphipods truly sympagic?. POLAR 2018 2018-06-19 - 2018-06-23 2018.

  • Gradinger, Rolf. In Nacht und Eis – Eine Forschungsfahrt in der Polarnacht. (fulltekst) 2017.

  • Frey, Karen E.; Comiso, Josefino C.; Cooper, Lee W.; Eisner, Lisa B; Gradinger, Rolf; Grebmeier, Jacqueline M.; Trembley, Jean Eric. Arctic Ocean Primary Productivity. (fulltekst) 2017.

  • Gradinger, Rolf. Blog: In Nacht und Eis. (fulltekst) 2017.

  • Gradinger, Rolf. Was ist bloss in der Arktis los?. (fulltekst) 2017.

  • Gradinger, Rolf. Interview of Rolf Gradinger for the UiT Polarmuseum exhibition in Tromsoe. 2017.

  • Gradinger, Rolf. Ecosystem study plans during the MOSAIC project.. Arctic Frontiers 2017-01-24 - 2017-01-24 2017.

  • Gradinger, Rolf. MOSAIC: Team Ecosystem. Arctic Science Summit Week 2017-04-04 - 2017-04-07 2017.

  • Gradinger, Rolf. Impressionen aus dem Eismeer. 2017.

  • Kunisch, Erin; Bluhm, Bodil; Gradinger, Rolf; Hop, Haakon; Varpe, Øystein; Berge, Jørgen; Daase, Malin; Melnikov, Igor; Vihtakari, Mikko. Pan-Arctic distribution of the sympagic amphipod Apherusa glacialis elucidates life-cycle characteristics. ESSAS - Ecosystem Studies of Sub-Arctic and Arctic Seas Open Science Meeting 2017-06-12 - 2017-06-15 2017.

  • Reigstad, Marit; Wassmann, Paul; Bluhm, Bodil; Gradinger, Rolf; Berge, Jørgen. Living Ice/ Levende is. Living Ice 2017-01-22 - 2017-12-31 2017.

  • Gradinger, Rolf; Frey, Karen; Comiso, Josefino C.; Cooper, Lee; Grebmeier, Jacqueline; Trembley, Jean Eric. Arctic Ocean Primary Productivity. (fulltekst) 2016.

  • Dilliplaine, Kyle; Collins, Eric; Bluhm, Bodil; Gradinger, Rolf. Biological influence and impact of oil spills in ice covered waters. Alaska Marine Science Symposium 2016-01-25 - 2016-01-29 2016.

  • Søreide, Janne E.; Gradinger, Rolf; Niehoff, Barbara; Bluhm, Bodil; Gabrielsen, Tove M.; Peeken, Ilka; Johnsen, Geir; Berge, Jørgen. Arctic Ocean winter ecology – the Big Black Box. 3rd Arctic Observing Summit 2016-03-12 - 2016-03-18 2016.

  • Ingvaldsen, Randi; Bogstad, Bjarte; Dolgov, Andrey V.; Ellingsen, Kari Elsa; Gjøsæter, Harald; Gradinger, Rolf; Johannesen, Edda; Tveraa, Torkild; Yoccoz, Nigel Gilles. Sources of uncertainties in cod distribution models. Nature Climate Change 2015; Volum 5 (9). ISSN 1758-678X.s 788 - 789.s doi: 10.1038/nclimate2761.

  • Bluhm, Bodil; Gradinger, Rolf; Hopcroft, Russell R.. Arctic Ocean Diversity: synthesis. Marine Biodiversity 2011; Volum 41. ISSN 1867-1616.s 1 - 4.

  • Member of research group