Miriam Marquardt » Members

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Miriam Marquardt

UiT The Arctic University of NorwayArctic and Marine Biology
Address UiT The Arctic University of Norway Faculty of Biosciences, Fisheries and Economy Department of Arctic and Marine Biology Tromsø 9019 Work Phone: +47 776 56 140
Photo of Miriam Marquardt

Research interests:

Arctic marine biology with special interest in biodiversity, cryo-pelagic coupling and food web studies. Strong background in sea ice fauna and flora, protist and phyto- and zooplankton. Experienced in molecular approaches (HTS, Sanger, TSA FISH, bioinformatics), microscopy, ecological studies and statistics.

Current projects :

Completed projects:

  • 2018: Meiochart: Framsenter Incentive Funding for proposal writing and organization, ID 8220218 (PI)
  • 2017: KlimaSvar: Climate and Biodiversity status in Svalbard´s fjords, RiS: 10757
  • 2015-2016: EcoCice: Ecological Consequences of diminishing sea ice, Fram Centre, RiS: 10612
  • 2012-2016: MicroFun / Adventfjorden Field Campaign
    2008: CFL: Circumpolar Flaw Lead Study

Relevant scientific publications:

  1. Marquardt M., Skogseth R., Wiedmann I., Vader A., Reigstad M., Gabrielsen T.M. (accepted) Vertical export of marine pelagic protists in light of hydrography in an ice-free high-Arctic fjord throughout 2011-2012 (Adventfjorden, West Spitsbergen). Accepted March 2019 for publication in Aquatic Microbial Ecology
  2. Marquardt M, Majaneva S, Pitusi V, Søreide JE (2017) Pan-arctic distribution of the hydrozoan Sympagohydra tuuli? – First record in sea ice from Svalbard (European Arctic). Polar Biology  https://doi.org/10.1007/s00300-017-2219-8
  3. Marquardt M, Vader A, Stübner EI, Reigstad M, Gabrielsen TM (2016) Strong seasonality of marine microbial eukaryotes in a high-Arctic fjord (Isfjorden, in West Spitsbergen, Norway). Appl Environ Microbiol 82:1868 –1880. doi:10.1128/AEM.03208-15
  4. Stübner EI, Søreide JE, Reigstad M, Marquardt M, Blachowiak-Samolyk K (2016) Year-around meroplankton dynamics in high-Arctic Svalbard. J. Plankton Res. doi:10.1093/plankt/fbv124
  5. Wiedmann I, Reigstad M, Marquardt M, Vader A, Gabrielsen TM (2016) Seasonality of vertical flux and sinking particle characteristics in an ice-free high Arctic fjord – Different from subarctic fjords? Journal of Marine Systems 154(B):192-205. doi:10.1016/j.jmarsys.2015.10.003
  6. Vader A, Marquardt M, Meshram AR, Gabrielsen TM (2014) Key Arctic phototrophs are widespread in the polar night. Polar Bio 38: 13-21. doi: 10.1007/s00300-014-1570-2
  7. Marquardt M, Kramer, M, Carnat G, Werner I (2011) Vertical distribution of sympagic meiofauna in sea ice in the Canadian Beaufort Sea. Polar Biology, Volume 34, Number 12, 1887-1900. doi: 10.1007/s00300-011-1078-y


  1. PhD thesis: Marquardt (2016) Marine microbial eukaryotes in Svalbard waters: Seasonality, community composition and diversity (UNIS/UiT)

Popular science and outreach:

  • FramForum 2018: First record of the hydrozoan S. tuuli in Svalbard sea ice (Søreide et al.)
  • 2012- 2016: Writing entries for different outreach blogs: UNIS (2012-2013, not available anymore)
  • Marine incognitum
  • ARCTOS network
  • Cleopatra II fieldcampaign, Svalbardposten