Hanna Kauko » Members

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Hanna Kauko

Post-doctoral researcher Norwegian Polar InstituteResearch department: Biodiversity
Work address Norwegian Polar Institute Fram Centre Tromsø 9296 Norway
Photo of Hanna Kauko

Research interests:

  • Biological oceanography
  • Bio-optics: algal pigments and absorption including methods
  • Phytoplankton and ice algal ecology.

Post-doc project description:

Phytoplankton ecology in the Southern Ocean

My post doc project investigates phytoplankton bloom phenology, environmental control, community composition and carbon export in Kong Håkon VII Hav in the Southern Ocean. The field work was conducted in February-April 2019 on R/V Kronprins Haakon.

Start date: Feb 2019
End date: Feb 2021

Scientific publications:

  1. Olsen LM, Duarte P, Peralta-Ferriz C, Kauko HM, Johansson M, Peeken I, Różańska-Pluta M, Tatarek A, Wiktor J, Fernández-Méndez M, Wanger PM, Pavlov AK, Hop H, Assmy P (2019) A red tide in the pack ice of the Arctic Ocean. Sci Rep 9: 9536. doi: 10.1038/s41598-019-45935-0
  2. Halbach L, Vihtakari M, Duarte P, Everett A, Granskog MA, Hop H, Kauko HM, Kristiansen S, Myhre PI, Pavlov AK, Pramanik A, Tatarek A, Torsvik T, Wiktor JM, Wold A, Wulff A, Steen H and Assmy P (2019) Tidewater glaciers and bedrock characteristics control the phytoplankton growth environment in a fjord in the Arctic. Front Mar Sci 6:254. doi: 10.3389/fmars.2019.00254
  3. Kauko HM, Pavlov AK, Johnsen G, Granskog MA, Peeken I, Assmy P (2019) Photoacclimation state of an Arctic under-ice phytoplankton bloom. J Geophys Res Oceans 124: 1750–1762. doi:10.1029/2018JC014777
  4. Kauko HM, Olsen LM, Duarte P, Peeken I, Granskog MA, Johnsen G, Fernández-Méndez M, Pavlov AK, Mundy CJ, Assmy P (2018) Algal colonization of young Arctic sea ice in spring. Front Mar Sci 5:199. doi: 10.3389/fmars.2018.00199
  5. Fernández-Méndez M, Olsen LM, Kauko HM, Meyer A, Rösel A, Merkouriadi I, Mundy CJ, Ehn JK, Johansson AM, Wagner PM, Ervik Å, Sorrell BK, Duarte PM, Wold A, Hop H, Assmy P (2018) Algal hot spots in a changing Arctic Ocean: Sea-ice ridges and the snow-ice interface. Front Mar Sci 5:75. doi:10.3389/fmars.2018.00075
  6. Kauko HM, Taskjelle T, Assmy P, Pavlov A, Mundy CJ, Duarte P, Fernández-Méndez M, Olsen LM, Hudson SR, Johnsen G, Elliott A, Wang F, Granskog MA (2017) Windows in Arctic sea ice – light transmission and ice algae in a refrozen lead. J. Geophys. Res. Biogeosciences 122. doi:10.1002/2016JG003626
  7. Olsen LM, Laney SR, Duarte P, Kauko HM, Fernández-Méndez M, Mundy CJ, Rösel A, Meyer A, Itkin P, Cohen L, Peeken I, Tatarek A, Róźańska M, Wiktor J, Taskjelle T, Pavlov A, Hudson SR, Granskog MA, Hop H, Assmy P (2017) The seeding of ice-algal blooms in Arctic pack ice: the multiyear ice seed repository hypothesis. J. Geophys. Res. Biogeosciences 122. doi:10.1002/2016JG003668
  8. Duarte P, Meyer A, Olsen LM, Kauko HM, Assmy P, Rösel A, Itkin P, Hudson SR, Granskog MA, Gerland S, Sundfjord A, Steen H, Hop H, Cohen L, Peterson AK, Jeffery N, Eliott SM, Hunke EC, Turner AK (2017) Sea-ice thermohaline-dynamics and biogeochemistry in the Arctic Ocean: empirical and model results. J. Geophys. Res. Biogeosciences 122. doi:10.1002/2016JG003660
  9. Pavlov A,  Taskjelle T, Hamre B, Kauko HM, Hudson SR, Assmy P, Duarte P, Fernández-Méndez M, Mundy CJ, Granskog MA (2017) Altered optical properties and underwater light regime during an extensive Arctic under-ice bloom of Phaeocystis pouchetii. J. Geophys. Res. Oceans, doi:10.1002/2016JC012471
  10. Kowalczuk P, Meler J, Kauko HM, Pavlov AK, Zablocka M, Peeken I, Dybwad C, Castellani G, Granskog MA (2017) Bio-optical properties of Arctic drift ice and surface waters north of Svalbard from winter to spring. J. Geophys. Res. Oceans. doi: 10.1002/2016JC012589
  11. Meyer A, Sundfjord A, Fer I, Provost C, Villacieros-Robineau N, Koenig Z, Onarheim IH, Smedsrud L-H, Duarte P, Dodd PA, Graham R, Schmidtko S, Kauko HM (2017) Winter to summer oceanographic observations in the Arctic ocean north of Svalbard. J. Geophys. Res. Oceans. doi: 10.1002/2016JC012391
  12. Assmy P, Fernández-Méndez M, Duarte P, Meyer A, Randelhoff A, Mundy CJ, Olsen LM, Kauko HM et al. (2017) Leads in Arctic pack ice enable early phytoplankton blooms below snow-covered sea ice. Sci Rep 7, 40850. doi: 10.1038/srep40850
  1. Kauko HM (2013) Stimulated and natural patterns of bioluminescence in the dinoflagellate Alexandrium ostenfeldii. Master’s thesis at the University of Helsinki, Finland. https://helda.helsinki.fi/handle/10138/40341?locale-attribute=en
  2. Simis SGH and Kauko HM (2012) In vivo mass-specific absorption spectra of phycobilipigments through selective bleaching. Limnology and Oceanography Methods 10:214-226. http://www.aslo.org/lomethods/free/2012/0214.html