Browsing Brage IMR by Author "Kauko, Hanna Maria"

Now showing items 1-5 of 5

    • Absence of photophysiological response to iron addition in autumn phytoplankton in the Antarctic sea-ice zone 

      Singh, Asmita; Fietz, Susanne; Thomalla, Sandy J.; Sanchez, Nicolas; Ardelan, Murat V.; Moreau, Sebastian; Kauko, Hanna Maria; Fransson, Agneta; Chierici, Melissa; Samanta, Saumik; Mtshali, Thato N.; Roychoudhury, Alakendra N.; Ryan-Keogh, Thomas J. (Peer reviewed; Journal article, 2023)
      he high nutrient–low chlorophyll condition of the Southern Ocean is generally thought to be caused by the low bioavailability of micronutrients, particularly iron, which plays an integral role in phytoplankton photosynthesis. ...

    • Climate change impacts on sea-ice ecosystems and associated ecosystem services 

      Steiner, Nadja; Bowman, Jeff; Campbell, Karley; Chierici, Melissa; Eronen-Rasimus, Eeva; Falardeau, Marianne; Flores, Hauke; Fransson, Agneta; Herr, Helena; Insley, Stephen J.; Kauko, Hanna Maria; Lannuzel, Delphine; Loseto, Lisa; Lynnes, Amanda; Majewski, Andy; Meiners, Klaus M.; Miller, Lisa; Michel, Loic; Moreau, Sebastien; Nacke, Melissa; Nomura, Daiki; Tedesco, Letizia; van Franeker, Jan Andries; Leeuwe, Maria van; Wongpan, Pat (Peer reviewed; Journal article, 2021)
      A rigorous synthesis of the sea-ice ecosystem and linked ecosystem services highlights that the sea-ice ecosystem supports all 4 ecosystem service categories, that sea-ice ecosystems meet the criteria for ecologically or ...

    • Phenology and Environmental Control of Phytoplankton Blooms in the Kong Håkon VII Hav in the Southern Ocean 

      Kauko, Hanna Maria; Hattermann, Tore; Ryan-Keogh, Thomas J.; Singh, Asmita; de Steur, Laura; Fransson, Agneta; Chierici, Melissa; Falkenhaug, Tone; Hallfredsson, Elvar H.; Bratbak, Gunnar; Tsagaraki, Tatiana Margo; Berge, Terje; Zhou, Qin; Moreau, Sebastien (Peer reviewed; Journal article, 2021)
      Knowing the magnitude and timing of pelagic primary production is important for ecosystem and carbon sequestration studies, in addition to providing basic understanding of phytoplankton functioning. In this study we use ...

    • Tidewater glaciers and bedrock characteristics control the phytoplankton growth environment in a fjord in the arctic 

      Halbach, Laura; Vihtakari, Mikko; Duarte, Pedro; Everett, Alistair; Granskog, Mats; Hop, Haakon; Kauko, Hanna Maria; Kristiansen, Svein; Myhre, Per Inge; Pavlov, Alexey K.; Pramanik, Ankit; Tatarek, Agnieszka; Torsvik, Tomas; Wiktor, Józef Maria; Wold, Anette; Wulff, Angela; Steen, Harald; Assmy, Philipp (Journal article; Peer reviewed, 2019)
      Meltwater discharge from tidewater glaciers impacts the adjacent marine environment. Due to the global warming, tidewater glaciers are retreating and will eventually terminate on land. Yet, the mechanisms through which ...

    • Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre 

      Moreau, Sebastian; Hattermann, Tore; de Steur, Laura; Kauko, Hanna Maria; Ahonen, Heidi; Ardelan, Murat van; Assmy, Philipp; Chierici, Melissa; Descamps, Sebastien; Dinter, Tilman; Falkenhaug, Tone; Fransson, Agneta; Grønningsæter, Eirik; Hallfredsson, Elvar Halldor; Huhn, Oliver; Lebrun, Anais; Lowther, Andrew; Lübcker, Nico; Monteiro, Pedro; Peeken, Ilka; Roychoudhury, Alakendra; Różańska, Magdalena; Ryan-Keogh, Thomas; Sanchez Puerto, Nicolas; Singh, Asmita; Simonsen, Jan Henrik; Steiger, Nadine; Thomalla, Sandy J.; van Tonder, Andre; Wiktor, Josef M; Steen, Harald (Peer reviewed; Journal article, 2023)
      The Southern Ocean is a major sink of anthropogenic CO2 and an important foraging area for top trophic level consumers. However, iron limitation sets an upper limit to primary productivity. Here we report on a considerably ...