Blar i forfatter Fakultet for biovitenskap, fiskeri og økonomi "Dabrowska, Anna Maria"

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    • Earlier sea-ice melt extends the oligotrophic summer period in the Barents Sea with low algal biomass and associated low vertical flux 

      Kohlbach, Doreen; Goraguer, Lucie; Bodur, Yasemin V.; Müller, Oliver; Amargant Arumí, Martí; Blix, Katalin; Bratbak, Gunnar; Chierici, Melissa; Dabrowska, Anna Maria; Dietrich, Ulrike; Edvardsen, Bente; Garcia, Laura; Gradinger, Rolf Rudolf; Hop, Haakon; Jones, Elizabeth Marie; Øyvind, Lundesgaard; Olsen, Lasse Mork; Reigstad, Marit; Saubrekka, Karoline; Tatarek, Agnieszka; Wiktor, Josef Maria; Wold, Anette; Assmy, Philipp (Journal article; Tidsskriftartikkel, 2023-03-27)
      The decrease in Arctic sea-ice extent and thickness as a result of global warming will impact the timing, duration, magnitude and composition of phytoplankton production with cascading effects on Arctic marine food-webs and biogeochemical cycles. Here, we elucidate the environmental drivers shaping the composition, abundance, biomass, trophic state and vertical flux of protists (unicellular eukaryotes), ...

    • The Influence of Sea Ice Cover and Atlantic Water Advection on Annual Particle Export North of Svalbard 

      Dybwad, Christine Schumann; Lalande, Catherine; Bodur, Yasemin V.; Henley, Sean; Cottier, Finlo Robert; Ershova, Elizaveta; Hobbs, Laura; Last, Kim S.; Dabrowska, Anna Maria; Reigstad, Marit (Journal article; Tidsskriftartikkel; Peer reviewed, 2022-10-04)
      The Arctic Ocean north of Svalbard has recently experienced large sea ice losses and the increasing prominence of Atlantic water (AW) advection. To investigate the impact of these ongoing changes on annual particle export, two moorings with sequential sediment traps were deployed in ice-free and seasonally ice-covered waters on the shelf north (NSv) and east (ESv) of Svalbard, collecting sinking ...

    • Seasonal patterns of vertical flux in the northwestern Barents Sea under Atlantic Water influence and sea-ice decline 

      Bodur, Yasemin Vicdan; Renaud, Paul Eric; Goraguer, Lucie Hélène Marie; Amargant I Arumi, Marti; Assmy, Philipp Kurt Wolf; Dabrowska, Anna Maria; Marquardt, Miriam; Renner, Angelika; Tatarek, Agnieska; Reigstad, Marit (Journal article; Tidsskriftartikkel; Peer reviewed, 2023-09-27)
      The northern Barents Sea is a productive Arctic inflow shelf with a seasonal ice cover and as such, a location with an efficient downward export of particulate organic matter through the biological carbon pump. The region is under strong influence of Atlantification and sea-ice decline, resulting in a longer open water and summer period. In order to understand how these processes influence the ...

    • When a year is not enough: Further study of the seasonality of planktonic protist communities structure in an ice-free high arctic fjord (adventfjorden, west spitsbergen) 

      Dabrowska, Anna Maria; Wiktor, Józef Maria; Wiktor, Józef Mikolaj; Kristiansen, Svein; Vader, Anna; Gabrielsen, Tove (Journal article; Tidsskriftartikkel; Peer reviewed, 2021-07-20)
      As a contribution to understanding the ecological framework of protistan seasonal succession patterns, we present the weekly-to-monthly (January–October) light microscopy-based study of nano- and microplanktonic protist communities of Adventfjorden waters in 2013. In general, protist dynamics corresponded to the classic paradigm for the Arctic ice-free waters with extremely low abundance and diversity ...