Articles | Volume 18, issue 5
https://doi.org/10.5194/bg-18-1719-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-18-1719-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Mar 2021
Research article |
| 11 Mar 2021
| 11 Mar 2021
Modeling silicate–nitrate–ammonium co-limitation of algal growth and the importance of bacterial remineralization based on an experimental Arctic coastal spring bloom culture study
Tobias R. Vonnahme
CORRESPONDING AUTHOR
Department of Arctic and Marine Biology, UiT – The Arctic University
of Norway, Tromsø, Norway
Martial Leroy
Université Grenoble Alpes, Grenoble, France
Silke Thoms
Department of Biogeosciences, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven,
Germany
Dick van Oevelen
Department of Estuarine and Delta Systems, Royal Netherlands
Institute for Sea Research (NIOZ), and Utrecht University, Texel, Yerseke,
the Netherlands
H. Rodger Harvey
Department of Ocean and Earth Sciences, Old Dominion University,
Norfolk, USA
Svein Kristiansen
Department of Arctic and Marine Biology, UiT – The Arctic University
of Norway, Tromsø, Norway
Rolf Gradinger
Department of Arctic and Marine Biology, UiT – The Arctic University
of Norway, Tromsø, Norway
Ulrike Dietrich
Department of Arctic and Marine Biology, UiT – The Arctic University
of Norway, Tromsø, Norway
Christoph Völker
Department of Biogeosciences, Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, Bremerhaven,
Germany
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Short summary
Diatoms are crucial for Arctic coastal spring blooms, and their growth is controlled by nutrients and light. At the end of the bloom, inorganic nitrogen or silicon can be limiting, but nitrogen can be regenerated by bacteria, extending the algal growth phase. Modeling these multi-nutrient dynamics and the role of bacteria is challenging yet crucial for accurate modeling. We recreated spring bloom dynamics in a cultivation experiment and developed a representative dynamic model.
Diatoms are crucial for Arctic coastal spring blooms, and their growth is controlled by...
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