Articles | Volume 18, issue 23
Biogeosciences, 18, 6213–6227, 2021
https://doi.org/10.5194/bg-18-6213-2021
Biogeosciences, 18, 6213–6227, 2021
https://doi.org/10.5194/bg-18-6213-2021
Research article
01 Dec 2021
Research article | 01 Dec 2021

Modeling cyanobacteria life cycle dynamics and historical nitrogen fixation in the Baltic Proper

Jenny Hieronymus et al.

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Cited articles

Almroth-Rosell, E., Eilola, K., Hordoir, R., Meier, H. E. M., and Hall, P. O. J.: Transport of fresh and resuspended particulate organic material in the Baltic Sea – a model study, J. Marine Syst., 87, 1–12, https://doi.org/10.1016/j.jmarsys.2011.02.005, 2011. 
Almroth-Rosell, E., Eilola, K., Kuznetsov, I., Hall, P. O., and Meier, H. E. M.: A new approach to model oxygen dependent benthic phosphate fluxes in the Baltic Sea, J. Marine Syst., 144, 127–141, https://doi.org/10.1016/j.jmarsys.2014.11.007, 2015. 
Beckmann, A. and Döscher, R.: A method for improved representation of dense water spreading over topography in geopotential-coordinate models, J. Phys. Oceanogr., 27, 581–591, https://doi.org/10.1175/1520-0485(1997)027<0581:AMFIRO>2.0.CO;2, 1997. 
Degerholm, J., Gundersen, K., Bergman, B., and Söderbäck, E.: Phosphorus-limited growth dynamics in two Baltic Sea cyanobacteria, Nodularia sp. and Aphanizomenon sp., FEMS Microb. Ecol., 58, 323–332, https://doi.org/10.1111/j.1574-6941.2006.00180.x, 2006. 
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Short summary
Dense blooms of cyanobacteria occur every summer in the Baltic Proper and can add to eutrophication by their ability to turn nitrogen gas into dissolved inorganic nitrogen. Being able to correctly estimate the size of this nitrogen fixation is important for management purposes. In this work, we find that the life cycle of cyanobacteria plays an important role in capturing the seasonality of the blooms as well as the size of nitrogen fixation in our ocean model.
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