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Model study on the ecosystem impact of a variable C:N:P ratio for cyanobacteria in the Baltic Proper

Author

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  • Kuznetsov, I.
  • Neumann, T.
  • Burchard, H.

Abstract

The goal of this work is to estimate the significance of changes in the elemental composition of cyanobacteria on the ecosystem of the Baltic Sea, especially on oxygen depletion in the deep layers of the Baltic Proper, by means of mathematical modeling tools. In solving this problem a coupled physical–biogeochemical model is used. The physical basis for this model approach is the water column model GOTM (General Ocean Turbulence Model, see www.gotm.net). The biogeochemical basis for this model study is the ERGOM model (The Baltic Sea Research Institute’s Ecosystem Model) with some modifications. The ERGOM model was modified to allow the dynamics of N:P and C:P ratios in cyanobacteria. These ratios are controlled by phosphate concentrations in ambient water. Variable C:N:P ratios are used for cyanobacteria, detritus and sediment detritus.

Suggested Citation

  • Kuznetsov, I. & Neumann, T. & Burchard, H., 2008. "Model study on the ecosystem impact of a variable C:N:P ratio for cyanobacteria in the Baltic Proper," Ecological Modelling, Elsevier, vol. 219(1), pages 107-114.
    • Handle: RePEc:eee:ecomod:v:219:y:2008:i:1:p:107-114
    DOI: 10.1016/j.ecolmodel.2008.08.002
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    Cited by:

    1. Wan, Zhenwen & Bi, Hongsheng, 2014. "Comparing model scenarios of variable plankton N/P ratio versus the constant one for the application in the Baltic Sea," Ecological Modelling, Elsevier, vol. 272(C), pages 28-39.
    2. Jing Chen & Yongqiang Zhou & Yunlin Zhang, 2022. "New Insights into Microbial Degradation of Cyanobacterial Organic Matter Using a Fractionation Procedure," IJERPH, MDPI, vol. 19(12), pages 1-22, June.

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