Functioning of the White Sea Ecosystem: Studying the Transformations of Organogenic Substances Using a Mathematical Model |
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| Authors: | Leonov A V Filatov N N Zdorovennov R E Zdorovennova G E |
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| Institution: | (1) Institute of Oceanology, Russian Academy of Sciences, Nakhimovskii prosp. 36, Moscow, 117851, Russia;(2) Institute of Water Problems of the North, Karelian Scientific Center, Russian Academy of Sciences, prosp, A. Nevskogo 50, Petrozavodsk, 188030, Russia |
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| Abstract: | Long-term observational data on hydrology, hydrochemistry, and hydrobiology are generalized and used for systems analysis of the biohydrochemical transformation processes of organic and biogenic substances in a marine environment. An ecological model with the systematized data is used to assess the annual dynamics of concentrations of organic and mineral N, P, and Si compounds and dissolved organic C and O2 in eight water areas within the White Sea at specified conditions of water mass transport, river runoff, and water exchange with the Barents Sea. Variations in the biomasses of the major transformers of organic and biogenic substances (heterotrophic bacteria, phyto- and zooplankton, and microphytes) and their biological production were also evaluated. These characteristics serve as indicators of the state of the water environment, the presence of nutrients in it, and their import from outside. |
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