Management of the coastal-sea-zone-ecosystem model |
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| Authors: | E M Igumnova S M Solodova I E Timchenko |
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| Institution: | (1) Marine Hydrophysical Institute, Ukrainian Academy of Sciences, Sevastopol, Ukraine |
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| Abstract: | We present a model of the processes of development in the ecosystem of the coastal zone of the sea constructed by the method
of adaptive balance of causes (ABC-method). The model contains nine variables (phyto- and zooplankton, fish larvae, fishes, oxygen, carbon dioxide, salinity,
biogenic elements, and detritus) affected by the solar radiation, surface wind, sea temperature, and river discharge. The
equations of the model contain control agents governing the dependences of the elements of the food chain on the vitally important
resources and environmental conditions. The scenarios of the processes of development are constructed for the simulated annual
courses of external actions. The possibility of management of fish resources by regulating the flows of biogenic elements
and detritus with river discharge is discussed. A mechanism of management based on the monitoring of the concentration of
dissolved oxygen in seawater is proposed. The numerical experiments show that the ABC-model of the processes of development in the ecosystem of the coastal zone of the sea makes it possible to simulate the scenarios
of regulation of the flows of biogenic elements and detritus into the sea with an aim of preservation of of fish resources.
Translated from Morskoi Gidrofizicheskii Zhurnal, No. 1, pp. 36–49, January–February, 2009. |
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