Biodiversity and Bio-Resource Capacity of Marine Environment in the Adaptive Model of the Ecological-Economic System Coast-Sea

I. E. Timchenko✉, E. M. Igumnova

Marine Hydrophysical Institute, Russian Academy of Sciences, Sevastopol, Russian Federation

✉ e-mail: timchenko.syst.analysis@mhi-ras.ru

Abstract

The adaptive model of managing consumption of marine bio-resources by the coastal economic subsystem which is a part of the ecological-economic system coast-sea is constructed. The marine part of the model is represented by the adaptive version of the plankton dynamics and nitrogen cycle model in which the chlorophyll a concentration observations are assimilated. Management of the consumed bio-resources volume is based on tracing the deviations of the marine biodiversity index from its average (undisturbed) value which is represented as an estimate of the stationary value of the environment bio-resource capacity. The bio-resource capacity integral model controlling the balance between the rates of consumption and reproduction of marine bio-resources is proposed. The model equations are constructed by the method of adaptive balance of influences; at that the influence coefficients are expressed through the normalized ratios of the variables’ mean values. To preserve the marine environment biodiversity, the right-hand sides of the equations contain the agents for managing the scenarios of ecological-economic processes. These agents ensure imposing fines for sea pollution caused by the coastal economic subsystem. Represented are the results of computational experiments confirming economic expediency of introducing new technologies in the coastal subsystem which, in their turn, contribute to economic efficiency of bio-resource consumption and preserve the marine environment bio-resource capacity. It is shown that the marine environment bio-resource capacity is an integral value of the biodiversity index determined for a certain time interval. Thus, in order to use rationally bio-resources of the sea coastal zone, it is necessary to control both biodiversity and bio-resource capacity of the marine environment. These two indices indicating ecological state of the sea coastal zone serve the criteria for managing the integrated ecological-economic system coast-sea which are used to derive economic benefit from consumption of marine bio-resources provided that the marine environment quality is preserved.

Keywords

adaptive model, marine ecosystem, biodiversity and bio-resource capacity of marine environment, fines for pollution, management agents, scenarios of environmental and economic processes

Original russian text

Original Russian Text © I. E. Timchenko, E. M. Igumnova, 2018, published in MORSKOY GIDROFIZICHESKIY ZHURNAL, Vol. 34, Iss. 3, pp. 223–236 (2018)

For citation

Timchenko, I.E. and Igumnova, E.M., 2018. Biodiversity and bio-resource capacity of marine environment in the adaptive model of the ecological-economic system coast-sea. Physical Oceanography, 25(3), pp. 207-219. doi: 10.22449/1573-160X-2018-3-207-219

DOI

10.22449/1573-160X-2018-3-207-219

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