We propose to study the ecosystem of the plankton community of the euphotic shelf zone as a complex system with five hierarchical levels. To construct the computer image of the ecosystem, we use the methods of object-oriented modeling. The vital activity of the organisms of each species inside a certain conventional volume of water (basic object of the model) is described in detail. As a result, the entire system simulates the interaction of species in the analyzed ecosystem. The system combines four groups of biological elements (phytoplankton, bacteria, protozoa, and zooplankton) and biomineral elements (organic and mineral phosphorus) and includes the equations for the temperature of water and dissolved oxygen. The proposed numerical model reproduces the observed spotted character of the space and time distributions of the density of aquatic life and its activity. The data of the performed numerical experiments reveal the correspondence between the integral quantitative parameters computed in the model and the average characteristics obtained under natural conditions.
Physical Oceanography – Springer Journals
Published: May 19, 2005
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