COMPUTER MODELING OF STURGEON POPULATION OF THE CASPIAN SEA WITH TWO TYPES OF APERIODIC OSCILLATIONS
Науковий журнал «Радіоелектроніка, інформатика, управління»
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COMPUTER MODELING OF STURGEON POPULATION OF THE CASPIAN SEA WITH TWO TYPES OF APERIODIC OSCILLATIONS |
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Perevaryukha, A. Yu.; St. Petersburg Institute for Informatics and Automation, St. Petersburg, Russia |
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computer model of biological processes, hybrid system, transient chaos, bifurcation, computational experiment |
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The article suggests the original computer model of the life cycle of sturgeon populations of the Caspian Sea, currently included in the «Red<br />Book» since 2010. In our model was implemented event-stage computing structure that includes continuous and discrete components of the<br />time. Features of the dynamics of the new model considered by us on the basis of the numerical solution of a finite sequence of the Cauchy<br />problem for the system of equations describing the subsided of number of individuals in generations. As a result, we obtained the functional<br />dependence, which be of interest to ichthyologists and which has two local extrema. The possibility of attraction of the trajectory to the two<br />attractors and the appearance an aperiodic transition regime is established. After the bifurcation of the disappearance of two nontrivial<br />stationary points arises an interval attractor. For this type of attractor on the Guckenheimer classification is observed the phenomenon of<br />boundary crisis that for the sturgeon populations is interpreted as an event that threat to their continued existence. |
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Zaporizhzhya National Technical University 2015-06-23 10:32:00 |
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application/pdf http://ric.zntu.edu.ua/article/view/45053 |
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Radio Electronics, Computer Science, Control; No 1 (2015): Radio Electronics, Computer Science, Control |
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ru |
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Copyright (c) 2015 A. Yu. Perevaryukha |
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