Abstract

A computer model of the sockeye salmon (Onchorhynchus nerka) population from Dal'neye Lake (Kamchatka) based on the results of long-term research was developed. As opposed to an earlier published model [4], the stochastic approach and individual-based method were used in the present model. The application of such techniques in the model has enabled study of the dynamics of the genetic structure of the population under the effect of varying environments, both in the sea and in the fresh-water period of the sockeye's life, and discovery of patterns of transition from the cyclic fluctuation mode to the mode of chaotic change of number.

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