Abstract—The results of a study of the fish community and population in some Russian lakes (Lake Imandra on the Kola Peninsula, Lake Syamozero in Karelia, and Lake Vozhe in Vologda district) based on the phase-portrait method are presented. This method reveals stable-state zones for the fish community and the level of deviation from this level under the influence of various anthropogenic factors. The main factors are water pollution (Lake Imandra), eutrophication, and invasion by new species (Lake Syamozero), as well as the introduction of the sander (Lake Vozhe). The removal of negative factors leads to ecosystem stabilization.

中文翻译：

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基于动态相像的湖鱼群落平衡状态分析

摘要—基于相像法研究了一些俄罗斯湖泊（科拉半岛的伊曼德拉湖，卡累利阿的Syamozero湖和沃洛格达州的沃热湖）的鱼类群落和种群。该方法揭示了鱼类群落的稳态区以及在各种人为因素的影响下偏离该水平的水平。主要因素是水污染（伊曼德拉湖），富营养化和新物种入侵（Syamozero湖），以及引入沙磨机（Vozhe湖）。消极因素的消除导致生态系统的稳定。