In 2003–2016, the composition and structure of macrozoobenthic communities of 49 lakes in three natural zones (taiga, forest-steppe, and steppe) of Western Siberia were investigated. The benthic fauna of the research lakes includes 160 species of nine classes of invertebrates. The trophic structure was characterized, and six major trophic groups were identified. A spatial analysis of the macrozoobenthos of the research lakes showed that from the forest-steppe to the dry steppe subzone, the species diversity decreases on a considerable scale and also dominant taxa of macrozoobenthos change with increasing water salinity. Especially in the forest-steppe and steppe zones, high water salinity is probably a limiting factor in the development of macrozoobenthic communities. In the taiga zone, however, water salinity seems not to have such significance; rather the degree of humification (shown as dark-colored water due to waterlogging) should be taken into account.

中文翻译：

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西伯利亚西部不同自然区和亚区中湖泊大型动物的组成和结构

在2003-2016年，调查了西西伯利亚三个自然区（针叶林，森林草原和草原）中49个湖泊的大型动物群落组成和结构。研究湖泊的底栖动物群包括160种9类无脊椎动物。对营养结构进行了表征，并确定了六个主要营养组。对研究湖泊的大型带状动物进行的空间分析表明，从森林草原到干草原分区，物种多样性在相当大的程度上下降，而且大型带状动物的分类群也随着水盐度的增加而变化。特别是在森林草原和草原地区，高盐度可能是大型动物群的发展的限制因素。然而，在针叶林地区，水盐度似乎没有那么重要。