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Plankton Biocenoses of the Mountainous Shebety Lake (Zabaikalskii Krai, Russia)

机译:山区Shebety湖的浮游生物调查(俄罗斯扎拜卡尔斯基边疆区)

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摘要

Studies of phyto- and zooplankton were performed in summer 2002 and 2016 in the mountain Shebety Lake (Zabaikalskii krai, Russia). According to the hydrochemical composition, the lake waters belong to the hydrocarbonate-calcium type with a total mineralization of 30 mg/L. The littoral plankton biocenosis is characterized by higher species diversity and quantitative parameters in comparison with the pelagic plankton biocenosis. According to the principal component analysis, the hydrochemical composition of lake waters (pH, nutrient, and organic matter concentrations) is the main abiotic factor influencing the structural organization of the plankton community in the pelagic zone; in the littoral zone, these factors are the chemical features of the waters (pH, nutrient content, and cationic composition) and hydrophysical parameters (depth and water temperature). It was found that a combination of abiotic and biotic factors causes a different qualitative distribution of aquatic organisms in different zones of the lake. In the coastal zone, there is a great integration of the community; in the pelagic zone, the community exhibits a multicomponent nature.
机译:在2002年夏季和2016年夏季在Shebety湖(俄罗斯Zabaikalskii克拉伊)山中进行了浮游植物和浮游动物的研究。根据水化学成分,湖水属于碳酸盐钙类型,总矿化度为30 mg / L。与远洋浮游生物的生物群落相比,沿海浮游生物的生物群落具有较高的物种多样性和定量参数。根据主成分分析,湖水的水化学成分(pH,营养和有机物浓度)是影响中上层浮游生物群落结构的主要非生物因素。在沿海地区,这些因素是水的化学特征(pH,营养成分和阳离子组成)和水物理参数(深度和水温)。人们发现,非生物和生物因素的结合会导致湖泊不同区域水生生物的定性分布不同。在沿海地区,社区有很大的融合。在中上层带,群落表现出多组分的性质。

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