Abstract

The zooplankton of the floodplain reservoirs of the Middle Ob, located at various distances from the main channel of the river, has been studied. It is shown that, in floodplain reservoirs, the development of the summer zooplankton complex begins simultaneously with the passage of the flood; in the summer months, the greatest species diversity and the highest biomass are noted in them. The more often a reservoir is filled with high waters, the higher the species diversity and abundance of zooplankton in it. Factors have been identified that statistically significantly determine the development of zooplankton in floodplain reservoirs: frequency of flooding, water temperature, content of organic substances, and (for a number of taxa) gas regime. It is confirmed that the zooplankton of floodplain reservoirs differs significantly from the communities of the mother river and from the lakes of the terrace above the floodplain in significant faunal diversity, increased species richness, and specific species structure.

中文翻译：

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中鄂毕河漫滩水体浮游动物群落结构的特殊性

摘要

对距河流主河道不同距离的中鄂毕河漫滩水库的浮游动物进行了研究。结果表明，在漫滩水库中，夏季浮游动物群的发育与洪水的通过同时开始；在夏季，它们的物种多样性和生物量最高。水库充满高水位的次数越多，其中浮游动物的物种多样性和丰度就越高。已经确定了在统计上显着决定洪泛区水库浮游动物发育的因素：洪水频率、水温、有机物质含量和（对于许多类群）气体状况。已证实，漫滩水库的浮游动物与母河群落和漫滩上方阶地湖泊的群落在动物多样性显着、物种丰富度增加和特定的物种结构方面存在显着差异。