Abstract

The results of long-term determinations of the abundance, biomass, and production of heterotrophic bacterioplankton in the eutrophic Gorky Reservoir (Middle Volga) are discussed. The mean values of the parameters increased 1.7–1.9 times in 2015–2016 when compared to 1991–1999. During the entire period of studies, the maximum values were recorded in the abnormally hot summer of 2010, when the temperature of the surface water reached 33°C. Apparently, an increase in the abundance and production and proportion of aggregated bacterioplankton is associated with an increase in water temperature and primary production, eutrophication, and contamination of the reservoir.

中文翻译：

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大型富营养化水库中异养细菌性浮游生物的长期动态

摘要

讨论了长期测定富营养化高尔基水库（中伏尔加河）中异养浮游细菌的丰度，生物量和产量的结果。与1991-1999年相比，2015-2016年参数的平均值增加了1.7-1.9倍。在整个研究过程中，最大值记录在2010年异常炎热的夏季，当时地表水温度达到33°C。显然，浮游细菌的丰度和产量以及比例的增加与水温和初级产量，富营养化以及水库污染的增加有关。