Modern Structure and Functional State of Bacterioplankton of Lake Pleshcheyevo, Russia

A. V. Romanenko*

Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences, Borok, Nekouzskii raion, Yaroslavl oblast, Russia

Correspondence to: *e-mail: roma@ibiw.yaroslavl.ru

Received 15 November, 2022

Abstract—The spatial and seasonal distribution of heterotrophic bacterioplankton has been studied in Lake Pleshcheyevo. Over the past 30 years, the abundance of microorganisms has increased threefold. The maximum values have been recorded at littoral stations. The main part of bacterial production is also produced there. Trophic levels have increased, but the ecosystem of the lake withstands the increased load.

Keywords: heterotrophic bacterioplankton, seasonal dynamics, specific reproduction rate, specific grazing rate, production, lake

DOI: 10.1134/S1995082923020177