Dynamics of plankton biocenoses under water level fluctuations in steppe lakes

• Published in: IOP Conference Series: Earth and Environmental Science
• Main Authors: Yu Afonina, E, Tashlykova, N A
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: IOP Publishing 2022
• Subjects: Copepods; Siberia
• Online Access: http://dx.doi.org/10.1088/1755-1315/962/1/012002; https://iopscience.iop.org/article/10.1088/1755-1315/962/1/012002; https://iopscience.iop.org/article/10.1088/1755-1315/962/1/012002/pdf

Abstract Barun-Torey and Zun-Torey lakes are located in the arid steppe zone of the Central (Inner) Asia, Eastern Siberia, Russia. The Torey lakes are characterizes unstable hydrological regime. The water level variation is explained by the periodic filling and drying of the lakes due to cyclical climatic changes in humidity and temperature. We conducted our studies various water level phases of the climatic cycle: from high water level (1999, 2003) to drying out and the initial filling phase (2007, 2011, 2014, 2016, 2018, and 2020). The aim of this paper is to present long-term research results on changes in the plankton biocenoses of the Torey lakes during a climate cycle, the drying and initial filling of basins. Succession of plankton dominant species is in the direction of: diatoms+green algae and rotifers+crustaceans → green algae and crustaceans → green algae+cyanobacteria and crustaceans → no planktonic algae and invertebrates → cyanobacteria+diatoms+green algae and rotifers+cladocerans+copepods.