Zinchenko T.D., Tarasova N.G., Misyuk A.V., Morov V.P. Assessment of the Ecological State of Urban Water Bodies (Togliatti, Samara Region) // Ecosystems: ecology and dynamics. No 2. 2026. P. 94-137. | Abstract | PDF | Reference
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Northern shore of Lake Plyazhnoe, April 2026 (photo by M.N. Stamenov)
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Southeastern shore of Lake Plyazhnoe in the 2010s (photo source – vk.com/tlt_01)
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Coastal and aquatic vegetation along the northern shore of Lake Plyazhnoe, July 1999 (photo by the authors)
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Coastal and aquatic vegetation in the shallow water at the northern end of Lake Plyazhnoe during low summer water, July 1999 (photo by the authors)
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Sampling at Lake Plyazhnoe, July 1999 (photo by the authors)
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View of the eastern shore of Lake Plyazhnoe, July 1999 (photo by the authors)
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View of the northern shore of Lake Plyazhnoe, July 1999 (photo by the authors)
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An isle at Lake Plyazhnoe, July 1999 (photo by the authors)
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View of the southeastern coast of Lake Plyazhnoe, July 1999 (photo by the authors)
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Equipment for sampling at Lake Plyazhnoe, May 2026 (photo by the authors)
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Equipment for sampling at Lake Plyazhnoe, May 2026 (photo by the authors)
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Equipment for sampling at Lake Plyazhnoe, May 2026 (photo by the authors)
In this article we present the results of our comprehensive assessment the ecological state of Lake Plyazhnoe (Tolyatti, Samara Region) that was based on a certification of the condition of the lake and its recreational resources. In our study, we included data from our natural-geographical researches, data on the Quaternary geology and hydrogeology of the water protection zone and catchment area of the lake, hydrographic-hydrological, hydrochemical, hydrobiological, landscape-ecological, and sanitary-bacteriological indicators, integrated ecological characteristics, as well as recommendations for the lake’s restoration and preservation. Using both the results of hydrochemical and hydrobiological studies and an assessment of changes in the abundance and biomass of the main taxonomic groups of Lake Plyazhnoe that were conducted through various methodological approaches, we studied the dynamics of abiotic and biotic indicators. From the acquired set of abiotic environmental factors, we selected the most significant ones that determine the ecological state of the lake. Additionally, we determined its ecological status. Our study aims to promptly forecast critical ecological situations and to warn of environmental hazards when assessing the condition of water bodies.
Keywords: ecological state, Lake Plyazhnoe, lake basin, abiotic and biotic indicators, taxonomic diversity, Samara Region.
Funding. This work was carried out by the researchers of the Hydrobiology Laboratory, as part of the state assignment of the Ministry of Education and Science of the Russian Federation for the Samara Federal Research Center of the Russian Academy of Sciences, topic No. FMRW-2025-0046 “The Impact that Changes in Natural and Climatic Conditions Have on the State of Biodiversity and the Functioning of Natural and Anthropogenically Modified Ecosystems”, and of the Ecosystem Research Laboratory, topic No. FMRW-2025-0047 “Comprehensive Assessment of Biological Resources State and Monitoring of Natural Ecosystems of the Volga Basin”.
DOI: 10.24412/2542-2006-2026-2-94-137
EDN: UKMUQF
