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Publications
Publications (45)
The gradients of hydrological, hydrophysical, and hydrochemical conditions form the transition zones in river mouth areas. These areas are considered ecotones in the presence of the edge effect. Our research aimed to identify the main patterns in the structural organization of zooplankton communities in different types of river mouth areas in lowla...
The mouth areas of large rivers can serve as a good model of heterogeneity sites with a pronounced trophic gradient to assess the impact of the degree of eutrophication on different plankton communities. The aim of this research was to identify the possible response of the diversity indicators of phyto- and zooplankton communities to trophic gradie...
In 2020 and 2021, the city of Moscow, Russia, has experienced two historical rainfall events that had caused major flooding of small rivers. Based on long-term observation datasets from the surrounding weather stations, regional mesoscale COSMO-CLM climate model results, and a detailed hydrological and water quality monitoring data, we performed a...
This study aims to identify the main patterns of distribution and sources of pollutants in the Moskva River and their influence on river water quality under different levels of anthropogenic stress caused by the largest megacity in Europe – Moscow. For this study, we determined concentrations of 18 trace elements, nutrient elements and major ions,...
The paper presents data on the taxonomic diversity and functional groups of phytoplankton in the mouth areas of the left-bank Volga tributaries (Vetluga and Kerzhenets rivers).
The paper provides information on the species composition of phytoplankton in the mouth section of the Kazanka River at the end of the summer seasons of 2020-2021 and the quality of the waters of this section of the river, based on the results of saprobiological analysis, morphofunctional classification of freshwater phytoplankton and community ind...
In 2020 and 2021 the city of Moscow, Russia, has experienced two historical rainfall events that had caused major flooding of small rivers. Based on long-term observation datasets from the surrounding weather stations, regional mesoscale COSMO-CLM climate model results, and a detailed hydrological and water quality monitoring data collected in 2019...
The quality of lake ice is of uppermost importance for ice safety and under-ice ecology, but its temporal and spatial variability is largely unknown. Here we conducted a coordinated lake ice quality sampling campaign across the Northern Hemisphere during one of the warmest winters since 1880 and show that lake ice during 2020/2021 commonly consiste...
The spatial distribution of phytoplankton in the study area was characterized by a succession of the following codons, each representing at least 10% of the total biomass: W0, W1, S1 → W0, L0, S1 → S1, W1 → L0, S1 → S1, H1, Y → D, H1, Y → P, H1, Y, D. Phytoplankton were represented by morphofunctional groups characteristic of shallow, organic matte...
Longitudinal transformation of several hydrochemical parameters in the Moskva River was reviewed based on the data of extensive monitoring studies conducted in 2019-2020. Changes of the chemical composition and their seasonal variation were quantified in relation to the only remaining natural part of the river above the Mozhaysk Reservoir. We found...
As one of the most well-studied rivers of the Moscow megalopolis with diverse landscape and anthropogenic impact conditions on its watershed, the Setun River is a unique system suitable for complex urban geochemical research. Data of our ecological monitoring of 2019-2020 show elevated content of multiple elements, including nutrients and heavy met...
According to the results of 2019-2020 studies, we considered the features of hydrological, thermal, ice regime and water turbidity of the small urban Setun River, one of the largest right tributaries of the Moscow River, flowing in the western part of the city of Moscow. The specific discharge from the Setun watershed is 1.5-2 times and the turbidi...
The study was based, firstly, on the diverse data collected during field work in 2018 – 2020 in the eastern part of the Terek River delta and long-term hydrological monitoring data on the Roshydromet gauges. Secondly, on a profound comparative analysis of multi-temporal cartographic materials and multiple satellite images, laboratory analysis of wa...
The concentration of dissolved oxygen in aquatic systems helps to regulate biodiversity1,2, nutrient biogeochemistry3, greenhouse gas emissions4, and the quality of drinking water5. The long-term declines in dissolved oxygen concentrations in coastal and ocean waters have been linked to climate warming and human activity6,7, but little is known abo...
Sediments are an essential part of the aquatic environment that define its transformation and development. The construction of dams results in severe changes in sediment fluxes. This study aims to assess how the sediment load of the upper Moskva River is affected by the Mozhaysk Dam flow regulation and to estimate its dynamics over the years of the...
We present the first results of our research on day-night differences of crustacean zooplankton in Lake Glubokoe and Mozhaysk Reservoir. We found increases in pelagic crustacean zooplankton density and biomass at night in both lakes. Changes in quantity and species composition were more prominent and statistically significant in Mozhaysk Reservoir...
The paper deals with the seasonal dynamics of nutrients in the Mozhaysk reservoir in 2018/2019. The factors of seasonal variability of the vertical distribution of nitrogen, phosphorus and mineral silicon compounds are considered basing of monthly measurements. The regime of nutrients in the Mozhaysk reservoir and the ratio of their various forms i...
The first record of the North American alien rotifer Kellicottia bostoniensis (Rousselet, 1908) (Rotifera: Brachionidae) and the rare cladocera Eurycercus macracanthus Frey, 1973 (Crustacea: Cladocera) in the Moscow region. The research expands the concept of habitat diversity for these species and provides data on their quantitative development, b...
Modern methodological approaches were applied to analyze the zooplankton community spatial distribution (with the example of the middle river part of the Cheboksary Reservoir). Zoo-plankton communities were sampled in the middle river part of the Cheboksary Reservoir (from the city of Nizhny Novgorod to Vasilsursk town) in the summer low-water peri...
In 2019, we conducted an integrated study on the Moskva River and its tributaries during the low summer season with a focus on organic matter content (OM) assessment in river waters. The maximum OM content was measured at the river headwaters and related to natural sources. The Mozhaysk Reservoir regulation in the summer had the effect of increased...
An extensive study conducted during the dry summer of 2019 provided a detailed picture of the nutrient content dynamics along the Moskva River. Water sampling at 38 locations on the main river and at 17 of its tributaries revealed a manifold increase in phosphorus and nitrogen concentrations as the river crosses the Moscow metropolitan area, which...
The study presents the results of water quality evaluation in the Setun River watershed, located entirely within the limits of the Moscow City. Multiple point and non-point sources of pollution cause the nutrient and organic matter content of the river and its tributaries to significantly differ from the natural background. Maximum nitrogen and pho...
Biogenic flow is the determining factor of ecological well-being of water bodies. It depends on a number of factors, such as weather conditions, soil and vegetation cover, agricultural use of the catchment area. Its simulation is possible based on a complex water quality model with parameters distribution. In this paper, we show that the model calc...
Описан современный режим содержания органических веществ в озере Глубоком одноименного природного заказника Московской области и двух озерах Керженского природного заповедника Нижегородской области.
The modern regime of organic matter content in Glubokoye lake of the eponymous nature reserve in the Moscow region and two lakes of the Kerzhensky natu...
In this paper we present the results of water quality studies in the Kudma River – a small tributary of the Cheboksary reservoir (Middle Volga). The water quality of the river is formed under the influence of karst processes, widespread in its catchment area, as well as heavily polluted wastewater discharge from municipal sewer systems without nutr...
In this paper we present the results of field observations carried out at Lake Glubokoe (Moscow Region) in 2017–2019. Basic characteristics of the vertical distribution of main nutrient elements (phosphorus, nitrogen, and silicon) and organic matter (COD and chlorophyll-a) content are shown, along with their seasonal ranges. Due to the lack of surf...
On the basis of detailed observations of 1984, 2012 and 2016 we estimated the accumulation of reactive phosphorus in the Mozhaysk reservoir during the spring flood. The results of this assessment depend on the completeness and origin of the used data: the absence of discharge gauging stations on the tributaries of the reservoir introduces an error...
The development and deployment of new operational runoff forecasting systems are a strong focus of the scientific community due to the crucial importance of reliable and timely runoff predictions for early warnings of floods and flashfloods for local businesses and communities. OpenForecast, the first operational runoff forecasting system in Russia...
Одномерная модель Mylake, разработанная норвежским институтом водных исследований NIVA, применена для исследования термического режима малых пойменных озер Керженского природного заповедника. Калибровка и верификация модели показали хорошее качество воспроизведения профилей температуры обоих озер, различающихся по морфометрии, для различных фаз тер...
We examine the different approaches in assessing the water quality of water bodies located within the territories with a significant human-induced impact. The hydrological region of Norilsk was used as a test site. The data used in the analysis characterize the period between 2001 and 2003; however, they are still relevant because of a high level o...
This study aims to assess the trophic state of a small lake in modern climatic conditions using a one-dimensional model called MyLake, developed at the Norwegian Institute for Water Research. This temperate Lake Glubokoe, situated in the western part of Moscow region, Russia, is chosen as the study object. It is a small but deep dimictic lake, clas...
This paper presents the results study of nutrient elements in the Mozhaysk reservoir in summer 2018. Represented spreading silicon, nitrogen, and phosphorus in the water column are heterogeneous and related to the biogeochemical processes of its consummation. Also, it connected with the genetic composition of the exiting water masses. The same note...
Most of the lakes in European Russia are significantly affected by pollution. In Moscow Region, only a handful of lakes remain in their natural state, and their number is constantly further decreasing. In those circumstances, it is important to understand the consequences of increasing pressure on aquatic ecosystems, particularly nutrient loading....
The annual regimes of estimated rates of oxygen and carbon dioxide exchange between water surface and the atmosphere was compared for two water bodies with different sizes and hydroecological conditions: the deep oligotrophic Lake Baikal and the small mesotrophic–eutrophic Mozhaisk Reservoir with water exchange rate 150 times greater than that of B...
This chapter describes the main features that characterize the annual variations in the content of dissolved organic matter (DOM) for three reservoirs of different types: the Ivankovo Reservoir and the Ucha Reservoir on the Volga River and the Mozhaysk reservoir on the Moskva River. These three reservoirs belong to the water supply system of Moscow...
In years 2012 and 2016–2017 detailed hydrochemical field studies were set on tributaries of Mozhaysk and Ruza reservoirs to study current regime of organic matter (OM) inflow to Moskva river water supply system and consider the possibility of its parametrization.
Increased frequency water sampling was performed during 2012 and 2016 on three major t...
Projects
Projects (4)
The project aims to study eutrophication processes in small lake ecosystems under a changing climate.
The main goal is to determine the level of climate change impact on algal blooms intensification in response to anthropogenic pollution or its deficiency using methods of mathematical modelling. Archived data, field studies and model calculations will be used to quantify the impact of climatic factor on phytoplankton growth in ecosystems of Lake Glubokoe and lakes of the Kerzhenets Biosphere Reserve varying in trophic state and facing very little anthropogenic pressure. The expected results can serve as a basis for effective decision management in long-term actions for lake restoration projects.
