Anthropogenic Changes in the Hydrochemical and Sanitary–Microbiological Characteristics of Water Quality in Southern Baikal Tributaries: Listvennichnyi Bay

Malnik, V. V.; Тимошкин, О. А.; Сутурин, А. Н.; Онищук, Н. А.; Sakirko, M. V.; Томберг, И. В.; Gorshkova, Anna; Zabanova, N. S.

doi:10.1134/s0097807819050154

Cited by 15 publications

(6 citation statements)

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“…The examined streams in the southwestern coast of the Southern Baikal (Krestovka, Bol’shaya Cheremshanka, Malaya Cheremshanka, and Kamenushka), flowing through Listvyanka Settl., experience the highest anthropogenic load [ 10 ] because of the large motor traffic. OP concentration in these rivers is generally higher than in other tributaries of Baikal ( Table 1 ).…”

Section: Resultsmentioning

confidence: 99%

“…At the beginning of the summer tourist season with an increase in motor traffic, an increase in OP concentrations takes place at the mouths of the Bol’shaya Cheremshanka and Malaya Cheremshanka rivers, the basins of which in their lower reaches contain many tourist camps, hotels with parking areas and with no treatment facilities. The inflow of domestic wastewaters into river water causes its pollution by nutrients, sulfates, pathogenic microflora, as well as OP [ 6 , 10 ].…”

Section: Resultsmentioning

confidence: 99%

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Oil Products in Lake Baikal and Its Tributaries

et al. 2022

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The results of studying present-day oil product concentrations in water of Baikal and its tributaries are given. The highest concentrations of oil products have been identified in the Southern Baikal. Seasonal and year-to-year dynamics of oil product concentrations in lake tributaries was determined. The level of water pollution by hydrocarbons was evaluated in accordance the sanitary-hygienic standards for water bodies used for fishery. The inflow of oil products from Baikal through the Angara River was calculated, and their approximate budget in the lake was compiled.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Oil Products in Lake Baikal and Its Tributaries

et al. 2022

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“…There were also high nutrient concentrations (P-PO 4 3 − = 0.097 mg L −1 , NH 4 + = 0.040 mg L −1 , NO 3 − = 14.98 mg L −1 , and NO 2 − = 0.133 mg L −1 ) in tributaries of the bay [ 22 ]. Moreover, sanitary and microbiological maximum indicators were as follows: TC (thermotolerant coliforms) = 1000 CFU (colony forming units), Enterococcus = 154 CFU, and Escherichia coli = 1020 CFU, which also testifies to the anthropogenic impact on the nearshore zone of Lake Baikal adjacent to the Listvyanka settlement [ 23 ].…”

Section: Site Descriptionmentioning

confidence: 99%

Response of Aquatic Organisms Communities to Global Climate Changes and Anthropogenic Impact: Evidence from Listvennichny Bay of Lake Baikal

Кравцова

Vorobyeva

Naumova

et al. 2021

Biology

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Recent studies have revealed how the freshwater biota of Lake Baikal responds to climate change and anthropogenic impacts. We studied phyto- and zooplankton, as well as phyto- and zoobenthos, in the open coastal waters of the southern basin of the lake and of Listvennichny Bay. A total of 180 aquatic organism taxa were recorded. The response of the Baikal ecosystem to climate change can be traced by changes in the species composition of planktonic communities of the lake’s open coasts in summer. The key species were thermophilic the Anabaena lemmermannii P. Richt. (Fij = +0.7) blue-green algae, the Asplanchna priodonta Gosse (Fij = +0.6) rotifers in 2016, the Rhodomonas pusilla (Bachm.) Javorn. (Fij = +0.5) cold-loving algae, and the Cyclops kolensis Lilljeborg (Fij = +0.9) copepods in the past century. The proportion of Chlorophyta decreased from 63% to 17%; the Cyanophyta increased from 3% to 11% in the total biomass of phytoplankton; and the proportion of Cladocera and Rotifera increased to 26% and 11% in the biomass of zooplankton, respectively. Human activity makes an additional contribution to the eutrophication of coastal waters. The Dinobryon species, the cosmopolitan A. formosa and F. radians, dominated phytoplankton, and filamentous algae, Spirogyra, dominated at the bottom in the area with anthropogenic impact. The trophic level was higher than at the unaffected background site: the saprobity index varied from 1.45 to 2.17; the ratio of eutrophic species to oligotrophic species ranged from 1:2 to 3:1, and the ratio of mesosaprobiont biomass to endemics biomass ranged from 2:1 to 7:1. Currently, the boundaries of eutrophication zones of shallow waters in Lake Baikal are expanding, and its coastal zone has acquired features typical of freshwater bodies of the eutrophic type.

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“…Many natural, anthropogenic and technogenic factors affect the ecological balance of the lake: tourism, wildfires, climate change, etc. In recent years, some researchers have indicated characteristic signs of ecological crisis in the coastal zone of Lake Baikal [12]. The crisis is characterised by the massive growth in green filamentous Spirogyra algae and mass disease and death of endemic sponges Lubomirskia baicalensis (Pallas, 1771) [13].…”

Section: Introductionmentioning

confidence: 99%

Environmental Monitoring of the Littoral Zone of Lake Baikal Using a Network of Automatic Hydro-Meteorological Stations: Development and Trial Run

Макаров

Aslamov

Gnatovsky

2021

Sensors

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An automatic hydro-meteorological station (AHMS) was designed to monitor the littoral zone of Lake Baikal in areas with high anthropogenic pressure. The developed AHMS was installed near the Bolshiye Koty settlement (southern basin). This AHMS is the first experience focused on obtaining the necessary competencies for the development of a monitoring network of the Baikal natural territory. To increase the flexibility of adjustment and repeatability, we developed AHMS as a low-cost modular system. AHMS is equipped with a weather station and sensors measuring water temperature, pH, dissolved oxygen, redox potential, conductivity, chlorophyll-a, and turbidity. This article describes the main AHMS functions (hardware and software) and measures taken to ensure data quality control. We present the results of the first two periods of its operation. The data acquired during this periods have demonstrated that, to obtain accurate measurements and to detect and correct errors that were mainly due to biofouling of the sensors and calibration bias, a correlation between AHMS and laboratory studies is necessary for parameters such as pH and chlorophyll-a. The gained experience should become the basis for the further development of the monitoring network of the Baikal natural territory.

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Anthropogenic Changes in the Hydrochemical and Sanitary–Microbiological Characteristics of Water Quality in Southern Baikal Tributaries: Listvennichnyi Bay

Cited by 15 publications

References 5 publications

Oil Products in Lake Baikal and Its Tributaries

Oil Products in Lake Baikal and Its Tributaries

Response of Aquatic Organisms Communities to Global Climate Changes and Anthropogenic Impact: Evidence from Listvennichny Bay of Lake Baikal

Environmental Monitoring of the Littoral Zone of Lake Baikal Using a Network of Automatic Hydro-Meteorological Stations: Development and Trial Run

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