Journal articles: 'Natural water bodies'

1

Izaguirre, Irina, and Juan F. Saad. "Phytoplankton from natural water bodies of the Patagonian Plateau." Advances in Limnology 65 (July 7, 2014): 309–19. http://dx.doi.org/10.1127/1612-166x/2014/0065-0048.

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Izmailova, A. V., and N. Yu Korneenkova. "Water Resources of Natural and Artificial Water Bodies in Europe." Water Resources 49, no. 1 (February 2022): 1–9. http://dx.doi.org/10.1134/s0097807822010079.

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Launiainen, Jouko, and Bin Cheng. "Modelling of ice thermodynamics in natural water bodies." Cold Regions Science and Technology 27, no. 3 (June 1998): 153–78. http://dx.doi.org/10.1016/s0165-232x(98)00009-3.

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Wang, Yong, Shanlong Lu, Feng Zi, Hailong Tang, Mingyang Li, Xinru Li, Chun Fang, and Harrison Odion Ikhumhen. "Artificial and Natural Water Bodies Change in China, 2000–2020." Water 14, no. 11 (May 30, 2022): 1756. http://dx.doi.org/10.3390/w14111756.

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Artificial and natural water bodies, such as reservoirs, ponds, rivers and lakes, are important components of water-related ecosystems; they are also important indicators of the impact of human activities and climate change on surface water resources. However, due to the global and regional lack of artificial and natural water bodies data sets, understanding of the changes in water-related ecosystems under the dual impact of human activities and climate change is limited and scientific and effective protection and restoration actions are restricted. In this paper, artificial and natural water bodies data sets for China are developed for the years 2000, 2005, 2010, 2015 and 2020 based on satellite remote sensing surface water and artificial water body location sample data sets. The characteristics and causes of the temporal and spatial distributions of the artificial and natural water bodies are also analyzed. The results revealed that the area of artificial and natural water bodies in China shows an overall increasing trend, with obvious differences in spatial distribution during the last 20 years, and that the fluctuation range of artificial water bodies is smaller than that of natural water bodies. This research is critical for understanding the composition and long-term changes in China’s surface water system and for supporting and formulating scientific and rational strategies for water-related ecosystem protection and restoration.

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Gaikwad, Ranjitsing Pandurang, and Sagar Gavande. "Major Factors Contributing Growth of Water Hyacinth in Natural Water Bodies." International Journal of Engineering Research 6, no. 6 (2017): 304. http://dx.doi.org/10.5958/2319-6890.2017.00024.1.

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Prokopiev, S. I., T. E. Ovchinnikova, and O. F. Vasiliev. "Thermodynamic characteristics of water in natural water bodies with a high mineralization." Izvestiya, Atmospheric and Oceanic Physics 46, no. 2 (April 2010): 256–60. http://dx.doi.org/10.1134/s0001433810020143.

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Branche, Christine M., Joseph E. Sniezek, Richard W. Sattin, and Irene R. Mirkin. "Water recreation-related spinal injuries: Risk factors in natural bodies of water." Accident Analysis & Prevention 23, no. 1 (February 1991): 13–17. http://dx.doi.org/10.1016/0001-4575(91)90030-9.

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Solarski, Maksymilian, Alicja Pradela, and Mariusz Rzętała. "Natural and anthropogenic influences on ice formation on various water bodies of the Silesian Upland (southern Poland)." Limnological Review 11, no. 1 (January 1, 2011): 33–44. http://dx.doi.org/10.2478/v10194-011-0025-1.

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Natural and anthropogenic influences on ice formation on various water bodies of the Silesian Upland (southern Poland)The aim of the study was to identify patterns of ice-related phenomena on 39 selected anthropogenic water bodies in the Silesian Upland in southern Poland. The core research was conducted in the winter season of 2009/2010, between December and March. Field measurements and observations were conducted every two days during the freezing and thawing phases and every four days at the time of continuous ice cover. Data were interpolated to cover days without observations. Differences in the ice cover phenology on these water bodies were caused by natural conditions (morphometric and hydro-meteorological) and human activity (thermal pollution). Two principal groups of anthropogenic water bodies were identified in terms of the ice phenomena: lakes and ponds with a natural or quasi-natural pattern of ice phenomena and water bodies featuring various degrees of human impact. The thickness of the ice-cover was found to vary, which was a source of great danger to the users of the water bodies in the winter season.

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Zikirova, Komila Ya, and Ugloy B. Tursunboeva. "THE ROLE OF GAT TECHNOLOGIES IN THE STUDY OF SURFACE WATER BODIES IN JIZZAKH REGION." Journal of Geography and Natural Resources 02, no. 01 (January 1, 2022): 121–29. http://dx.doi.org/10.37547/supsci-jgnr-02-01-17.

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Zhang, Hongbo, Yan Li, Jianjun Chen, Quanjiao Chen, and Ze Chen. "Perpetuation of H5N1 and H9N2 avian influenza viruses in natural water bodies." Journal of General Virology 95, no. 7 (July 1, 2014): 1430–35. http://dx.doi.org/10.1099/vir.0.063438-0.

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Water bodies are an important route for the spread and transmission of avian influenza virus (AIV). The determining factor for an AIV to transmit through diffusion in water is the term of viability of the virus in the water body. To better understand the perpetuation of AIV in natural water bodies, and thus the risks of AIV spread and transmission via such bodies, we systematically studied the inactivation dynamics of two AIV strains (H5N1 and H9N2) at different temperatures in water bodies of important migratory bird habitats within China (Dongting Lake, Poyang Lake, the Hubei segment of the Yangtze River and Qinghai Lake). We also studied the impact of water-borne micro-organisms on the perpetuation of AIV. Our findings indicated that water is very likely an important route for the epidemic spread of AIV, especially during the autumn and winter seasons. In addition, water-borne micro-organisms might antagonize the persistence of AIV.

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Cunha, Cynara de L. da N., and Paulo C. C. Rosman. "A semi-implicit finite element model for natural water bodies." Water Research 39, no. 10 (May 2005): 2034–47. http://dx.doi.org/10.1016/j.watres.2005.03.026.

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Sarma, S. S. S., and Manuel Elías-Gutiérrez. "Rotifers (Rotifera) from four natural water bodies of central Mexico." Limnologica 29, no. 4 (November 1999): 475–83. http://dx.doi.org/10.1016/s0075-9511(99)80054-1.

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13

Suzdaleva, Antonina, Anna Hirsch, and Maria Kuchkina. "Ecological engineering of small urban water bodies." E3S Web of Conferences 157 (2020): 02026. http://dx.doi.org/10.1051/e3sconf/202015702026.

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The ecological and sanitary epidemiological condition of small urban water bodies is an important factor in ensuring safety in urbanized areas of the technosphere. All modern small urban water bodies are naturaltechnical systems that can be uncontrollable or controllable. In managed natural-technical systems, favorable environmental conditions are formed as a result of the operation of special engineering devices and systems called ecological regulators. Their creation and ensuring sustainable existence are the main goal of ecological engineering of small urban water bodiesThe choice of a strategy for the environmental engineering of water bodies should be determined on the basis of a prognostic assessment of the possibility of improving or maintaining its positive functions: videoecological, recreational, biotopical potential, and also cultural, historical or religious significance. In addition, it is necessary to take into account public opinion, which can be changed by disseminating positive information about the goals of the proposed activity (active ecological image-making). The issue of organizing long-term technical maintenance of ecological regulators and monitoring of natural-technical systems of water bodies is being considered. The paper provides a classification of small urban water bodies and a generalized scheme of their ecological engineering. The necessity of an interdisciplinary approach to decision making and the development of syncretic thinking in this area is substantiated.

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Deng, Hong, and Junjie Long. "Research on Mountain City Mountain and Water Repair Strategy." E3S Web of Conferences 261 (2021): 04039. http://dx.doi.org/10.1051/e3sconf/202126104039.

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The natural ecological environment is not only the basic condition of our human existence, but also the foundation of urban construction. The natural ecological environment restricts the development of cities. However, the mountains and water bodies of mountainous cities have been damaged to varying degrees in the past urban construction. Through the analysis of the current water bodies and mountains in mountainous cities, this paper puts forward the strategies for the restoration of mountains and water bodies, so as to realize the overall restoration of urban ecology.

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Atamanova, O. V., E. I. Tikhomirova, V. A. Burahta, L. I. Baytlesova, and A. К. Dzhubayalieva. "Hydrochemical water quality monitoring of natural water bodies of the Ural river basin." Povolzhskiy Journal of Ecology, no. 3 (November 23, 2021): 358–68. http://dx.doi.org/10.35885/1684-7318-2021-3-358-368.

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A general characteristic of the river basin of the interstate Ural river and information on the economic use of the Ural river in its upper, middle and lower reaches are given. Information on the hydrology of the liquid and solid flow of the Ural river is presented. Hydrochemical monitoring of water bodies of the Ural river basin was conducted during the flood period, during the summer low water period and during the autumn low water period of 2017–2018. The hydrochemical monitoring of the water quality in natural reservoirs of the Ural drainage basin made it possible to identify an excess of the MPCs for residential use and for fishery of heavy metal ions in the water of the examined reservoirs. An excess of cadmium ions by (1.2–1.4) MPC for residential use was found in the Ilek river during its low water as well as in the Ural river near the border with the Russian Federation during the flood period in the amount of (3.1–3.4) MPC for residential use and near the village Zharsuat in the period of summer and autumn low water in the amount of (1.5–2.6) MAC for residential use. An excessive concentration of lead ions by (1.2–1.4) of MPC for fresh water fisheries in the middle and lower reaches of the Ural river at different times of the year was found. Excessive concentrations of ions of different heavy metals in comparison with their MPC for fresh water fisheries were found in all water bodies in different periods of the year. The greatest excess of zinc ions in comparison with its MPC for fresh water fisheries was observed during low water.

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Zaslonovsky, V., N. Sharapov, and M. Bosov. "On methodological approaches to the improvement of surface water bodies and target indicators of the natural waters’ quality." Transbaikal State University Journal 27, no. 1 (2021): 6–14. http://dx.doi.org/10.21209/2227-9245-2021-27-1-6-14.

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The paper is devoted to the development of proposals concerning the improvement of surface water bodies and the appointment of target indicators of the natural waters’ quality. The paper considers a variety of problems of preserving, restoring and improving the quality of natural surface waters: from regional features of the formation of natural water composition, to differences in the requirements for the quality of water consumed. The object of the study is the qualitative indicators of the waters of natural water bodies, and the subject of the study is the methodological approaches to the normalization of these indicators. The purpose of the work is to identify the main shortcomings in the domestic system of rationing the quality of natural waters, and to form appropriate proposals. For this purpose, the following tasks were set and solved: to review the methodological approaches to assessing and rationing the quality of natural waters used in some foreign countries and in the Russian Federation, to identify the main causes and shortcomings; to make proposals for improving the current system of water quality rationing. The result of this work is the conclusions about the lack of impact of the strategy operating in Russia in the development of schemes of complex use and protection of water objects, standards of permissible impact on water bodies, the appointment of permissible discharge limits in terms of maintaining and improving the water quality of natural water bodies. The reasons that led to this are indicated. The necessity of taking into account, in addition to the physical and chemical composition, also hydrobiological parameters is shown. It is concluded that instead of fisheries management standards, environmental standards should serve as the basis for target indicators of water quality of natural water bodies, which determine the well-being of humans and the stable functioning of aquatic ecosystems, taking into account regional factors. Proposals were made to adjust the methodological approaches to the implementation of this strategy. According to the authors, these proposals will speed up the solution of the main objectives of the strategy – the ecological improvement of water bodies, the preservation of unique aquatic ecosystems and the environmentally safe development of territories that previously experienced relatively small anthropogenic impacts (Eastern Siberia and the Far East)

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Nwabunike, M. O., G. V. C. Igwe, and I. J. Ochokwu. "Comparative analysis of physico-chemical parameters of some river systems of Ebonyi State, Nigeria." Journal of Aquatic Sciences 34, no. 1 (August 18, 2020): 33–41. http://dx.doi.org/10.4314/jas.v34i1.5.

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The study comparatively analyzed the general physico-chemical parameters of five different water bodies to assess their suitability for fish production. Four water bodies (Enyigba, Mkpuma, Ameka and Ebonyi) close to quarry sites were selected while the fifth was a culture pond water which served as the control experiment. The water parameters: pH, temperature, dissolved oxygen (DO), free CO2 and transparency were examined using standard methods for 24 months. The results showed that the pattern of temperature variation in all the water bodies examined followed a similar trend with the lowest value observed between December and January. The pond water showed slightly varied pH levels compared to the natural water bodies. The DO contents of Ebonyi, Mkpuma and Enyigba were higher than those recorded from Ameke and pond. Relatively, lower concentrations of free CO2 were recorded in the pond water and Ebonyi river during the harmattan period (December to January) and below the detectable levels. The variation of Sechi disc depth was higher in Enyigba when compared with other water bodies all through the period of the experiment. The trend of transparency was the same in all the water bodies. Keywords: Physico-chemical parameters, natural water bodies, pond water, fish production, Ebonyi State

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SELEZNEV, Vladimir Anatol'evich, Alexandra Vasil'evna SELEZNEVA, and Ksenia Vladimirovna BESPALOVA. "NORMALIZATION OF BIOGENIC SUBSTANCES DISCHARGE INTO SURFACE WATER BODIES." Urban construction and architecture 4, no. 2 (June 15, 2014): 49–53. http://dx.doi.org/10.17673/vestnik.2014.02.9.

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The concept of ecological rationing of biogenic stresses on water objects is off ered. On an example of the Saratov water basin criteria of rationing considering natural-geographical and climatic features of formation of quality of a surface water are proposed.

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Heinloo, J. "Eddy-driven flows over varying bottom topography in natural water bodies." Proceedings of the Estonian Academy of Sciences. Physics. Mathematics 55, no. 4 (2006): 235. http://dx.doi.org/10.3176/phys.math.2006.4.04.

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Kopáček, Jiřı́, Kai-Uwe Ulrich, Josef Hejzlar, Jakub Borovec, and Evžen Stuchlı́k. "Natural inactivation of phosphorus by aluminum in atmospherically acidified water bodies." Water Research 35, no. 16 (November 2001): 3783–90. http://dx.doi.org/10.1016/s0043-1354(01)00112-9.

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Nima, Ciren, Øyvind Frette, Børge Hamre, Jakob J. Stamnes, Yi-Chun Chen, Kai Sørensen, Marit Norli, et al. "CDOM Absorption Properties of Natural Water Bodies along Extreme Environmental Gradients." Water 11, no. 10 (September 24, 2019): 1988. http://dx.doi.org/10.3390/w11101988.

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We present absorption properties of colored dissolved organic matter (CDOM) sampled in six different water bodies along extreme altitudinal, latitudinal, and trophic state gradients. Three sites are in Norway: the mesotrophic Lysefjord (LF), Samnangerfjord (SF), and Røst Coastal Water (RCW); two sites are in China: the oligotrophic Lake Namtso (LN) and the eutrophic Bohai Sea (BS); and one site is in Uganda: the eutrophic Lake Victoria (LV). The site locations ranged from equatorial to subarctic regions, and they included water types from oligotrophic to eutrophic and altitudes from 0 m to 4700 m. The mean CDOM absorption coefficients at 440 nm [ a CDOM ( 440 ) ] and 320 nm [ a CDOM ( 320 ) ] varied in the ranges 0.063–0.35 m − 1 and 0.34–2.28 m − 1 , respectively, with highest values in LV, Uganda and the lowest in the high-altitude LN, Tibet. The mean spectral slopes S 280 − 500 and S 350 − 500 were found to vary in the ranges of 0.017–0.032 nm − 1 and 0.013–0.015 nm − 1 , respectively. The highest mean value for S 280 − 500 as well as the lowest mean value for S 350 − 500 were found in LN. Scatter plots of S 280 − 500 versus a CDOM ( 440 ) and a CDOM ( 320 ) values ranges revealed a close connection between RCW, LF, and SF on one side, and BS and LV on the other side. CDOM seems to originate from terrestrial sources in LF, SF, BS, and LV, while RCW is characterized by autochthonous-oceanic CDOM, and LN by autochthonous CDOM. Photobleaching of CDOM is prominent in LN, demonstrated by absorption towards lower wavelengths in the UV spectrum. We conclude that high altitudes, implying high levels of UV radiation and oligotrophic water conditions are most important for making a significant change in CDOM absorption properties.

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Wijesundera, Chakra, and Zhiping Shen. "Mimicking natural oil bodies for stabilising oil-in-water food emulsions." Lipid Technology 26, no. 7 (July 2014): 151–53. http://dx.doi.org/10.1002/lite.201400036.

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Burr, Paul C., Jimmy L. Avery, Garrett M. Street, Bronson K. Strickland, and Brian S. Dorr. "Piscivorous Bird Use of Aquaculture and Natural Water Bodies in Mississippi." Journal of Wildlife Management 84, no. 8 (September 2020): 1560–69. http://dx.doi.org/10.1002/jwmg.21948.

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Nekrasova, L. P. "Monitoring of natural water pollution by fluorescence spectroscopy." Hygiene and sanitation 101, no. 5 (May 31, 2022): 578–82. http://dx.doi.org/10.47470/0016-9900-2022-101-5-578-582.

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Introduction. Environmental monitoring of the state of water bodies is an important component of environmental protection. A promising direction for assessing the quality of water bodies is to determine their generalized indicators. Fluorescence spectroscopy can serve as a source of important information about the state of water bodies and sources of their pollution. Purpose of the study - to assess the water pollution of the Moskva River and its tributaries using the fluorescence spectroscopy method. To reveal the influence of oil products on the fluorescence spectra of river water. Materials and methods. The object of the study was water from the Moskva River and its tributaries: Pakhra, Kotlovka, Setun. Water samples from the Moskva River were taken in different parts of the city, which are characterized by varying degrees of pollution. Water fluorescence spectra were measured with SM2203 spectrofluorimeter (ZAO Solar, Belarus), total organic and inorganic carbon, on a TOC-VCHP total carbon analyzer (Shimadzu, Japan). Results. The nature of the fluorescence spectra of the Moskva River and its tributaries in the absence of significant anthropogenic pollution are characterized by relative constancy. Bacterial pollution and pollution with aromatic compounds of anthropogenic origin, including oil products, leads to an increase in the fluorescence intensity in the short-wavelength part of the spectrum. The correlation coefficient between the optical density at a wavelength of 254 nm and the content of dissolved organic carbon (DOC) for the studied samples was 0.66, and between the fluorescence intensity at a wavelength of 400 nm and DOC was 0.74. Limitations. The method cannot be used for the quantitative determination of individual substances; it is intended for a semi-quantitative assessment of water pollution. Conclusion. Measurement of fluorescence spectra and total organic carbon makes it possible to give a general assessment of the contamination of a water body (which is especially important for a sample of unknown composition) and to choose the optimal scheme for its targeted analysis. High dissolved organic carbon (DOC) values and high fluorescence intensity at 320 nm are highly likely to indicate chemical contamination of water, while DOC values characteristic of a water body and high fluorescence intensity at 320 nm indicate bacterial contamination.

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Gusev, Evgeniy, Nikita Martynenko, and Hoan Tran. "Studies on Algae from the Order Synurales (Chrysophyceae) in Northern Vietnam." Diversity 13, no. 11 (November 21, 2021): 602. http://dx.doi.org/10.3390/d13110602.

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The present paper focuses on the flora of synuralean algae from four northern provinces in Vietnam: Bac Kan, Hanoi, Ninh Binh, and Thanh Hoa. Fifty-five water bodies were studied, including territories within national parks Ba Be, Ba Vi, Cuc Phuong, Ben En, and Trang An Wetland—The World Cultural and Natural Heritage and Van Long Wetland Nature Reserve. Samples were obtained from natural lakes and wetlands, artificial reservoirs and ponds, and small temporary water bodies. Electron microscopy allowed for the discovery of 39 taxa, 37 of which belonged to the genus Mallomonas and two to the genus Synura. Six taxa of the genus Mallomonas and two taxa from the genus Synura were not identified to the lower rank. Five taxa are reported for the first time in Vietnam. The most diverse flora was observed in natural protected water bodies. Eutrophic and hypereutrophic water bodies, which were prevalent in the study area, had a reduced number of selected species.

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Trysnyuk, Vasyl, Taras Trysnyuk, Anatolii Nikitin, Anatolii Kurylo, and Olga Demydenko. "Geomodels of space monitoring of water bodies." E3S Web of Conferences 280 (2021): 09016. http://dx.doi.org/10.1051/e3sconf/202128009016.

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Theme of the paper is the solution of flooding geomodels creation for Dniester river basin territory, which uses contact and remote measurements. Natural and anthropogenic factors causing groundwater level rising were analyzed for localization of flooded zones and forecasting of geometric characteristics. Geographic information systems for researched area include the spatial binding of the hydrological elements and observation points, digital model of relief preparation, basin allocation catchment, flooded areas modeling. Structural features include the size and shape of object, brightness disposal within the object, image texture, some others. Possibility of available remote sensing data use allows reducing temporal and economic cost for conducting additional ground measurements for possible flooded areas determining. These methods of geomodels creation are realized for the territory of Dniester Canyon, the hydrogeologic feature of which is connected to the Upper Cretaceous horizon and groundwater.

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Brysiewicz, Adam, Przemysław Czerniejewski, and Małgorzata Bonisławska. "Effect of Diverse Abiotic Conditions on the Structure and Biodiversity of Ichthyofauna in Small, Natural Water Bodies Located on Agricultural Lands." Water 12, no. 10 (September 24, 2020): 2674. http://dx.doi.org/10.3390/w12102674.

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Mid-field natural ponds promote regional biodiversity, providing alternative habitats for many valuable animal species. The study’s objective was to determine the most important abiotic factors, including hydrochemical and morphometric parameters, affecting fish occurrence in natural, small water bodies on agricultural lands. The studies were conducted in nine randomly selected water bodies located in Poland (the North European Plain). Eleven species of fish were recorded in the waterbodies, with the most abundant being cyprinids (mainly crucian carp). Canonical correspondence analysis (CCA) showed that an increase in oxygenation, temperature, amount of macrophytes, and K concentration and a decrease in the concentration of phosphates, electrical conductivity (EC), Mg, and Cl is associated with the most beneficial living conditions for the most frequently occurring species in the studied water bodies—crucian carp and tench. Aside from the hydrochemical parameters of water in the natural ponds, the number of fish correlates with the basin area and the pond area, maximum depth, area of the buffer zone surrounding the water bodies, and the number of macrophytes. This last factor also has a significant influence on the species’ abundance in the water bodies. Fish occurrences in mid-field ponds and common knowledge on their important role in the environment require taking steps to provide fish protection.

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Bixler, Robert D., and Gwynn Powell. "Sensitivity to Disgust and Perceptions of Natural Bodies of Water and Watercraft Activities." Psychological Reports 93, no. 1 (August 2003): 73–74. http://dx.doi.org/10.2466/pr0.2003.93.1.73.

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A written 7-item self-report scale on sensitivity to disgust and participation in watercraft activities was administered to 450 seasonal park employees. Correlations indicate that nonparticipation in seven different watercraft sports was weakly related with reactions of disgust to contact with natural bodies of water ( rpbis = -.12 to -.32, p <.01). Negative affective reactions to contact with natural bodies of water may contribute to panic reactions in watercraft accidents.

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Zobkov, Mikhail. "AUTOMATIC WATER OBJECTS CLASSIFICATION AND NATURAL WATER QUALITY ASSESSMENT." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 2 (August 3, 2015): 56. http://dx.doi.org/10.17770/etr2009vol2.1038.

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Assessment of water quality and classification of water object plays significant role in an environmental and ecology study. Water quality evaluation by hydrochemical parameters is fairly difficult and required a long period of time. Automatic expert system was created to solve this problem. Automatization of objects classification and quality assessment for humus zone based on Karelian water bodies research data are presented in this study. Automation algorithms of the surface water geochemical classification based on the principal chemical transactions was obtained during research. Classification based on implicit scaling data by classification parameter. Alkalinity, pH, huminity, Fecom and total phosphorous were chosen as the main classification parameters. For classification by alkalinity were used alkalinity and pH, for huminity classification were used coefficient of huminity – Hum? Color OD?C Mn and Fecom, for trophic state were used huminity class and total phosphorous concentration. The water objects distribution by huminity, alkalinity and trophic state was obtained and basic geochemical classes were picked out. Natural water quality was assessed as combination of geochemical classes. Results of research presented as maps and trends of geochemical classes and natural water quality distribution over the area of Republic of Karelia.

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Ferreira, Vânia, Rui Magalhães, Paula Teixeira, Paula Maria Lima Castro, and Cristina Sousa Coutinho Calheiros. "Occurrence of Fecal Bacteria and Zoonotic Pathogens in Different Water Bodies: Supporting Water Quality Management." Water 14, no. 5 (March 1, 2022): 780. http://dx.doi.org/10.3390/w14050780.

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Water contaminated with microbiological and chemical constituents can cause a variety of diseases. Water bodies may become contaminated by wild and domestic animal feces, agricultural runoff or sewage, and are often overlooked as a reservoir and source of human infection by pathogenic microorganisms. The objectives of this study were to evaluate the presence of the zoonotic pathogens, Salmonella spp. and Listeria monocytogenes, in various water bodies located in urban and rural areas in the north of Portugal. Water samples were collected from six sites, including natural and artificial ponds, in two different time periods. Several water quality physicochemical parameters, as well as fecal indicator bacteria, were evaluated. High levels of total coliforms (>1.78 log CFU/100 mL) were detected in all samples, and substantial numbers of Enterococcus (>2.32 log CFU/100 mL) were detected in two ponds located in a city park and in an urban garden. Escherichia coli counts ranged from undetectable to 2.76 log CFU/100 mL. Salmonella spp. was isolated from two sites, the city park and the natural pond, while L. monocytogenes was isolated from three sites: the city garden, the natural pond and the artificial pond, both in the rural area. These data show that artificial and natural ponds are a reservoir of fecal indicator bacteria and enteric and zoonotic pathogens. This may impact the potential risks of human infections by potential contaminants during recreational activities, being important for assessing the water quality for strategic management of these areas.

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Kochergina, O., and S. Onina. "Estimation of Buffer Capacity of Model Systems and Natural Waters by Experimental and Calculation Methods." Bulletin of Science and Practice 6, no. 12 (December 15, 2020): 68–72. http://dx.doi.org/10.33619/2414-2948/61/07.

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The aim of this work is to teach students to determine the stability of small lakes in relation to acidification processes by calculating the buffer capacity of water. A decrease in the pH of natural waters is caused by the influx of acid-forming oxides of sulfur and nitrogen into the atmosphere and water bodies. An increase in the acidity of water bodies has extremely negative consequences, contributes to the leaching of heavy metals, changes the ionic composition of water, and reduces the ability of natural water bodies to heal themselves. Low salinity waters of small lakes in the northern regions are especially vulnerable to acidification processes. The indicators of acid-neutralizing ability, the content of hydrocarbons, the value of the buffer capacity of natural waters are used as criteria for the stability of natural waters. To calculate the buffer capacity, the following indicators of the chemical composition of waters were used in this work: hydrogen index (pH), the content of organic (Corg) and mineral (Cmin) forms of carbon. Concentrations of conjugated forms of components of natural acid-base systems are calculated based on the concept of acid-base equilibrium in solutions of carbonic acid and humic acids.

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KIREYCHEVA, L. V., and L. V. KIREYCHEVA. "THE INFLUENCE OF AGRICULTURAL PRODUCTION ON POLLUTION OF WATER BODIES." Prirodoobustrojstvo, no. 5 (2020): 18–27. http://dx.doi.org/10.26897/1997-6011-2020-5-18-27.

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Ignatenko, Marina E., Tatyana N. Yatsenko-Stepanova, and Olga G. Kalmykova. "Structural and functional characteristics of algal flora in water bodies of the natural monuments in Orenburg forest steppe Trans Volga region (Russia)." BIO Web of Conferences 24 (2020): 00027. http://dx.doi.org/10.1051/bioconf/20202400027.

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The algal flora of 7 water bodies of Orenburg forest-steppe Trans Volga region protected areas was studied. 193 species and intraspecific taxa of algae belonging to 7 phyla, 12 classes, 30 orders, 57 families and 109 genera were identified. According to the results of a saprobiological analysis studied water bodies and streams are characterized as xeno-, oligo-, and β-mesosaprobic, grades 1-3 of quality, from extremely pure to satisfactory purity. In some water bodies (pond on the Zhmakovsky creek – natural monument «Kuzminka creek with tributaries^ and pond of the natural monument «Aksakov’s park»), disturbances in the stability of ecosystems and various stages of eutrophication were recorded. The data obtained indicate the need for strict compliance with the restrictions already provided for these natural monuments and the use of more effective protection measures to restore ecosystems and improve water quality within the studied objects.

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Isbekov, K. B., E. V. Kulikov, and S. Zh Asylbekova. "Dependence of efficiency of natural fish reproduction in water bodies of Kazakhstan from water level." Rybovodstvo i rybnoe hozjajstvo (Fish Breeding and Fisheries), no. 1 (January 1, 2021): 32–41. http://dx.doi.org/10.33920/sel-09-2101-03.

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The article deals with the relationship between the hydrological regime of water bodies and the efficiency of fish reproduction. The hydrological regime of water bodies in years of different water content influences the reproduction and, accordingly, the quantitative and qualitative composition of ichthyocenoses. The easiest way to assess the efficiency of fish reproduction is by such an indicator as the productivity of juveniles, i.e. the number of juvenile fish per unit area or volume. The material for this work was carried out in large fishing reservoirs of the Republic of Kazakhstan in the process of fishery research (2013–2018). Comparison of hydrological parameters and productivity of juveniles by years shows their relationship. Correlation coefficient between water content (runoff) of the river Zhaiyk and juvenile yield +0.73 (data set for 11 years, reliable for the level of significance p = 0.01). The yield of juvenile fish from Lake Balkhash has a high correlative dependence on the inflow of water into the lake (r = +0.826) (massif 2013–2018, reliable for the level of significance p = 0.05). Correlation analysis showed that the productivity of juvenile fish in the Kapshagai reservoir has an average degree of dependence on water content (average annual level) (r = +0.641, reliable for the level of significance p = 0.05). Regular relationships between the water regime and the efficiency of reproduction (productivity of juveniles) of fish have been established. The efficiency of natural reproduction of commercial fish species in modern conditions of the water regime, water withdrawal for economic needs and the impact of fishing is significantly reduced, but with the implementation of the reclamation measures proposed in the work, its partial restoration is possible.

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Gudratzade, Sh. "Current State of Water Bodies in Azerbaijan and Their Protection." Bulletin of Science and Practice 7, no. 10 (October 15, 2021): 31–37. http://dx.doi.org/10.33619/2414-2948/71/04.

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The article is devoted to the grouping and brief classification of natural and artificial water bodies located on the territory of Azerbaijan, in order to organize their protection. Brief and systematized information is given on the main characteristics of rivers, lakes and reservoirs that are part of the group of surface watercourses and point water bodies, as well as on water resources. Systematized information can make it possible to take appropriate measures to organize the protection of water bodies, prepare regulatory documents and more efficient and economical use of water resources.

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Gudratzade, Sh. "Current State of Water Bodies in Azerbaijan and Their Protection." Bulletin of Science and Practice 7, no. 10 (October 15, 2021): 31–37. http://dx.doi.org/10.33619/2414-2948/71/04.

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The article is devoted to the grouping and brief classification of natural and artificial water bodies located on the territory of Azerbaijan, in order to organize their protection. Brief and systematized information is given on the main characteristics of rivers, lakes and reservoirs that are part of the group of surface watercourses and point water bodies, as well as on water resources. Systematized information can make it possible to take appropriate measures to organize the protection of water bodies, prepare regulatory documents and more efficient and economical use of water resources.

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Novotny, Vladimir. "Integrated water quality management." Water Science and Technology 33, no. 4-5 (February 1, 1996): 1–7. http://dx.doi.org/10.2166/wst.1996.0480.

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Components of the integrated water quality management and planning process are described. The process is initiated by the Use Attainability Analysis (UAA) in which the ambient water quality-use based standards are justified and/or modified for the water body for which water quality management is being considered. The UAA has three components: (1) Water Body Assessment, (2) The Total Maximal Daily Load (TMDL) Process, and (3) Socio-economic Analysis. The first component identifies whether the receiving water body and watershed have a water quality problem and, subsequently, separates such water bodies into those where the water quality problem is caused by natural loads or conditions and those where man-made pollution inputs cause unacceptable water quality deterioration. The TMDL process separates water bodies into those for which water quality goals can be achieved by present and future mandated abatement of point and nonpoint sources (effluent limited water bodies) and those mandated abatement will not achieve the water quality goals (water quality limited water bodies). Extensive water quality management and expenditure of public funds is justified for the latter cases. Watersheds and receiving water bodies which are adversely affected predominantly by nonpoint (unregulated) discharges are declared as impaired and should be managed. Both reduction of waste discharges and enhancement of waste assimilative capacity-habitat restoration of the receiving water body should be considered in management of water quality limited receiving waterbodies.

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Adamska, M. "Molecular detection of Toxoplasma gondii in natural surface water bodies in Poland." Journal of Water and Health 16, no. 4 (May 17, 2018): 657–60. http://dx.doi.org/10.2166/wh.2018.236.

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Abstract The aim of this study was molecular detection of Toxoplasma gondii in 36 natural surface water bodies in Poland, including preliminary genotype identification and determination of co-occurrence of this parasite with other protozoa that have been detected in previous studies. The examined DNA samples were obtained before to detect Cryptosporidium, Giardia and free-living amoebae. Nested polymerase chain reaction (PCR) based on B1 gene and sequencing was performed for both confirmation of parasite presence in water and genotype identification. T. gondii DNA was detected in 19.4% (7/36) water bodies, while in the case of other studies, T. gondii prevalence ranged between 0% and over 56%. These differences may be caused by natural variations in T. gondii occurrence as well as different sample volumes and methods of sample processing or DNA isolation and detection. Two cases of double contamination were reported: T. gondii with Cryptosporidium parvum and T. gondii with potentially pathogenic Acanthamoeba T4 genotype, thus there is a possibility of mixed infection in humans after occasional contact with water. Obtained T. gondii strains were genetically identical or closely similar (99.8%) to RH strain representing genotype I, however, further examinations involving more loci will be conducted to identify the genotype.

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Vorobyeva*,, Irina. "COMPREHENSIVE ANALYSIS OF THE QUALITY OF WATER BODIES IN BAIKAL NATURAL TERRITORY." International Journal of Ecosystems and Ecology Science (IJEES) 8, no. 3 (May 20, 2018): 503–8. http://dx.doi.org/10.31407/ijees839.

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Wetzel, Robert G. "Wetland and shallow continental water bodies. Vol. 1. Natural and human relationships." Aquatic Botany 42, no. 3 (April 1992): 295–97. http://dx.doi.org/10.1016/0304-3770(92)90033-f.

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Poonia, Anamika, and Milap Punia. "A question on sustainability of drinking water supply: a district level analysis of India using analytic hierarchy process." Water Policy 20, no. 4 (April 13, 2018): 712–24. http://dx.doi.org/10.2166/wp.2018.104.

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Abstract The subject of drinking water supply falls under the legislative jurisdiction of the State governments in India. States have their own mechanism of drinking water supply through urban and rural local bodies. Drinking water supply itself is a multidimensional phenomenon of sources, quality, accessibility, sufficiency, etc. This study combines various aspects of drinking water supply at the district level, by assigning weights through analytic hierarchy process, to result in a drinking water supply index. The spatial pattern of drinking water supply index is not in favor of the areas having abundant natural water endowment. Areas which are low in the natural endowment of water are better in drinking water supply, while areas which have abundant natural water are not able to manage the available water and are low on the drinking water supply index. Among various socio-economic-political factors, water governance is most important in the wake of water supply being the function of urban and rural local bodies.

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Kholmogorova, N. V., and M. B. Uage. "LEGAL PROTECTION OF WATER BODIES IN MUNICIPALITIES (ON THE EXAMPLE OF IZHEVSK, UDMURT REPUBLIC)." Bulletin of Udmurt University. Series Economics and Law 32, no. 2 (April 8, 2022): 385–89. http://dx.doi.org/10.35634/2412-9593-2022-32-2-385-389.

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The article reveals the main problematic issues related to the legal protection of water bodies. It is indicated that the protection of water bodies is defined in the water legislation as a system of measures aimed at the conservation and restoration of water bodies. The authors note that this system provides for monitoring and state accounting of water bodies, as well as control (supervision) over their use, bringing to justice those responsible for violations. The article describes the main surface water bodies located on the territory of the city of Izhevsk. It is noted that in relation to surface water bodies owned by municipalities, measures for the protection of surface water bodies are carried out by local self-government bodies. The paper investigates individual environmental problems of reservoirs and watercourses of the city of Izhevsk, as a result of which there is a degradation of natural communities and a violation of the processes of self-purification of rivers. Basically, the sources of pollution and clogging are considered to be objects that discharge or otherwise supply harmful substances to water bodies (industrial enterprises, utilities, agricultural enterprises, etc.). It is concluded that the implementation of all measures for the protection of water bodies is aimed at implementing the basic principle of water legislation - the priority of protecting water bodies over their use.

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Kholmogorova, N. V., and M. B. Uage. "LEGAL PROTECTION OF WATER BODIES IN MUNICIPALITIES (ON THE EXAMPLE OF IZHEVSK, UDMURT REPUBLIC)." Bulletin of Udmurt University. Series Economics and Law 32, no. 2 (April 8, 2022): 385–89. http://dx.doi.org/10.35634/2412-9593-2022-32-2-385-389.

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The article reveals the main problematic issues related to the legal protection of water bodies. It is indicated that the protection of water bodies is defined in the water legislation as a system of measures aimed at the conservation and restoration of water bodies. The authors note that this system provides for monitoring and state accounting of water bodies, as well as control (supervision) over their use, bringing to justice those responsible for violations. The article describes the main surface water bodies located on the territory of the city of Izhevsk. It is noted that in relation to surface water bodies owned by municipalities, measures for the protection of surface water bodies are carried out by local self-government bodies. The paper investigates individual environmental problems of reservoirs and watercourses of the city of Izhevsk, as a result of which there is a degradation of natural communities and a violation of the processes of self-purification of rivers. Basically, the sources of pollution and clogging are considered to be objects that discharge or otherwise supply harmful substances to water bodies (industrial enterprises, utilities, agricultural enterprises, etc.). It is concluded that the implementation of all measures for the protection of water bodies is aimed at implementing the basic principle of water legislation - the priority of protecting water bodies over their use.

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Das, Kanu Kumar, Rezuana Islam, and Mainak Ghosh. "Harmonizing Natural and Built Environments." International Journal of Social Ecology and Sustainable Development 13, no. 1 (January 2022): 1–14. http://dx.doi.org/10.4018/ijsesd.287121.

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At the moment urban agglomeration sees how cities grow and expand within a shorter period by overlooking the existence of natural eco-system. Natural and built components of the urban environment are the main focal point for sustainable development strategies of a city. Unfortunately, economic pressure being the major driving force of our cities development always cater for high dry-land considering wet areas like a wetland, canals, khals, lowlands, water reservoir etc. as backward and primitive. Wetland and water-related resources all over the world are given less priority which is acute in urban areas and Bangladesh is not an exception. Water and water-related resources are not maintained properly resulting continuous deterioration of wetlands and water bodies. Considering Ananya R/A, Chittagong, a developing residential area on wetland, as study site this paper aims at acknowledging some ideologies of development in a wetland which will contribute to enriching the natural environment of the area by introducing chemistry of land-water-ecology.

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Roy, Udita, and Soumi GuhaPolley. "Study of Antimicrobial Resistance in Recreational Water Bodies." International Journal of Chemical and Environmental Sciences 3, no. 1 (October 1, 2021): 7–10. http://dx.doi.org/10.15864/268963821834540173.

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Thc development and proliferation of antibiotic resistance in pathogen, commensal and environmcntal microorganisms is a major heallh conccrn. The natural environment may act as a site of propagation and maintenance of antibiotic resistance and greatly depends on various human activities. The anthropogenic activities leading to rise and dissemination of antibiotic resistance should be studied extensively. Recreational water bodies can act both as the recipient and reservoir of antimicrobial resistance (AMR) and thus serve as a potent site of horizntal transfer of antibiotic resistant genes and dissemination of the same to environmental microbes. In the current study, water samples of recreational water bodies were investigated as possible sources of antibiotic resistant bacterial population. Water samples from RabindraSarobar of Kolkata was surveyed and antibiotic resistance patern of gram negative fecal coliforrnswere mainly evaluated. Many of them were found to be Multidrug resistant(MDR) which is of great concem to the public health.

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Khalifeh Soltanian, F., M. Abbasi, and H. R. Riyahi Bakhtyari. "FLOOD MONITORING USING NDWI AND MNDWI SPECTRAL INDICES: A CASE STUDY OF AGHQALA FLOOD-2019, GOLESTAN PROVINCE, IRAN." ISPRS - International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences XLII-4/W18 (October 18, 2019): 605–7. http://dx.doi.org/10.5194/isprs-archives-xlii-4-w18-605-2019.

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Abstract. Assessment of changes of water bodies and vegetation by traditional methods is very difficult and costly. The use of satellite data makes it possible to study water bodies and vegetation more accurately and cost effectively. Accordingly, various digital methods have been developed to discover and detect changes of earth's surface features. Flood is one of the important factors contributing to the destruction of natural resources. The purpose of this research is to evaluate the flood areas in the Aghqala area in Golestan province of Iran. The level of water bodies in the spring of 2018 and 2019 was compared and evaluated based on the NDWI and MNDWI indices using Landsat images. The results showed that water bodies’ area in the spring of 2018 was 24.13 km2 which increased to 185.34 km2 at 2019 using NDWI; while the MNDWI due to the excessive sensitivity to the water considered agriculture wetlands as an area of water bodies. Therefore, the NDWI yielded more logical results. Also, change detection methods based on spectral and radiometric information using indices are more accurate than the classification maps and more changes can be shown. Using satellite imagery to monitor changes is essential to facilitate the planning of natural hazards management.

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Дмитриева, Vera Dmitrieva, Нефедова, and Yevgenia Nefedova. "Hydroecological role of forest in formation of regime of water resources." Forestry Engineering Journal 5, no. 3 (November 15, 2015): 22–31. http://dx.doi.org/10.12737/14150.

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Intensive economic use of water resources as well as disregard for mechanisms of forma-tion of their composition and properties often leads to negative transformation of water bodies’ state. Reinforcement of forest capacity to protect water is one of the most important ways to conserve natural state of water resources. In considered Voronezh region insular forest distribution determines specific impact to elements of the water cycle and regulation of hydrological regime of water bodies.

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Larin, Dmitry, Evgeny Mikhaylov, and Elena Staseva. "Restoration of the disturbed natural hydrological regime of the fish-breeding channel Kazachy Yerik within the framework of fishery reclamation." E3S Web of Conferences 273 (2021): 03007. http://dx.doi.org/10.1051/e3sconf/202127303007.

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Intensive economic use of small rivers and channel water bodies leads to their pollution and siltation. The anthropogenic impact on aquatic ecosystems negatively affects the state of the fish industry, which leads to a reduction in the spawning fund, deterioration of the conditions for reproduction and survival of juveniles. Violation of the existing conditions for the habitat and reproduction of aquatic organisms leads to a decrease in the productivity of water bodies and the loss of their fishery value. The inflow from the catchment area of solid and liquid runoff containing organic matter, oil products and other impurities of anthropogenic and technogenic origin leads to irreversible entry, siltation and shallowing of small rivers and channel water bodies. The restoration of the disturbed hydrological regime of water bodies by means of reclamation works contributes to the restoration of natural spawning grounds for commercial fish species, an increase in yield and productivity.

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Kiptach, Fedir, and Nataliya Blazhko. "Natural and artificial surface water bodies owned and used by forestry enterprises of Lviv region." Visnyk of the Lviv University. Series Geography 53 (December 18, 2019): 177–85. http://dx.doi.org/10.30970/vgg.2019.53.10665.

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The areas of land with natural and artificial surface water bodies owned and used by forestry enterprises of administrative and territorial units of Lviv region are analyzed. Their classification according to the rating values of the described indicators is made, and schematic charts are drawn. The interval for determining the number of classification groups was calculated geometrically as the amplitude between the maximum and minimum values of the areas is too large. Forestry enterprises using water from natural and artificial surface water objects covering an area of 1,963.3 ha (including 1.5 % (642.1 ha) from natural streams (rivers and springs) and lakes and 3.1 % (1,321.2 ha) of artificial surface water bodies (canals, reservoirs and trenches, ponds and artificial water bodies) account for 12.9 % of the total area (42,781.6 ha) of lands of this category in the region. The largest areas of land with natural and artificial surface water bodies owned and used by forestry enterprises are recorded in Sokal (315 ha), Zhovkva (262.8), Busk (235.1), Skole (196.6), Brody (162.9), Mykolaiv (153), Drohobych (125.1), Radekhiv (120), Turka (118.7), and Kamyanka-Buzka (92.8 ha) districts, medium and moderate ones – in Staryi Sambir (68.3 ha) and Yavoriv (27 ha) districts, and the smallest ones – in Stryi (18 ha), Horodok (15), Zolochiv (15), Pustomyty (13), Sambir (7), Zhydachiv (6), Peremyshliany (4), and Mostyska (2.7 ha) districts and in Lviv (5.3 ha). The largest areas of land with natural surface water bodies owned and used by forestry enterprises are recorded in Skole (196.1 hа), Drohobych (124.6), Turka (118.7) and Staryi Sambir (65.8 hа) districts, considerable, medium and moderate ones – in Brody (29.8 hа), Zhovkva (25.5), Yavoriv (21), Zolochiv (13), Kamyanka-Buzka (11.7), Stryi (17) and Sambir (17 hа) districts, small, very small and too small – in Sokal (6.0 hа), Mostyska (2.7), Mykolaiv (2), Busk (1.9) and Zhydachiv (1 hа) districts and in Lviv (5.3 hа), in Horodok, Peremyshliany, Pustomyty and Radekhiv districts no such land has been recorded. The largest and considerable areas of land with artificial surface water bodies owned and used by forestry enterprises are recorded in Sokal (309.0 hа), Zhovkva (237.3), Busk (233.2), Mykolaiv (151), Brody (133.1), Radekhiv (120) and Kamyanka-Buzka (81.1 hа) districts, medium and moderate ones – in Horodok (15 hа), Pustomyty (13), Stryi (8), Yavoriv (6) and Zhydachiv (5 hа) districts, small, very small and too small – in Peremyshliany (4 hа), Staryi Sambir (2.5), Zolochiv (2), Skole (0.5) and Drohobych (0.5 hа) districts, in Mostyska, Sambir and Turka districts no such land has been recorded. Key words: surface water, streams, water reservoirs, forestry enterprises.

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Sizova, Yu V., A. N. Smirnov, E. E. Borisova, and M. V. Shuvarin. "WATER BODIES OF THE NIZHNY NOVGOROD REGION: CLASSIFICATION, PROBLEMS OF PROTECTION AND ENVIRONMENTAL REHABILITATION." Scientific Life 16, no. 3 (2021): 303–15. http://dx.doi.org/10.35679/1991-9476-2021-16-3-303-315.

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The article presents an analysis of the water bodies of the Nizhny Novgorod region and the main approaches to solving the problem of protection and environmental rehabilitation of small water bodies in the region. Water is a valuable natural resource that is of great importance in industrial and agricultural production, therefore, the protection of water resources and ensuring their environmental safety are among the most important problems facing humanity. Currently, there is increasing attention to small rivers, whose ecosystems are changing and degrading under the influence of anthropogenic activities. The Nizhny Novgorod Region is one of the most water-rich regions of Russia. There are more than 10,000 water bodies of natural and artificial origin, a significant part of them belong to small water bodies, many of which are practically not studied. Currently, special attention is paid to the problems of pollution of such water bodies as small rivers. In terms of the volume of polluted and insufficiently treated wastewater, the Nizhny Novgorod Region ranks first among the regions of the federal district. In order to solve the problem, the State Program "Environmental Protection of the Nizhny Novgorod Region" is being implemented in the region, the structure of which includes the subprogram "Development of the water management complex of the Nizhny Novgorod Region", aimed at restoring water bodies and ensuring the protection of the population and economic facilities from floods and other negative effects of water. As part of the development of this subprogram, a study of water bodies was conducted on the territory of the Nizhny Novgorod region. The research results indicate that water bodies are unevenly distributed on the territory of the Nizhny Novgorod region. Water bodies experience the greatest anthropogenic impact from housing and communal services, industry, which is most typical for large cities (Nizhny Novgorod, Kstovo, Arzamas). Small water bodies are polluted mainly as a result of agricultural and recreational activities. The proposed approach to the protection of water resources of both large and small water bodies, which provides for a set of measures to improve the efficiency of their use, protect them from pollution and depletion, eliminate accumulated environmental damage, preserve and restore the biological diversity of aquatic ecosystems, is a factor in preserving ecological balance and improving the quality of life of the population.

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Journal articles on the topic 'Natural water bodies'

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