scholarly journals Epilithic lichen cover in assessing the quality of the coastal water environment in Karelia

2021 ◽  
Vol 20 (1) ◽  
pp. 409-413
Author(s):  
A. V. Sonina
Keyword(s):  
Species Diversity ◽  
Coastal Water ◽  
Water Environment ◽  
The State ◽  
Lichen Species ◽  
Water Bodies ◽  
Phosphorus Compounds ◽  
Lake Ladoga ◽  
Lichen Cover

The paper summarizes the data obtained by analyzing the reaction of the coastal epilithic lichen cover tothe chemical parameters of water in reservoirs of different types and uses. The study was carried out on the shores of freshwater bodies (Lake Onega, Lake Ladoga, Lososinka, Suna rivers) with different anthropogenic pressures in the Republicof Karelia. At each place of study, the lichen cover was described at the survey sites (frame 10 x 20 cm) along the transectand water samples were taken for chemical analysis. The aim of the work is to identify indicators of the coastal epilithic lichen cover to indicate the quality of the aquatic environment and assess the state of coastal ecosystems. The lichen flora ofthe surveyed coasts of fresh water bodies has 53 species, the highest species diversity of lichens is characterized by placeswithout obvious sources of pollution – the Kivach reserve (29 species), the shores of Lake Ladoga (27 species) and the Botanical Garden of PetrSU (16 species), and in urban conditions ( Petrozavodsk), a large settlement (Yanishpole) and nearthe pulp and paper industry (Kondopoga), the number of lichen species is much lower (8, 5 and 4). Regression analysisshowed the dependence of the number of lichen species on the registration site on the concentration of phosphorus compounds in water (p < 0.05). A tendency to a decrease in species diversity and a decrease in the total coverage of lichens withan increase in nitrogenous compounds in water was noted. This made it possible to propose the epilithic lichen cover as anobject-indicator of the state of the coastal water environment under conditions of anthropogenic pollution of water bodies.

scholarly journals ZOOINDICATION OF WATER BODIES WITHIN PETROLEUM INDUSTRIAL TERRITORIES OF THE BOLSHEZEMELSKAYA TUNDRA

2021 ◽  
pp. 83-92
Author(s):  
T. Shikhova ◽  
E. Scopin ◽  
R. Bolshakov
Keyword(s):  
Species Diversity ◽  
River Basin ◽  
Oil And Gas ◽  
Oil And Gas Industry ◽  
The State ◽  
Water Bodies ◽  
Large Lakes ◽  
Quality Of Water ◽  
State Of Water

Intensive development of the oil and gas industry and accidents on oil pipelines become the reason of the environmental tension in the Pechora River basin (Nenets Autonomous District). Data on changes in water quality in five lakes and a small watercourse in the territory of oil fields of the Bolshezemelskaya tundra are presented. The bioindication indices (Berger-Parker (D), Shannon biodiversity (H '), Woodiwiss (W), Pantle-Buck (S), Balushkina (Kch)) were applied. The assessment of the state of water bodies in the Kolva River Basin (large lakes - Kolvaty and Nercheity), in the Laya River Basin (shallow lakes - Krugloye, Bezymyannoe 1, Bezymyannoe 2, stream) was done. The 28 samples of zoobenthos was processed by the standard method in July 2012 and 2019. A low diversity of benthic invertebrates was revealed for 5–20 taxa of the rank of families and orders. During the considered period, the changes have occurred in the structure and composition of the zoobenthos of water bodies. In 2019, the species diversity decreased in Kolvaty Lake (H'<2). There are no species of the crustacean complex (Monoporeia affinis, Mesocyclops leuckarti, Heterocope borealis) and larvae of Trichoptera. Only Sphaeriidae and Chironomidae with a predominance of Psectrocladius psilopterus (D = 55%) were recorded. The species diversity in Nercheity Lake increased (H'> 2) with a change in the dominant taxa: the larvae of the chironomids Ablabesmyia monilis (D = 44%) were found in 2012, the lower crustaceans (D = 47–51%) - in 2019. However, according to the totality of hydrobiological indicators, the quality of water in the lakes of the Kolva River Basin in 2019 compared to 2012 did not change significantly. The quality of water in the Krugloye and Bezymyannoe 1, Bezymyannoe 2 lakes (the Laya River Basin) has improved that is confirmed by a significant increase of species diversity. The most characteristic groups of benthic communities in these lakes are lower crustaceans (Cladocera, Copepoda, Ostracoda) and Chironomidae. The indicators of clean waters are o-β-mesosaprobic species Cladocera, Copepoda Heterocope appendiculata, Heterocope borealis (in the oligotrophic lakes), caddisfly Limnephilus stigma (in the Krugloe Lake), rotifer Polyarthra euryptera (in the Bezymyannoe 2 Lake), mayfly larvae Centroptilum luteolum. More resistant to organic pollution Copepoda began to prevail in abundance and diversity in Bezymyannoe 1 and Bezymyannoe 2 lakes, with a decrease in the taxonomic composition of Cladocera, which indicates the eutrophication of these water bodies. In most lakes, the water corresponds to the III quality class ("moderate pollution"), but in the Kolvaty lake and in the Bezymyanny stream (the Laya River basin) was recorded the biogenic pollution. Totally, insignificant taxonomic changes in zoobenthos structure took place in the lakes and the state of water bodies of the surveyed tundra remains relatively stable.

scholarly journals Analysis of the influence of the activities of industrial enterprises on the water state of the ladoga lake

2020 ◽  
Author(s):  
М.А. Синякова ◽  
Л.В. Бронникова ◽  
Н.И. Бронникова
Keyword(s):  
Water Samples ◽  
Water Environment ◽  
The State ◽  
Phosphorus Compounds ◽  
Lake Ladoga ◽  
Nitrogen And Phosphorus ◽  
North West ◽  
Industrial Enterprises ◽  
The Impact ◽  
Ship Repair

Целью настоящей работы является изучение и анализ распределения концентраций биогенных элементов в водах Ладожского озера. Проведена оценка воздействия производственной деятельности расположенных на берегах Ладожского озера промышленных предприятий, в том числе судостроительного и судоремонтного профиля, на состояние водной среды Ладоги. Работа проведена в рамках реализации мероприятий по охране водных объектов Северо-Западного региона, как одного из приоритетных направлений природоохранной деятельности. В ходе настоящего исследования был произведен отбор проб воды в различных частях акватории Ладожского озера и их последующий химический анализ по таким важнейшим гидрохимическим показателям, как соединения азота и фосфора. Проведена обработка и анализ полученных проб воды на содержание общего фосфора, минерального фосфора и аммонийного азота, в сравнении с предельно допустимой концентрацией. Результаты обработки полученных проб сопоставлены с результатами аналогичных замеров, полученных в предыдущие годы. По итогам сравнительного анализа дана оценка динамики изменения рассматриваемых показателей состояния Ладожских вод. Как показали результаты исследования, производственная деятельность судостроительных и судоремонтных предприятий, расположенных в зоне Ладожского озера, не оказывает негативного воздействия на качество Ладожской воды в части ее загрязнения соединениями фосфора и азота. Прогноз в отношении сохранения существующей картины распределения биогенных элементов в воде Ладожского озера положительный. The aim of this work is to study and analyze the distribution of concentrations of nutrients in the waters of Lake Ladoga. The impact of production activities located on the shores of Lake Ladoga industrial enterprises, including shipbuilding and ship repair profile, on the state of the Ladoga water environment has been assessed. The work was carried out as part of the implementation of measures to protect water bodies of the North-West region, as one of the priority areas of environmental protection. In the course of this study, water samples were taken in various parts of Lake Ladoga and their subsequent chemical analysis by such important hydro-chemical parameters as nitrogen and phosphorus compounds. The processing and analysis of water samples for the content of total phosphorus, mineral phosphorus and ammonium nitrogen was carried out in comparison with the maximum permissible concentration. The results of processing the obtained samples are compared with the results of similar measurements obtained in previous years. Based on the results of the comparative analysis, an assessment is given of the dynamics of changes in the considered indicators of the state of Ladoga waters. As the results of the study showed, the production activity of shipbuilding and ship repair enterprises located in the Lake Ladoga zone does not adversely affect the quality of the Ladoga water in terms of its pollution with phosphorus and nitrogen compounds. The forecast regarding the preservation of the existing pattern of distribution of nutrients in the water of Lake Ladoga is positive.

scholarly journals Восстановление сообществ водных беспозвоночных в результате очистки донных отложений от нефти

2017 ◽  
Vol 7 (4) ◽  
pp. 407-413
Author(s):  
Yu. A. Noskov ◽  
D. S. Vorobiev
Keyword(s):  
Species Diversity ◽  
Bottom Sediments ◽  
Natural Water ◽  
Oil Spills ◽  
Water Environment ◽  
Water Bodies ◽  
Time Interval ◽  
Ecological Groups ◽  
Oil Concentration ◽  
Natural Water Bodies

Oil decontamination of water bodies is one of the most complex and time-consuming tasks in the field of liquidation of oil spills. The complexity of cleaning natural water bodies is associated with a dynamic water environment and a variety of oil transformation processes that occur in the water. The most advanced and developed are technologies and methods of collecting oil and oil products from the surface of water bodies. Economically acceptable and well-grounded technologies for oil decontamination of bottom sediments are presented in minimal quantities, and often are not applicable to natural water bodies. The technology for oil decontamination based on flotation has been developed and successfully applied on Lake Shchuch'ye in 2004–2005 and showed a positive result after two summer seasons of work. This article presents the results of aquatic ecosystems recoverу as a result of oil decontamination of bottom sediments. The issue of restoration of the aquatic ecosystem as a result of cleaning bottom sediments from oil after a considerable time interval has been studied. A comparison of the quantitative indices and species diversity of the zooplankton of Shchuch'ye Lake from 2004 to 2016 showed a clear tendency of increasing the abundance, biomass and species diversity of total zooplankton and Cladocera in particular. In 2016 the amount of zooplankton species of Shchuch’ye Lake reaches the number of species of the uncontaminated lake, using as a control. It was shown that the macrozoobenthic fauna of Shchuch'ye Lake is poorer in both the number of main ecological groups and in species diversity within certain groups characteristic than in the uncontaminated lake. Some groups were found in both lakes, but the species diversity of Lake Shchuchye was poorer. The exception was a group of leeches, which had a greater variety in Lake Shchuch'ye. The change in the oligochaetene complex to chironomid, both in numbers and in biomass, indicates an improvement in environmental conditions, since chironomids are more sensitive to the quality of the habitat. Chemical analysis of bottom sediments in 2016 revealed that the oil concentration did not exceed 0.9 mg / kg, which indicates the effectiveness of the oil decontamination technology of bottom sediments.

scholarly journals Methodological aspects of assessment of the state of chemical pollution and water quality of surface waters in Ukraine

2020 ◽  
Vol 20 (66) ◽  
pp. 33-61
Author(s):  
V Kozak ◽  
◽  
A Tovmachenko ◽  
M Gertsiuk ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Surface Waters ◽  
Ecological Condition ◽  
The State ◽  
Water Bodies ◽  
Chemical Pollution ◽  
Surface Water Bodies ◽  
Micro Pollutants

The main sources of chemical pollution of surface water bodies of Ukraine are shown and it is noted that the ecosystem of the environment and water resources, being under constant man-caused load, tend to steadily deteriorate the ecological condition. Methods for assessing the quality of surface waters using the maximum allowable concentrations of harmful substances in water and a comprehensive assessment of the ecological status of surface water by integrated hydrochemical parameters are described. International approaches to the assessment of the state of surface water bodies are considered. It is noted that the most complete information on the state of the aquatic ecosystem can be obtained using a set of physicochemical and biological parameters. There are shortcomings in the monitoring of organic micro-pollutants in surface waters. The analysis of the international experience of determination of water quality and parameters of toxicological action of organic micro-pollutants with application of chemo-informative methods for modeling of an ecological condition of water systems is carried out.

Tourism Impact Assessment on Coastal Water Environment - A Case Study on HangZhou Bay North Shore in Shanghai

2012 ◽  
Vol 518-523 ◽  
pp. 5203-5208
Author(s):  
Shi Dong Liu ◽  
Jun Gao ◽  
Dong Qian Xue
Keyword(s):  
Coastal Water ◽  
Environmental Quality ◽  
Water Body ◽  
Hot Spot ◽  
Water Environment ◽  
Hangzhou Bay ◽  
Environment Impact ◽  
North Shore ◽  
Water Environmental Quality

The study on tourism environment impact on coastal area has been a hot spot for coastal ecological environment research in our country. Based on grey recognition mode, this Paper analyzes the water environment quality of Shanghai Hangzhou Bay north shore coastal artificial bathing place in the spatial-temporal perspectives and researches the impacts of coastal tourism activities on water environment. The research results reveal that: (1) Coastal artificial bathing place is beneficial for protecting and improving coastal water environmental quality and different management modes on coastal artificial bathing place present different temporal features on protection of coastal water body; (2) In tourist peak season, environmental management improves the surrounding water environmental quality of artificial bathing place; (3) In the same coastal artificial bathing place, with different water body purification technologies and different influence mechanism, the tourism activities shows different levels of impact on water environment.

scholarly journals Assessing relationship of degradation of coastal zones and phytoplankton species structure of Lake Uvildy and Lake Turgoyak (South Ural, Russia)

2021 ◽  
Vol 958 (1) ◽  
pp. 012002
Author(s):  
A Kostryukova ◽  
I Mashkova ◽  
S Belov ◽  
E Shchelkanova ◽  
V Trofimenko ◽  
...  
Keyword(s):  
Species Diversity ◽  
Green Algae ◽  
The State ◽  
Oligotrophic Lake ◽  
Water Bodies ◽  
Current Paper ◽  
Species Structure ◽  
Phytoplankton Species ◽  
Coastal Zones ◽  
Degree Of Regression

Abstract The current paper aims at analyzing the species structure of the phytoplankton community of two reservoirs on the territory of South Ural. The given water bodies are of different trophicity, namely, oligotrophic Lake Turgoyak and oligomesotrophic Lake Uvildy. Both lakes, being natural monuments, are subject to intensive recreational use. A large flow of tourists is a serious problem for the ecological state of the water bodies coastal areas. Also, tourist activities can affect the state of aquatic biocenoses. In this work, the degree of recreational degression of the selected study sites was assessed. The analysis was carried out according to the state of landscapes, vegetation and trampledness of the surveyed area. Based upon the research the current paper reveals spatial patterns in the distribution of recreational load on the coastal geosystems and the level of anthropogenic transformation of the territory. Mainly due to the high density of recreational centres and camping areas, the coastal area is characterized by a high degree of regression. Some signs allow forecasting changes in the species composition of phytoplankton communities and the trophic status of the lakes depending on the degradation of the coastal zones. Diatoms (Bacillariophyta) have been dominant in plankton phytocoenosis of Turgoyak and Uvildy. At the same time, in the oligomesotrophic lake (Uvildy), the number of diatom species is significantly reduced in areas with a higher degree of regression. Thus, diatoms are sensitive indicators of anthropogenic impact on aquatic ecosystems. Green and blue-green algae biodiversity has grown in the water body. However, no relationship was found between their species diversity and the level regression. But the following tendency is observed for the oligotrophic Lake Turgoyak. The species diversity of green algae grows with an increase in the degression degree. To forecast the further state of the studied water bodies, the revealed patterns in the change of the phytoplankton species structure depending on the degradation level of the coastal territories can be used as eutrophication signs.

Manajemen Ekonomi Outopilot: Kegagalan Negara Mencari Identitas?

Liquidity ◽  
2018 ◽  
Vol 1 (2) ◽  
pp. 142-152
Author(s):  
Mukhaer Pakkanna
Keyword(s):  
Economic Development ◽  
National Economy ◽  
The State ◽  
Political Democracy ◽  
Economic Democracy ◽  
Quality Of Democracy ◽  
Economic Disparities ◽  
National Economic ◽  
Production And Distribution

Political democracy should be equivalent to the economic development of the quality of democracy, economic democracy if not upright, even the owner of the ruling power and money, which is parallel to force global corporatocracy. Consequently, the economic oligarchy preservation reinforces control of production and distribution from upstream to downstream and power monopoly of the market. The implication, increasingly sharp economic disparities, exclusive owner of the money and power become fertile, and the end could jeopardize the harmony of the national economy. The loss of national economic identity that makes people feel lost the “pilot of the state”. What happens then is the autopilot state. Viewing unclear direction of the economy, the national economy should clarify the true figure.

Diatoms in the Early Valdai (Weichselian) sediments in Lake Ladoga basin

2019 ◽  
pp. 225-228
Author(s):  
Anna V. Ludikova
Keyword(s):  
Species Diversity ◽  
High Energy ◽  
Lake Ladoga ◽  
Diatom Assemblages ◽  
Marine Diatoms ◽  
Selective Preservation

The pioneer diatom study of the Early Weichselian (Valdai) sediments in Lake Ladoga basin was performed. The specifics of the diatom assemblages (co-occurrence of ecologically incompatible taxa, poor species diversity, low diatom concentration and selective preservation) suggest that during the Early Weichselian time intense erosion of previously deposited marine Eemian (Mikulino) sediments prevailed, which resulted in re-deposition of marine diatoms. The sedimentation took place in high-energy environments unfavorable for diatom accumulation and preservation.

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