scholarly journals PHYTOPLANKTON OF SURFACE WATERS UNDER OIL POLLUTION (SAMOTLOR FIELD, WESTERN SIBERIA)

2019 ◽  
Vol 16 (32) ◽  
pp. 306-320
Author(s):  
O. N. SKOROBOGATOVA ◽  
E. R. YUMAGULOVA ◽  
T. V. STORCHAK ◽  
N. A. IVANOVA
Keyword(s):  
Surface Waters ◽  
Western Siberia ◽  
Oil Pollution ◽  
Floristic Composition ◽  
Ammonium Nitrogen ◽  
Water Bodies ◽  
Freshwater Phytoplankton ◽  
The North ◽  
Chemical Composition Of Water ◽  
Analytical Review

The study of freshwater phytoplankton of the Samotlor field is associated with intense oil production and fragmentary reports on the state of wetland communities in the north of Western Siberia. The obtained data expands and complements the information about algae in extreme conditions. The goal of this research is to study the structure of the phytoplankton of high-latitude water bodies under oil pollution. The method of chemical-analytical studies in surface waters revealed excess standards in 2-62 times. By the amount of ammonium nitrogen, the studied water bodies are classified as polluted and very polluted. The amount of sulfates, nitrates, and phosphates in all water samples is lower than the standard MPCfw. During the microscopic examination, 88 algae from 48 genera, 29 families, 10 classes and 7 divisions were found. The basis of the floristic composition consists of Bacillariophyta, Euglenophyta and Chlorophyta. One dominant species (Kolbe-Visloukh method) and seven subdominants were identified. The most successful algae in plankton make up 4.5%. The analytical review showed the predominance of planktonic algae, which are indifferent to salinity and pH, cosmopolitan and ?-mesosaprobic in terms of saprobity. According to the data obtained, a significant deviation of parameters in the chemical composition of water, as well as in the structure dominants, and abundance of phytoplankton from the regional norm, was identified. Phytoplankton under oil pollution is poor in composition, and a significant number of large taxa with a small number of species emphasizes the complexity of the fluorogenic processes in the waters of the Samotlor field. The materials can be applied in a comprehensive study of water bodies, their typological characteristics, in the organization of environmental monitoring and the development of measures to protect aquatic ecosystems from pollution and eutrophication.

scholarly journals Natural Water Environmental Monitoring of the Surgut District (Western Siberia, Russia)

2020 ◽  
Vol 6 (11) ◽  
pp. 117-121
Author(s):  
R. Shumaeva
Keyword(s):  
Surface Waters ◽  
Western Siberia ◽  
Oil And Gas ◽  
Oil Pollution ◽  
Oil And Gas Industry ◽  
High Iron Content ◽  
Gas Industry ◽  
Global Problems ◽  
High Degree ◽  
Surface Water Samples

The problem of ecology is one of the global problems of all mankind. Many factors contribute to environmental pollution. One of them is the oil and gas industry. In lakes Vershinnoe, Piltanlor, Vat’lor, Chikkhyilor, Kachnylor (Surgut District, Khanty-Mansiysk Autonomous Okrug), 103 surface water samples were taken. Sampling was carried out from April to October 2018–2020. A high degree of oil pollution was recorded in 63.11% of the samples. The conclusion is made. That the surface waters of the Khanty-Mansiysk Autonomous Okrug are characterized by low mineralization, high iron content and a high degree of pollution with oil products.

scholarly journals GENETIC POLYMORPHISM OF THE NORTHERN PIKE ESOX LUCIUS L. IN CONDUITIONS OF OIL POLLUTION

2017 ◽  
pp. 136-143
Author(s):  
Yulia Sergeevna Nikulina ◽  
Elena Alexandrovna Borovikova ◽  
Yuryi Alexandrovich Noskov ◽  
Maxim Dmitrievich Tumanov
Keyword(s):  
Genetic Polymorphism ◽  
Control Region ◽  
Oil Pollution ◽  
Northern Pike ◽  
Esox Lucius ◽  
Komi Republic ◽  
Water Bodies ◽  
Pike Esox Lucius ◽  
The North ◽  
D Loop

The paper describes the results of the unique analysis of nucleotide sequences of two fragments of the mitochondrial DNA (mtDNA): cytochrome c- oxidase subunite 1 gene fragment (Co-1) and a control region fragment (D-loop) for Northern pike Esox lucius from Shchuchye (No. 1-3) and Bezymyannoye lakes (the Republic of Komi). Lake district Shchuch'ye was exposed to oil pollution. Bezymyannoye lake is in better situation, that is why it is taken as a control water body without oil pollution, along with literature data and information from the GenBank (NCBI). The populations studied are characterized by a low level of genetic polymorphism, which is higher than in the lake pike of Poland, according to the literature data. For each mtDNA fragment taken for analysis there were described two haplotypes; one of the variants of a D-loop was unique. Phylogeographic analyses was performed using practical data and information of the GenBank (NCBI) for Co-1 and D-loop of pike. The results for Co-1 sequences were more interesting. Three groups of Co-1 haplotypes were revealed with definite geographic distribution. The first group combines haplotypes from Greece, Turkey, Macedonia (south philogenetic group). The second group includes the sequence variants of the E. lucius from Central Europe, and the third - the variants found in the water bodies of Northern Europe (the Scandinavian Peninsula) and haplotypes of the pike populations of lakes in the Komi Republic (northern phylogenetic line). Thus, the Komi populations are more close relation with Northern pike from the North of Europe, which shows close relationship of E. lucius to the populations in the North Europe. The mean value of the p -distances for the control region and Co-1 of mtDNA fragment between sequences of pike from the lakes of the Komi Republic and the Northern European water bodies made 0.5% and 0.3%, respectively. Differences in the level of polymorphism between samples from lakes with oil pollution and sound reservoirs at this stage of the study haven’t been revealed.

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