scholarly journals Bioindication assessment of the waters of the Chernaya River

Author(s):  
A. K. Jiyenbekov ◽  
S. B. Nurashov ◽  
E. S. Sametova ◽  
G. B. Dzhumakhanova

The purpose of the current study was to identify the species indicators of the communities of the ChernayaRiver and to assess the water quality by bioindication methods. During the summer field trips in 2019–2020 on the territoryof the Zhongar–Alatau Natural State Reserve within the framework of the special purpose funding program № BR05236546“Implementation by the state botanical gardens of the priority scientific and practical tasks of the global strategy for plantconservation as a sustainable system for maintaining biodiversity” (head, Dr. G. T. Sitpayeva). In the course of the study,algae were sampled from the Chernaya River, and their species composition was studied A total of 94 species and varietiesof algae from four divisions were found. Analysis of indicator types by water properties: temperature, oxygen saturation,organic pollution, salinity, trophic state of water and the type of nutrition of algae species has been revealed. This was thefirst experience of implementing a bioindication approach to the environmental assessment of the water quality of thisriver. The most significant types of diatoms strongly predominated in different studied places of the river. It was revealedthat the algae species can characterize the composition of the river as slightly alkaline, slightly saline, moderate, medium –acidified water with low organic pollution. Algae communities are mainly represented by benthic and planktonic – benthicautotrophic species. Statistical analysis of species – mediated relationships has shown that most species prefer to survive incommunities with complex structures formed in poorly polluted organic waters.

2020 ◽  
Vol 32 ◽  
Author(s):  
Zahraddeen Hassan Yusuf

Abstract: Aim Phytoplankton monitoring as bioindicators to assess the health of the Nasarawa reservoir and also to evaluate the relationship between phytoplankton and reservoir environmental variables. Methods Phytoplankton and water samples from Nasarawa reservoir (Nigeria) were collected and analysed for ten months (February, 2018 to November, 2018) using standard methods at five sampling sites. Results A total of 38 genera belonging to five major families such as: Bacillariophyceae (42%), Chlorophyceae (24%) Cyanophyceae (13%), Deemidiaceae (18%) and Euglenophyceae (3%) were recorded. Four Phytoplankton classes; Bacillariophyta, Chlorophyta Cyanophyta, and Desmidiaceae show positive close relation with dissolved oxygen, pH, transparency, and total dissolved solids. The overall phytoplankton density in the reservoir was higher in dry season than the wet season. Palmer pollution index was employed to study the water quality of the reservoir. The total score was calculated to be 25, showing evidence of high organic pollution. Conclusions The presence of organic pollution indicators Closterium sp, Navicula sp, Nitzschia sp, Synedra sp, Chlamydomonas sp, Cyclotella sp and Anacystis sp is a warning sign of the deteriorating condition of the water quality in the reservoir. Measures need to be enforced to reduce the rate of pollution of the reservoir arising from the human activities in the catchment of the reservoir.


2020 ◽  
Vol 22 (3) ◽  
pp. 1-16
Author(s):  
Sophia Barinova ◽  
Na Liu ◽  
Jiyang Ding ◽  
Yonglei An ◽  
Xueming Qin ◽  
...  

Abstract The ecological analysis of 31 algae and cyanobacteria indicators assessed the water quality of the Changchun drinking water Xinlicheng Reservoir by using bio-indication methods. The water was fresh, low alkaline, low-saline, middle oxygenated, with reached nutrients and organic pollution and mesotrophic to eutrophic. Statistics reveal significant variables that impacted algal diversity were nutrients, water quality was low to the middle polluted Class II-III. The indices of saprobity and WESI show the high self-purification capacity and low-toxicity impact. We revealed potential threatening species of cyanobacteria. The improving water quality from 2007 up to now has been revealed.


Author(s):  
Gabriela Pérez Castresana ◽  
Víctor Tamariz Flores ◽  
Lucía López Reyes ◽  
Fernando Hernández Aldana ◽  
Rosalía Castelán Vega ◽  
...  

The Atoyac River crosses the metropolitan area of Puebla, Mexico, and presents a condition of severe degradation that has been poorly studied. The research was conducted in the year 2016 and analyzed the space-time dynamics of the water quality of the river, the increase in pollution in the period 2011–2016, and the water quality of the Atoyac River used for agricultural irrigation and human consumption in the population of Emilio Portes Gil, Ocoyucan, based on official Mexican standards (NOMs). The anoxic state of the river was demonstrated (~1.47 mgO2/L) and the high organic pollution, particularly in drought, as well as the presence of large populations of coliform bacteria, and 11 enterobacteries of pathogenic importance. The pollution recorded an average increase of 49% in the period 2011-2016, and the values of Fe, Al, Pb, and Cd in variable percentages. It was evidenced that water for irrigation and wells is contaminated with fecal bacteria (104–549 NMP/100 mL), including pathogenic. In wells, the concentration of heavy metals was 5 times higher in drought. These results represent a serious threat for the population of Emilio Portes Gil and the environment in the metropolitan area of Puebla.


2017 ◽  
Vol 2017 ◽  
pp. 1-16 ◽  
Author(s):  
Teck-Yee Ling ◽  
Norliza Gerunsin ◽  
Chen-Lin Soo ◽  
Lee Nyanti ◽  
Siong-Fong Sim ◽  
...  

This study examined the water quality of the large young tropical Bakun hydroelectric reservoir in Sarawak, Malaysia, and the influence of the outflow on the downstream river during wet and dry seasons. Water quality was determined at five stations in the reservoir at three different depths and one downstream station. The results show that seasons impacted the water quality of the Bakun Reservoir, particularly in the deeper water column. Significantly lower turbidity, SRP, and TP were found during the wet season. At 3–6 m, the oxygen content fell below 5 mg/L and hypoxia was also recorded. Low NO2--N, NO3--N, and SRP and high BOD5, OKN, and TP were observed in the reservoir indicating organic pollution. Active logging activities and the dam construction upstream resulted in water quality deterioration. The outflow decreased the temperature, DO, and pH and increased the turbidity and TSS downstream. Elevated organic matter and nutrients downstream are attributable to domestic discharge along the river. This study shows that the downstream river was affected by the discharge through the turbines, the spillway operations, and domestic waste. Therefore, all these factors should be taken into consideration in the downstream river management for the health of the aquatic organisms.


2006 ◽  
Vol 6 (5) ◽  
pp. 59-67 ◽  
Author(s):  
S. Shrestha ◽  
F. Kazama

Different multivariate statistical techniques were used to evaluate temporal and spatial variations of surface water-quality of Fuji river basin using data sets of 8 years monitoring at 13 different sites. The hierarchical cluster analysis grouped thirteen sampling sites into three clusters i.e. relatively less polluted (LP), medium polluted (MP) and highly polluted (HP) sites based on the similarity of water quality characteristics. The principal component analysis/factor analysis indicated that the parameters responsible for water quality variations are mainly related to discharge and temperature (natural), organic pollution (point sources) in LP areas; organic pollution (point sources) and nutrients (non point sources) in MP areas; and organic pollution and nutrients (point sources) in HP areas. The discriminant analysis showed that six water quality parameters (discharge, temperature, dissolved oxygen, biochemical oxygen demand, electrical conductivity and nitrate nitrogen) account for most of the expected temporal variations whereas seven water quality parameters (discharge, temperature, biochemical oxygen demand, pH, electrical conductivity, nitrate nitrogen and ammonical nitrogen) account for most of the expected spatial variations in surface water quality of Fuji river basin.


2011 ◽  
Vol 64 (5) ◽  
pp. 1186-1193 ◽  
Author(s):  
Ritesh Vijay ◽  
Swapnil R. Kamble ◽  
S. S. Dhage ◽  
R. A. Sohony ◽  
S. R. Wate

The water quality of seafronts and beaches of Mumbai is under pressure and deteriorating due to discharge of partially treated sewage and wastewater through point and nonpoint sources. The objective of the study was to assess the water quality and to correlate physico-chemical and bacteriological parameters for establishing relationship, association and dependence on each other. The water quality parameters were selected as per SW II standards specified by Central Pollution Control Board, India and nutrient parameters as strong indicators of sewage pollution. Box and whisker plots were generated for evaluating spatio temporal variation of water quality which suggest influence of organic pollution mostly at Mahim and Dadar in the form of outliers and extremes. Pearson's correlations were estimated between parameters and found significant correlation with each other indicating influence of sewage on water quality. The water quality of beaches and seafronts were found unsafe for recreational purposes. The study suggested that designated water quality can be achieved by restricting nonpoint source through improvement in wastewater collection systems, appropriate level of treatment and proper disposal.


Author(s):  
Banu Kutlu ◽  
Burcu Demir

Phytoplankton distribution and physico-chemical parameters in two stations in Munzur River were determined in the study carried out monthly between February 2015 and January 2016. According to water quality regulation of the supreme, while quality of water is first class property for temperature, pH, oxygen, ammonium nitrate. It is class feature. Also II. The station is in danger of organic pollution due to domestic waste. When the phytoplankton distribution in the region is examined; 84 taxa belonging phytoplankton Chlorophyta (6), Bacillariophyta (54), Cyanobacteria (15), Rhodophyta (1), Ochrophyta (1), Euglenophyta (2), Charophyta (3), Miozoa (2) were detected. In terms of organisms in the phytoplankton Bacillariophyta division was dominant and Cyanobacteria division was subdominant in the two stations. In the phytoplankton, Ulnaria ulna from Bacillariophyta, Nitzschia palea, Bacillaria paradoxa ,Encyonema sp., Navicula sp. and Nitzschia acicularis were mostly found. Lyngbya sp., Spirulina labyrinthiformis, Oscillatoria labyrinthiformis and Oscillatoria mougeotii species beloning to cyanobacteria match to second place in the terms of importance. Chlorophyta, Charophyta and Euglenophyta have not reached important numbers.


Author(s):  
Yaroslav Ilchyshyn

Specifics of the watercourses research in Ukrainian Carpathian Mountains is in developing and using the most appropriate research methods. This will objectively and comprehensively assess the quality situation of water objects. Were reviewed and analyzed different methodological aspects of water quality researching. The use of bioindication methods that are an integral and necessary part of researching the current situations and changes in water (river) ecosystems of mountain regions is substantiated. The methods were used in long-term and comprehensive research of river Prut and the article represents a summary of the results. Argumentation of using this bioindication method in an integrated research of mountain rivers of the Ukrainian Carpathian Mountains is given. Key words: bioindication, monitoring, water quality, ecosystems, research methods, indices of quality.


2017 ◽  
Vol 4 (1) ◽  
pp. 14-20
Author(s):  
Henryk Marszałek ◽  
Michał Rysiukiewicz

Abstract Long-term regional emissions of air pollutants in the second half of the twentieth century led to strong changes in the quality of surface and groundwater in the Karkonosze Mts. As a result, in the most valuable natural parts of these mountains, protected in the area of the Karkonosze National Park, there was strong deforestation, which assumed the size of an ecological disaster. The various protective activities introduced at the beginning of the 1990s led to the improvement not only of the water quality, but also other ecosystems. Based on the chemical analyses of water sampled in 40 points located in the whole Park, the current state of water quality was assessed. Concentrations of some microelements were higher only in few points compared to the drinking water quality standards, which indicates a significant improvement in water quality.


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