scholarly journals Aquatic Macro-invertebrates as Bio-indicators: An Approach for Wetland Water Quality Assessment of Rampur Ghol, Chitwan, Nepal

2015 ◽  
Vol 19 (2) ◽  
pp. 58-64
Author(s):  
Birendra Gautam ◽  
Rejina Maskey ◽  
Ramesh Prasad Sapkota ◽  
Dharma Raj Dangol
Keyword(s):  
Water Quality ◽  
Rainy Season ◽  
Diversity Index ◽  
Water Quality Assessment ◽  
Class Ii ◽  
Dry Season ◽  
Class Iii ◽  
Quality Class ◽  
Evenness Index ◽  
Index Value

The present research was conducted to study seasonal limnological parameters and record composition pattern of aquatic macro-invertebrates of the Rampur Ghol. GRS-BIOS/ASPT index was used to calculate the water quality class, Shannon Weiner diversity index (H’) and Piélou evenness index (e) were used to determine taxa richness of the macroinvertebrates. Altogether 281 individuals of 14 families and 313 individuals of 18 families were recorded in dry season and rainy season, respectively. Similarly, diversity index and evenness index values were recorded 0.98 and 0.85 in dry season; 1.075 and 0.86 in rainy season. On the basis of different aquatic macro-invertebrates, GRS-BIOS/ASPT Index value of four sampling sites fall in class II (moderately polluted), four sampling sites belong to water quality class IIIII (critically polluted) and remaining two sampling sites belong to water quality class III (heavily polluted). Similarly, in rainy season seven sites fall in water quality class II (moderately polluted) and three sampling sites belong to water quality class II-III (critically polluted).Journal of Institute of Science and Technology, 2014, 19(2): 58-64

scholarly journals Phytoplankton Community Investigation and Water Quality Assessment of M River in winter in Shijiazhuang City

2021 ◽  
Vol 267 ◽  
pp. 01035
Author(s):  
Ziqi Zhang ◽  
Lei Yang ◽  
Dongxu Han ◽  
Hongyan Shen
Keyword(s):  
Water Quality ◽  
Species Diversity ◽  
Water Body ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Water Quality Assessment ◽  
Species Diversity Index ◽  
Wiener Diversity Index ◽  
Eutrophic Water ◽  
Evenness Index

An investigation of phytoplankton community and water quality for M River was conducted in December 2019.The results showed that 38 species of phytoplankton belonging to 6 phyla and 26 genera were collected. Among them, Bacillariophyta is the richest species, which accounted for 34.21%, followed by Cyanophyta with 26.32% and Chlorophyta with 28.95%. The density of phytoplankton was 63.0*106 inds/L which indicated as eutrophic water body. The highest density was Bacillariophyta, accounting for 51.03%. The Shannon-Wiener diversity index (H’) varied from 1.34 to 2.24, the Margalef Species diversity index (d) varied from 2.71 to 3.85, and the Pielou evenness index (J) varied from 0.38 to 0.67. According to the integrative analysis results of H’, d and J, M River water quality belongs to oligo-polluted, but individual sites belong to meso-polluted.

scholarly journals Water Quality Assessment on Lake A at Universiti Sultan Zainal Abidin (UniSZA) Besut Campus

2021 ◽  
Vol 12 (1S) ◽  
pp. 173-183
Author(s):  
Mohamad Afif Hamdi Mohamad Sobri ◽  
Saiful Iskandar Khalit ◽  
Syazreen Syima Sharifuddin
Keyword(s):  
Water Quality ◽  
Water Quality Assessment ◽  
Class Ii ◽  
Quality Standard ◽  
Quality Parameters ◽  
Vital Role ◽  
The Body ◽  
Ex Situ ◽  
Class Iii ◽  
Body Contact

Water is an essential nutrient in the human body and it plays a vital role. Water is required to work in every system in the body, from cells and tissues to vital organs. About 70% of human-used freshwater goes to cultivation. The study aimed to assess water quality and identify the water category of Besut Campus Lake A. Water Quality Index (WQI) related to this study because it is standard used to classify the class of the water body. Water sampling was done at three sampling stations in two different locations and were sampled from February 2021 until March 2021. According to HACH and American Public Health Associations (APHA) methods, ten water quality parameters were analysed based on in situ and ex situ analysis. The values of pH, TDS, Temp, TSS and AN had been classified under Class I referred to National Water Quality Standard (NWQS). At the same time, DO and BOD were classified under Class II. And COD had been classified under Class III according to NWQS classification. Based on WQI, the water quality status in Campus Besut Lake was classified under Class II with a value of 85.742. It had been considered as Clean which is suitable for recreational activities and safe for body contact as well.

scholarly journals Water quality in forests small retention reservoirs in southern Poland – case study

2018 ◽  
Vol 50 (1) ◽  
pp. 3-17
Author(s):  
Mirosław Wiatkowski ◽  
Czesława Rosik-Dulewska ◽  
Daria Nikel ◽  
Urszula Karwaczyńska
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Water Retention ◽  
Seasonal Fluctuation ◽  
Water Quality Assessment ◽  
Class Ii ◽  
Ammonia Nitrogen ◽  
Electrolytic Conductivity ◽  
Quality Class ◽  
Southern Poland

Abstract This paper provides an analysis of water quality in three newly constructed small water retention reservoirs (Rudziczka, Niemysłowice I and Paciorkowy) located in forested areas of the forest district Prudnik in the Opolskie Province (southern Poland). The main purpose of these reservoirs is not only water retention, but also flood safety, fire protection, recreation and ecology. This paper presents the results of research carried out in December 2014 and May 2015. The assessment of water quality was performed in accordance with the applicable provisions on water quality assessment. Moreover, an assessment of eutrophication of water and of the usability of water in reservoirs is given (an analysis of suitability of water as a fish habitat). The research shows that the investigated waters are of quality class I in terms of the values of electrolytic conductivity, nitrates, nitrites, dissolved oxygen CODMn, calcium, magnesium and general hardness. In terms of the temperature (the Rudziczka reservoir), and the content of ammonia and phosphates they were of quality class II. The reaction, BOD5 and sulphates and chlorides content exceeded the threshold values for class II. It was also found that the investigated waters are not eutrophic. Based on the indicators such as reaction, dissolved oxygen, ammonia nitrogen and temperature, the waters in all the reservoirs except for Rudziczka met the quality requirements for habitats of salmonids and cyprinids. The living conditions for fish are deteriorated most by the increased levels of BOD5 and of nitrites in the Rudziczka and Paciorkowy reservoirs. The analysis of seasonal fluctuation in concentrations of water quality indicators in the investigated water bodies showed that in winter the concentrations of indicators were higher for nitrates, phosphates, electrolytic conductivity, calcium and general hardness and lower for temperature, reaction, nitrites, ammonia and dissolved oxygen. While the water in the Paciorkowy reservoir had the worst quality, the surface water in the Rudziczka reservoir had the best quality. The research initiated in small forests water retention reservoirs provides preliminary information on water quality and the importance of investigated reservoirs for increased retention.

A Phytoplanktonic Investigation and Water Quality Assessment about Tanjiang River

2011 ◽  
Vol 130-134 ◽  
pp. 3795-3798
Author(s):  
Hong Wei Wang ◽  
Wei Zhang ◽  
Kai Ming Li ◽  
Yong Gang Zhou ◽  
Hai Ming Xu ◽  
...  
Keyword(s):  
Water Quality ◽  
Quality Assessment ◽  
Green Algae ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Water Quality Assessment ◽  
Dominant Group ◽  
Evenness Index ◽  
Normal Water

A phytoplanktonic investigation of Tanjiang River was conducted in March 2011. 202 species of phytoplankton belonging to 86 genera and 7 phyla were identified altogether. Chlorphyta and Bacillariophyta which occupied 36.14% and 43.56% of the total number were the most, indicating that the green algae and diatom were the dominant group. Tanjiang River was β-meso-polluted to oligo-polluted judging from phytoplankton community while it was clean or light-polluted judging from Shannon-Weaver diversity index, Margalef diversity index and Pielou evenness index. Tanjiang River was light-polluted or oligo-polluted judging from the above indicators in normal water season, but there has been a trend to β-meso-polluted.

scholarly journals Characteristics of Surface Water Quality and Diversity of Zoobenthos in Water Bodies, An Giang Province, Vietnam

2021 ◽  
pp. 1-22
Author(s):  
Nguyen T. Giao ◽  
Huynh T.H. Nhien ◽  
Truong H. Dan
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Rainy Season ◽  
Diversity Index ◽  
Pearson Correlation ◽  
Dry Season ◽  
Water Bodies ◽  
Average Score ◽  
Wet Season ◽  
Wiener Diversity Index

The use of zoobenthos to evaluate water quality has gained considerable interest due to its low cost and environmental friendliness. This study analyzed water and zoobenthos samples at 13 sites in the water bodies in An Giang province in the rainy season (on March) and dry season (on September) in 2018. The results showed that the surface water was contaminated by organic matters, suspended solids and coliforms. There was occurrence of 28 species of zoobenthos divided into five classes including Oligochaeta, Polychaeta, Insecta, Gastropoda, and Bivalvia in which Bivalvia was the most diverse class accounting for 75%. The densities of zoobenthos in the dry and wet season were from 30 divided into three clusters for the dry season and six clusters for the rainy season indicating seasonal variation of zoobenthos composition possibly due to variance of water and sediment characteristics. The results of Pearson correlation indicated that the composition of zoobenthos was strongly correlated with temperature, pH, N-NH4+ and N-NO3-. Using water quality index (WQI), Shannon-Wiener diversity index (H’) and associated average score per taxon (ASPT) for water quality assessment revealed that water quality ranges from medium (from α to β- mesosaprobe) to heavy pollution (Polysaprobe). There was inconsistency between using physicochemicals and diversity index of zoobenthos for water quality identification leading to the use of zoobenthos for water indication could result in misadjustment of water quality. Further study should investigate the relationship between zoobenthos and water quality in different ecological areas to better indicate role of zoobenthos in quick diagnose water quality.

scholarly journals Mapping of Water Quality as Aquaculture Media, Comparative Study on Three Rivers in Riau Province

2021 ◽  
Vol 934 (1) ◽  
pp. 012065
Author(s):  
Y Harjoyudanto ◽  
N Asiah
Keyword(s):  
Water Quality ◽  
Rainy Season ◽  
Quality Standards ◽  
Quality Standard ◽  
Dry Season ◽  
Quality Data ◽  
Survey Method ◽  
Class Iii ◽  
Water Quality Standards ◽  
Water Quality Standard

Abstract Kampar River, Siak River, and Rokan River have different watersheds, and the water from these rivers is not interconnected. The results of this study can be used as a basis for managing aquatic resources in the Kampar River, Siak River, and Rokan River, Riau Province, Indonesia. This research was conducted in April 2017 – March 2018. The collection and measurement of water quality for each river consisted of three stations which were carried out based on SNI through the survey method twice, namely in the dry season and rainy season. The observed water quality parameters include physical, chemical, and biological parameters. The results of the next analysis are calculated using the STORET method using a value system from the United State-Environmental Protection Agency (US-EPA) which is adjusted to the Class III Water Quality Standard based on PP. 22 of 2021. The results of the analysis of the rain index value in the highest dry season is a score of -44 on the Rokan River, classified as class D with a score of -31 heavily polluted. The STORET score in the Kampar River and Siak River obtained -24, each classified as Class C, is included in the moderately polluted category. Meanwhile, in the rainy season the pollution index with the same pattern is highest in the Rokan River -40, then Kampar River, and Siak River each -20. The water quality standard used in this study is class III because it still supports fish farming activities. Based on Government Regulation Number 22 of 2021 concerning water quality standards, class III is water whose designation can be used for freshwater fish aquaculture, animal husbandry, and gardens irrigation. The Storet method is carried out by collecting water quality data and measuring data from each water parameter compared to the value of class III water quality standards.

scholarly journals Mandibular Asymmetry in Different Occlusion Patterns

2007 ◽  
Vol 77 (5) ◽  
pp. 803-807 ◽  
Author(s):  
Omer Said Sezgin ◽  
Peruze Celenk ◽  
Selim Arici
Keyword(s):  
Class Ii ◽  
Asymmetry Index ◽  
Control Group ◽  
Class Iii ◽  
Mandibular Asymmetry ◽  
Normal Occlusion ◽  
Division 1 ◽  
Index Value ◽  
Age Range ◽  
Division 2

Abstract Objective: To investigate the effects of different occlusion types on the mandibular asymmetry in young individuals. Materials and Methods: Mandibular asymmetry measurements were performed on the panoramic radiographs of 189 subjects (104 females and 85 males; age range, 11–15 years), with different occlusion patterns. The subjects were divided into five groups according to the occlusion types, namely, Angle Class I (Cl I), Class II division 1 (Cl II/1), Class II division 2 (Cl II/2), Class III (Cl III), and normal occlusions. The Kruskal-Wallis test was used to determine the possible statistically significant differences between the groups for condyle, ramus, and condyle-plus-ramus asymmetry index measurements. Identified differences between groups were further analyzed using the Mann-Whitney U-test at the 95% confidence interval (P < .05). Results: There were no statistically significant differences between male and female subjects. The Kruskal-Wallis test showed that the occlusion type had a significant effect on the condylar asymmetry. In Cl II/1 cases, condylar asymmetry values were significantly different from the values of Cl II/2 and Cl III malocclusion and normal occlusion types. The normal occlusion control group was significantly different from those of Cl II/1 and the Cl I malocclusion groups. Conclusion: Cl II/1 malocclusion has a significant effect on the condylar asymmetry index when compared to Cl II/2 and Cl III malocclusion and normal occlusion types. However, the mean condylar asymmetry index value in Cl II/1 malocclusion was not different from Cl I malocclusion.

Kelimpahan dan Keanekaragaman Plankton Sebagai Bioindikator Kualitas Air di Perairan Pantai Sayung Kabupaten Demak Jawa Tengah

2021 ◽  
Vol 23 (1) ◽  
pp. 25-32
Author(s):  
Isnaini Nurul Maya Evita ◽  
Riche Hariyati ◽  
Jafron Wasiq Hidayat
Keyword(s):  
Water Quality ◽  
Diversity Index ◽  
Industrial Area ◽  
Parameter Analysis ◽  
Nitrate Content ◽  
Chemical Parameter ◽  
Pollution Levels ◽  
Physical Chemical ◽  
Sea Ranching ◽  
Index Value

Sayung coast is a area with a growing residential, sea ranching, and industrial area. Those aspects produce create waste that could harm the environment, directly or indirectly. Plankton is a biologic component that is used to indicate the changes of water quality in waters that has been polluted. These goals of this research are to know the water quality in Sayung coast area from the abundance of the plankton,  physical-chemical parameter of the water, and also the status of water saprobity. The samples are taken in July 2017 and April 2018, in Sayung coast waters, Demak. Plankton sampling and water from 5 sampling stasions are considered to represent the diversity of the plankton and water stability. Plankton is sampled using plankton net No.25, then preserved using 70% alcohol + 4% formaldehyde. The abiotic data measureted is nitrate content, temperature, pH, salinity, DO, and turbidity. Data analysis are done using Shannon Weiner’s diversity index (H’), diversty index (e), domination index (C), saprobic index. The result shows that there are 49 species of planktons are found, which are 38 fitoplankton, and 11 zooplankton. The highest group is Bacillariophyta which is 14,24%. The diversty index value of H’ 1,58 – 2,45; therefore the Sayung coast waters is catagorized as stable. The index value of e ranges from 0,64 – 1; index C values ranges from 0,08 – 0,22; and the saprobirity index value is in β-Meso/Polisaprobik to α-Mesosaprobik phase with a very light to very high pollution levels. The physical-chemical parameter analysis of Sayung coast waters in overall is still suitable to support plankton’s life.

scholarly journals Analysis of Gastropod Diversity as a Bioindicator of Waters in Situ Ciburuy Padalarang, West Bandung Regency, West Java, Indonesia

2021 ◽  
pp. 10-19
Author(s):  
Erwin Theofilius ◽  
Zahidah Hasan ◽  
Asep Agus Handaka ◽  
Herman Hamndani
Keyword(s):  
Water Quality ◽  
Species Diversity ◽  
Sampling Method ◽  
Diversity Index ◽  
Research Area ◽  
Survey Method ◽  
Gastropod Species ◽  
Evenness Index

This study conducted to determine the water quality of Situ Ciburuy based on the structure of the gastropod community as a bioindicator. The survey method used in this study based on collecting data directly at the research area (purpose sampling method).  For instance, species and density of gastropods were descriptively analyzed, using diversity index and evenes index. For instance, The findings showed that level of water quality in  Situ Ciburuy based on gastropods bioindicators was lightly polluted. That is indicated by the low to moderate diversity of gastropods, which ranges from 1.31-1.98. The Shannon evenness index (0,73-0.95) revealed low gastropod species diversity in Situ Ciburuy, indicating low evenness of gastropod in Situ Ciburuy.

scholarly journals Spatio-Temporal Variations of Hydrochemical and Microbial Characteristics in Karst Water in Samcheok, South Korea

Water ◽  
2020 ◽  
Vol 12 (12) ◽  
pp. 3407
Author(s):  
Han-Sun Ryu ◽  
Heejung Kim ◽  
Jin-Yong Lee ◽  
Jiwook Jang ◽  
Sangwook Park
Keyword(s):  
Water Quality ◽  
Rainy Season ◽  
Temporal Variations ◽  
Dry Season ◽  
Quality Analysis ◽  
Dominant Factor ◽  
Karst Water ◽  
Seasonal Characteristics ◽  
Microbial Characteristics ◽  
Spatio Temporal

This study analyzed the hydrochemical characteristics and microbial communities of karst water in Samcheok, Korea, and compared water quality results to identify the seasonal characteristics and hydrogeological connectivity of the study areas of Hamaengbang-ri, Gyogok-ri, Yeosam-ri, and the downtown area of Samcheok. Field survey and water quality analysis were performed in July 2019, February 2020, and April 2020. Hydrochemical analysis of karst water (groundwater and surface water) showed that most samples were comprised of Ca-HCO3 and that water–rock interactions were a dominant factor compared to precipitation and evaporation (crystallization). For seasonal characteristics, water–rock interactions appeared more active in the dry season than in the rainy season. Calcite weathering was dominant in the dry season, whereas dolomite weathering dominated the rainy season. Moreover, the saturation indexes for the dry and rainy seasons were less than and greater than 0, respectively, corresponding to an unsaturation (oversaturation) state; thus, white precipitate distributed in the study areas was deposited in the rainy season. Finally, as a result of analyzing the hydraulic characteristics between regions, hydrogeological similarities were identified between Hamaengbang-ri and Yeosam-ri, and between Gyogok-ri and downtown Samcheok, which suggested hydrogeological connectivity between each of the pairs.

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