scholarly journals Water Quality Variation while Transporting Hypselobarbus Kurali Anesthetized with 2- Phenoxy Ethanol

2017 ◽  
Vol 7 (1) ◽  
pp. 1
Author(s):  
Sherly Williams E
Keyword(s):  
Water Quality ◽  
Biological Activities ◽  
Quality Parameters ◽  
Average Weight ◽  
Poor Survival ◽  
Quality Of Control ◽  
Water Quality Variation ◽  
Brood Fish ◽  
Quality Variation

<div><p><em>Transportation of fishes from study site to the laboratory needs lot of care as the fish is very sensitive to even minor changes in the surroundings. The prime response from the fishes was random running and hitting its head and body against the medium in which it is transported. Secondly it was found excreting a lot of ammonia waste which will degrade the water quality and there by lead to poor survival chances. Anesthetized transportation thus forms a boon in aquaculture. The fish meant for transportation is anesthetized hence it will not run and also will not eliminate wastes. A solution of 1 ml of 2- Phenoxy ethanol in 5 l of water was prepared and used for the transportation trials which were conducted in heavy duty poly bags.  The average weight of brood fish was 200 g.  Five numbers of brood fishes were accommodated in a bag for the transportation for 2 hours. Water quality parameters like temperature, pH, dissolved oxygen, ammonia and alkalinity were assessed following standard methods using water quantity analyzing probe (Eutech, S-660).  The studies were carried out repeatedly four times during transportation so as to confirm results. The results have shown that as time proceeds the water quality of control changed drastically whereas the experiment retained the change in water quality towards a standard range throughout the transportation trial. As the fishes are anesthetized the biological activities will slow down which result in lesser consumption of oxygen, low excretory waste and so on. So anesthetizing H.kurali with 2- phenoxy ethanol is advisable. </em></p></div>

scholarly journals Studi Adaptasi Ikan Seluang (Rasbora agryotaenia) Berdasarkan Tahap Domestikasi dari Perairan Sebangau

2018 ◽  
Vol 5 (1) ◽  
pp. 36-44
Author(s):  
Tania Serezova Augusta
Keyword(s):  
Water Quality ◽  
Quality Measurement ◽  
Quality Parameters ◽  
Mean Value ◽  
Average Weight ◽  
Feed Conversion ◽  
Cultivation System ◽  
Commercial Feed ◽  
The Mean

This study aims to determine the adaptation of Seluang fish (Rasbora agryotaenia) based on the domestication stage of Sebangau waters. This research started in January until February 2018. The research method used is a survey and experimental observation. The size of the tarpaulin pond used for domestication is 2 x 3 m, with a water height of 30 cm. The number of fish sampled is 200 heads. Feed is given as much as 5% of the total weight of the fish kept, feeding done twice a day (morning and afternoon). This domestication activity is still not perfect, because only part of the life cycle of fish (Rasbora agryotaenia) can be done in the cultivation system (survival and eating commercial feed). During maintenance activities, the amount of feed used was 63.840 g with the final weight of the fish was 16.905 g. Survival rate (SR) of fish (Rasbora agryotaenia) during maintenance was 73.5% and deaths 26.5%. From the calculation is known that the Feed Conversion Ratio (FCR) for fish (Rasbora agryotaenia) 2.8. This domestication stage starts with the preparation of maintenance pools, fishing in nature, sorting, distribution, and maintenance. During maintenance, five samples of sample fish were taken and five times the pool water quality measurement. From the five weights of the sample fish, it is known that the average weight of the fish is kept, I = 0.003 g, II = 0.042 g, III = 0.051 g, IV = 0.082 g, V = 0.115 g. From the measurement of water quality of tarpaulin ponds, it is known that the mean value of water quality parameters, for DO ranges from 1.5 to 8.8 mg / L, the pH ranges from 5.5 to 7.2 and temperatures range from 27.4 to 27.7 0C.

scholarly journals DOMESTIKASI IKAN KAPAR (Belontia hasselti) YANG TERTANGKAP DI SUNGAI SEBANGAU

2021 ◽  
Vol 46 (3) ◽  
pp. 363
Author(s):  
Frid Agustinus ◽  
Infa Minggawati
Keyword(s):  
Water Quality ◽  
Survival Rate ◽  
Early Stage ◽  
Quality Parameters ◽  
Average Weight ◽  
Growth And Survival ◽  
Weight Growth ◽  
Absolute Length ◽  
The Absolute

The Kapar fish  (Belontia hasselti) is the consumption fish that is obtained only on wild caught. Not yet succeeded in culture this fish, so domestication is needed as an early stage of the aquaculture. The purpose of this research was to knowning the stages of domestication of Kapar fish caught from the Sebangau river in the process of adaptation to new habitats in semi-permanent ponds which is seen from the observation of water quality as well as the growth and survival rate of the Kapar fish. Environmental adaptation for culture fish is the key to successful domestication. Observations of water quality in the fish's wild habitat with the quality of the water where the fish adapt in the pond are slightly different, especially the DO and pH values, but the water quality is still within the tolerance of the Kapar fish to live. The water quality parameters show the temperature in the range 27-29 °C, DO in the range 3-4.2 mg.L-1, and pH in the range 7-7.4. The growth in length and weight during the research showed that the fish were able to adapt feeding. The length and an average weight of Kapar fish until the research were 12.1 cm in length and 31.4 g of weight and it was known that during the research period the absolute length growth of Kapar fish was 1 cm and the absolute weight growth was 8 g . Results of data analysis carried out during the research that the survival rate of Kapar fish is 83 %.      

scholarly journals Assessment of Water Quality of Odor River, Anambra State

2020 ◽  
pp. 41-48
Author(s):  
Godspower Onyekachukwu Ekwueme ◽  
Charles Okechukwu Aronu ◽  
Nkechi Udochukwu Otty
Keyword(s):  
Water Quality ◽  
Total Coliform ◽  
Total Dissolved Solids ◽  
Total Hardness ◽  
Anambra State ◽  
Sulphate Chloride ◽  
Water Quality Variation ◽  
Quality Variation ◽  
Bacteriological Parameters

Aim: This study examined the physicochemical and bacteriological parameters of Odor River in Orumba North, Anambra State. The parameters considered were pH, turbidity, temperature, Dissolved Oxygen (DO), Alkalinity, total hardness, Sulphate ( ), Chloride, Calcium ( ) hardness, Magnesium ( ) hardness, Iron (Fe), Nitrate  (NO3-), Conductivity, Total Dissolved Solids (TDS), Total coliform and Escherichia coli (E. coli).  The objectives of the study were to assess the similarities that exist amongst the physicochemical and bacteriological parameters of Odor River in Orumba North, Anambra State. Also, to test whether water from Odor river is safe for drinking by the people of Orumba North and its environs. Methodology: The Cluster analysis and the one-sample T-test method were used to analyze the data obtained for this study. Results: The findings of the study revealed that the parameters can be grouped in two groups as follows: group A consists of pH, turbidity, temperature, Dissolved Oxygen (DO), Alkalinity, total hardness, Sulphate ( ), Chloride, Calcium ( ) hardness, Magnesium ( ) hardness, Iron (Fe), Nitrate  (NO3-), and Conductivity while group B consists of Total Dissolved Solids (TDS), Total coliform and E.coli. The physicochemical parameters were found to impact significantly on the variation of the water quality at 5% significant level and their measures did not exceed the World Health Organization (WHO) standard. Further findings revealed that the bacteriological parameters such as the Escherichia Coli and Total Coliform do not significantly impact on the water quality variation of the river and their measures do not exceed the WHO standard.   Conclusion: The physicochemical and bacteriological parameters of Odor River were found to be within the WHO Standard. However, the physicochemical parameters were found to impact on the water quality variation of the river while the bacteriological parameters do not impact on the variation of the water quality of the river. The implication of the physicochemical and bacteriological parameters not exceeding the WHO standard indicates no risk for the users of the river. Hence, water from Odor River is safe for human consumption and agricultural purposes.

Environmental Impact Evaluation of Istanbul Wastewater Treatment and Marine Disposal Systems

1992 ◽  
Vol 25 (9) ◽  
pp. 85-92 ◽  
Author(s):  
I. Ozturk ◽  
T. Zambal ◽  
A. Samsunlu ◽  
E. Göknel
Keyword(s):  
Water Quality ◽  
Wastewater Treatment ◽  
Environmental Impact ◽  
Quality Parameters ◽  
Sea Of Marmara ◽  
General Evaluation ◽  
Marine Outfall ◽  
Secondary Stage ◽  
Pre Treatment

Metropolitan Istanbul Wastewater Treatment System contains 14 marine outfalls, seven of which include secondary stage biological treatment processes. The others have only mechanical treatment units including bar screens and grit chambers. Only one mechanical pre-treatment and marine disposal system, Yenikapi plant, has been operated since 1988 among these 14 plants and six of them are ready for construction. In this paper, the environmental impact of Yenikapi pretreatment and marine disposal system on the water quality of the Bosphorus and the Sea of Marmara has been investigated. Long term water quality measurements which were performed in pre-and post-dischange applications have been evaluated. Water quality parameters including pH, DO, BODs, TKN, P and total coliforms were measured at various sampling stations around the discharge points. A general evaluation of marine outfall systems to be constructed in the scope of Istanbul wastewater treatment project, on the water quality of the Sea of Marmara and the Bosphorus has been presented.

First flush effects in an urban catchment area in Aalborg

1998 ◽  
Vol 37 (1) ◽  
pp. 251-257 ◽  
Author(s):  
Torben Larsen ◽  
Kirsten Broch ◽  
Margit Riis Andersen
Keyword(s):  
Water Quality ◽  
Catchment Area ◽  
Quality Parameters ◽  
Average Concentration ◽  
First Flush ◽  
Storm Events ◽  
Urban Catchment ◽  
Discharge Measurements ◽  
Quality Measurements

The paper describes the results of measurements from a 2 year period on a 95 hectare urban catchment in Aalborg, Denmark. The results of the rain/discharge measurements include 160 storm events corresponding to an accumulated rain depth of totally 753 mm. The water quality measurements include 15 events with time series of concentration of SS, COD, BOD, total nitrogen and total phosphorus. The quality parameters showed significant first flush effects. The paper discusses whether either the event average concentration or the accumulated event mass is the most appropriate way to characterize the quality of the outflow.

scholarly journals Tap Water Quality: Seasonal User Surveys in Poland

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3841
Author(s):  
Józef Ober ◽  
Janusz Karwot
Keyword(s):  
Water Quality ◽  
World Literature ◽  
Mixed Methods Research ◽  
Tap Water ◽  
Quality Parameters ◽  
Subjective Perception ◽  
Quality Of Water ◽  
Profit Analysis ◽  
Tap Water Quality

Security of supply of water, which meets the quality parameters specified in applicable standards, is now the basis for the functioning of most societies. In addition to climatic, biological, chemical, and physical hazards, it is worth paying attention to consumers’ subjective perception of the quality of tap water supplied in the area of Poland. The article discusses various activities related to water resources management and analyses the results of an evaluation of selected quality parameters of tap water in Poland. A novelty on a European scale here is an examination of the evaluation of these parameters based on potential seasonal differences (spring, summer, autumn, winter). For the first time in the world literature, PROFIT analysis was used to evaluate selected parameters of tap water quality. The aim of the article was to present a model for the evaluation of the parameters of tap water supplied in different seasons of the year in Poland. Due to the complexity of the research aspects, a mixed-methods research procedure was used in which a literature review was combined with a survey and statistical analysis. For the purpose of the survey, an original survey questionnaire called “Survey of customer opinions on selected parameters of tap water supplied in Poland” was developed especially for this study. The conducted research confirmed the adopted hypothesis that the results of evaluation of selected tap water parameters vary depending on the period (spring, summer, autumn, winter) in Poland. The model developed by means of PROFIT analysis makes it possible to highlight to water suppliers the specific quality parameters in particular seasons of the year (spring, summer, autumn, winter), which may improve the quality of water supplied in Poland and thus, in the long-term perspective, increase the level of satisfaction of water recipients and confidence in drinking tap water in Poland.

Impact of Lockdown on Health of the Yamuna river at Delhi Stretch, India

2021 ◽  
Vol 27 (1) ◽  
Author(s):  
MANOJ KUMAR SHUKLA
Keyword(s):  
Water Quality ◽  
Industrial Waste ◽  
Quality Parameters ◽  
Domestic Sewage ◽  
Pollution Monitoring ◽  
Yamuna River ◽  
Industrial Pollutants ◽  
The Impact ◽  
Positive Effect

Present study points out the impact of Lockdown on the health of the Yamuna river at Delhi stretch by comparing prelockdown and Post-lockdown period by studying the reports of pollution monitoring agencies. Delhi segment of the Yamuna is highly polluted, where alongwith domestic sewage a huge quantity of industrial waste is being discharged continuously without proper treatment. Pre lockdown (March 2020) water quality parameters at three sampling stations named as Palla, Nizammuddin Bridge and Okhla barrage U/s in Delhi were, pH were 8.7, 7.3 and 7.2, DO were 17.1 mg/L, not detected in later two sites, BOD were 7.9 mg/L, 57 mg/L and 27 mg/L and COD were 28 mg/L, 90 mg/L and 95 mg/L respectively and postlockdown period (April 2020) the pH was 7.8, 7.2 and 7.1, DO was 8.3 mg/L, 2.4 mg/L and 1.2 mg/L BOD was 2 mg/L, 5.6 mg/ L and 6.1 mg/L and COD were 6 mg/L, 16 mg/L and 18 mg/L respectively. The study of these parameters at three sampling stations reveals that the lack of industrial pollutants discharging due to nationwide lockdown for COVID-19 pandemic had positive effect on water quality of this river. Water quality could be maintained by planned establishment of industries and setup of ETP with without gap between generation and treatment.

Characteristics of physical water quality variation under heat storage in closed saline water aquaculture ponds in the tropics

2021 ◽  
Author(s):  
Akinori Ozaki ◽  
Panitan Kaewjantawee ◽  
Nguyen Van Thinh ◽  
Masaru Matsumoto ◽  
Masayoshi Harada ◽  
...  
Keyword(s):  
Water Quality ◽  
Heat Storage ◽  
Saline Water ◽  
Aquaculture Ponds ◽  
Water Quality Variation ◽  
The Tropics ◽  
Quality Variation

scholarly journals Investigation of Water Quality Parameters from Ramna, Crescent and Hatirjheel Lakes in Dhaka City

2015 ◽  
Vol 8 (1) ◽  
pp. 1-5 ◽  
Author(s):  
MS Islam ◽  
M Rehnuma ◽  
SS Tithi ◽  
MH Kabir ◽  
L Sarkar
Keyword(s):  
Water Quality ◽  
Lake Water ◽  
Public Awareness ◽  
Aquatic Organisms ◽  
Quality Parameters ◽  
Water Runoff ◽  
Dhaka City ◽  
Sound Environment ◽  
Surrounding Areas

The study was conducted to know the status of water quality of the Ramna, Crescent and Hatirjheel lakes in the Dhaka city. Water samples were collected from three different points of each lake and analyzed for various physicochemical parameters including temperature, pH, EC, TDS, DO, BOD, hardness, alkalinity, acidity during the period from November 2013 to April 2014. The mean temperature 22.54, 24.59 and 24.24°C; EC 15400, 282.00 and 618.27 ?Scm-1; TDS 85.38, 155.60 and 339.90 ppm; pH 7.73, 7.85 and 7.67; DO 3.51, 3.92 and 3.65 ppm; BOD 0.93, 0.73 and 3.15 ppm; hardness 95.00, 108.56 and 105.11 ppm; alkalinity 48.9, 120.7 and 249.1 ppm, and acidity 2.18, 2.67 and 2.05 ppm were investigated from Ramna, Crescent and Hatirjheel lakes, respectively. Lower concentration of DO was observed in all three lakes that severely harmed the aquatic organisms and degrade their habitat. The comparative study demonstrated that the concentration of BOD, EC, TDS, alkalinity and acidity of Hatirjheel Lake was higher than Ramna and Crescent lakes which indicated pollution of the lake water. The rain and storm water runoff, lack of awareness of people were responsible for the pollution of Ramna, Crescent and Hatirjheel lakes water. Connection of the sewerage line with the rain water collection channels and mixing of solid waste with lake water are the main reasons for pollution of Hatirjheel lake. Poor water quality of these lakes affects the ecosystem and aesthetic beauty negatively. To maintain the sound environment and healthy ecosystem of the lakes and the surrounding areas need proper management and monitoring and implementation of existing laws and regulations. Moreover public awareness is necessary otherwise it is hardly possible to maintain sound water quality of these three lakes.J. Environ. Sci. & Natural Resources, 8(1): 1-5 2015

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