scholarly journals Water quality assessments of the river Gorveshwari in Dinajpur, Bangladesh

2021 ◽  
Vol 33 (1) ◽  
pp. 119-128
Author(s):  
ZANNATUL FERDOUSHI ◽  
MD ABUL KALAM AZAD ◽  
MD. SHAMIM RAHMAN ◽  
MST NAHID AKTER
Keyword(s):  
Dissolved Oxygen ◽  
Water Temperature ◽  
Water Level ◽  
Anthropogenic Activities ◽  
Sampling Period ◽  
Total Dissolved Solids ◽  
Total Alkalinity ◽  
Dissolved Solids ◽  
Physico Chemical ◽  
Quality Assessments

A study was carried out to assess planktonic community with some physico-chemical parameters of the Gorveshwari river in Dinajpur district of Bangladesh. Fortnight water samplings were performed at four sites. Findings revealed that water temperature, water level and transparency were within the optimal ranges- 14.33-31.23°C, 1.38-3.97 m and 43.32- 88.67cm respectively. The values of dissolved oxygen, pH, total alkalinity and total dissolved solids were found to vary 7.16 -9.32 ppm, 6.37-8.93, 28.07- 39.56 ppm and 59.87-133.74 ppm in the four sampling sites respectively. From plankton analysis, 36 genera of plankton were identified of which 27 genera were phytoplankton groups and 9 genera were zooplankton. Among them, Chlorophyceae ranked the first position with highest abundance 3.11±0.12×103cells/L. Euglenophyceae was recorded as the minor group of phytoplankton both in number and density. On the other hand, abundance of Rotifera was found to be higher in number (0.95±0.04×103cells/L), while, Crustacean larvae was noticed as scarcer group throughout the study period. Moreover, from correlation analysis it was observed that the abundance of total phytoplankton and total plankton were negatively correlated with water temperature and transparency where positively correlated with water level, pH, dissolved oxygen, total dissolved solids and total alkalinity. This study concludes that the fish production suitability of Gorveshwari river is within productive range though some anthropogenic activities affecting the aquatic biodiversity were also observed throughout the sampling period.

scholarly journals Anthropogenic pollution impact on physico-chemical characteristics of Lake Kivu, Rwanda

2012 ◽  
Vol 12 (53) ◽  
pp. 6517-6536
Author(s):  
OJ Olapade ◽  
◽  
BO Omitoyin ◽  
Keyword(s):  
Dissolved Oxygen ◽  
Lake Water ◽  
Chemical Properties ◽  
Oxygen Demand ◽  
Total Dissolved Solids ◽  
Total Alkalinity ◽  
Dissolved Solids ◽  
Physico Chemical ◽  
Lake Kivu ◽  
The Mean

Anthropogenic activities such as industrial effluent, domestic and agricultural waste disposal constitute major sources of pollution in water. The effects of these pollutants on the physico- chemical properties of Lake Kivu, Rwanda were investigated at three locations (Gisenyi, Kibuye and Cyangugu) between February 2005 and December 2006. Water samples used for physico- chemical analysis were collected from 12 stratified points on the lake. Samples collected were analysed and interpreted using appropriate international procedures. The physico -chemical properties measured were temperature, conductivity, pH, transparency, salinity, total alkalinity, dissolved organic matter (DOM), total dissolved solids (TDS), dissolved oxygen (DO), biological oxygen demand (BOD), nitrate – nitrogen, phosphate – phosphorus and sulphate. Mean water temperature measured (24.7 + 0.58 o C) was highest in Kibuye and lowest (24.5 + 0.31 o C) in Cyan gugu. The lake water was moderately hard with mean total alkalinity values of 88.1 ± 1.63mgL -1 ; 79.7 ± 2.36mgL -1 and 81.0 ± 2.46mg L -1 recorded in Gisenyi, Kibuye and Cyangugu respectively; salty and alkaline with mean pH values of 8.87 ± 0.07 in Gisenyi; 8.86 ± 0.06 in Kibuye and 8.91 ± 0.06 in Cyangugu. Total dissolved solids (TDS) level in the lake was above the 500mg L -1 prescribed by WHO while the mean biochemical oxygen demand (BOD) reading was within the range for unpolluted or moderately polluted lake. Water from the lake showed mineralization with mean conductivity values ranging from 1058 - 1184μS cm -1 in Gisenyi; 1058 - 1147μS cm -1 in Kibuye and 1031 - 1116μS cm -1 in Cyangugu. The mean dissolved oxygen values were below the 5mgl -1 limit recommended by WHO for fresh water fish species. SO 4- -2 and NO 3 – N concentration in the lake water does not constitute any serious health risk to both man and the aquatic organisms it supports. However, there is the need to constantly monitor the lake water to mitigate any build up of the ions to a hazardous level.

scholarly journals Ashura beel in Dinajpur district: Limnological aspect

2017 ◽  
Vol 15 (1) ◽  
pp. 103-112
Author(s):  
Z Ferdoushi ◽  
Y Ara ◽  
T Khatun ◽  
KKU Ahmed
Keyword(s):  
Dissolved Oxygen ◽  
Water Temperature ◽  
Water Level ◽  
Quality Parameters ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Phosphorus Concentration ◽  
Physical Chemical ◽  
Temperature Water ◽  
Limnological Parameters

An investigation was carried out on the limnological aspects of Ashura beel at Dinajpur district in Bangladesh. Several limnological parameters were evaluated from March 2013 to October 2013 from three sampling sites namely Kajladoho, Burirdoho and Sonnasydoho. Physical, chemical and biological parameters were analyzed fortnightly both at the field level and departmental laboratory of Fisheries Management, Hajee Mohammad Danesh Science and Technology University, Dinajpur. Findings revealed that only water level in three sampling sites varied significantly. The ranges of water temperature, transparency, water level at three sampling sites were 24 to 35.50°C, 17 to 27.50 cm and 0.58 to 2.44 m, respectively. Moreover, the dissolved oxygen concentration, pH, total alkalinity, total hardness and phosphate-phosphorus concentration were also remained within optimum ranges. Thirty four genera were recorded where phytoplankton includes 29 genera belonging to four groups such as euglenophyceae, cyanophyceae, bacillariophyceae and chlorophyceae and five genera of zooplankton in the four groups namely copepoda, rotifera, cladocera and crustacean larvae. Phytoplankton was dominated by chlorophyceae and zooplankton dominated by copepoda. The abundance of phytoplankton was positively correlated with water temperature, water level, dissolved oxygen, alkalinity, hardness, pH, and phosphate-phosphorus. On the other hand, abundance of zooplankton negatively correlated with water temperature, transparency and water level. However, from the findings of this study suggested that the water quality parameters of the selected sites were found to be suitable for the survival of aquatic organism.J. Bangladesh Agril. Univ. 15(1): 103-112, January 2017

scholarly journals USE OF OVERALL INDEX OF POLLUTION AND WATER QUALITY INDEX TO ASSESS RANI POND AT AURANGABAD, BIHAR, INDIA

2020 ◽  
Vol 21 (supplement 1) ◽  
Author(s):  
Sunita K Sharma ◽  
Vikash K Ravi ◽  
Sandeep Kumar ◽  
Dina N Pandit
Keyword(s):  
Water Quality ◽  
Electrical Conductivity ◽  
Water Quality Index ◽  
Quality Index ◽  
Anthropogenic Activities ◽  
Oxygen Demand ◽  
Total Dissolved Solids ◽  
Total Alkalinity ◽  
Dissolved Solids ◽  
Overall Index Of Pollution

The present work was carried out to apply overall index of pollution and water quality index to assess status of Rani Pond, Aurangabad, Bihar, India which has been under pressure due to the increasing anthropogenic activities. Physicochemical parameters like water temperature, pH, electrical conductivity, dissolved oxygen, total alkalinity, hardness, total dissolved solids, biochemical oxygen demand chloride, fluoride and nitrate were analyzed using standard procedures. The values obtained were compared with the guidelines for drinking purpose suggested by BIS (2012). The result shows the higher concentration of electrical conductivity, hardness, total dissolved solids and fluoride beyond the permissible limit. Ten parameters were selected to derive the overall index of pollution and water quality index for the estimation of water potential. The range of 2.70-3.50 of overall index of pollution and 165.83- 224.58 of water quality index indicating that the water of Rani Pond is not fit for drinking including both human and animals. The implementation of overall index of pollution and water quality index is necessary for proper management of the Rani Pond and it will be a very helpful tool for the public and decision makers to evaluate the water quality of the Rani Pond for sustainable management.

Assessment of Physico-chemical Properties of Different Water Reservoirs of Barishal City, Bangladesh

2021 ◽  
Vol 1 (01) ◽  
pp. 15-20
Author(s):  
MD. MAHADIY HASAN ◽  
MD. ASHIKUR RAHMAN LASKAR ◽  
TAHIDUL ISLAM ◽  
TANIA SULTANA
Keyword(s):  
Water Temperature ◽  
Electric Conductivity ◽  
Chemical Properties ◽  
Total Dissolved Solids ◽  
Water Reservoirs ◽  
Dissolved Solids ◽  
Average Water Temperature ◽  
Physico Chemical ◽  
Average Water ◽  
The City

There are many man-made water reservoirs found in Barishal City. This study was aimed to assess the existing condition of physico-chemical properties of four different water reservoirs, namely Bibir Pukur (pond), Amtala Lake, Choumatha Lake and City Corporation Pond of Barishal City of Bangladesh. To evaluate the physico-chemical properties, the average of the parameters such as water temperature, total dissolved solids, electric conductivity (EC), pH, salinity, as well as depth, color, and transparency of water were analyzed. The highest average water temperature was found in the City Corporation Pond, which determined as 31.77±0.09 °C. Electric conductivity (ms/cm) and total dissolved solids (ppm) of Amtala Lake were 0.413 ±0.009 and 199±1.15. The highest average pH 7.88±0.01 and lowest salinity 140±1.73 were found in City Corporation Pond and Choumatha Lake respectively. The water depth of Bibir Pukur was 260.33± 13.98 cm which is the highest among the four water reservoirs. The highest values of dissolved oxygen and phosphate were 2.03±0.12 mg/l and 294.12±3.92 μg/l.

scholarly journals Investigation of Phytoplankton and Physico-chemical Parameters in Nursery, Growout and Broodstock Ponds

2013 ◽  
Vol 5 (3) ◽  
pp. 555-571
Author(s):  
M. I. Hossain ◽  
M. M. Alam ◽  
M. Alam ◽  
B. M. M. Kamal ◽  
S. M. Galib
Keyword(s):  
Dissolved Oxygen ◽  
Water Temperature ◽  
Cell Density ◽  
Ammonia Nitrogen ◽  
Total Alkalinity ◽  
Chemical Parameters ◽  
Positive Correlation ◽  
Nursery Pond ◽  
Physico Chemical ◽  
Total Phytoplankton

The study measures the relationship between physico-chemical variables with the cell density of phytoplankton in nursery, growout and broodstock ponds of fish. This study was conducted at Natore Government Fish Farm in Bangladesh from January to June, 2012. The observed physico-chemical variables like water temperature, transparency, dissolved oxygen, pH, ammonia-nitrogen, total alkalinity and total hardness were found within the standard ranges. Phytoplankton belonging to bacillariophyceae, chlorophyceae, cyanophyceae and euglenophyceae were found among the ponds but euglenophyceae with highest abundance was recorded in almost all the ponds. Total abundance of different groups of phytoplankton was recorded as mean (±SD) cell density (cell/l) (62.77±2.16)×104, (47.22±0.69)×104, and (77.12±3.42)×104 in nursery pond, growout pond and broodstock pond, respectively. Overall phytoplankton abundance was more in broodstock pond than in others. Total phytoplankton density has exhibited significantly positive correlation with dissolved oxygen (DO) and inverse relation with water temperature, pH, ammonia-nitrogen and total alkalinity in case of nursery pond. For growout pond, total phytoplankton density has exhibited significantly positive correlation with temperature and transparency, and significantly negative correlation with other physico-chemical characteristics. In case of broodstock pond, total phytoplankton density has no significant relationship with any physico-chemical variables of water.  Keywords: Nursery pond; Growout pond; Broodstock pond; Phytoplankton; Water quality, physico-chemical parameters  © 2013 JSR Publications. ISSN: 2070-0237 (Print); 2070-0245 (Online). All rights reserved.  doi: http://dx.doi.org/10.3329/jsr.v5i3.14886 J. Sci. Res. 5 (3), 555-571 (2013)

PHYSICO-CHEMICAL ASPECTS OF YAMUNA RIVER AT GOKUL BARRAGE, MATHURA (UP) INDIA

2017 ◽  
Vol 23 (2) ◽  
Author(s):  
AJAY KUMAR RAJAWAT ◽  
PRAVEEN KUMAR
Keyword(s):  
Water Samples ◽  
Suspended Solids ◽  
Total Dissolved Solids ◽  
Tolerance Limit ◽  
Chemical Condition ◽  
Yamuna River ◽  
Dissolved Solids ◽  
Time Period ◽  
Physico Chemical ◽  
Almost All

An attempt has been made to study the Physico-chemical condition of water of Yamuna River at Gokul Barrage, Mathura, (UP). The time period of study was July 2015 to June 2016. Three water samples were selected from different sites in each month for study. The parameters studied were Temperature, Turbidity, pH, DO, BOD, COD, Total Dissolved Solids and Suspended Solids. Almost all the parameters were found above the tolerance limit.

scholarly journals Mollusks (Gastropoda and Bivalvia) of the Multiple-Use Reserve Martín García Island, Río de la Plata River: biodiversity and ecology

2012 ◽  
Vol 72 (1) ◽  
pp. 121-130 ◽  
Author(s):  
II César ◽  
SM Martín ◽  
A Rumi ◽  
M Tassara
Keyword(s):  
Dissolved Oxygen ◽  
Water Temperature ◽  
Environmental Variables ◽  
Sampling Period ◽  
Pomacea Canaliculata ◽  
Rio De La Plata ◽  
Multiple Use ◽  
Río De La Plata ◽  
Oxygen Conductivity ◽  
La Plata

The Island of Martin Garcia is located in the Upper Río de la Plata, to the south of mouth the Uruguay River. The aim of the present study was to analyse the biodiversity of the island freshwater mollusks and their relationships to environmental variables. Twelve sampling sites were selected, five were along the littoral section of the island and seven were Inland ponds. Seven major environmental variables were measured: water and air temperature, percentage of oxygen saturation, dissolved oxygen, electrical conductivity, total dissolved solids and pH. Twenty-seven mollusk species were found, Antillorbis nordestensis, Biomphalaria tenagophila tenagophila , B. t. guaibensis, B. straminea, B. peregrina, Drepanotrema kermatoides, D. cimex, D. depressissimum, Chilina fluminea, C. rushii, C. megastoma, Uncancylus concentricus, Hebetancylus moricandi, Stenophysa marmorata, Heleobia piscium, H. parchappii, Potamolithus agapetus, P. buschii, P. lapidum, Pomacea canaliculata, P. megastoma, Asolene platae, Corbicula fluminea, Eupera platensis, Pisidium sterkianum, P. taraguyense and Limnoperna fortunei. UPGMA clustering of species based on their occurrence in different ecological conditions revealed two main species groups. The Canonical Correspondence Analysis suggests that the species distribution is related to the physico-chemical condition of water. Axis two of the ordination diagram displayed the approximately 95.6% of the correlation between species and environmental variables. Dissolved oxygen, conductivity, water temperature and pH showed the highest fluctuations during the sampling period. The species richness (S) showed relationships mainly with water temperature and conductivity. The biodiversity of the gastropods and bivalves from Martín García Island amounts to up to 26 species. Among the Gastropoda, the Planorbidae family made the most sizeable contribution. The Lithogliphidae P. agapetus (26.28%) and P. buschii (9.50%) showed the highest relative frequencies of occurrence within the littoral environments, while the Planorbidae D. cimex (23.83%) and D. kermatoides (11.59%) likewise did so in the inland ponds.

Impact of net pen aquaculture on lake water quality

2003 ◽  
Vol 47 (12) ◽  
pp. 293-300 ◽  
Author(s):  
J. Veenstra ◽  
S. Nolen ◽  
J. Carroll ◽  
C. Ruiz
Keyword(s):  
Water Quality ◽  
Organic Carbon ◽  
Dissolved Oxygen ◽  
Water Temperature ◽  
Ictalurus Punctatus ◽  
Oxygen Demand ◽  
Total Alkalinity ◽  
Total Hardness ◽  
Army Corps ◽  
Lake Water Quality

A 3-year study was conducted by the U.S. Army Corps of Engineers assessing water quality related impacts of aquaculture of 250,000 channel catfish (Ictalurus punctatus) in floating net pens in the Rock Creek Arm of Lake Texoma, Oklahoma/Texas. Five large nylon nets suspended from a floating framework of galvanized metal anchored in open water 100 m offshore made up the net pens with fish stocking densities varying from 88 to 219 fish/m3. Water quality sampling was conducted biweekly from April to September and monthly from October to March at three locations. On all sampling dates field measurements of water temperature, pH, dissolved oxygen, and conductivity were recorded at 1 m depth intervals and water samples were collected at a depth of 0.5 m and near the bottom of the water column at each site. Sample analyses included: total alkalinity, total hardness, turbidity, chloride, sulfate, orthophosphate, total phosphorus, nitrate-N, nitrite-N, total Kjeldahl nitrogen, total organic carbon, dissolved organic carbon, biochemical oxygen demand, and chlorophyll a. The results showed statistically significant decreases in water temperature and dissolved oxygen and significant increases in field conductivity in surface waters near the net pens relative to other sampling sites. The most dramatic water quality effect observed during the study was decrease in dissolved oxygen levels near the net pens following lake turnover in the second year.

scholarly journals Cladoceran abundance in relation to water quality parameters of Chakki Talab, Bodhan, Telangana

2018 ◽  
Vol 8 (01) ◽  
Author(s):  
Vasudha Lingampally ◽  
V.R. Solanki ◽  
D. L. Anuradha ◽  
Sabita Raja
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Oxygen Demand ◽  
Total Dissolved Solids ◽  
Quality Parameters ◽  
Biological Oxygen Demand ◽  
Water Quality Parameters ◽  
Total Alkalinity ◽  
Total Hardness ◽  
One Year

In the present study an attempt has been made to evaluate water quality and related density of Cladocerans for a period of one year, October 2015 to September 2016. Water quality parameters such as temperature, PH, total dissolved solids, dissolved oxygen, biological oxygen demand, total alkalinity, total hardness, chlorides, phosphates, and nitrates are presented here to relate with the abundance of Cladocerans. The Cladoceran abundance reflects the eutrophic nature of the Chakki talab.

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