scholarly journals The Limnological Effects of River Lesser-Zab on Tigris River, Iraq

2007 ◽  
Vol 4 (3) ◽  
pp. 452-457
Author(s):  
Baghdad Science Journal

The present study included the physico-chemical parameters of Lesser-Zab river and its effects on Tigris river. Monthly water samples were taken from the two rivers during January to October 1999.There were no signifcant difference in water temperatures. Both rivers were fresh to oligohalin, alkaline and very hard. Close values were determined in total suspended solids in both rivers with little increasing during rainfall period and high discharge. Water was well areated and over saturation was recorded in several occasions. Dissolved oxygen values of Tigris river were influenced by Lesser-Zab. Cations were more dominant than anions in both rivers. In Lesser-Zab, the anions were increased during spring season and declined in summer which their values influenced in Tigris river. The concentration of plant nutrients (NO2,NO3,PO4 and SiO2) were fluctuated during the study period in Lesser-Zab and their effects were cleared on Tigris river.N:P ratio values were indicated the deficiency of nitrogen in both rivers.

2020 ◽  
Vol 32 (1) ◽  
pp. 179-184
Author(s):  
NAJMUS SAKIB KHAN ◽  
MD SAIFUL ISLAM ◽  
JABER BIN ABDUL BARI ◽  
MD MOSTOFA KAMAL

The study focused on the monsoonal distribution of plankton in a rain fed partial lake inSonapur, Noakhali district, Bangladesh. Three sampling sites were chosen between Sonapur zero point andNoakhali Science and Technology University. Four groups of phytoplankton such as Chlorophyceae (11genera), Bacillariophyceae (6 genera), Cyanophyceae (6 genera) and Euglenophyceae (3 genera) andfour groups of zooplankton such as Rotifera (10 genera), Cladocera (3 genera), Copepode (2 genera) andCrustacea (2 genera) were identified. The lake was found to be organic polluted (Palmer’s algal pollutionindex value: 22.33). The average wet land zooplankton index (WZI) value of this lake was estimated 3.72means moderate water quality. During the sampling periods some important physico-chemical parameterslike temperature (29-30 ?C), pH (7.8-8.2), transparency (6.5-13.50 cm), free CO2 (8.00-12.00 mg/l), totalalkalinity (13.00-14.50 mg/l), ammonia (0.1-0.5 mg/l), nitrate (0.05-0.25 mg/l), nitrite (0.03-0.07),phosphate (0.1-0.9 mg/l), dissolved oxygen (2-3.5 mg/l) and total suspended solids (4.0×10-4-5.3×10-4mg/l) were also determined as supporting water quality statement.


2018 ◽  
Vol 7 (4.30) ◽  
pp. 94
Author(s):  
Nasir Shuaib ◽  
Maryati Mohammad ◽  
Hazel Monica Matias- Peralta ◽  
Mohd Saifullah Rusiman ◽  
Shuaibu Babaji Sanusi

Zooplankton was studied in Pulau Tinggi, Marine Park, Johor, Malaysia for their abundance and species diversity. Water samples were collected within three months, April, June and October 2015.Ten sampling stations were established during the study period. A total of 54 species of copepods from 29 genera and 22 families were identified. An average of 86.70 % copepods and 15.84% non-copepods were recorded among the zooplankton groups. The water quality parameters such as depth, dissolved oxygen, pH, temperature, turbidity, and salinity were measured in situ.  The present study was taken to observe the abundance and diversity of zooplankton in Pulau Tinggi, Johor. This research will be helpful for fisheries authorities and marine controlling departments. The effect of different physico-chemical parameters on the biomass and density of zooplankton will be discussed in the coming paper.


2015 ◽  
Vol 2 (2) ◽  
Author(s):  
Nuzhat Shafi ◽  
Javed Ayub ◽  
Tasleem Akhtar

The physico-chemical parameters and the fish parasites of the River Neelum were studied at three sampling sites, i.e., Pattika, Tali Mandi, and Domail. Water temperature and rate of flow of water were significantly higher at Domail than Pattika and Tali Mandi. ANOVA showed that dissolved oxygen, total suspended solids, inorganic suspended solids, and organic matter of the bottom mud kept on fluctuating and showed a significant difference between three selected sites. Although, these variables showed variations, they remained within tolerable limits set by WHO. Three species of potentially harmful parasites, i.e., Dactylogyrus vastator, Procamallanus laevionchus, and Argulus foliaceus were isolated from fish population of the River Neelum, however, these parasites do not pose any severe threats to general fish life


Author(s):  
Mathias Nzitiri Bwala

Irrigation is a dry season agricultural activity that was known to man for centuries. Agricultural runoff has been identified as the major nonpoint sources of pollution into surface waterbodies which changes the physico – chemical parameters thereby impacting on the biodiversity of such ecosystem. River Ngadda receives pollutants from the irrigational sites along the river bank. The study was aimed at assessing the impact of irrigation on fish biodiversity in river Ngadda, Maiduguri, Borno State, Nigeria. The objectives of the study were to determine the physico – chemical parameters and examine the fish biodiversity of the river. The river was divided into 4 sampling Stations. Water samples was collected biweekly for the period of 6 months from 4 sampling stations. The physico – chemical qualities (total nitrogen (TN), ammonium (NH4+), total phosphorus (TP), total organic carbon (TOC), total dissolved solids (TDS), turbidity (Tur) and total suspended solids (TSS) were determined using standard methods. Capture and recapture method was employed to determine the relative abundance of fish species using Lincoln index. The mean Total Nitrogen (TN) ranges from 5.02 mg/L – 8.31mg/L, mean ammonium (NH4+) ranges from 0.93mg/L – 2.01, mean Total phosphorous (TP) ranges from 0.07mg/L – 1.81mg/L. mean Total Organic Carbon (TOC) ranges 5.87mg/L – 7.45mg/L, mean Turbidity (Tur) ranges from 27mg/L – 31mg/L, mean Total Dissolved Solids (TDS) ranges 198NTU – 298NTU, mean Total Suspended Solids ranges from 34mg/L – 47mg/L and mean surface water Temperature ranges from 26°C – 28°C. A total of 4 families and 10 species of fishes were identified in the sampling stations.


2017 ◽  
Vol 23 (2) ◽  
Author(s):  
AJAY KUMAR RAJAWAT ◽  
PRAVEEN KUMAR

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.


2015 ◽  
Vol 41 (1) ◽  
pp. 13-19
Author(s):  
Kaniz Fatema ◽  
Wan Maznah Wan Omar ◽  
Mansor Mat Isa

Water quality in three different stations of Merbok estuary was investigated limnologically from October, 2010 to September, 2011. Water temperature, transparency and total suspended solids (TSS) varied from 27.45 - 30.450C, 7.5 - 120 cm and 10 -140 mg/l, respectively. Dissolved Oxygen (DO) concentration ranged from 1.22-10.8 mg/l, while salinity ranged from 3.5-35.00 ppt. pH and conductivity ranged from 6.35 - 8.25 and 40 - 380 ?S/cm, respectively. Kruskal Wallis H test shows that water quality parameters were significantly different among the sampling months and stations (p<0.05). This study revealed that DO, salinity, conductivity and transparency were higher in wet season and TSS was higher in dry season. On the other hand, temperature and pH did not follow any seasonal trends.Bangladesh J. Zool. 41(1): 13-19, 2013


2016 ◽  
Vol 3 (2) ◽  
pp. 67-72
Author(s):  
Md Tajul Islam ◽  
M Mahfuzur Rahman ◽  
Hassan Mahmud

Water quality assessment has been carried out in the Hakaluki Haor of greater Sylhet district during May, 2013 to February, 2014. Water samples were collected from 5 spots during 4 seasons and a total of 15 physico-chemical parameters were studied. Significant seasonal variation was observed in all seasons among physico-chemical parameters. pH values varied from 5.9 - 7.1, water temperature varied from 23.7 – 26.7OC, transference varied from 23-53 cm, TSS varied from 18.1-192 mg/l, TDS varied 25-193.5 mg/l, EC varied from 30-680 ?s/cm , DO content of water varied from 4.6 - 5.6mg/l, BOD varied from 0.2-2.614 mg/l, COD varied from 38-312 mg/l, NO3-N varied from 0.1-30.4 mg/l, NH3 varied from 0.9-2.18 mg/l, alkalinity varied from 12-42 mg/l and PO4 varied from 0.9 -13.4 (mg/l). Agricultural and inorganic pollutants have been observed as the main causes of the Haor water pollution.Jahangirnagar University J. Biol. Sci. 3(2): 67-72, 2014 (December)


2014 ◽  
Vol 10 (1) ◽  
Author(s):  
Lieza Corsita ◽  
Arwin Arwin ◽  
Barti Setiani Muntalif ◽  
Indah Rachmatiah Salami

Physico-chemistry and biological data were investigated  from  October 2010 until April 2011 of Jatiluhur reservoir. A total of six sampling stations were selected for this study. The discharge and hidrological data were obtained from Perum Jasa Tirta II Jatiluhur. The results showed that the hydrological regime in the reservoir Jatiluhur was affected by global phenomenon La Nina events in 2010 and early in 2011. Stream flows were determined during sampling to range from 78  to 482.5 m3/s. The water quality findings were as follows: pH (6.93-8.81), temperature (26.37-30.6°C), dissolved oxygen (0.733-5.2 mg/l), conductivity (2.45-233µmhos/cm), COD (7.36-96.9 mg/l), turbidity (4.063-65.6 NTU), total phosphate (0.002-0.324 mg/l), total nitrogen (0.99-5.96 mg/l), chlorophyl (2.237-43.37 mg/m3), visibility (30-160 cm). The eutrophication was pronounced at Jatiluhur reservoir. Canonical Correspendence Analysis found that some water quality parameters correlated positively with the discharge and the water level.


2020 ◽  
Vol 26 (2) ◽  
Author(s):  
R. V. Thorat ◽  
D. A. Malvekar ◽  
A. U. Sutar

The main objective of this study is to confirm the potentials of Moringa oleifera seeds over alum for water purification. Various doses of Moringa seed powder 4, 8, 12 g/l were taken and checked for treatment of river and sewage water. After treatment of seed powder with water samples were analyzed for physico-chemical parameters like pH, Absorbance, TDS, TSS, Hardness, Chlorides, Conductivity, Turbidity, MPN and DO. Almost all parameters showed reduction with increasing dosage of Moringa seed powder. Similar doses of alum were checked with river water sample and were analyzed for above mentioned parameters. The results obtained showed that seed powder (natural coagulant) is more effective than conventional chemical coagulant., alum. The seed of Moringa oleifera is cheap, eco-friendly and non-toxic, can be effectively used as a coagulant for river and sewage water purification.


2021 ◽  
Vol 6 (2) ◽  
pp. 18-24
Author(s):  
Shashikala Kokcha ◽  
Harsha Chatrath

Purpose of the study: The purpose of this study is to make sure that the Bird valley’s quarry water is suitable for drinking purposes or not and to monitor the seasonal variations in the physico-chemical parameters of this quarry water. Methodology: Water samples from the quarry were collected in clean and sterilized polyethylene bottles. Water samples were collected from different points and mixed together to get an integrated sample. Some of the selected physico-chemical parameters of the quarry water have been analyzed. Results were compared with standard limits of IS: 10500-2012. All the parameters were analyzed in the laboratory by using standard methods and techniques. Main Findings: As per the obtained results this quarry water contains a very large number of Coliforms detected in the months of September and December and in June month Coliform count was 33 CFU/ml. This overall result for coliform is making this quarry water unfit for domestic purposes. Applications of this study: This study helps us to understand the current condition of this quarry water and also enables us to know whether the quarry water is fit for drinking purposes. It also enables us to know whether this quarry water can be used for domestic purposes after the treatment. Novelty/Originality of this study: Bird valley’s quarry water has not been analyzed from this point of view till date. This study will help us to understand the present condition of the water.


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