scholarly journals Monsoonal plankton distribution and physico-chemical water qualities in a rain-fed lake in Noakhali, Bangladesh

2020 ◽  
Vol 32 (1) ◽  
pp. 179-184
Author(s):  
NAJMUS SAKIB KHAN ◽  
MD SAIFUL ISLAM ◽  
JABER BIN ABDUL BARI ◽  
MD MOSTOFA KAMAL
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Suspended Solids ◽  
Science And Technology ◽  
Total Suspended Solids ◽  
Zero Point ◽  
Physico Chemical ◽  
Plankton Distribution ◽  
Chemical Water

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.

scholarly journals Limnology of Merbok estuary, Kedah, Malaysia

2015 ◽  
Vol 41 (1) ◽  
pp. 13-19
Author(s):  
Kaniz Fatema ◽  
Wan Maznah Wan Omar ◽  
Mansor Mat Isa
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Suspended Solids ◽  
Total Suspended Solids ◽  
Quality Parameters ◽  
The Other ◽  
Wet Season ◽  
Hand Temperature ◽  
Do Concentration ◽  
Merbok Estuary

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

scholarly journals The Evaluation of Dissolved Oxygen (DO), Total Suspended Solids (TSS) and Suspended Sediment Concentration (SSC) in Terengganu River, Malaysia

2018 ◽  
Vol 7 (3.14) ◽  
pp. 44
Author(s):  
Noorjima Abd Wahab ◽  
Mohd Khairul Amri Kamarudin ◽  
Mohd Ekhwan Toriman ◽  
Frankie Marcus Ata ◽  
Hafizan Juahir ◽  
...  
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Dissolved Oxygen ◽  
Suspended Sediment ◽  
River Basin ◽  
Suspended Solids ◽  
Suspended Sediment Concentration ◽  
Total Suspended Solids ◽  
Sediment Concentration ◽  
Quality Parameters

Terengganu River Basin is situated in the north eastern coastal region of Peninsular Malaysia. 29 sampling stations were selected. The water quality parameters were measured such as Dissolved Oxygen (DO), Total Suspended Solids (TSS) and Suspended Sediment Concentration (SSC). Results showed that the range of DO (2.11 mg/L – 8.07 mg/L), TSS (0.4 mg/L – 128.2 mg/L) and SSC (0.07 mg/L – 25.6 mg/L). The distribution of land use and land cover activities effected to the level of water quality in watersheds. The analyses of variance (ANOVA) was applied and provide a better understanding for the complex relationships among water quality parameters. Graphical data helps a better view of the overall analysis to appoint sources of pollutants to their effect. Terengganu River Basin is a shallow and has a sensitive ecosystem that responds to the land use changes and development activities of its surroundings. Water quality analysis showed that TSS and SSC were higher in the dry season but DO were higher in the wet season. Overall, the water in the Terengganu River Basin classified slightly contaminated especially the main sources of pollutants were possibly waste products and waste from development activities such as sand mining, farming, residential and agricultural.  

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
Keyword(s):  
Dissolved Oxygen ◽  
Water Samples ◽  
Suspended Solids ◽  
Total Suspended Solids ◽  
Spring Season ◽  
Chemical Parameters ◽  
High Discharge ◽  
Tigris River ◽  
Discharge Water ◽  
Physico Chemical

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.

scholarly journals Kualitas Air Media Pemeliharaan Benih Udang Windu (Penaeus monodon Fabricius) dengan Sistem Budidaya yang Berbeda

2016 ◽  
Vol 19 (2) ◽  
pp. 171
Author(s):  
Ali Djunaedi ◽  
Heri Susilo ◽  
Sunaryo Sunaryo
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Suspended Solids ◽  
Penaeus Monodon ◽  
Total Suspended Solids ◽  
Average Concentration ◽  
Tiger Shrimp ◽  
Recirculation System ◽  
Improve Water Quality ◽  
Seed Medium

 Medium rearing of the P. monodon Fabricius seed at the hatcheries usually used closed system and without water changes during culture period, until certain time the water quality could deterioted. The purpose of this research was to understand the effects of recirculation system on the water qualities (total suspended solids, ammonia, ammonium, nitrite and dissolved oxygen) of tiger shrimp (P. monodon Fabricius) seed medium. This research was conducted in the hatchery of Marine Science of Diponegoro University at Teluk Awur. The research used experimental method with two treatments, recirculation and non-recirculation system. Concentrations of total suspended solids (TSS), ammonia, nitrite and dissolved oxygen (DO) were descriptive analyzed. Average concentration on recirculation system of  TSS was 0,570 mg/L, ammonia was 0,039 mg/L, nitrite was 0,076 mg/L and DO was 6,00 mg/L. Average concentration on without recirculation system of TSS was 0,983 mg/L, ammonia was 0,09 mg/L, nitrite was 0,2 mg/L and DO was 3,86 mg/L. The resirculation rearing system was improve water quality on tiger shrimp seed medium. Keywords : Water Quality, Recirculation System, Tiger Shrimp (P. monodon Fabricius) Budidaya benih udang windu (P.  monodon  Fabricius) pada bak pembenihan umumnya menggunakan sistem tertutup dan air media tidak diganti, sehingga dalam waktu tertentu dapat terjadi penurunan kualitas air. Penelitian ini bertujuan untuk mengetahui perubahan kualitas air (MPT, amonia, amonium, nitrit dan DO) pada pemeliharaan benih udang windu (P.  monodon  Fabricius) dengan sistem resirkulasi dan tanpa resirkulasi. Penelitian dilakukan di Marine Center, Jurusan Ilmu Kelautan, Teluk Awur, Jepara. Metode penelitian yang digunakan adalah eksperimental dengan dua perlakuan yaitu penggunaan sistem resirkulasi dan tanpa resirkulasi. Data konsentrasi material padatan tersuspensi (MPT), amonia, nitrit, oksigen terlarut (DO), pH dan suhu selama penelitian dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa pada sistem resirkulasi konsentrasi rata – rata MPT 0,570 mg/L, amonia 0,039 mg/L, nitrit 0,076 mg/L dan DO 6,00 mg/L, sedangkan pada bak tanpa sistem resirkulasi konsentrasi rata – rata MPT 0,983 mg/L, amonia 0,09 mg/L, nitrit 0,2 mg/L dan DO 3,86 mg/L. Sistem resirkulasi mampu memperbaiki kualitas air media pemeliharaan benih udang windu. Kata kunci:   Kualitas Air, Sistem Resirkulasi, Udang Windu (Pennaeus monodon Fabricius). 

Seagrass depth range and water quality in southern Moreton Bay, Queensland, Australia

1996 ◽  
Vol 47 (6) ◽  
pp. 763 ◽  
Author(s):  
EG Abal ◽  
WC Dennison
Keyword(s):  
Water Quality ◽  
Chlorophyll A ◽  
Suspended Solids ◽  
Light Attenuation ◽  
River Mouth ◽  
Total Suspended Solids ◽  
Quality Parameters ◽  
Depth Range ◽  
Moreton Bay ◽  
A Site

Correlations between water quality parameters and seagrass depth penetration were developed for use as a biological indicator of integrated light availability and long-term trends in water quality. A year-long water quality monitoring programme in Moreton Bay was coupled with a series of seagrass depth transects. A strong gradient between the western (landward) and eastern (seaward) portions of Moreton Bay was observed in both water quality and seagrass depth range. Higher concentrations of chlorophyll a, total suspended solids, dissolved and total nutrients, and light attenuation coefficients in the water column and correspondingly shallower depth limits of the seagrass Zostera capricorni were observed in the western portions of the bay. Relatively high correlation coefficient values (r2 > 0.8) were observed between light attenuation coefficient, total suspended solids, chlorophyll a, total Kjeldahl nitrogen and Zostera capricorni depth range. Low correlation coefficient values (r2 < 0.8) between seagrass depth range and dissolved inorganic nutrients were observed. Seagrasses had disappeared over a five-year period near the mouth of the Logan River, a turbid river with increased land use in its watershed. At a site 9 km from the river mouth, a significant decrease in seagrass depth range corresponded to higher light attenuation, chlorophyll a, total suspended solids and total nitrogen content relative to a site 21 km from the river mouth. Seagrass depth penetration thus appears to be a sensitive bio-indicator of some water quality parameters, with application for water quality management.

scholarly journals Assessment of the Impact of Small Hydropower Plants on the Ecological Status Indicators of Water Bodies: A Case Study in Lithuania

Water ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 433
Author(s):  
Laima Česonienė ◽  
Midona Dapkienė ◽  
Petras Punys
Keyword(s):  
Water Quality ◽  
Benthic Macroinvertebrates ◽  
Suspended Solids ◽  
Ecological Status ◽  
Fish Abundance ◽  
Water Bodies ◽  
Small Hydropower ◽  
Hydropower Plants ◽  
Physico Chemical ◽  
The Impact

Hydropower plants produce renewable and sustainable energy but affect the river’s physico-chemical characteristics and change the abundance and composition of the aquatic organisms. The impact of large HPPs on the ecological conditions of surface water bodies have been extensively studied, but less attention has been paid to environmental impact studies of small hydropower plants (SHPs). The impact of hydropeaking on both the river flow regime and ecosystems has been well-studied for peaking mode plants, mainly medium to large-sized ones. However, for small hydroelectric power plants, and especially for those in lowland rivers, the available information on water quality, benthic macroinvertebrates communities and fish abundance, and biomass is not sufficient. Ten small hydropower plants were selected, and the ecological status of water bodies was assessed in different parts of Lithuania. The studies were performed at the riverbed upstream from the SHPs, where the hydrological regime has not changed, and downstream from the SHPs. It was found that the small hydropower plants do not affect the physico-chemical values of the water quality indicators. This study demonstrated that the total number of benthic macroinvertebrates taxa (TS) is influenced by the concentration of nitrogen and suspended solids, the water flow, the river area, and the current speed; the number of EPT (Ephemeroptera (mayflies), Plecoptera (stoneflies), and Trichoptera (caddisflies)) taxa is influenced by the concentration of nitrogen and suspended solids. The studied indicators do not have a significant impact on biomass. The SHPs affect the fish abundance and biomass. The Lithuanian fish index (LFI) is influenced by the average depth and area of the river. Some SHPs operating in lowland areas may yield somewhat significant hydrograph ramping but more detailed investigation is needed to support the significance of this impact on the biological indices.

scholarly journals Assessment of the Water Quality of Jatiluhur Reservoir, the Downstream of Citarum Cascade River, Using Selected Physico-Chemical Parameters

2014 ◽  
Vol 10 (1) ◽  
Author(s):  
Lieza Corsita ◽  
Arwin Arwin ◽  
Barti Setiani Muntalif ◽  
Indah Rachmatiah Salami
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Water Level ◽  
Hydrological Regime ◽  
Quality Parameters ◽  
Biological Data ◽  
Chemical Parameters ◽  
Stream Flows ◽  
Physico Chemical

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.

scholarly journals WATER QUALITY INDEX OF TIGRIS RIVER WITHIN BAGHDAD CITY: A REVIEW

2021 ◽  
Vol 25 (3) ◽  
pp. 34-43
Author(s):  
Tamarah A. Adnan ◽  
◽  
Eman A. Mohammed ◽  
Abdul-Sahib T. Al-Madhhachi ◽  
◽  
...  
Keyword(s):  
Water Quality ◽  
Fecal Coliform ◽  
Suspended Solids ◽  
Review Paper ◽  
Total Suspended Solids ◽  
Total Hardness ◽  
Iron Ion ◽  
The North ◽  
Tigris River ◽  
The City

Tigris River is the only potable source in Baghdad city therefor many water treatment plants were built on the banks such as Al-Karkh, Sharq Dijla, Al-Sadr, Al-Wathba, Al-Karama, AlQadisia, Al-Dora, Al-Wahda, and Al-Rashed project. Tigris River suffers from the pollution that comes from various sources such as Industry, domestic sanitation, and farming activities therefore several indices were used to calculate water quality within Baghdad to convert physicochemical parameters of water to a single value that represents the river status (good, bad, very bad, etc..).The aim of this review paper to show the results of previous studies about the water quality for the Baghdad region. Most results showed that water quality was good in the north of the city of Baghdad and bad in the south of Baghdad. The deterioration of water quality was due to many reasons such as the discharge of wastewater directly into the river without pretreatment, increase in (Electic conductivity, Turbidity, and total suspended solids, total hardness, Iron ion, the fecal coliform)concentrations, and Climate change, therefore, Tigris River needs intensive treatment before using by humans.

scholarly journals Analisa Kualitas Air Fisika dan Kimia di Danau Pampait (Physical and Chemical Water Quality Analysis in Lake Pampait)

2020 ◽  
Vol 7 (1) ◽  
pp. 75-87
Author(s):  
Ummi Suraya ◽  
Lilia Lilia
Keyword(s):  
Water Quality ◽  
Dissolved Oxygen ◽  
Aquatic Organisms ◽  
Quality Analysis ◽  
Middle Section ◽  
Water Quality Analysis ◽  
Average Temperature ◽  
Physical And Chemical ◽  
Chemical Water ◽  
Quality Measurements

This study aims to determine the water condition of Lake Pampait, KamelohBaru Village, Sebangau District, Palangka Raya City, measured from physical and chemical water quality as a measure of the condition of the water quality in Lake Pampait. The study was conducted for approximately 2 (two) months, namely from June to July 2018. Sampling was carried out in 3 (three) stations, namely inlet (station I), middle section (station II) and outlets (station III). The physical and chemical water quality measurements are carried out directly, namely temperature, brightness, depth, pH (Degrees of Acidity) and DO (Dissolved Oxygen) while indirectly or analyzed in the laboratory are PO4 (Phosphate), NO3 (Nitrate) and NH3 (Nitrate) Ammonia). The results of research on physical and chemical water quality is an average temperature of 23.7 oC. Brightness 28.75 cm, Depth 4.25 m, Degree of Acidity (pH) with an average of 6.03, and Dissolved Oxygen (DO) 2.93 mg/L, Phosphate (PO4), Nitrate (NO3), and Ammonia (NH3) ) 0.932 mg/L, it can be concluded that Lake Pampait can be said to be still not polluted and is still considered good for the life of fish and other aquatic organisms.

PERFORMANCE EVALUATION OF A DEVELOPED PADDLE AERATOR ON CATFISH EFFLUENTS IN LAGOS STATE, NIGERIA

2017 ◽  
Vol 16 (1) ◽  
pp. 75-85
Author(s):  
O. E. OMOFUNMI ◽  
J. K. . ADEWUMI ◽  
A. F. ADISA ◽  
S. O. ALEGBELEYE
Keyword(s):  
Water Quality ◽  
Suspended Solids ◽  
Oxygen Demand ◽  
Total Suspended Solids ◽  
Dilution Ratio ◽  
Paddle Wheel ◽  
Lagos State ◽  
Total Ammonia ◽  
The Impact ◽  
Natural Purification

Catfish production is one of the largest segments of fish culture in Lagos State, Nigeria. However, catfish effluents, which usually deteriorate the environment, need to be controlled. The effect of paddle-wheel aerator in catfish effluent was evaluated. The volume of catfish effluent was collected into two basins and diluted at given ratios. The paddle-wheel aerator was installed in one basin, while another basin served as control in determining the impact of paddle wheel aerator on catfish effluents. Water qualities such as Total Suspended Solids (TSS), Total Nitrogen (TN), Total Phosphorus (TP), Total Ammonia (TNH3) and Nitrite (NO2-N) and Biochemical oxygen demand (BOD5) examined and ana-lysed. Results indicated that paddle-wheel aerator reduced TSS (24.4±1.5 %), TN2-N (53.3±1.2 %) , TNH3-N (65.2±1.2 %) , NO2-N (97.1±1.1 %) , TP (61.8±1.1 %) and BOD5 (54 ±1.5 %). com-pared with natural purification 33.9±1.6 % of TSS, 22.7±1.4 % of TN2-N, 29.3±1.6 % of TNH3-N, 53.9±1.2 % of NO2-N, 21.6±1.5 % of TP and 15.4±1.6 % of BOD5 at the same dilution ratio There were significant different (P ≤0.05) between paddle wheel aerator and natural purification in concen-trations reduction. The paddle wheel aerator was found to be relevant in the water quality improve-ment and thus recommend for small and medium scale fish farmers in controlling effluents.

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