Impact of water level fluctuations on the water quality of a shallow lake – spring and summer studies

2006 ◽  
Vol 29 (4) ◽  
pp. 2087-2088
Author(s):  
Ryszard Staniszewski ◽  
Józef Szoszkiewicz
Keyword(s):  
Water Quality ◽  
Water Level ◽  
Shallow Lake ◽  
Water Level Fluctuations

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.

Characteristics of the Physical and Chemical Parameters of Water in Pools of Port in Świnoujściein 2009

2013 ◽  
Vol 6 ◽  
pp. 78-84
Author(s):  
Emil Cyraniak ◽  
Piotr Daniszewski ◽  
Beata Draszawka-Bołzan
Keyword(s):  
Water Quality ◽  
Surface Waters ◽  
Research Evaluation ◽  
Water Level Fluctuations ◽  
The Status ◽  
The Moment ◽  
The Baltic ◽  
General Cargo ◽  
Physical And Chemical

The aim of this work was to be traced during the summer and autumn of 2009 the level and dynamics of changes in the waters of the port the port Świnoujście general parameters pools water quality. In the work of the General indicators of water temperature, were numbered: pH, BOD5, COD-Cr, Cl-. All the markings and the calculation was performed according to the methods recommended by Polish Standards, applying analytical procedures described in. by Dojlido, Elbanowską, Hermanowicz. Port of Świnoujście is a sea port located on the Gulf of Pomorską, on the southern coast of the Baltic Sea, on the islands of Usedom and Wolin. The Port is located at the Świna, in Świnoujście, West Pomeranian Voivodeship. The port can be placed on ships with a maximum length of 42.0 m and width 260,0 m, draught 12.8 m. The tides in the Harbor, but the water level fluctuations are possible with sudden currents entering and outgoing, which depending on the direction of prevailing winds and reaching speeds of up to 1.5 knots. At the entrance to the port at the West breakwater, It is Western. The primary function of the port of Świnoujście is the transshipment of cereals, ores, oil, paper, cellulose, general cargo, coal, iron. Trying to test water were collected by PN/C-04632.03 with a depth of about. 2 m below the water surface. The temperature at the place of sampling were numbered, pH. Collected water samples were fixed in accordance with the recommendations in the Polish Standard-PN/C-04632.04. Other indicators for the quality of the waters have been tagged within 24 hours from the moment of download attempts. The quality objectives was evaluated according to the criteria recommended to evaluate inland surface waters referred to in regulation of the Minister of the environment of 11 February 2004 on the classification for the present status of surface water and groundwater, how to conduct monitoring and how to interpret the results and presentation of these waters. Due to the exposure of the docks the port Świnoujście on the pollution associated with cross-what are the cereals, ores, oil, cellulose, carbon, iron, general research evaluation of the water quality of these pools, you can assess the status of water in order to keep these waters.

Effects of load reductions on the water quality of a large shallow lake

1987 ◽  
Vol 39 (1-2) ◽  
pp. 85-99 ◽  
Author(s):  
Tibor Kutas ◽  
Sándor Herodek
Keyword(s):  
Water Quality ◽  
Shallow Lake ◽  
Large Shallow Lake

scholarly journals PEMANTAUAN KUALITAS AIR DI BAGIAN HULU SUNGAI CISADANE DENGAN INDIKATOR MAKROINVERTEBRATA

2017 ◽  
Vol 1 (1) ◽  
pp. 68
Author(s):  
Poltak BP Panjaitan ◽  
Supriyono Eko Wardoyo ◽  
Sofian Rodian
Keyword(s):  
Water Quality ◽  
Water Level ◽  
Human Life ◽  
Research Area ◽  
Middle Level ◽  
Polluted Water ◽  
Chemical Waste ◽  
Middle Point ◽  
Invertebrate Animals

Observation on the Water Quality of Cisadane River in the Upstream Part Using Macroinvertebrates as The Indikator          Water is an important thing for either human life or other creatures on the earth.  Water posses a lot of necesities, among of them is to fullfill domestics, industries, and agriculture. For this purposes people often take from rivers.  River Cisedane is one of rivers that available in Bogor City, having water catchment area of 1100 km2 and is one of main rivers in West Java and Banten Province. One procedure for testing water quality of rivers is to see the invertebrate animals available in the river, because some species are very sensitive for pollution. There were three points in the reserch area that were in upperpart area was Rancamaya, middle area was Pasir Jaya, and the lower area was Situ Gede.  Water quality value index in Rancamaya (Upper part) was 5.42, included middle level of water pollution. In Pasir Jaya (middle point) was 4.75, included polluted water level, and in Situ  Gede (lower prt) was 4.28 included more pollutud water level. Overall of observed research area were the lower part of river the worse pollution available. The pollution available in the research area was caused by domestics waste from inhabitant and other chemical waste from agriculture.Keyword :  Mikroinvertebrata, Cisadane, water quality, upper river part ABSTRAK          Air merupakan salah satu unsur yang sangat penting bagi kelangsungan hidup manusia maupun mahkluk hidup lainnya yang ada di muka bumi. Air memiliki banyak manfaat, diantaranya untuk memenuhi kebutuhan rumah tangga, industri dan pertanian. Untuk memanfaatkan air tersebut biasanya masyarakat mengambil air dari satu sungai pada suatu Daerah Aliran Sungai (DAS). Salah satu DAS yang terdapat di Kota Bogor yaitu DAS Cisadane dengan daerah tangkapan air seluas 1.100 km2, selain itu DAS Cisadane  merupakan aliran sungai utama di Propinsi Banten dan Jawa Barat. Salah satu cara untuk menilai kualitas air sungai adalah dengan melihat keberadaan makroinvertebrata yang hidup di sungai tersebut. Makroinvertebrata dapat memberikan petunjuk adanya pencemar, karena jenis-jenis tertentu sangat peka terhadap pencemaran. Maka berdasarkan hal tersebut penelitian ini akan mengidentifikasi adanya makro-invertebrata di sungai yang merupakan bioindikator kualitas airnya. Tiga titik pengambilan sampel makro-invertebrata di hulu sungai Cisedane yaitu di bagian atas peneltian (Daerah Rancamaya), di bagian tengah penelitian  (Pasir Jaya) dan di bagian bawah penelitian (Situ Gede). Nilai indeks kualitas air di bagian atas penelitian, yaitu di daerah Desa Rancamaya adalah 5,42. Itu menunjukan bahwa kualitas air di daerah tersebut masuk air berpolusi sedang. Pada lokasi penelitian di bagian tengah, yaitu Daerah Desa Pasir Jaya indeks kualitas air nya adalah 4,75. Itu menunjukan bahwa kualitas air di sana masuk air kotor. Sedangkan di bagian bawah penelitian, yaitu daerah Desa Situ Gede indeks kualitas air nya adalah 4,28. Itu menunjukan bahwa kualitas air di sana masuk air kotor. Dari Nilai Indeks Kualitas air di seluruh lokasi hulu sungai penelitian menunjukan bahwa semakin ke bawah kualitas air sungai semakin kotor. Kualitas air di sana diduga diakibatkan oleh sampah atau limbah organik yang berasal dari rumah tangga. Selain itu, kualitas air di sana diduga disebabkan oleh bahan –bahan kimia berbahaya yang berasal dari penggunaan pupuk, pestisida di areal pertanian. Kata kunci : Mikroinvertebrata, Cisadane, kualitas air, hulu.

scholarly journals Effects of Lake level changes on water quality and fisheries production of Lake Baringo, Kenya

2021 ◽  
Author(s):  
Jacques Walumona ◽  
Boaz Arara ◽  
Cyprian Ogombe ◽  
James Murakaru ◽  
Phillip Raburu ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Level ◽  
Fish Species ◽  
Lake Level ◽  
Water Level Fluctuations ◽  
Regression Analyses ◽  
Lake Level Fluctuations ◽  
Lake Level Changes ◽  
Over Time

The study was conducted in Lake Baringo and determined quantitative relationships between water level changes, water quality, and fishery production for informed lake basin management. Long-term (2008 to 2020) data on water level, water quality, and fisheries yields from Lake Baringo were analyzed using a combination of statistical methods. Linear and waveform regression analyses described patterns of lake level fluctuations over time while, Pearson’s correlation determined the concordance of lake level changes with water quality parameters, landings, and condition of fish species. PCA results grouped the study period into different years based on annual water quality variable levels. LOWESS analysis showed the decline of annual lake level amplitude over time with peak values in 1964 (8.6 m) and 2008 (9.4 m). The waveform regression significantly modeled lake level fluctuations as indexed by annual deviations from the long-term average (DLTM) and showed a 20-year oscillation between peak water levels in the lake. There were significant positive correlations of Water Level Fluctuations (WLFs) with water quality variables and water quality index (WQI) in Lake Baringo. Linear regression analyses showed a significant concordance (p < 0.05) between the annual fishery yield and the rising WLFs (r = 0.66). Overall, the results demonstrate that WLFs of Lake Baringo are a driver of fish species biomass and physico-chemical properties of the lake. We recommend the integration of fisheries yields, water quality assessment, and WLFs modeling at different temporal scales in the management of Afrotropical lake ecosystems

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