Some aspects of the ecology of freshwater algae in the Densu River and two tributaries in Southern Ghana

Studies on the composition and abundance of the phytoplankton in River Densu and two of its tributaries, Rivers Adeiso and Nsakir were carried out at ten sampling sites, including seven from different regions of the river basin namely Afuaman, Akwadum, Densuso, Manhean, Machigeni, Nsawam and Weija, as well as Adeisoand Pokuase. Sampling was done monthly at each sampling site from January to December, 2006. Physical and chemical parameters of river water were studied. The parameters of the river water varied with the sampling sites and the time of the year. Water samples for phytoplankton identification and enumeration were collected at each sampling site. Physico-chemical conditions of the river were assessed during sample collection or in the laboratory. Correlation analysis showed that there was a positive correlation between algal genera and the measured physical and chemical parameters of the river water. DOI: http://dx.doi.org/10.3126/ije.v3i2.10637 International Journal of the Environment Vol.3(2) 2014: 246-257

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Analysis of Physico-chemical parameters of salt pans at Newport and Nari situated around Bhavnagar Coast

Journal of Ecobiotechnology ◽

10.19071/jebt.2015.v7.200 ◽

2015 ◽

Vol 7 ◽

Cited By ~ 1

Author(s):

Apexa Rajesh Patadia

Keyword(s):

Pearson Correlation ◽

Sampling Site ◽

Analytical Data ◽

Total Hardness ◽

Chemical Characteristics ◽

Chemical Parameters ◽

Salt Pans ◽

Physico Chemical ◽

Physical And Chemical Parameters ◽

Physical And Chemical

The present study was carried out to evaluate physico-chemical parameters of two selected sites of salt pans ecosystem located at Bhavnagar coast, Gujarat for a period of one year December-2005 to August 2006. The analytical data obtained from samples become more informative if supplemented with information concerning the sampling site. Hence, the present work is aimed at the assessment of various physical and chemical parameters of water and sediment samples of salterns at Newport and Nari along Bhavnagar coast, Gujarat. The physico-chemical characteristics include temperature, pH, turbidity, salinity, alkalinity, total hardness, total dissolved solids, chloride, calcium, magnesium, sodium, potassium, sulphate and phosphate. The results of various physico – chemical characteristics indicate that with most of the parameters examined the contents recorded were higher in water samples as compared to sediments and also the values were higher at Newport than at Nari. Notable observation was with total hardness and sulphate, where the contents were higher in sediments and the alkalinity, calcium and magnesium contents were higher at Nari than at Newport. The data were subjected by Karl-Pearson correlation coefficient to examine the corelationship in between and among various physical and chemical parameters using SPSS. 15.0.

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The Diversity of Makrozoobenthos as Bio-Indicators of Water Quality of the River Kundur District Labuhanbatu

Budapest International Research and Critics Institute (BIRCI-Journal) Humanities and Social Sciences ◽

10.33258/birci.v4i1.1732 ◽

2021 ◽

Vol 4 (1) ◽

pp. 1027-1033

Author(s):

Winarti Winarti ◽

Arman Harahap

Keyword(s):

Total Abundance ◽

Chemical Parameters ◽

Observation Station ◽

Physical Chemical ◽

Physico Chemical ◽

Physical And Chemical Parameters ◽

The Individual ◽

Physical And Chemical ◽

Chemical Water

Macrozoobenthos used as a bioindicator of the waters, this happens because of the nature of the benthos which has mpergerakan low so it got a lot of influence from the environment. This study aims to determine the condition of the river Kundur with a view the community structure of macrozoobenthos which include: species composition, abundance, diversity, uniformity and dominance as well as the physical and chemical parameters of water as a paremeter supporters. Based on the results of observations, macrozoobenthos were found during the study in the river Kundur consists of 3 phylum, 4 classes, 17 family with 11 species. The composition of the class of macrozoobenthos in the whole of the observation station consists of a Gastropod (37%), Insecta (23%), Malacostraca (20%), Polychaeta (10%) dan Malacostraca (20%). The value of an abundance ranged from 325,7 - 3309,6 ind/m3. With the value of the total abundance at Station I which is equal to 3690,1 ind/m3, Station II 3723,1 ind/m3, Station III 3692,3 ind/m3 can be categorized diversity are light polluted with the value of the index of uniformity (E) that describes the spread of the individual tends to be uniform or relatively the same. While the condition of the physical-chemical parameters and the substrate bottom of the river Kundur in general has a range of relatively homogeneous, spread evenly throughout the observation stations and still be able to support life macrozoobenthos. To the results of measurements of the parameters of physico-chemical water and substrate in the river kundur in general has a range of relatively homogeneous in the whole observation stations and still be able to support the life of the macrozoobenthos.

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CHANGES IN PHYSICO-CHEMICAL PARAMETERS DURING FORCED-AERATION STATIC-PILE CO-COMPOSTING OF CATTLE MANURE WITH CALCIUM CYANAMIDE

Journal of Environmental Engineering and Landscape Management ◽

10.3846/16486897.2013.852557 ◽

2014 ◽

Vol 22 (2) ◽

pp. 125-131 ◽

Cited By ~ 1

Author(s):

Huasai Simujide ◽

Chen Aorigele ◽

Chun-Jie Wang ◽

Jun-E Yu ◽

Bai Manda ◽

...

Keyword(s):

Comprehensive Evaluation ◽

Static Condition ◽

Cattle Manure ◽

Chemical Parameters ◽

Limit Value ◽

Physico Chemical ◽

Physical And Chemical Parameters ◽

Mature Compost ◽

Forced Aeration ◽

Physical And Chemical

The goal of this research was to determine the effect of CaCN2 addition into manure mixed with sawdust on the composting process under forced-aeration static condition, especially on nitrogen (N). The changes in the physical and chemical parameters over the entire composting period were evaluated. The profile of temperature, pH, and NO3 –-N was improved in the piles mixed with 2%, 3% and 4% CaCN2 (the test piles). The NH4 +-N met the limit value accepted for mature compost. Finally, the additive contents of not less than 2% but not more than 3% in CaCN2 were recommended for this system based upon a comprehensive evaluation of the measured parameters.

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A Preliminary Study of the Physico-Chemical Parameters and Potential Pollutant Sources in Urban Lake Rawa Besar, Depok, Indonesia

Indonesian Journal of Geography ◽

10.22146/ijg.60420 ◽

2021 ◽

Vol 53 (2) ◽

Author(s):

Mangapul Parlindungan Tambunan ◽

Kuswantoro Marko ◽

Ratna Saraswati ◽

Rokhmatuloh Rokhmatuloh ◽

Revi Hernina

Keyword(s):

Urban Lake ◽

Chemical Parameters ◽

Nitrate N ◽

Physico Chemical ◽

Physical And Chemical Parameters ◽

Pollutant Sources ◽

Water Quality Status ◽

Preliminary Study ◽

Physical And Chemical ◽

Quality Status

Lake Rawa Besar is an urban lake surrounded by dense settlements and commercial areas that are currently experiencing physical and ecological pressures due to uncontrolled land-use change around the lake. Therefore, this preliminary study aimed to investigate the sustainable management of the lake in order to create a recreational destination area. It was carried out by ascertaining the lake water quality status through the analysis of the physical and chemical parameters and identifying the potential pollutant sources due to land use and human activities. The physical parameters include TDS, TSS, Turbidity, while the chemical parameters include Nitrate-N, Total Phosphate-P, and BOD. Furthermore, field surveys on 30 water samples were conducted once at noon and statistical analysis was used to ascertain the correlation between the physical and chemical parameters. Finally, Geographic Information System (GIS) tools were used to investigate the spatial distribution of the Physico-chemical parameters and the potential pollutant sources. The results showed that based on the six parameters of the water quality status, the lake was lightly polluted. It also showed that three parameters such as Turbidity, BOD, and TSS exceed the permissible limit with 93.3, 66.7, 43.7% of the total samples, respectively. Additionally, a strong correlation existed between BOD and Turbidity with r=0.95, while a medium correlation existed between Nitrate-N and Phosphate-P with r=0.40. The spatial distribution of the concentration of the physico-chemical parameters generally had a varied pattern, however, Turbidity and BOD had a similar pattern, especially in the bank areas. Finally, domestic and organic wastes were indicated as pollutant sources, which increased eutrophication in the lake.

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Study of Water Quality for Aquaculture System in Ujung Pacu River, North Aceh Regency

Omni-Akuatika ◽

10.20884/1.oa.2020.16.3.849 ◽

2020 ◽

Vol 16 (3) ◽

pp. 119

Author(s):

Riri Ezraneti ◽

Munawar Khalil ◽

Marzuki Marzuki

Keyword(s):

Water Quality ◽

River Water ◽

Pollution Index ◽

River Water Quality ◽

Survey Method ◽

Sampling Station ◽

Chemical Parameters ◽

Physical And Chemical Parameters ◽

Net Cages ◽

Physical And Chemical

Ujung Pacu River is one of the rivers found in North Aceh Regency which is often used by surrounding communities such as for industrial, agricultural, residential and aquaculture activities that can affect river water quality. This study aimed to determine the water physical and chemical parameters in the Ujung Pacu River for aquaculture activities. The research method used was a survey method by determining the sampling station based on community activities around the river. The study consisted of 4 stations with 3 sampling points at each station. Data of water physical and chemical parameters were compared with water quality standards and analyzed descriptively with a quantitative approach. The results showed that the range of water quality values were various in each stations. Ujung Pacu River is influenced by daily tide fluctuations. The highest water quality fluctuations occur in salinity, turbidity and depth. The pollution index in the Ujung Pacu river is included to criteria of Lightly polluted rivers with range 1.8545 - 4.4979. The Ujung Pacu River is unsuitable for aquaculture systems using floating net cages system in river bodies. Keywords: Ujung Pacu River, water quality, pollution index

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Kualitas Parameter Fisik dan Kimia Perairan Sungai Sago Kota Pekanbaru Tahun 2016

Jurnal Katalisator ◽

10.22216/jk.v4i1.2834 ◽

2019 ◽

Vol 4 (1) ◽

pp. 32

Author(s):

Suryani Suryani

Keyword(s):

River Water ◽

River Sediment ◽

Sampling Site ◽

Inorganic Materials ◽

Marine Ecology ◽

Chemical Parameters ◽

River Water Samples ◽

Flowing Waters ◽

Physical And Chemical

Sungai merupakan perairan yang mengalir dan membawa bahan-bahan terlarut di dalamnya. Bahan-bahan yang terkandung dalam air sungai itu selain dapat memperkaya kandungan air yang positif dapat juga menjadi bahan yang berbahaya baik bagi lingkungan maupun organisme yang hidup didalamnya. Sungai Sago berada dalam wilayah pemukiman padat penduduk dan padat aktivitas.Penelitian ini dilakukan di wilayah Kota Pekanbaru. Tempat sampling penelitian adalah di Sungai Sago Kota Pekanbaru dengan pengambilan sampel pada 5 (lima) stasiun sampling di sepanjang Sungai Sago. Sampel air sungai Sago dianalisis secara eksitu di Laboratorium Ekologi Perairan Fakultas Perikanan dan Ilmu Kelautan Universitas Riau Pekanbaru. Beberapa parameter diukur dan dinilai langsung dilokasi sampling secara insitu. Sampel yang digunakan dalam penelitian ini adalah air Sungai Sago, endapan sungai yang akan diteliti, bahan-bahan titrasi di laboratorium sampel dari Sungai Sago. Hasil analisis untuk parameter fisik dan kimia kualitas perairan, sungai sago mengalami pencemaran. Hal ini disebabkan oleh semakin bervariasinya aktivitas manusia yang memproduksi limbah berupa bahan organik dan anorganik serta karena terjadinya akumulasi dari aktivitas di hulu. Rivers are flowing waters and carrying dissolved materials in them. The materials contained in the river water in addition can enrich the positive water content can also be a dangerous material for the environment and organisms living therein. Sago River is located in a densely populated and densely populated residential area. The research was conducted in the area of Pekanbaru City. The sampling site of the research is in Sungai Sago Pekanbaru with sampling at 5 (five) sampling stations along the Sago River. Sago river water samples were analyzed exitually in the Marine Ecology Laboratory of Fisheries and Marine Sciences Faculty of Riau University of Pekanbaru. Some parameters are measured and assessed directly in the location of sampling in situ. The sample used in this research is Sago River water, river sediment to be studied, titration materials in laboratory samples from Sago River. The results of the analysis for the physical and chemical parameters of water quality, sago river experiencing contamination. This is caused by the increasing variety of human activities that produce waste in the form of organic and inorganic materials and because of the accumulation of upstream activities.

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Study of Rural Groundwater Quality in Brestea Village, Romania

“Agriculture for Life Life for Agriculture” Conference Proceedings ◽

10.2478/alife-2018-0059 ◽

2018 ◽

Vol 1 (1) ◽

pp. 393-398

Author(s):

Maria Popa ◽

Gabriela-Alina Dumitrel ◽

Ioana Glevitzky ◽

Mirel Glevitzky ◽

Dorin Popa

Keyword(s):

Water Quality ◽

Drinking Water ◽

Chemical Properties ◽

Chemical Parameters ◽

Limit Values ◽

Physico Chemical ◽

Physical And Chemical Parameters ◽

Nitrite Nitrate ◽

Physical And Chemical

Abstract Water is a social requirement and an important factor in the ecological balance. Water from wells is good for direct consumption if the soil is not contaminated. The quality of drinking water is regulated by Law no. 458/2002 (transposing the Directive 98/83/EC on the quality of drinking water). The aim of this paper was to assess the physicochemical qualities of groundwaters from Brestea village, commune Denta, Timis County. The water samples were taken in 2015 from 10 functional wells. For the source whose physical and chemical parameters have exceeded the limit values, the monthly monitoring of the water quality (microbiological and physico-chemical properties) has been performed for 2 years. At the same time, the pH of the soil near the water sources was also measured. The results highlighted a good connection between the microorganisms from water and the nitrite, nitrate and ammonium content of water. The information can be further used to identify and eliminate the specific pollutants, areas and pollution sources.

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Study of suitability waters location for seaweed culture in Muna Regency, Indonesia

Akuatikisle Jurnal Akuakultur Pesisir dan Pulau-Pulau Kecil ◽

10.29239/j.akuatikisle.1.2.13-24 ◽

2017 ◽

Vol 1 (2) ◽

pp. 13 ◽

Cited By ~ 1

Author(s):

Sitti Sasrani Mutrono Gufana ◽

Fendi Fendi ◽

Karyawati Karyawati ◽

Abbas Sommeng

Keyword(s):

Observation Point ◽

Limiting Factor ◽

Seaweed Cultivation ◽

Chemical Parameters ◽

Seaweed Species ◽

Physical And Chemical Parameters ◽

Chemical Conditions ◽

Physical And Chemical ◽

Eucheuma Cottonii ◽

Seaweed Culture

The research aims to determine the location of cultivation at various levels of suitability and identify physical and chemical conditions in the location of seaweed cultivation in the Muna Regency. The study was conducted in June 2018 in 4 (four) stations which are coastal areas of Muna Regency, namely Marobo Village Marobo District (Station 1), Komba-Komba Village Kabangka District (Station 2), Lasunapa Village Duruka District (Station 3), and Bahari Village Towea District (Station 4). Observation and measurement and sampling were carried out at three different locations, namely observation point 1 (a location that was never planted seaweed), observation point 2 (former location of seaweed cultivation), and observation point 3 (location of seaweed cultivation). The results showed that the location of waters for seaweed cultivation in the Muna Regency consisted of appropriate and less appropriate criteria based on the value of the evaluation results of the suitability of the location of waters for seaweed cultivation. These criteria are scattered at each station's observation points. All physical and chemical parameters of the waters in the land suitability criteria become a limiting factor for seaweed growth, at each observation point that is different at each station. All types of seaweed (algae) can live in the waters of Muna Regency, where seaweed species Eucheuma cottonii, Eucheuma spinosum, and Gracilaria sp. are types that are already common in cultivation, and Eucheuma cottonii and Eucheuma spinosum are types that are already popular in seaweed cultivation activists in Muna Regency

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