scholarly journals Status Kualitas Air dan Kesuburan Perairan Danau Kelapa Gading Kota Kisaran Provinsi Sumatera Utara

2018 ◽  
Vol 1 (1) ◽  
pp. 27-33
Author(s):  
Ahmad Muhtadi ◽  
Hesty Wahyuningsih ◽  
Natasya Zaharuddin ◽  
Aniliza Sihaloho
Keyword(s):  
Water Quality ◽  
Quality Standards ◽  
Class Ii ◽  
Total Coliform ◽  
Average Score ◽  
Trophic State Index ◽  
Class Iii ◽  
Artificial Lake ◽  
The Status ◽  
State Index

Danau Kelapa Gading (DKG) merupakan danau buatan yang terdapat di Kota Kisaran Provinsi Sumatera Utara. Danau ini berfungsi sebagai resapan air, tempat rekreasi, pemancingan dan pemeliharaan ikan baik di keramba maupun di dalam danau itu sendiri. Penelitian ini dilakukan dengan tujuan mengetahui a) kondisi kualitas air, b) mengetahui status mutu air, dan c) mengetahui tingkat kesuburan perairan DKG. Penelitian dilakukan pada Bulan Februari-April 2016. Metode yang digunakan untuk mengetahui kondisi kualitas air adalah mengukur parameter fisika-kimia dan dibandingkan dengan Baku Mutu PP N0. 82 tahun 2001. Metode penentuan status mutu air adalah metode storet. Metode untuk penentuan kesuburan adalah membandingkan baku mutu status trofik berdasarkan PerMenLH No. 28 tahun 2009 dan metode Trophic State Index/TSI. Kondisi kualitas air DKG dari hasil pengukuran didapatkan bahwa telah terjadi pencemar organik dan kotoran manusia, seperti terlihat dari nilai BOD dan Total Coliform yang telah melewati baku mutu menurut PP No 82 tahun 2001 pada kelas III dan II. Bahkan pada kelas II parameter TSS dan Fosfat juga telah melewati baku mutu yang ditetapkan. Status mutu air DKG adalah tercemar sedang untuk kelas II (dengan skor rata-rata -29) dan tercemar ringan (skor rata-rata -10) untuk kelas III. Tingkat kesuburan perairan DKG termasuk eutrofik berat dengan nilai TSI 72,71 - 79,21. The Lake of Kelapa Gading (DKG) is an artificial lake located in the City of Kisaran, North Sumatra. This lake serves as water absorption, recreation, fishing and captivity of fish both in cages and inside the lake itself. This research was conducted with the aim of studying a) the condition of water quality, b) the status of water quality, and c) the level of DKG water fertility. The study was conducted from February to April 2016. The method used to determine the condition of water quality is to measure the physico-chemical parameters and compared with Quality Standards regulation of PP No. 82 2001. The method of determining the status of water quality is the storet method. The method of determining fertility is to compare trofik status quality standards based on regulation of PerMenLH No. 28 2009 and the method of Trofik State Index/TSI. DKG water quality conditions from the measurement results showed that organic pollutants and human excreta had occurred, as seen from the values of BOD and Total Coliform which had passed quality standards according to the regulation of PP No. 82 2001 in class III and II. Even in class II, the TSS and Phosphate parameters have also passed the specified quality standard. The status of DKG water quality is moderately polluted for class II (with an average score of -29) and lightly polluted (average score of -10) for class III. DKG waters fertility levels included heavy eutrophic with TSI values of 72.71 to 79.21.

scholarly journals Assessment of Trophic Responses of a Reservoir to Seasonal and Annual Variations in Monsoon

Water ◽  
2021 ◽  
Vol 13 (15) ◽  
pp. 2117
Author(s):  
Su-mi Kim ◽  
Hyun-su Kim
Keyword(s):  
Water Quality ◽  
Trophic State ◽  
Monsoon Season ◽  
Phytoplankton Growth ◽  
Phosphorus Loading ◽  
Nutrient Concentrations ◽  
Trophic State Index ◽  
Post Monsoon ◽  
Post Monsoon Season ◽  
State Index

The variations in water quality parameters and trophic status of a multipurpose reservoir in response to changing intensity of monsoon rain was investigated by applying a trophic state index deviation (TSID) analysis and an empirical regression model to the data collected in two periods from 2014 to 2017. The reservoir in general maintained mesotrophic conditions, and Carlson’s trophic state index (TSIc) was affected most by TSITP. Nutrient concentrations, particularly phosphorus, did not show strong correlations with precipitation, particularly in the period with weak monsoon, and a significant increase in total phosphorus (TP) was observed in Spring 2015, indicating the possibility of internal phosphorus loading under decreased depth and stability of water body due to a lack of precipitation. TSIChl was higher than TSISD in most data in period 1 when a negligible increase in precipitation was observed in the monsoon season while a significant fraction in period 2 showed the opposite trend. Phytoplankton growth was not limited by nutrient limitation although nutrient ratios (N/P) of most samples were significantly higher than 20, indicating phosphorus-limited condition. TSID and regression analysis indicated that phytoplankton growth was limited by zooplankton grazing in the Spring, and that cell concentrations and community structure in the monsoon and post-monsoon season were controlled by the changing intensity of the monsoon, as evidenced by the positive and negative relationships between community size and cyanobacterial population with the amount of precipitation in the Summer, respectively. The possibility of contribution from internal loading and an increase in cyanobacterial population associated with weak monsoon, in addition to potential for nutrient enrichment in the post-monsoon season, implies a need for the application of more stringent water quality management in the reservoir that can handle all potential scenarios of eutrophication.

scholarly journals PHYSICOCHEMICAL AND BIOLOGICAL WATER QUALITY ASSESSMENT OF LAKE HAWASSA FOR MULTIPLE DESIGNATED WATER USES

2016 ◽  
Vol 9 (2) ◽  
pp. 146-157
Author(s):  
Adimasu Woldesenbet Worako
Keyword(s):  
Water Quality ◽  
Water Quality Assessment ◽  
Quality Parameters ◽  
Ethiopian Rift ◽  
Trophic State Index ◽  
Monthly Basis ◽  
Biological Water ◽  
State Index ◽  
Rift Valley Lakes ◽  
Biological Water Quality

Lake Hawassa is one of the Major Ethiopian Rift Valley Lakes which is situated in southern regional state, which has a closed basin system and receives water from only Tikurwuha River and runoff from the catchment. Quality of the lake water is vital for the surrounding community for proper and safe use of the lake. The present study was designed to examine the physicochemical and biological water quality suitability for multiple purposes and to determine trophic state index of the lake for a period of three months from December to February, 2011/12. Water samples were collected from the lake on monthly basis and analyzed for all water quality parameters by using standard methods. Data analysis was performed by descriptive, multivariate analysis (MANOVA%

scholarly journals KAJIAN KUALITAS PERAIRAN UNTUK PERIKANAN DI RAWA PENING JAWA TENGAH

2017 ◽  
Vol 8 (3) ◽  
pp. 173
Author(s):  
Siti Nurul Aida ◽  
Agus Djoko Utomo
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Trophic Level ◽  
Carrying Capacity ◽  
Water Hyacinth ◽  
Trophic State ◽  
Fish Growth ◽  
Household Waste ◽  
Trophic State Index ◽  
State Index

Perairan Rawa Peningmerupakan tipe perairan yang tergenang dan mempunyai arti penting bagi perikanan. Masalah utama yang ada di Rawa Pening yaitu pendangkalan karena sedimentasi dan eutrofikasi yang disebabkan pencemaran air berasal dari limbah rumah tangga, pertanian dan budidaya perikanan. Penelitian ini bertujuan untukmengetahui tingkat kesuburan perairan dan kualitas air di Rawa Pening. Penelitian dilakukan pada bulan Mei, Juni, Agustus dan Oktober 2013. Frekuensi pengambilan contoh dilakukan empat kali yaitu pada bulan Mei, Juni,Agustus dan Oktober. Stasiun pengamatan meliputi:A. Tengah (Puteran); B.Muara sungai (Torong); C.Area KJA; D. Pemotongan eceng Gondok (tengah 1); E. Sungai keluar (Tuntang); F. Muara sungai (Muncul); G. Tidak ada pemotongan eceng gondok (tengah 2). Data tingkat kesuburan perairan dianalisis dengan metode Carlon’s.Hasil penelitianmenunjukkan bahwa Rawa Pening termasuk katagori perairan dengan tingkat kesuburan tinggi, nilai Thropic State Index (TSI) pada semua stasiun pengamatan berkisar antara 57,22 - 68,06. Kondisi kualitas air yang kurang baik tersebut akanmerugikan perikanan, seperti kejadian kematian ikanmasal, lambatnya pertumbuhan ikan dan penurunan daya dukung perairan.The Rawa Pening waters is a lentic water and has significance for fishery. The main problems in Rawa Pening are silting due to sedimentation and eutrophication due to water pollution from household waste, agriculture and fisheries. The study aims to examine trophic level and water quality. The research conducted on May, June, August and October 2013. There was 7 stations i.e. A. middle (Puteran); B. inlet of Torong; C. Location of aquaculture;D. locations where harvesting of water hyacinth occurred (middle1); E. outlet (Tuntang); F. inlet (Muncul); G. location where no harvest of water hyacinth (middle 2). Trophic level were analyzed by Carlon’s method. The results showed that Rawa Pening waters categorized as the high eutrophication level where the Trophic State Index (TSI) was 57. 22 to 68. 06. The low water quality will be detrimentaled to fisheries, such as mass fish death, slow fish growth and also a decline of carrying capacity of ecosystem.

Analysis of Chemical Properties and Heavy Metals from Cisadane River, Tangerang, Indonesia

2021 ◽  
Vol 18 (1) ◽  
pp. 81-87
Author(s):  
Desy Rosarina ◽  
Ellysa Kusuma Laksanawati ◽  
Dewi Rosanti
Keyword(s):  
Heavy Metals ◽  
Water Quality ◽  
Chemical Properties ◽  
Data Retrieval ◽  
Quality Standards ◽  
Class Ii ◽  
Quality Standard ◽  
Water Quality Standards ◽  
Water Quality Standard ◽  
A Value

This paper explained heavy metals and chemical properties from the Cisadane River in Tangerang City. A survey method was used to determine the place for sampling the test material. Water measurement is carried out in situ and laboratory tests. Data retrieval was done by purposive sampling determining three observation stations, namely in the Taman Gajah Tunggal park area (station1), Babakan Cikokol residential area (station 2), and Karawaci paper mill area (station 3). The analysis was carried out exactly using analysis. Namely, analysis carried out in the laboratory. The parameters observed were COD, phosphate, DO, BOD, pH. Results of this study informed the water quality in the Cisadane City river did not meet Class II Water Quality Standards based on Government Regulation Number 82, the year 2001. The COD content only meets class II water quality standards at stations 1 and 3. BOD and phosphate content is high and exceeds class II water quality standards. Heavy metal content still meets the water quality standard threshold with a value of Cd less than 0.01 mg/L, Cu less than 0.02 mg/L, Pb less than 0.03mg/L, and Cr less than 0.05mg/L. Zn content exceeds the water quality standard threshold at station three and meets water quality standards at stations 1 and 2 with a value of less than 0.05mg/L.

scholarly journals Aquatic Macro-invertebrates as Bio-indicators: An Approach for Wetland Water Quality Assessment of Rampur Ghol, Chitwan, Nepal

2015 ◽  
Vol 19 (2) ◽  
pp. 58-64
Author(s):  
Birendra Gautam ◽  
Rejina Maskey ◽  
Ramesh Prasad Sapkota ◽  
Dharma Raj Dangol
Keyword(s):  
Water Quality ◽  
Rainy Season ◽  
Diversity Index ◽  
Water Quality Assessment ◽  
Class Ii ◽  
Dry Season ◽  
Class Iii ◽  
Quality Class ◽  
Evenness Index ◽  
Index Value

The present research was conducted to study seasonal limnological parameters and record composition pattern of aquatic macro-invertebrates of the Rampur Ghol. GRS-BIOS/ASPT index was used to calculate the water quality class, Shannon Weiner diversity index (H’) and Piélou evenness index (e) were used to determine taxa richness of the macroinvertebrates. Altogether 281 individuals of 14 families and 313 individuals of 18 families were recorded in dry season and rainy season, respectively. Similarly, diversity index and evenness index values were recorded 0.98 and 0.85 in dry season; 1.075 and 0.86 in rainy season. On the basis of different aquatic macro-invertebrates, GRS-BIOS/ASPT Index value of four sampling sites fall in class II (moderately polluted), four sampling sites belong to water quality class IIIII (critically polluted) and remaining two sampling sites belong to water quality class III (heavily polluted). Similarly, in rainy season seven sites fall in water quality class II (moderately polluted) and three sampling sites belong to water quality class II-III (critically polluted).Journal of Institute of Science and Technology, 2014, 19(2): 58-64

scholarly journals Were there any changes in zooplankton communities due to the limitation of restoration treatments?

2021 ◽  
Vol 21 (2) ◽  
pp. 91-104
Author(s):  
Joanna Rosińska ◽  
Katarzyna Kowalczewska-Madura ◽  
Anna Kozak ◽  
Wanda Romanowicz-Brzozowska ◽  
Ryszard Goldyn
Keyword(s):  
Water Quality ◽  
Species Composition ◽  
Trophic State ◽  
Species Number ◽  
Trophic State Index ◽  
Keratella Cochlearis ◽  
Bottom Waters ◽  
Phosphorus Inactivation ◽  
State Index ◽  
Zooplankton Communities

Abstract Zooplankton is a good indicator of water quality state. Analysing the species composition and abundance, it is possible to assess the condition of the water body and predict the direction of changes. The aim of the study was to analyse the zooplankton in a shallow urban lake, in which restoration was limited to one method, i.e. wind-aeration. The results were compared with the earlier data obtained during sustainable restoration (three methods: wind-aeration, phosphorus inactivation, biomanipulation) and before the restoration period. The zooplankton was sampled monthly in 2015 and 2016 in the deepest place of the lake from the surface to the bottom. The trophic state was determined based on rotifer trophic state index for lakes (TSIROT). Although the species composition of zooplankton communities varied very little among the restoration periods (Keratella cochlearis f. tecta mainly dominated), significant changes in the abundance of zooplankton were found in the analysed lake. The maximum of total abundance was noted in 2015, almost 5500 ind. L−1, and in the next year its decrease was almost 3-fold, to ca. 1800 ind. L-1. Based on TSIROT, the water was still eutrophic. Leaving only one method of restoration (namely, oxygenation of the bottom waters) proved insufficient to support the development of crucial organisms as cladocerans. The changes in the abundance could have resulted more from seasonal changes than from the effects of aeration. A reduction in species number and maintaining a high proportion of rotifers typical for a high trophic state indicated a return of the ecosystem to its pre-restoration state. High variability in the rotifer abundance indicated a continuous imbalance of the ecosystem. Previous restoration treatments using several methods simultaneously showed better effectiveness. The change of strategy of restoration before obtaining a stable improvement of water quality destroyed previously achieved effects.

scholarly journals Status of water quality and level of trophic in Juanda Reservoir of Purwakarta Regency, West Java, Indonesia

2021 ◽  
Vol 322 ◽  
pp. 01016
Author(s):  
Iis Jubaedah ◽  
Pigoselpi Anas ◽  
Toni Ruchimat ◽  
Joni Haryadi
Keyword(s):  
Water Quality ◽  
Trophic Level ◽  
Trophic Status ◽  
Class Ii ◽  
Class Iii ◽  
West Java ◽  
Water Quality Status ◽  
Secondary Function ◽  
Quality Status ◽  
Trophic Level Index

Juanda reservoir is one of the reservoirs located in Purwakarta Regency, West Java Province, Indonesia, whose primary function is hydropower, water resources for irrigation, industrial and drinking water, and secondary function for fisheries and tourism activities. Currently, an increase in activities around the existing reservoir has affected its water quality. In order to determine the water quality and trophic level status of the Juanda reservoir, research has been conducted within five stations during the period of August-December 2020. The water quality status includes physical, chemical, and biological parameters that compared with Store standards on Class II and III. Meanwhile, the trophic status was determined by Trophic Level Index (TLI) based on the parameters of transparency, chlorophyll-a, total nitrogen, and total phosphorus. The results show that the water quality status of Juanda reservoir has been contaminated Class III and heavily polluted Class II. The parameters that exceed include ammonia, nitrate, and BOD5. The Juanda reservoir's tropic status was in the eutrophic category, with TLI values ranging from 4.6 to 5.2.

scholarly journals A INTERFERÊNCIA DAS ATIVIDADES ANTRÓPICAS NA QUALIDADE DA ÁGUA EM RESERVATÓRIO DE ABASTECIMENTO URBANO. ESTUDO DE CASO: REPRESA DR. JOÃO PENIDO (JUIZ DE FORA, MG)

2017 ◽  
Vol 37 (1) ◽  
pp. 09
Author(s):  
Maria Magaly Heidenreich Silva Bucci ◽  
Luiz Fernando Cappa de Oliveira
Keyword(s):  
Water Quality ◽  
Land Use ◽  
Quality Index ◽  
Anthropogenic Impact ◽  
Trophic State ◽  
Trophic State Index ◽  
Monitoring Tool ◽  
State Index ◽  
Negative Impacts

Dr. João Penido dam is the main reservoir for water supply of Juiz de Fora (MG). The forms of land use and occupation have produced negative impacts on the aquatic ecosystem. The general objective of this study was to assess the anthropogenic impact on water quality of the watershed. To this was done to characterize the quality of its waters and the parameters measured were compared with CONAMA Resolution 357/2005. It was also calculated the Water Quality Index (WQI) and the Trophic State Index (TSI). The monitoring tool has proved essential in actions involving preservation of the watershed.

scholarly journals PENGELOLAAN EKOSISTEM MANGROVE BERBASIS SILVOFISHERY DI KECAMATAN CIBUAYA, KABUPATEN KARAWANG

2015 ◽  
Vol 5 (1) ◽  
pp. 59
Author(s):  
Yudhi Amrial ◽  
Hefni Effendi ◽  
Ario Damar
Keyword(s):  
Mangrove Ecosystem ◽  
Class Ii ◽  
Average Score ◽  
Class Iii ◽  
Or Education ◽  
Trade Off ◽  
Alternative Scenario ◽  
Multiplication Process ◽  
Class Average ◽  
Class Iv

Penelitian ini bertujuan untuk merumuskan pola pengelolaan silvofishery melalui pengoptimalanskenario kelas tambak silvofishery terpilih. Analisis penelitian menggunakan analisis trade off dengantiga alternatif skenario yaitu (1) tambak silvofishery kelas II (persentase tegakan mangrove dalam tambak(61%-80%), (2) tambak silvofishery kelas III (40%-60%), dan (3) tambak silvofishery kelas IV (<40%)serta lima kriteria yaitu ekologi, bioteknik budidaya, sosial, ekonomi dan kelembagaan. Hasil analisistrade off memperlihatkan urutan skor dari tiga skenario tambak silvofishery yaitu (1) skenario kelas IIImerupakan skenario dengan skor rataan tertinggi sebesar 56,88 disusul (2) skenario kelas II denganskor rataan 45,03 dan (3) skenario kelas IV dengan skor rataan 31,51 sedangkan bobot kriteria tertinggididapatkan pada (1) kriteria ekonomi dengan bobot 0,40 (2) kriteria ekologi dengan bobot 0,23 (3) kriteriabioteknik budidaya dengan bobot 0,16 (4) kriteria kelembagaan dengan bobot 0,13 dan (5) kriteria sosialdengan bobot 0,08. Hasil perkalian skor dengan bobot didapatkan prioritas alternatif kebijakan dalampengembangan silvofishey yaitu alternatif pertama skenario kelas III dengan total nilai (66,68), alternatifkedua skenario kelas IV (40,73) dan alternatif ketiga skenario kelas II (36,99). Implikasi kebijakan yangdapat dilakukan adalah mendorong tambak silvofishery kelas IV menjadi tambak silvofishery kelasIII. Dengan demikian, penggarap tambak diwajibkan menanam kembali mangrove hingga mencapai60% mangrove dan 40% tambak. Adapun tambak silvofishery kelas II (persentase 61-80%) dapatdijadikan Pusat Percontohan Silvofishery bagi masyarakat sekitar atau wisata berbasis pendidikan bagimasyarakat umum.Title: Mangrove Ecosystem Managemet Based on Silvofisheryin Cibuaya District, KarawangThe purpose of this study is arrange silvofishery management system with optimizing the choosenpond class scenario. Analysis that use in this study is trade off analysis with three alternative, they are(1) Class I (the percentage of mangrove stands in a fishpond more than (> 80%), (2) Class II (61 – 80%),(3) Class III (40% - 60%), dan Class IV (< 40%). The result from trade off analysis showed rangking ofscore for each class based on 5 criteria, they are (1) class III scenario, in this class the highest averageof score is 56,88; (2) class II scenario, in this class average of score is 45,03; (3) class IV scenario,in this class the highest average score is 31,51. Trade off also showed rangking of weight for eachclass, the rangking are (1) weight of economy criteria is 0,40; (2) weight of ecology criteria is 0,23; (3)weight of bioengineering cultivation criteria is 0,16; (4) weight of institutional criteria is 0,13; (5) weightof social criteria is 0,08. The result from multiplication process be obtained that the first alternativescenario is Class II (with total value 66,68), the second alternative scenario iss Class IV (40,73), and thethird alternative scenario is Class II (36,99). Therefore, Perhutani should encourage tenants Silvofisheryfourth grade (Class IV) (percentage mangrove <40%) to Class III (mangrove percentage 60%. Thus,tenants are required to replant mangrove farms in fishponds that have been deforested up to 60% and40% of mangrove fishponds. The ponds class II (percentage 61-80%) can be used as the Pilot CenterSilvofishery or education tourism for society.

scholarly journals Identification of the Main Water Quality Parameters for Monitoring and Evaluating Watershed Health

2020 ◽  
Vol 52 (2) ◽  
pp. 227
Author(s):  
Pranatasari Dyah Susanti ◽  
Nining Wahyuningrum
Keyword(s):  
Water Quality ◽  
Government Regulation ◽  
Pollution Index ◽  
Monitoring And Evaluation ◽  
Quality Standards ◽  
Quality Parameters ◽  
Class Iii ◽  
Water Quality Standards ◽  
Pollution Levels ◽  
Phosphate Nitrate

Water quality is one of the crucial parameters in monitoring and evaluating watersheds. A large number of parameters causes the monitoring and evaluation of watershed performance to be less efficient and costly. This study aims to determine the main parameters as a method of simplifying water quality observation parameters by producing equations that can be used to predict the level of pollution of a non-point source pollutant (watershed). A sampling of surface water was carried out by purposive sampling at several outlets located in the Brantas and Upper Solo watersheds. The research parameters analysed were: TSS, TDS, BOD, COD, Phenol, Free Chlorineine, Sulfide, Arsenic, Fe, Pb, Phosphate, Nitrate, Nitrite, Detergent, Turbidity and E. Coli. The results of the analysis of water quality are used to calculate the value of the Pollution Index (PI) according to the Decree of the Minister of Environment No. 115 of 2003 and to determine the class of water quality standards that refer to Class III water quality standards, in Government Regulation No.82 of 2001. The analysis showed that all samples were at mild to moderate pollution levels, and did not meet class III water quality standards. Multiple regression analysis produced two equations, namely: Model 1: PI = 3.952 + 91.668 Phenol and Model 2: PI = 3.086 + 80.167 Phenol + 0.152 BOD, with R squared values of 53% and 69.9% with a confidence level of 0.005. Thus the prediction of pollution levels of similar watershed can be made only by using the two most influential parameters namely phenol and/or BOD alone.   

Sign in / Sign up

Export Citation Format

Share Document