scholarly journals Structure and Distribution of Macrobenthos Community in Code River, Yogyakarta, Indonesia

2021 ◽  
Vol 2 (2) ◽  
pp. 21-27
Author(s):  
Ratih Ida Adharini ◽  
Putri Latifa Arumsari
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Diversity Index ◽  
Organic Matter Content ◽  
Matter Content ◽  
Quality Data ◽  
Water Quality Data ◽  
Wiener Diversity Index ◽  
Evenness Index ◽  
Water Ph

This research aimed to explore the community structure of macrobenthos in Code River, Yogyakarta. This research was conducted during December 2019-January 2020 in Code River, Yogyakarta. Data was taken 4 times in 6 stations. Macrobenthos was taken using a Surber net with a size of 30 x 30 cm and sampling at 5 spots in each station. Data analysis consisted of density, diversity index, dominance index, and evenness index. Water quality data consisted of water temperature, flow velocity, water depth, water pH, dissolved oxygen, and organic matter. The results showed that the density of macrobenthos ranged from 54-172 ind/m2. Our results showed that Code River has moderate diversity based on the Shannon-Wiener diversity index. Sulcospira testudinaria is the most dominant species in Code River. The evenness index showed high except at station 2 which was categorized as moderate. Code River has pretty good water quality, but stations 3, 4, and 5 which are located in the city area, it has a high organic matter content.

scholarly journals Phytoplankton Community Investigation and Water Quality Assessment of M River in winter in Shijiazhuang City

2021 ◽  
Vol 267 ◽  
pp. 01035
Author(s):  
Ziqi Zhang ◽  
Lei Yang ◽  
Dongxu Han ◽  
Hongyan Shen
Keyword(s):  
Water Quality ◽  
Species Diversity ◽  
Water Body ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Water Quality Assessment ◽  
Species Diversity Index ◽  
Wiener Diversity Index ◽  
Eutrophic Water ◽  
Evenness Index

An investigation of phytoplankton community and water quality for M River was conducted in December 2019.The results showed that 38 species of phytoplankton belonging to 6 phyla and 26 genera were collected. Among them, Bacillariophyta is the richest species, which accounted for 34.21%, followed by Cyanophyta with 26.32% and Chlorophyta with 28.95%. The density of phytoplankton was 63.0*106 inds/L which indicated as eutrophic water body. The highest density was Bacillariophyta, accounting for 51.03%. The Shannon-Wiener diversity index (H’) varied from 1.34 to 2.24, the Margalef Species diversity index (d) varied from 2.71 to 3.85, and the Pielou evenness index (J) varied from 0.38 to 0.67. According to the integrative analysis results of H’, d and J, M River water quality belongs to oligo-polluted, but individual sites belong to meso-polluted.

Lime loss rates from arable and grassland soils

1998 ◽  
Vol 131 (4) ◽  
pp. 455-464 ◽  
Author(s):  
B. J. CHAMBERS ◽  
T. W. D. GARWOOD
Keyword(s):  
Organic Matter ◽  
Soil Ph ◽  
Agricultural Land ◽  
Negative Relationship ◽  
Organic Matter Content ◽  
Matter Content ◽  
N Fertilizer ◽  
Exchangeable Ca ◽  
Water Ph ◽  
Loss Rates

Lime loss rates were determined for 11 agricultural soils across England (1987–92) under arable cropping (six sites) and grassland management (five sites), receiving commercial rates of fertilizer inputs. Lime additions in the range 0–1500 kg ha−1 CaCO3 (250 kg ha−1 CaCO3 increments) were made annually to the sites. Soil pH (water and 0·01 m CaCl2) and exchangeable calcium concentrations were measured annually. The annual lime loss rates were calculated as the amount of lime needed to maintain the initial site pH or exchangeable Ca concentrations.Lime loss rates based on soil water pH varied between 40 and 1270 kg ha−1 CaCO3, on the basis of CaCl2 pH between 0 and 1370 kg ha−1 CaCO3, and exchangeable Ca between 0 and 1540 kg ha−1 CaCO3. There was a positive relationship between the lime loss rate (based on water pH) and initial soil pH value (r=0·75; P<0·01), and a negative relationship with soil organic matter content (r=0·63; P<0·05) was based on soil pH, organic matter content and nitrogen (N) fertilizer input. Lime loss rates were approximately double those predicted by previous models developed in the 1970s, reflecting the greater quantities of inorganic N fertilizer now being applied to agricultural land.

scholarly journals HUBUNGAN TEKSTUR SEDIMEN DAN KANDUNGAN BAHAN ORGANIK DENGAN KELIMPAHAN MAKROZOOBENTOS DI MUARA SUNGAI SILANDAK, SEMARANG

2017 ◽  
Vol 5 (4) ◽  
pp. 363-370
Author(s):  
Dewi Meynita ◽  
Max Rudolf Muskananfola ◽  
Sri Sedjati
Keyword(s):  
Organic Matter ◽  
Random Sampling ◽  
Diversity Index ◽  
Organic Matter Content ◽  
Domestic Sewage ◽  
Matter Content ◽  
Time Interval ◽  
Clay Loam ◽  
Sediment Texture ◽  
Coastal Reclamation

ABSTRAK Muara Sungai Silandak merupakan salah satu subsistem drainase wilayah Semarang Barat yang bermuara ke teluk Semarang.Muara merupakan tempat akumulasi buangan limbah domestik dan pabrik. Dilakukannya reklamasi pantai pada bagian hilir Muara Silandak dapat menyebabkan sedimentasi yang akan mempengaruhi keberadaan makrozoobentos. Tujuan dari penelitian ini adalah mengetahui tekstur sedimen, kandungan bahan organik dan kelimpahan makrozoobentos.Materi yang digunakan dalam penelitian ini adalah sampel sedimen dan sampel makrozoobentos pada setiap stasiun yang berlokasi di muara sampai pesisir Pantai Maron.Penelitian ini dilakukan dengan sampling acak atau Random Sampling dengan empat stasiun.Pada setiap stasiun terdapat tiga titik sampling, sampel sedimen dan makrozoobentos diambil pada setiap titik kemudian dikomposit perstasiun.Sampling dilakukan pada interval waktu dua minggu dengan tiga kali pengulangan.Hasil analisis tekstur sedimen pada stasiun I memiliki tekstur liat sedangkan stasiun II, III dan IV memiliki tekstur lempung liat berpasir. Hasil kandungan bahan organik pada stasiun I,II, III dan IV sebesar 19,33%, 15,20%, 13,40% dan 10,67%. Sedangkan kelimpahan makrozoobentos yang didapatkan stastiun I sebesar 652 ind/m3 , stasiun II 696 ind/m3 , stasiun III 783 ind/m3 (tertinggi) dan stasiun IV 261 ind/m3 dengan katagori indeks keanekaragaman belum tercemar dan tidak adanya jenis yang mendominasi.  Kata kunci: Tekstur Sedimen, Kandungan Bahan Organik, Kelimpahan Makrozoobentos, Muara Sungai Silandak Semarang.   ABSTRACT Silandak Estuary is one of the subsystem drainage areas in West Semarang that flow into the bay of Semarang. The estuary is a place of accumulation of domestic sewage and factories. Coastal reclamation at the downstream estuary Silandak causing sedimentation that will affect the existence of macrozoobenthos. The purpose of this research was to know the sediment texture, organic matter content and abundance of macrozoobenthos. The material used in this research is the sediment samples and samples of macrozoobenthos at any station located at the estuary to the coast of Maron. The research used random sampling with four stations. At each station there are three sampling points, samples of sediment and makrozoobentos taken at any point which then composite sample at each station. The sampling was done with time interval of two weeks with three repetitions. The results of the sediment texture at the station I has the texture of clay while the station II, III and IV have a texture of sandy clay loam. The results of the organic material content at stations I, II, III and IV is amounted 19,33%, 15,20%, 13,40% and 10,67% and while abundance of makrozoobentos at station I are 652 ind/m3, station II 696 ind/m3, station III 783 ind/m3(higher) and station IV 261 ind/m3 with a diversity index categories clean water zone and not found the dominant species. Keywords: Sediment Textures, Organic Matter Contents, Abundance of Makrozoobentos, Silandak Estuary Semarang. 

scholarly journals Diversity of reef fish in Halang Melingkau Island, South Kalimantan, Indonesia

2020 ◽  
Vol 21 (10) ◽  
Author(s):  
Frans Tony ◽  
SOEMARNO SOEMARNO ◽  
DEWA GEDE RAKA WIADNYA ◽  
LUCHMAN HAKIM
Keyword(s):  
Water Quality ◽  
Coral Reef ◽  
Reef Fish ◽  
Diversity Index ◽  
Trophic Relationships ◽  
Quality Data ◽  
Underwater Visual Census ◽  
Water Quality Data ◽  
Coral Reef Ecosystems ◽  
Reef Fish Species

Abstract. Tony F, Soemarno, Wiadnya DGR, Hakim L. 2020. Diversity of reef fish in Halang Melingkau Island, South Kalimantan, Indonesia. Biodiversitas 21: 4804-4812. Reef fish is one benchmark to determine a coral reef ecosystem's biodiversity. Reef fish communities are important in coral reef ecosystems because of their trophic relationships with other biotic components. The aim of this study was to determine the biodiversity of reef fish on Halang Melingkau Island, Kotabaru District, South Kalimantan, Indonesia. This research was conducted in March-August 2019. Coral reef fish data were collected using an underwater visual census method. Transects were applied as close as possible to the substrate using a 50 m roll-up measuring tape. Three transects were applied at each station. A total of 98 reef fish species from 19 families were recorded in this study. The fish community in Halang Melingkau island belongs to the family of Pomacentridae, Labridae, Chaetodontidae, Scaridae, Haemulidae, Lutjanidae, Scolopsidae, Serranidae, Caesionidae, Holocentridae, Siganidae, Pomacanthidae, Apogonidae, Pempheridae, Scorpaenidae, Tetraodontidae, Blenniidae, Platacidae, and Zanclidae. The highest abundance of reef fish was 1.88 ind/m2, and the lowest was 0.14 ind/m2. The dominance index (C) ranged from 0.03 to 0.13, the homogeneity index (E') ranged from 0.72 and 0.94, and the diversity index (H') ranged from 2.17 to 3.53. Water quality data measurements of temperature, brightness, current speed, pH, and DO (Dissolved Oxygen) were within the tolerance limits of water quality standards based on the Minister of Environment Decree No. 51 of 2004, Republic of Indonesia.

scholarly journals Spatial assessment of tap water safety in China and associated health impacts

2022 ◽  
Author(s):  
Mengjie Liu ◽  
Nigel Graham ◽  
Wenyu Wang ◽  
Renzun Zhao ◽  
Yonglong Lu ◽  
...  
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Tap Water ◽  
Rapid Development ◽  
Organic Matter Content ◽  
Matter Content ◽  
Anthropogenic Factors ◽  
Water Safety ◽  
Water Supplies ◽  
Potential Health

Abstract The quality of municipal water supplies is of fundamental importance to public health and national security. Here, we assess the tap water quality in 31 provinces across China and examine the effects of natural and anthropogenic conditions on water quality and associated health risks. Precipitation is a crucial factor influencing the organic matter content and ionic conductivity in tap water, especially for arid and semi-arid regions. Although the concentration of disinfection byproducts (DBPs) is closely related to the organic matter content, the occurrence of highly toxic DBPs was more significantly affected by anthropogenic factors such as economic development and pollution emission. We confirmed nanofiltration as an effective point-of-use treatment to reduce the adverse effects of DBPs in public water supplies. Since DBPs in tap water is a long-term global problem, our results highlight the potential health hazards of drinking water brought about by social development and conclude that countries and regions with rapid development might face high DBP toxicity.

Total Bahan Organik dan Kualitas Air di Perairan Morodemak, Kabupaten Demak

2021 ◽  
Vol 10 (2) ◽  
pp. 205-212
Author(s):  
Ni Nyoman Widya Triyaningsih ◽  
Munasik Munasik ◽  
Wilis Ari Setyati
Keyword(s):  
Water Quality ◽  
Organic Matter ◽  
Sea Water ◽  
High Tide ◽  
Organic Matter Content ◽  
Pollution Index ◽  
Quality Standard ◽  
Matter Content ◽  
Marine Biota

Perairan Morodemak merupakan daerah yang memegang peranan penting di Jawa Tengah sebagai daerah tangkapan dan pelelangan ikan serta kawasan padat penduduk. Namun penelitian mengenai kandungan bahan organik dan indeks pencemaran di lokasi jarang dilakukan. Tujuan penelitian ini untuk analisis Kandungan bahan organik dan indeks pencemaran serta  mengetahui kandungan bahan organik dan kondisi pencemaran di Perairan Morodemak Kabupaten Demak. Materi yang digunakan adalah air laut yang terdapat di sekitar Perairan Morodemak Kabupaten Demak. Sampel yang digunakan adalah sampel permukaan air yang diambil dengan botol Nansen kurang lebih pada kedalaman 1 meter. Metode penelitian yang digunakan adalah metode deskriptif dengan mengkaji kualitas perairan berdasarkan bahan organic di perairan Morodemak Kabupaten Demak. Pengambilan data secara in-situ kemudian dianalisa di laboratorium, serta analisis kualitatif indeks pencemaran dengan metode STORET yang dikeluarkan oleh Kementrian Lingkungan Hidup Republik Indonesia. Kandungan bahan organik di Perairan Morodemak adalah sebesar 15.01–15.94 mg/L untuk keadaan surut dan 19.96–21.67 mg/L untuk pasang. Dari kandungan bahan organik yang ditentukan, didapatkan hasil BOD5 dan COD sebagai parameter kualitas perairan sebesar 241.42–370.19 mg/L dan 515.117–792.191 mg/L. Kondisi Perairan Morodemak tergolong ke dalam perairan yang tercemar dikarenakan hampir seluruh parameter yang diujikan melewati batas baku mutu air laut untuk biota laut yang ditentukan oleh Kepmen LH No. 51 Tahun 2004 dan melewati indeks STORET dengan skor perairan > -31. Morodemak waters are an area that plays an important role in Central Java as a fishing and auction area as well as a densely populated area. However, research on organic matter content and on-site pollution index is rarely conducted. The purpose of this study was to analyze the organic matter content and pollution index and to determine the organic matter content and pollution conditions in the waters of Morodemak, Demak Regency. The material used is sea water that is around Morodemak Waters, Demak Regency. The sample used is a water surface sample taken with a Nansen bottle at a depth of 1 meter. The research method used is descriptive method by assessing the quality of the waters based on organic matter in the waters of Morodemak, Demak Regency. In-situ data collection was then analyzed in the laboratory, as well as a qualitative analysis of the pollution index using the STORET method issued by the Ministry of Environment of the Republic of Indonesia. The organic matter content in Morodemak waters is 15.01–15.94 mg / L for low tide and 19.96–21.67 mg / L for high tide. From the determined organic matter content, the BOD5 and COD results as water quality parameters were 241.42–370.19 mg / L and 515,117–792,191 mg / L. The condition of Morodemak waters is classified into polluted waters because almost all the parameters tested have exceeded the sea water quality standard limit for marine biota determined by the Minister of Environment Decree No. 51 of 2004 and passed the STORET index with a water score of> -31.

Investigation of Phytoplankton and Evaluation on Water Quality of Taizi River in Liaoyang Area

2014 ◽  
Vol 955-959 ◽  
pp. 403-406 ◽  
Author(s):  
Hong Wei Wang ◽  
Qing Chao Xing ◽  
Chun Long Zhao ◽  
Hai Tao Zhao ◽  
Liang Ma ◽  
...  
Keyword(s):  
Water Pollution ◽  
Water Quality ◽  
Phytoplankton Community ◽  
Diversity Index ◽  
Species Diversity Index ◽  
Wiener Diversity Index ◽  
Evenness Index ◽  
Taizi River ◽  
Better Than

To evaluate water quality, an investigation of phytoplankton community was conducted in Taizi River of Liaoyang Area, June 2011. The results showed that 130 species of phytoplankton belong to 6 phyla and 63 genera existed. Chlorphyta has the richest species of algae, which accounted for 43.85% of the total number, followed by Bacillariophyta (32.41%). Water quality in upstream is better than downstream. Species and biomass of Cyanophyta and Euglenophyta which have tolerance of pollution increasing According to the integrative analysis result of Shannon-Wiener diversity index, Pielou Evenness index and Margalef Species diversity index, Taizi river is judged belong to low-polluted or oligo- polluted，but some sites belong to β -moderate polluted, effective managements should be taken in order to control the water pollution.

scholarly journals EFFECT OF PARTICLE SIZES AND CONTENT OF ORGANIC MATTER SEDIMENT ON EPIPELIC DIATOM ABUNDANCE IN BAYUR BAY WATERS OF WEST SUMATERA

2020 ◽  
Vol 3 (1) ◽  
pp. 49-59
Author(s):  
Benni ◽  
Sofyan Husein Siregar ◽  
Irvina Nurachmi
Keyword(s):  
Water Quality ◽  
Particle Size ◽  
Organic Matter ◽  
Organic Matter Content ◽  
Matter Content ◽  
Water Quality Parameter ◽  
Survey Method ◽  
Diatom Abundance ◽  
Sediment Types ◽  
Epipelic Diatoms

The aim of this study is to determine the water quality, the particle size (mm) and the organic matter content sediment, the type and abundance of epipelic diatoms, and  the effect of particle size and organic matter content of the sediment on the abundance of epipelic diatoms at Bayur Bay Waters. This study was conducted in June - July 2019. The survey method was applied in this study and sampling location determine by purposive sampling. The resullt of measurement of water quality parameter ranged salinity 29 ‰ - 34 ‰, pH 7-8, current speed of 0,10 m/s – 0,53 m/s, temperature 30,330C - 31,670C. The sediment types are grouped into four types, namely gravel, sandy gravel, gravelly sand, and sand. The average of particle size (Mz) ranged -1,37 Ø - 0,80 Ø. The organic matter on sediment ranged 2,46% -6,36%. Eleven species of epipelic diatoms was recorded namely Amphora sp, Cocconeis sp, Diploineis sp, Halamphora sp, Melosira sp, Navicula sp, Nitzschia sp, Pinnularia sp, Stephanodiscus sp, Isthmia sp and Synedra sp. The average value of abundance range 2.836 – 10.812 ind/cm2. Epipelik diatom abundance was not significantly different between the stations. The effect of sediment particle size on the abundance of epipelic diatoms by 34,37%. The effect of content of organic matter sediment on abundance of epipelic diatoms in Bayur Bay Waters by 51,78%.

scholarly journals Water Quality Monitoring and Controlling using IoT

2021 ◽  
Vol 02 (01) ◽  
Author(s):  
Haziq Lukman Johar ◽  
◽  
Shamsul Mohamad ◽  
Shaharil Mohd Shah ◽  
Rafizah Mohd Hanifa ◽  
...  
Keyword(s):  
Water Quality ◽  
Water Quality Monitoring ◽  
Quality Data ◽  
The Internet ◽  
Time Data ◽  
Water Quality Data ◽  
The Public ◽  
Water Ph ◽  
Water Quality Status ◽  
And Control

The water quality status of rivers in Malaysia has always been a cause for concern for various local authorities, government agencies, and the public. The issue is that the traditional method, such as workers, needs to go to each tank or river to collect data. The process set some drawbacks such as labor-intensive, lack of real-time data, and high operation and equipment costs. In this research, the aim is to implement the Internet of Things (IoT) in monitoring and controlling the water quality. The pH and temperature sensors were integrated with NodeMCU ESP82666 to collect water pH and temperature data. This platform is also used to control the servo motor for managing systems. NodeMCU sends the data through the Internet to the Blynk application. Using Blynk, users can monitor live data from the tank, see the data trend, and control the water quality. All the data that has been taken is saved in the cloud database using phpMyAdmin. The connection also used NodeMCU ESP8266, where the coding was written and compiled using Arduino IDE software. This project has successfully achieved its objective where water quality data (pH and temperature) can be monitored, stored in a database, and water pH levels can be controlled using IoT.

scholarly journals ANALYSIS CONTENT OF ORGANIC MATTER IN SEDIMENT AND ABUNDANCE OF MACROZOOBENTHOS IN TELUK BUO PADANG WEST SUMATERA

2020 ◽  
Vol 2 (3) ◽  
pp. 197-205
Author(s):  
Rinol Putra Utama ◽  
Syahril Nedi ◽  
Afrizal Tanjung
Keyword(s):  
Organic Matter ◽  
Diversity Index ◽  
Organic Matter Content ◽  
Matter Content ◽  
Sediment Organic Matter ◽  
Survey Method ◽  
West Sumatra ◽  
Relationship Of ◽  
The Relationship

This research was conducted in May 2018 in the waters of Teluk Buo, Padang, West Sumatra. The purpose of this study was to determine the environmental quality of the Teluk Buo waters, especially to determine the abundance of macrozoobenthos and determine the relationship between sediment organic matter and abundance of macrozoobenthos. The method used in this study is a survey method. The results of the study note that the waters of the Teluk Buo are included in the medium polluted criteria with a diversity index (H ') ranging from 2.18-3.43, dominance index (C) 0.10-0.32 and uniformity index (e) 0.51-0,78. Abundance ranges from 80-240 ind/m2 with the number of macrozoobenthos species found there are 9 species of gastropods and 5 species of bivalves. The relationship of sediment organic matter content to macrozoobenthos abundance was included in the moderate criteria with a correlation coefficient (r) -0.382.

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