scholarly journals Diversity of Planktonik Diatom at Bengkalis Waters, Riau Province

2021 ◽  
Vol 934 (1) ◽  
pp. 012074
Author(s):  
S H Siregar ◽  
M Mubarak

Abstract This research was carried out in August to September 2019 at Bengkalis Waters, Riau Province. This study goals to describe the water quality statues and to determine the species composition, abundance and biological index of planktonic diatom in the Bengkalis waters. Survey method was applied in this research which are 5 stations established, with 3 sampling points in each station. The stations were determined purposively based on antrophogenic activities conducted in that area. Diatom samples were filtered from surface water as much as 100 liters by using plankton net number 25, and the samples were then observed using an Olympus CX 21 microscope (magnification 10 x 10 and 10 x 40) and were identified. The value of water quality at each station indicates that the water is in normal range and it may support the growth of diatoms. There were 20 spesies of planktonic diatoms recorded in the Bengkalis waters. There were 2 species, namely Coscinodiscus sp. and Navicula sp. that were found in each station. Meanwhile, the abundance of plankatonic diatoms ranged from 23,041.80 to 286,693.18 ind/l. The average of biological indices values are as follows: diversity index 1.39-2.32, dominance index 0.24 to 0,48 ind / l, and the uniformity index 0.55 to 0.87 ind / l. The biological indices values indicated that the Bengkalis Waters can be categorized as moderate polluted water and there is no dominant species.

Author(s):  
Kristina Marsela ◽  
Herman Hamdani ◽  
Zuzy Anna ◽  
Heti Herawati

Citarum River is the longest river in West Java Province, it is utilized for various anthropogenic activities that will affect the water quality, ecological state, and parameters of nitrates and phosphates in the waters of Citarum River. Nitrate and phosphate content can affect Phytoplankton abundance. Phytoplankton is a bioindicator to determine water quality. The purpose of this study is to determine the association of nitrates and phosphates with the abundance of phytoplankton and determine the quality of water in the Citarum River. The study began in August 2020 until September 2020. The research uses a survey method with a purposive sampling technique. Sampling was carried out at 5 stations with 5 times repetitions every 7 days. The water parameter analyzed are transparency, temperature, current, pH, DO, BOD, PO42-,NO3-, Phytoplankton abundance, diversity index, and dominance index. Results showed that phytoplankton in the citarum river there were 24 genera divided into 4 phylum. Diversity index during the study reached between 0,91 – 0,99 and dominance index was in the range 0,01 – 0,2. Phytoplankton abundance ranges from 11 to 1292 ind/L. The highest genera phytoplankton composition at each station was found is Synedra as much as 1087 ind/ L. Nitrate content ranges from 0.13 - 0.33 mg/l and phosphate content range from 0.13 - 0.29 mg/l. The acquisition of R square value based on the simultaneous analysis of the relationship between nitrate and phosphate and the abundance of phytoplankton was 43,9% and 56,1% was influenced by other several factor namely temperature, water transparency, nutrient, and water flow.


Author(s):  
Ezra Angel R. Samosir ◽  
Zahidah Hasan ◽  
Iis Rostini ◽  
Herman Hamdani

This research was conducted to determine the water quality of Situ Ciburuy based on the plankton community as water quality bio-indicator. This research used the survey method and the observation result data were analyzed descriptively. The abundance of phytoplankton is about 340 – 8913 ind/L indicates that the abundance of phytoplankton is moderate and the abundance of zooplankton is about 7 – 30 ind/L indicates that the abundance of zooplankton is low. The Simpson diversity index for the phytoplankton group ranged from 0.29 – 0.33 and the Simpson Diversity Index for the zooplankton group ranged from 0.42 – 0.56 while the Simpson Dominance Index for the phytoplankton group ranged from 0.67 – 0.71 and the Simpson Dominance Index for zooplankton ranged from between 0.44 – 0.58 which indicates Situ Ciburuy is in an unstable condition. Based on the value of the Saprobic Index ranged between (-0.2) to (0). Situ Ciburuy belongs to α / β – mesosaprobic phase and categorized in the moderately polluted category.


Biosfera ◽  
2015 ◽  
Vol 32 (2) ◽  
pp. 83 ◽  
Author(s):  
Utojo Utojo

This study aims to estimate the wealth and stability of traditional and intensive brackishwater pond waters through biological index calculation (diversity, uniformity and dominance of plankton) in traditional and intensive brackishwater pond waters of Probolinggo Regency, East Java Province. Sampling plankton and water from the site, considered to represent the diversity of plankton and water stability of traditional and intensive brackishwater pond. Plankton was collected using a plankton net no. 25, then preserved using 1% lugol solution. Measurement of water quality variables include temperature, salinity, dissolved oxygen and pH, whereas the laboratory analyzes that Total Organic Matter (TOM), NO2, NO3, NH3, PO4, Total Suspended Solids (TSS), and Fe. Plankton identification using microscope and calculation with cell counting method. The results of analysis of plankton in intensive brackishwater pond waters are obtained as much as 23 genera consisting of 16 genera of phytoplankton were included into three classes, namely Bacillariophyceae as much as 5 genera, Cyanophyceae 3 genera, Dinophyceae and Chlorophyceae, each of the four genera, whereas zooplankton consisting of 7 genera are included into two classes, namely Crustaceae 6 genera and Rotatoria 1 genus. In traditional brackishwater pond earned as much as 13 genera consisting of 8 genera of phytoplankton were included into Bacillariophyceae 5 genera, Cyanophyceae 2 genera, and Dinophyceae 3 genera, whereas zooplankton consisting of three genera are included into class Crustaceae 2 genera and Rotatoria 1 genus. Plankton abundance in intensive brackishwater pond ranges 702 - 4269 ind./L, diversity index of 0.26 -2.38, uniformity index of 0.10 - 1.5, and dominance index of 0.02 - 0.68. In traditional brackishwater pond have an abundance of plankton range 134 - 776 ind./L, diversity index of 0.10 - 1.97, uniformity index of 0.08 - 1.0, and dominance index of 0.01 - 0.75. Traditional and intensive brackishwater pond waters condition still within the limits that can be tolerated by the culture organism. Based on the index value of biological, diversity of genus in the intensive brackishwater pond is relatively higher than traditional brackishwater pond and the community stability moderate, whereas traditional brackishwater pond unstable. On average, the uniformity of the genus in both  brackishwater ponds are relatively evenly and genus of plankton to dominate the others genus.


Author(s):  
Erwin Theofilius ◽  
Zahidah Hasan ◽  
Asep Agus Handaka ◽  
Herman Hamndani

This study conducted to determine the water quality of Situ Ciburuy based on the structure of the gastropod community as a bioindicator. The survey method used in this study based on collecting data directly at the research area (purpose sampling method).  For instance, species and density of gastropods were descriptively analyzed, using diversity index and evenes index. For instance, The findings showed that level of water quality in  Situ Ciburuy based on gastropods bioindicators was lightly polluted. That is indicated by the low to moderate diversity of gastropods, which ranges from 1.31-1.98. The Shannon evenness index (0,73-0.95) revealed low gastropod species diversity in Situ Ciburuy, indicating low evenness of gastropod in Situ Ciburuy.


2018 ◽  
Vol 73 ◽  
pp. 04006
Author(s):  
Edy H.P Melmambessy ◽  
Irianis L. Latuperissa ◽  
Marius Agustinus Welliken ◽  
Nova Suryawati Monika ◽  
Rosa Delima Pangaribuan

Maro River is one of the major rivers in Merauke Regency that has a width of about 43-900 m and length of 300 km. The purpose of this study is to find out the type and composition of fish caught using gill net in Maro River, Merauke Regency. This study was conducted in Maro River, Merauke Regency from May to June 2014. It was conducted using survey method. The data analysis included: species composition, relative abundance, availability frequency, diversity index and dominance index. The results of showed 1,084 fish in 17 species with the following composition; 490 of Kurtus gulliveri species (37,01%), 212 of Eleutheronema tetradactylum species (20,33%), 170 of Polydactylus plebeius species (16,30%), 75 of crassilabris Cinetodus species (7,19%), 64 of Cinetodus froggatti species (6,14%), 37 of Argyrosomus amoyensis species (3,55%), 20 of Mugil cephalus species (1,92%), 15 of Megalops cyprinoides species (1,53%), 15 of Thryssa scratchleyi species (1,4%), 12 of Lebtobrama sp species (1,15%), 9 of Lates calcarifer species (0,86%), 7 of Marilyna meraukensis species (0,67%), 7 of Scomberomorus commerson species (0,67%), 5 of Nibea squamosal species (0,48%), 4 of Rhinoptera javanica species (0,38%), 3 of Harpadon microchir species (0,29%) and 1 of Datnioides campbelli species (0,10%). Based on the availability frequency, there are 37 species with a percentage of 100%, 37 species with 67% and 7 species with 33%. The diversity of fish has a moderate value of 1<H’<3. The obtained dominance index value is close to 0, then it is stated that there is no species found to be dominant.


2021 ◽  
Vol 4 (1) ◽  
pp. 80-87
Author(s):  
Rafiq Prima Nugraha ◽  
Irvina Nurrachmi ◽  
Sofyan Husein Siregar

The research was conducted in December 2019 at Sungai Mesjid Village Dumai Riau Province. This study aims were to know the condition of water quality, know the structure of the phytoplankton community, know the concentration of chlorophyll-a and know the effect between chlorophyll-a concentration and phytoplankton abundance in waters. The method used in this study was a survey method. The research location is divided into 3 station points namely Bangsal Aceh, Marine Station and Jalan Dermaga. The results showed that the quality of waters classified as oligotrophic waters. Phytoplankton found in this study consisted of 4 classes and 12 species of phytoplankton and the abundance of phytoplankton has a range between 195.57 - 244.33 ind./l. Diversity index (H') ranges from 1.2951 - 2.1705, dominance index (D) ranges from 0.24 to 0.46 and uniformity index (E) ranges from 0.7825 to 0.9551. The chlorophyll-a concentration in waters of Sungai Mesjid Village in Dumai ranged from 0.0025 to 0.0210 mg/L. Phytoplankton abundance and chlorophyll-a concentration has a moderate effect, wherewith increasing chlorophyll-a concentration, phytoplankton abundance will also increase


Author(s):  
Rima Nabilah Haifa ◽  
Zahidah Hasan ◽  
Heti Herawati ◽  
Isni Nurruhwati ◽  
Asep Sahidin

Jatigede Reservoir has water input from the Cimanuk River. This river has gone through several anthropogenic activities that can affect its waters. Changes in conditions can occur due to changes in ecosystems carried out by several ecological aspects, one of which is the distribution of biota structures. The purpose of this study is to map the distribution of phytoplankton through spatial distribution both horizontally and vertically at the Jatigede Reservoir, West Java. The study began in July 2019 until September 2019. This research uses survey method. Sampling was carried out at 4 stations on the surface, half of the compensation depth, and compensation depth. The water parameters analyzed are transparency, temperature, depth, current, pH, CO2, BOD, DO, NO3-, PO43-, NH3, fitoplankton abundance, diversity index and dominance index. The results showed that 49 genera from 11 classes and 5 phyla were identified. Diversity index during the study reached between 0.904-2.062 and the dominance index was in the range of 0.267-0.681. The highest phytoplankton composition at each station and depth was found in the Bacillariophyceae class as much as 59.65% with an average abundance of 5523 ind/L.11 phytoplankton classes found during the study were identified at all observation stations, except in the eustigmatophyceae and mediophyceae classes.


Author(s):  
Heti Herawati ◽  
Nisa Hidayati Fitri ◽  
Zahidah . ◽  
Asep Sahidin ◽  
Izza Mahdiana Apriliani ◽  
...  

The purpose of this research is to determine the condition of waters in the Citarik River with the periphyton community as a bio indicator. This research was conducted from March-April 2019. The research method used was a survey method at 4 station points, five times sampling with a span of 7 days. The smallest periphyton abundance is in station IV which is 22 ind/cm2 and the most is in station I which is 18278 ind/cm2. Comparison of species deficit values at each station is different, this is influenced by different physical and chemical parameters. The dominance index value in the waters of the Citarik River ranges from 0.1 to 0.8 and the diversity index value ranges from 0.2 to 0.9. The results showed the Citarik River was in a mildly polluted condition.


2020 ◽  
Vol 9 (3) ◽  
pp. 261-270
Author(s):  
Anantya Setya Perdana ◽  
Raden Ario ◽  
Hadi Endrawati

ABSTRAK: Muara Sungai Banjir Kanal Barat merupakan muara sungai terbesar di Semarang yang alirannya langsung menuju ke laut. Terdapat beberapa aktifitas yang terjadi di sepanjang aliran ini, diantaranya yaitu aktifitas industri dan pemukiman penduduk. Selain itu, adanya pembuangan limbah rumah tangga yang masuk ke dalam badan sungai yang juga berdampak bagi perubahan kualitas perairan serta kehidupan ekosistem di sepanjang aliran sungai tersebut. Fitoplankton merupakan organisme perairan yang keberadaannya dapat dijadikan sebagai indikator kualitas perairan. Penelitian ini bertujuan untuk mengetahui komposisi, kelimpahan, indeks keanekaragaman, indeks keseragaman, dan indeks dominasi fitoplankton di Muara Sungai Banjir Kanal Barat Semarang. Penelitian ini dilakukan pada Oktober-Desember 2019. Metode yang digunakan adalah metode deskriptif eksploratif. Pengambilan sampel dilakukan sebanyak tiga periode dengan interval dua minggu sekali di tiga stasiun. Stasiun 1 merupakan perairan air tawar, stasiun 2 merupakan muara dan stasiun 3 merupakan perairan air laut. Hasil penelitian menunjukkan bahwa terdapat 24 genus fitoplankton dari 3 kelas, yaitu 17 genus dari kelas Bacillariophyceae, 5 genus dari kelas Dinophyceae dan 2 genus dari kelas Cyanophyceae dengan kelimpahan terbesar terdapat pada Stasiun 3 sebesar 67669 sel/L dan terendah pada Stasiun 1 sebesar 52287 sel/L, indeks keanekaragaman termasuk kategori sedang. Indeks keseragaman termasuk dalam kategori tinggi, indeks dominansi termasuk dalam kategori tidak ada jenis yang mendominasi. Berdasarkan kriteria penilaian menurut Shannon – Wiener bahwa perairan tersebut tergolong ke dalam perairan tercemar sedang. ABSTRACT: The Banjir Kanal Barat River Canal is the largest river estuary in Semarang that flows directly to the sea. There are several activities that occur along this flow, including industrial activities and human settlements. In addition, the disposal of household waste that enters the river body also has an impact on changes in water quality and ecosystem life along the river flow. Phytoplankton is aquatic organisms whose existence can be used as indicators of water quality. This study aims to determine the composition, abundance, diversity index, uniformity index, and a dominance index of phytoplankton in the West Banjir Canal River Estuary in Semarang. This research was conducted in October-December 2019. The method used is a descriptive exploratory method. Sampling was conducted in three periods with biweekly intervals at three stations. Station 1 is freshwater waters, station 2 is estuary and station 3 is seawater waters. The results showed that there were 24 genera of phytoplankton from 3 classes, namely 17 genera from the Bacillariophyceae class, 5 genera from the Dinophyceae class and 2 genera from the Cyanophyceae class with the greatest abundance at Station 3 at 67669 cells/L and lowest at Station 1 at 52287 cells/L, the diversity index is in the medium category. Uniformity index is included in the high category, dominance index is included in the category of no species that dominates. Based on the evaluation criteria according to Shannon-Wiener that the waters are classified as medium polluted waters.


2021 ◽  
Vol 5 (1) ◽  
pp. 20-28
Author(s):  
Wahyu Muzammil ◽  
Nova Prihatin ◽  
Winny Retna Melani

Kampung Baru is an area on Bintan Island which is located in Sebong Lagoi Village, Teluk Sebong District, Bintan Regency, Riau Islands Province. This study aimed at determine the structure of the macrozoobenthos community, the condition of the physico-chemical parameters of the waters and the relationship between macrozoobenthos and water quality. This research was conducted using a survey method. Sampling site points of this study using random sampling method with 30 sampling site points at high and low tide. The parameters measured are physical, chemical and biological parameters of the water. The results showed that there were 18 species of macrozoobenthos consisting of 4 classes of macrozoobenthos and 3 phylum at 30 sampling site points, namely mollusca, annelida, and arthhopoda phylum. Based on the ecological index value, it is known that the macrozoobenthos species in Kampung Baru waters are still classified as low with disproportionate conditions. The values ​​of diversity index (low), uniformity index (high) and dominance index (low). Water quality of Kampung Baru waters at high tide still meet quality standards of Kepmen-LH No. 51 of 2004, but at low tide the values ​​of temperature, DO, and salinity parameters did not meet quality standards. The relationship between macrozoobenthos parameters and water quality using PCA analysis where density parameters have a relationship with two parameters, namely temperature and pH.


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