KEANEKARAGAMAN DAN KELIMPAHAN IKAN DI DANAU TES, BENGKULU SUATU UPAYA KONSERVASI SECARA IN-SITU

2008 ◽  
Vol 5 (1) ◽  
Author(s):  
Robi Binur

<p><em>The research of the diversity and abundance of fish had been done at Tes Lake at the province of Bengkulu by using in-situ conservation. Observation and collecting of samples had been done in the mid of August to the mid of November 2002. Collecting of samples was done in 4 stations. There are 21 species of fish included 18 genera and 12 families which had been caught using gillnet (jaring insang), cast net (jala), fish pot (lukah/bubuh), fishline (pancing/tajur), and dip net (serok). Cyprinidae is the fish family which has most variety (8 species), while other families have only 2 and 1 species. The species of fish which had been caught were mostly river fish (freshwater fish). Based on the index of diversity (H’), the diversity of fish is medium between   0.78 – 1.27 with the highest diversity index is at station I (1.27) and the lowest is at station IV (0.78). The spread of fish based on uniformity index (E) is about 0.33 – 0.49 with the highest uniformity index is at station III (0.49) and the lowest is at station IV (0.33). The total abundance of fish which are collected during the research is 13,030 with the highest abundance is at station IV (4,643 fish) and the lowest is at station III (1,171 fish). Species of fish that are abundance and predominant are Puntius binotatus (C.V.) and Osteochilus hasseltii (C.V.) compared with others. The value of CPUE is 2.75 kg/trip with the highest value of CPUE is at station IV (4.6 kg/trip) and the lowest are at station II and III (1.7 kg/trip). The water quality of Tes Lake is still able to fishes living and fishery. The kinds of fish which are really valuable economically but  it’s extinction being threatened are Anguilla marmorata Benn. and Tor douronensis (C.V.)</em>.</p>

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.


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.


2011 ◽  
Vol 17 (1) ◽  
pp. 107-115 ◽  
Author(s):  
Nada Babovic ◽  
Dejan Markovic ◽  
Vojkan Dimitrijevic ◽  
Dragan Markovic

This paper shows the results obtained in field analysis performed at the Tamis River, starting from the settlement Jasa Tomic - border between Serbia and Romania to Pancevo - confluence of Tamis into the Danube. The Tamis is a 359 km long river rising in the southern Carpathian Mountains. It flows through the Banat region and flows into the Danube near Pancevo. During the years the water quality of the river has severely deteriorated and badly affected the environment and the river ecosystem. In situ measurements enabled determination of physico-chemical parameters of water quality of the Tamis River on every 400 m of the watercourse, such as: water temperature, pH value, electrical conductivity, contents of dissolved oxygen and oxygen saturation. The main reason of higher pollution of Tamis is seen in connection to DTD hydro system. Sampling was performed at 7 points with regard to color, turbidity, total hardness, alkalinity, concentration of ammonium nitrogen, nitrite nitrogen, nitrate nitrogen, iron, chlorides and sulphates in samples. The aim of the present work was to evaluate water quality in the Tamis River taking into account significant pollution, which originates from settlements, industry and agriculture, and to suggest appropriate preventive measures to further pollution decreasing of the river's water.


2017 ◽  
Vol 3 (2) ◽  
pp. 104
Author(s):  
Dewi Elfidasari ◽  
Nita Noriko ◽  
Yunus Effendi ◽  
Riris Lindiawati Puspitasari

<div class="WordSection1"><p><em>Abstrak</em> - <strong>Situ Lebak Wangi merupakan situ yang berada di daerah Bogor, dan awalnya dimanfaatkan sebagai tempat penampungan air saat musim hujan untuk peningkatkan persediaan  air tanah.  Saat ini, Situ Lebak Wangi dimanfaatkan sebagai tempat pembuangan limbah oleh masyarakat. Hal ini dapat menyebabkan perubahan kualitas baik fisik, kimia dan biologi  perairan situ. Untuk itu perlu dilakukan penelitian terhadap kualitas fisik, kimia dan biologi perairan Situ Lebak Wangi agar diperoleh informasi mengenai kualitas perairannya sehingga dapat disosialisasikan kepada masyarakat di sekitarnya nilai penting konservasi, pengelolaan dan pemanfaatan situ tersebut. Hasil pengukuran sifat fisik dan kimia air menunjukkan bahwa suhu di perairan Situ Lebak Wangi masih memenuhi baku mutu air kelas 1, nilai total padatan terlarut perairan Situ masih di bawah ambang batas baku mutu yang dipersyaratkan, nilai kecerahan di perairan Situ Lebak Wangi berkisar antara 67,17 – 80,83 cm dengan nilai rata-rata 74,46 cm, nilai pH perairan danau lebih rendah dari perairan sungai, yaitu berkisar antara 6,60–8-80. Pengukuran DO menunjukkan bahwa di perairan danau konsumsi oksigennya lebih tinggi, sedangkan hasil BOD5 menunjukkan bahwa perairan Situ Lebak Wangi sudah tercemar oleh bahan organik mudah urai (BOD5). Nilai daya hantar listrik berkisar antara 112,0 – 118,0 µhos/cm. Hasil analisa kualitas air Situ Lebak Wangi secara keseluruhan menunjukkan bahwa perairan tersebut tidak layak untuk dijadikan sebagai air baku, karena mengandung bakteri patogen Salmonella-Shigella yang merupakan penyebab thypus dan kolera. </strong></p><p>                                                          </p><p><strong><em>Keata Kunci </em></strong> - kualitas fisik, kimia dan biologi; Situ Lebak Wangi; Perairan; Baku mutu air</p></div><br clear="all" /><p> </p><p><em>Abstract</em> - <strong>Situ Lebak Wangi is a place located in the Bogor area, and was originally used as a water reservoir during the rainy season to increase groundwater supply. Currently, Situ Lebak Wangi is used as a waste disposal site by the community. This can lead to changes in the quality of both physical, chemical and biological waters there. Therefore, research on the physical, chemical and biological qualities of waters of Situ Lebak Wangi to obtain information about the quality of the waters so that it can be socialized to the community around the importance of conservation, management and utilization of the site. The result of measurement of physical and chemical properties of water shows that the temperature in Situ Lebak Wangi waters still meet the water quality standard class 1, the total dissolved solids of waters Situ is still below the required quality standard threshold, the brightness value in Situ Lebak Wangi waters ranges between 67, 17 - 80.83 cm with an average rating of 74.46 cm, the pH value of the lake waters lower than river waters, which ranged from 6.60-8-80. Measurements of DO indicate that in lake waters oxygen consumption is higher, whereas BOD5 results show that waters Situ Lebak Wangi already contaminated by organic material easily explained (BOD5). The electrical conductivity values range from 112.0 - 118.0 μhos / cm. The result of Situ Lebak Wangi water quality analysis as a whole shows that the water is not feasible to serve as raw water, because it contains Salmonella-Shigella pathogen bacteria which is the cause of thypus and cholera.</strong></p><p><strong> </strong></p><p><strong><em>Keywords</em></strong><strong> - </strong><em>physical quality, chemistry and biology, </em><em>Situ Lebak Wangi, </em><em>Waters, Water quality standards</em><strong><em></em></strong></p>


2020 ◽  
Vol 1 (1) ◽  
pp. 75-82
Author(s):  
Yustani Leluno ◽  
Kembarawati ◽  
Basuki

The lack of clean water distribution by local water service (PDAM) of Palangka Raya city is the major reason for people around the final processing site/landfill (Tempat Pemrosesan Akhir) at Km 14 to use groundwater for their daily life. The landfill may cause pollution over groundwater known as leachate, which commonly unnoticed by its users. This study aims at assessing the quality of groundwater in that area. The groundwater was taken at different distances from the site in three rainless-days. The physical, chemical and biology parameters of groundwater are observed in the field (in situ) and analyzed in the laboratory, refers to water quality standard of Class I, according to Government Regulation No. 82 of 2001 and Minister of Health Regulation No. 32 of 2017. Public opinion on that issue is cached through interview. The results showed that the groundwater around the landfill in three rainless-days was harmless to be consumed as drinking water, and did not exceed the water quality standards stipulated by government in term of odorless, tasteless, and colorless. Some indicators also show that the groundwater meets the specified quality standards, i.e. TDS (17-68.14 mg/L), DHL (17,15-69.39 ?s), turbidity (0.11-2.50 mg/L), iron (0.227-0.71 mg/L), manganese (<0.0123-0.02 mg/L), coliform (<1.8-280 MPN/100 ml), while Pb and H2S were not detected. From community side, there are no any health complaints arise as long as they use the water.


2017 ◽  
Vol 14 (3) ◽  
pp. 253
Author(s):  
Siswanta Kaban ◽  
Husnah Husnah ◽  
Siti Nurul Aida

Penelitian ini dilakukan untuk mengetahui kualitas air Sungai Musi tahun 2007 sampai dengan 2008 di bagian tengah dan hilir berdasarkan pada sumber polutan. Empat belas stasiun pengambilan contoh ditetapkan sebagai sumber polutan seperti industri maupun pemukiman penduduk, dan referensi yang jauh dari industri maupun pemukiman yang digunakan sebagai pembanding. Pada setiap stasiun, pengambilan contoh dilakukan 3 kali waktu pengambilan, yaitu bulan April, Juni, dan Januari yang dapat mewakili 3 musim yang berbeda pada tahun tersebut. Beberapa parameter diukur in situ sementara beberapa lain dianalisis di laboratorium dengan standar methods (AWWAWEF, 2005). Dari hasil penelitian didapatkan bahwa industri yang bergerak di bidang pengolahan kelapa sawit dan karet cenderung menurunkan kualitas perairan di Sungai Musi. Kandungan logam berat dalam sedimen di Sungai Musi relatif rendah dengan kandungan Cr+6 dan Pb yang tertinggi masing-masing 13,481 dan 1,747 μg per g. Curah hujan cenderung menurunkan beberapa parameter fisika dan kimia kualitas perairan. Potensi pencemaran cenderung ditemukan di bagian hilir Sungai Musi, karena sebaran industri dan intensitas pemanfaatan perairan cukup tinggi di bagian sungai tersebut. Study in order to know distribution of pollution source and its effect on water quality of the middle and down stream of Musi River was conducted in April and June 2007 and January 2008. Fourteen sampling sites were selected based on the pollution source and the minimal degradation site (reference sites). Parameters observed were pollution source distribution and water and sediment parameters such as physical and chemical parameters. Water sample was collected at 0.5 m from water surface by using Kemmerer water sampler while sediment samples were taken by using Ekman grab. Some of the parameters were analyzed in situ while the rest were analyzed in laboratory. Results indicated that oil palm and rubber industries were mostly the pollution source in Musi River. Potential pollution source was mostly found in the middle and down stream of Musi River since most of pollution source and high water utilization found in this area. Water quality parameters except total suspended solid and biochemical oxygen demand, were still in the range that can be tolerated by the aquatic organisms. Rain fall tends to decrease water quality of the river. Concentration of heavy metal such as Chrom (Cr+6) and plumbum in the sediment were in still in low concentration with the highest concentration reaching 13.481 and 1.747 μg per g respectively.


2015 ◽  
Vol 39 (1) ◽  
pp. 31-37 ◽  
Author(s):  
Corry Yanti Manullang ◽  
Johannes Hutabarat ◽  
Ita Widowati

Estuarine of Kedungmalang has salinity variability and is assumed to bepolluted by cadmium (Cd) derived from human activities around Kedung region. In this study, bioaccumulation of Cd by white shrimp Penaeus merguienis in relation with salinity difference was determined. Sampling was conducted at four stations : estuary (15‰ and 25‰ of salinity) and husbandry area (15‰ and 25‰ of salinity). Data on in situ water quality parameters was obtained at each station. Absorption Atomic Spectrometer was used to measure Cd concentration. The water quality of parameters and the concentrations of Cd in the shrimp were compared with quality standards and weekly consumption limit of white shrimps is also suggested. The Cd concentrations on the white shrimp was found the highest concentration of 0.669 μg.g-1 . The limit comsumption of the white shrimp of Estuarine of Kedungmalang,suggested by the resut of this study, is about 523-1537 grams per week.


2015 ◽  
Vol 17 (1) ◽  
pp. 111
Author(s):  
Jeane O.K Tiwow ◽  
Herni E.I Simbala ◽  
Sendy Rondonuwu ◽  
Ratna Siahaan

STRUKTUR DAN KOMPOSISI FITOPLANKTON DI BAGIAN TENGAH DAN HILIR SUNGAI SALUESEM - SULAWESI UTARA ABSTRAK Sungai Saluesem berasal dari Gunung Mahawu melintasi Kota Manado sebelum bermuara di Teluk Manado, Sulwesi Utara. Penelitian dilakukan di bagian tengah dan hilir Sungai Salueseum, Sulawesi Utara dari April hingga November 2014. Penelitian ini bertujuan untuk menganalis ke struktur dan komposisi fitoplankton di bagian tengah dan hilir Sungai Saluesem, Sulawesi Utara. Penelitian menggunakan metode purposive random sampling untuk menentukan lokasi penelitian. Dua stasiun penelitian disebarkan di tiap bagian sungai. Sebanyak tiga ulangan dilakukan di tiap stasiun. Total banyaknya sampel yaitu dua belas (2x2x3) sampel yang diperoleh dengan plankton net ukuran 30 mesh. Hasil penelitian menunjukkan bahwa fitoplankton yang didapatkan di bagian tengah Sungai Saluesem sebanyak 399 individu, 28 spesies dan 3 kelas.  Fitoplankton yang didapatkan di bagian hilir Sungai Saluesem sebanyak 913 individu, 26 spesies dan 4 kelas. Kelas fitoplankton yaitu Bacillariophyceae, Chlorophyceae dan Cyanophyceae dan Euglenophyceae. Kelas Bacillariophyceae merupakan kelas yang memiliki kepadatan tertinggi di bagian tengah dan hilir berturut-turut yaitu 4067 individu/m3 (81%) dan 14950 individu/m3 (95%). Indeks keanekaragaman di bagian tengah dan hilir termasuk keanekaragaman sedang dengan nilai H’ bagian tengah  (H’: 2,88) dan hilir (H’: 2,64). Distribusi species fitolankton di bagian tengah dan hilir merata dengan Indeks Kemerataan (E)  berturut-turut yaitu 0,87  dan 0,81.  Tidak ada species fitoplankton di bagian tengah yang mendominansi dengan nilai Indeks Dominansi (D) mendekati nol (0,222). Beberapa species fitoplankton di bagian hilir mendominansi dengan nilai Indeks D mendekati satu (0,544). Kualitas air Sungai Saluseum di bagian tengah dan hilir dikategorikan tercemar ringan. Kata kunci : Sungai Saluesem, struktur fitoplankton, komposisi fitoplankton, kualitas air, Sulawesi Utara. STRUCTURE AND COMPOSITION OF PHYTOPLANKTON OF MIDDLE AND DOWNSTREAM SALUESEUM RIVER, NORTH SULAWESI ABSTRACT Saluesem River originated from Mahawu Mount crosses the Manado City before down to Manado Bay, North Sulwesi. The study was conducted in the middle and lower part of Salueseum River, North Sulawesi from April to November 2014. This study aims to analyze the structure and composition of the phytoplankton at the middle and lower part of the River Saluesem, North Sulawesi. Research used purposive random sampling to choose researc locations. Two research stations were distributed in each part of the river. A total of three replications performed at each station. The total number of samples that were twelve (2x2x3) samples by plankton net 30 mesh. The results showed that phytoplankton at the middle as 399 individuals, 28 species and 3 classes. Phytoplankton were at down as 913 individuals, 26 species and 4 classes i.e.  Bacillariophyceae, Chlorophyceae and Cyanophyceae and Euglenophyceae. Bacillariophyceae has the highest density at the middle and downstream respectively were 4067 individuals/m3 (81%) and 14950 individuals/m3 (95%). Diversity index (H’) at middle and downstream were classified into middle diversity with index respectively 2.88 and 2.64. Evenness index (E) at middle and down respectively were 0.87 and 0.81 showed that phytoplankton distributed equally. Some species at middle were dominant (D:0.222) but not at downstream (D: 0,544). Water quality of middle and downstream Saluseum River were classified into light pollution. Keyword: Saluesem River, structure phytoplankton, composition phytoplankton, water quality, North Sulawesi.


2020 ◽  
Vol 37 (4) ◽  
pp. 397-407
Author(s):  
Ozge Basoren ◽  
Nilgün Kazancı

Yeşilırmak River is one of the most important running waters of Turkey, but the water quality of this river has been affected by agricultural and domestic pollution. Dams and hydroelectric power plants also threaten the habitat quality and biodiversity of the river. This research contains investigation of Diptera fauna in Yeşilırmak River and tributaries, determination ecological characteristics of the collecting sites according to System A and System B Classification of Water Framework Directive (WFD), assessment of water quality of the studied sites by measuring the physicochemical variables (water temperature, pH, electrical conductivity, dissolved oxygen, NO2-N, NO3-N, NH4-N, PO4-P) and using some metrics (abundance, number of taxa, Simpson Diversity Index, Shannon-Wiener Diversity Index, Margalef Diversity Index, Evenness). Thirty-three (33) sites were sampled from Yeşilırmak River and its tributaries in June 2010. Diptera individuals were detected in 20 of them. Two thousand four hundred forty-five (2445) individuals belonging to 12 families and 16 taxa were identified in 20 sampling sites. The water quality classes of the studied sites were Class III (moderate pollution) and Class IV (heavily pollution) according to values of physicochemical variables.


Jurnal Segara ◽  
2016 ◽  
Vol 12 (2) ◽  
Author(s):  
Hadiwijaya L. Salim ◽  
Dini Purbani ◽  
Agustin Rustam ◽  
Yulius ◽  
Devi D. Suryono ◽  
...  

Healthy coral reefs depends on the quality of the waters , so that research and monitoring of water quality becomes important. This research attempt to asses marine waters quality at kaledupa island and it’ s surrounding waters on October and November 2014. 33 In-situ samples were collected using multiparameters tool purposively which are categorized into  physical parameters (temperature, turbidity and clarity), and chemical parameters (DO, salinity and pH). Waters quality defined by STORET method based on Ministry of Living Environment decree number 115 year of 2003. Analysis geographically has been conducted to describe distribution of waters quality spatially. The result shows that Kaledupa waters has sustain slightly pollution, especially on DO, turbidity, temperature and salinity parameters which have deviated from standard values. The light pollution in Kaledupa waters is suspected caused by the entry of abundance organic matter and shallow bathymetry.


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