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	<title>Trophic states assessed from abundance of phythoplankton and chlorophyl-a content in Raman Resevoir  Metro, Lampung Province | Insani | Tomini Journal of Aquatic Science</title>
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	<meta name="DC.Creator.PersonalName" content="Aulia Insani"/>
	<meta name="DC.Creator.PersonalName" content="Herman Yulianto"/>
	<meta name="DC.Creator.PersonalName" content="Putu Cinthia Delis"/>
	<meta name="DC.Date.created" scheme="ISO8601" content="2021-05-25"/>
	<meta name="DC.Date.dateSubmitted" scheme="ISO8601" content="2021-03-04"/>
	<meta name="DC.Date.issued" scheme="ISO8601" content="2021-07-27"/>
	<meta name="DC.Date.modified" scheme="ISO8601" content="2021-09-19"/>
	<meta name="DC.Description" xml:lang="en" content="Raman reservoir is located at north of Metro City, Lampung. The water resources of the reservoir comes from Way Bunut and Way Raman rivers. The Way Bunut and Way Raman rivers flow into the Raman reservoir which is used for a variety of human activities, including fish farming with the floating net cage system, tourism, and agriculture. These activities produce organic and inorganic materials into the waters so that it may cause changes in water quality and trophic states levels, therefore research is carried out on the trophic states based on the abundance of phytoplankton and chlorophyll-a content in the waters of the Raman Reservoir. The purpose of this study was to assess the trophic states of the Raman Reservoir based on the abundance of phytoplankton, chlorophyll-a concentration, and Nygaard Index. This research was conducted in January-March 2020. The data was collected using purposive sampling method. The parameters used in this study were abundance of phytoplankton, chlorophyll-a, primary productivity, brightness, depth, temperature, DO, pH. Trophic states results based on the concentration of chlorophyll-a in the morning range from 0.0007 - 0.0274 mg/L while at noon it ranges from 0.0083-0.0769 mg/L. The results of these measurements can be categorized as chlorophyll-a content in Raman Resevoir was still in the category oligotrophic. The results of trophic states based on the Nygaard index it shows the category of eutrophic."/>
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	<meta name="DC.Source.Volume" content="2"/>						<meta name="DC.Subject" xml:lang="en" content="Trophic States"/>
								<meta name="DC.Subject" xml:lang="en" content="Raman Resevoir"/>
								<meta name="DC.Subject" xml:lang="en" content=" Abundance of Phytoplankton"/>
								<meta name="DC.Subject" xml:lang="en" content="Chlorophyll-a"/>
								<meta name="DC.Subject" xml:lang="en" content="Nygaard Index"/>
				<meta name="DC.Title" content="Trophic states assessed from abundance of phythoplankton and chlorophyl-a content in Raman Resevoir  Metro, Lampung Province"/>
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        <meta name="citation_author" content="Aulia Insani"/>
        <meta name="citation_author_institution" content="University of Lampung"/>
        <meta name="citation_author" content="Herman Yulianto"/>
        <meta name="citation_author_institution" content="University of Lampung"/>
        <meta name="citation_author" content="Putu Cinthia Delis"/>
        <meta name="citation_author_institution" content="University of Lampung"/>
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								<meta name="citation_keywords" xml:lang="en" content=" Abundance of Phytoplankton"/>
								<meta name="citation_keywords" xml:lang="en" content="Chlorophyll-a"/>
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	<div id="articleTitle"><h3>Trophic states assessed from abundance of phythoplankton and chlorophyl-a content in Raman Resevoir  Metro, Lampung Province</h3></div>
	<div id="authorString"><em>Aulia Insani, Herman Yulianto, Putu Cinthia Delis</em></div>
	<br />
			<div id="articleAbstract">
		<h4>Abstract</h4>
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		<div>Raman reservoir is located at north of Metro City, Lampung. The water resources of the reservoir comes from Way Bunut and Way Raman rivers. The Way Bunut and Way Raman rivers flow into the Raman reservoir which is used for a variety of human activities, including fish farming with the floating net cage system, tourism, and agriculture. These activities produce organic and inorganic materials into the waters so that it may cause changes in water quality and trophic states levels, therefore research is carried out on the trophic states based on the abundance of phytoplankton and chlorophyll-a content in the waters of the Raman Reservoir. The purpose of this study was to assess the trophic states of the Raman Reservoir based on the abundance of phytoplankton, chlorophyll-a concentration, and Nygaard Index. This research was conducted in January-March 2020. The data was collected using purposive sampling method. The parameters used in this study were abundance of phytoplankton, chlorophyll-a, primary productivity, brightness, depth, temperature, DO, pH. Trophic states results based on the concentration of chlorophyll-a in the morning range from 0.0007 - 0.0274 mg/L while at noon it ranges from 0.0083-0.0769 mg/L. The results of these measurements can be categorized as chlorophyll-a content in Raman Resevoir was still in the category oligotrophic. The results of trophic states based on the Nygaard index it shows the category of eutrophic.</div>
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		<h4>Keywords</h4>
		<br />
		<div>Trophic States; Raman Resevoir;  Abundance of Phytoplankton; Chlorophyll-a; Nygaard Index</div>
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		</div>
	
				
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		<h4>Full Text:</h4>
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		<h4>References</h4>
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							<p>Effendi, H. (2003). Telaah Kualitas Air: Bagi Pengelolaan Sumber Daya dan Lingkungan Perairan. Penerbit: Kanisius. Yogyakarta.</p>
							<p>Goldman, C.R dan A.J. Horne. (1983). Limnology. Mac Graw Hill Int. Book Company. Tokyo. 464 hlm</p>
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							<p>Khaqiqoh, N., Purnomo, P., W., dan Hendrarto, B. (2014). Pola Perubahan komunitas fitoplankton Di Sungai Banjir Kanal Barat Semarang berdasarkan pasang surut. Diponegoro Jourrnal Of Mawuares, 3(2), 92-101.</p>
							<p>Marganof. (2007). Model Pengendalian pencemaran perairan di Danau Maninjau Sumatra Barat. IPB. Bogor.</p>
							<p>Merina, G., I. J. Zakaria, dan Chairul. (2016). Produktivitas primer fitoplankton dan analisis fisika kimia di Perairan Laut Pesisir Barat Sumatera Barat. Jurnal Metamorfosa. 3(2), 112-119.</p>
							<p>Nygaard, G., (1949). Hydrobiological Studies of Some Danish Ponds and Lakes, Part II: The Quotient Hypothesis and Some New of Little Known Phytoplankton Organisms, Kgl. Danske Videnskab. Selskab. Biol Skrifter, 7(1), 1-293.</p>
							<p>Parslow, J., J. Hunter and A. Davidson. (2008). Estuarine Eutrophication Models. Final Report Project E6. National River Health Program. Water Services Association of Australian Melbourne Australia.</p>
							<p>Praseno, D.P dan Sugestiningsih. (2000). Retaid di Perairan Indonesia. P3O-LIPI. Jakarta. Hal: 2-34.</p>
							<p>Rahman., E.,C. Masyamir. Dan Rizal., A. (2016). Kajian variabel kualitas air dan hubungannya dengan produktivitas primer fitoplankton di perairan waduk darma jawa barat. Jurnal Perikanan Kelautan. 7(1), 93-102</p>
							<p>Rikardo, I. (2016). Keragaman Fitoplankton Sebagai Indikator Kualitas Perairan Muara Sungai Jang Kota Tanjungpinang.Skripsi. Program Studi Manajemen Sumberdaya Perairan. FKIP. Universitas Maritim Raja Ali Haji, Kepulauan Riau.</p>
							<p>Sihombing, I., N., Hutabarat, S., dan Sulardiono. B. (2015). Kajian kesuburan perairan berdasarkan unsur hara (N,P) dan itoplankton di Sungai Tulung Demak. Diponegoro Journal of Maquares, 4(4), 119-127</p>
							<p>Susanti H. (2012). Produksi protein dan antosianin pucuk kolesom (talinum triangulare (jacq) willd) dengan pemupukan nitrogen dan interval panen. Jurnal Agrivita, 7(2), 5-6.</p>
							<p>Wirasatriya, A. (2011). Pola distribusi klorofil-a dan total suspended solid (tss) di teluk Toli-toli Sulawasi. Buletin Oseanografi Marina. (1), 137–149</p>
							<p>Yazwar. (2008). Keanekaragaman Plankton dan Keterkaitannya dengan Kualitas Air di Parapat Danau Toba. Tesis tidak diterbitkan. Medan: Sekolah Pascasarjana Universitas Sumatera Utara USU Repository.</p>
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		<br />
		DOI: <a id="pub-id::doi" href="https://doi.org/10.37905/tjas.v2i1.10160">https://doi.org/10.37905/tjas.v2i1.10160</a>																																						


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