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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Proceeding Simposium Nasional Kelautan dan Perikanan Jurnal Pengelolaan Perairan
Rahmadi Tambaru
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Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Library & Information Science

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DISSOLVED SILICATE IN COASTAL WATER OF SOUTH SULAWESI Muhammad Lukman; Andriani Nasir; Khairul Amri; Rahmadi Tambaru; Muhammad Hatta; Nurfadilah Nurfadilah; Rahmat Januar Noer
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 6 No. 2 (2014): Electronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (352.531 KB) | DOI: 10.29244/jitkt.v6i2.9022

Abstract

ABSTRACT Dissolved silicate (DSi) in coastal waters plays a crucial role in phytoplankton growth particularly diatom. This study aimed to determine DSi concentration seasonally in waters of the western coast of South Sulawesi in relation to coastal water quality indicator. Water, chlorophyll-a, and diatom samples were collected from the coastal areas of the Tallo-Makassar, Maros, and Pangkep, in April 2013 (transitional season), June 2013 (dry season), and February 2014 (wet season). Factorial analysis of variance was used to identify significant seasonal and temporal variations, and linear regression was used to test the relationship of chlorophyll-a and diatom abundance to DSi concentrations. The results showed that the DSi concentration was higher in the wet season of 35.2-85.2 µM than in the other seasons (transitional season: 10.8-68.4 µM, dry season: 9.59-24.1 µM). The abundance of diatoms during the transitional season reached ~9.7x107 cell/m3 in the Pangkep river, 2.3x107 cell/m3 in the Tallo river, and 1.3 x 107 cell/m3 in the Maros river. Chaetoceros, Nitzschia, and Rhizosolenia dominated the diatom composition. The mean concentration of chlorophyll-a in the Makassar coastal waters was 4.52±4.66 mg/m3, while in the Maros and Pangkep waters of 1.40±1.06, and 2.72±1.94  mg/m3, respectively. There was no strong linear corelation between DSi and diatom abundances, nor chlorophyll-a. These results suggested that DSi become a non-limiting factor for the diatom growth and potentially reduce the water quality via eutrophication and diatom blooms. Keywords: dissolved silicate, diatom, chlorophyll-a, coastal waters, South Sulawesi
Analisis Kualitas Perairan di Wilayah Reklamasi: Tinjauan pada Perairan Pantai Seruni, Kabupaten Bantaeng Rahmadi Tambaru; Khairul Amri; Taufik Hidayat
Prosiding Simposium Nasional Kelautan dan Perikanan Vol. 5 (2018): PROSIDING SIMPOSIUM NASIONAL V KELAUTAN DAN PERIKANAN UNHAS
Publisher : Fakultas Ilmu Kelautan dan Perikanan (FIKP), Universitas Hasanuddin

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Abstract

Dalam pasal 1 Butir 23 UU Nomor 01 tahun 2014 perubahan atas UU nomor 27 tahun 2007, reklamasi diartikan sebagai kegiatan yang dilakukan untuk meningkatkan manfaat sumber daya lahan ditinjau dari sudut lingkungan dan sosial ekonomi dengan cara pengurugan, pengeringan lahan atau drainase. Dalam perkembangannya, banyak kasus yang terjadi sebagai akibat dari pelaksanaannya yang tidak mengikuti kaidah-kaidah lingkungan yang tepat. Pada kasus reklamasi pantai misalnya, perubahan kualitas perairan di sekitar lokasi kegiatan dapat saja terjadi sebagai akibat dari pelaksanaan yang tidak sesuai dengan kaidah lingkungan, pada akhirnya memberikan pengaruh terhadap kehidupan organisme seperti fitoplankton. Untuk mencermati hal itu, telah dilakukan suatu penelitian untuk mencermati perubahan kualitas perairan pantai pada wilayah yang direklamsi. Penelitian dilaksanakan pada bulan Maret sampai Mei 2017 di perairan Pantai Seruni Kabupaten Bantaeng di mana pada perairan ini pernah dilakukan kegiatan reklamasi. Berdasarkan hasil penelitian, ternyata bahwa nilai parameter kualitas perairan seperti suhu, salinitas, derajat keasaman (pH), kecerahan perairan, kecepatan arus, Total Suspended Solid (TSS) dan oksigen terlarut (DO) secara umum berada dalam kisaran yang masih bersesuaian dengan kehidupan fitoplankton. Hal ini berarti, untuk kasus kegiatan reklamasi yang dilaksanakan di perairan pantai Seuni Kabupaten Bantaeng tidak banyak merubah kualitas perairan. Kata kunci: Pantai, Reklamasi, Kualitas air, Bantaeng 
Kajian pendahuluan pendugaan cepat densitas Spirulina sp dengan turbiditimeter untuk studi ekotoksikologi di era revolusi industri 4.0 (Preliminary study of quick assessment of Spirulina sp density using turbiditymeter for ecotoxicological studies in 4.0 industrial revolution era) Khusnul Yaqin; Nur Fadhilah Rahim; Liestiaty Fachruddin; Rahmadi Tambaru
Jurnal Pengelolaan Perairan Vol. 2 No. 1 (2019)
Publisher : Program Studi Manajemen Sumber Daya Perairan

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Abstract

Estimating the number of phytoplankton is something important in the field of aquatic science, including the field of aquatic ecotoxicology. Turbiditimeter is a device that can determine the level of turbidity of the water both caused by non-organic and organic matter, such as phytoplankton. Preliminary research has been conducted to estimate the number of phytoplankton, Spirulina, using turbiditymeter. The results showed that the correlation between the number of Spirulina which was directly estimated using the haemocytometer and the turbidity level detected by the turbiditimeter was statistically very strong and significant statistically (R = 0.9762 and S = 0.012). The linear equations of the correlation can be used to estimate the number of Spirulina with an error of 4.17-20.99% indirectly.  The conclusion of this study is that turbiditimeter can be used to predict the number of phytoplankton indirectly.Keywords : Quick assesment, ecotoxicology, Spirulina sp, turbidimetry, revolution, industry 4.0
Co-Authors Andriani Nasir Khairul Amri KHUSNUL YAQIN Liestiaty Fachruddin Muhammad Hatta Nur Fadhilah Rahim Nurfadilah Nurfadilah Rahmat Januar Noor Rilus Kinseng Taufik Hidayat