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All Journal Jurnal Ilmu dan Teknologi Kelautan Tropis Maspari Journal Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences BULETIN OSEANOGRAFI MARINA Omni-Akuatika Journal of Marine Research and Technology Journal of Aquaculture and Fish Health
Yulianto Suteja
Program Studi Ilmu Kelautan, Fakultas Kelautan Dan Perikanan, Universitas Udayana, Bukit Jimbaran, Bali 80361
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Environmental Science Immunology & microbiology Library & Information Science

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Journal : Jurnal Ilmu dan Teknologi Kelautan Tropis

 1 
TURBULENT MIXING IN OMBAI STRAIT Yulianto Suteja; Mulia Purba; Agus S. Atmadipoera
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 7 No. 1 (2015): Elektronik 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 (704.301 KB) | DOI: 10.29244/jitkt.v7i1.9778

Abstract

Ombai Strait is one of the exit passages of Indonesian Throughflow (ITF) which conveys hotspot of strong internal tidal energy. Internal tide is the one of main energy which causes mixing processes in the oceans and could lead to changes in water mass characteristics. The purpose of this research was to estimate the turbulent mixing by using Thorpe analysis. Nine CTD cast were obtained for one tidal cycle (24 hours) in Ombai Strait. The results showed the average value of the turbulent mixing is 833.5 x 10-4 m2s-1, the highest found in deep homogeneous layer (2383.4x 10-4 m2s-1), followed by mixed surface layer (103.0 x 10-4 m2s-1) and thermocline (14.2 x 10-4 m2s-1). This Turbulent mixing value is much higher than the previous measurement in Indonesian Sea. This is presumably due to the strong internal tidal energy and its interaction with existing deep sill in Ombai Strait. Keywords: Indonesian throughflow (ITF), Ombai Strait, turbulent mixing
KONDISI NITRAT, NITRIT, AMONIA, FOSFAT DAN BOD DI MUARA SUNGAI BANYUASIN, SUMATERA SELATAN Wike Ayu Eka Putri; Anna Ida Sunaryo Purwiyanto; . Fauziyah; Fitri Agustriani; Yulianto Suteja
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 11 No. 1 (2019): 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 (547.775 KB) | DOI: 10.29244/jitkt.v11i1.18861

Abstract

ABSTRAKPesisir Banyuasin merupakan salah satu sentra perikanan tangkap di Provinsi Sumatera Selatan. Kawasan ini menyimpan potensi sumber daya perikanan yang harus dijaga kelestariannya. Banyak nelayan yang menggantungkan hidupnya di kawasan ini, hanya saja ragam pemanfaatan di sepanjang aliran Sungai Banyuasin seperti pemukiman, industri, pertanian dan transportasi telah mempengaruhi kualitas perairan. Penelitian ini bertujuan untuk mengkaji bagaimana kondisi nitrat, nitrit, amonia, fosfat dan BOD di Pesisir Banyuasin. Pengambilan sampel dilakukan pada bulan September 2017 meliputi 22 stasiun penelitian, analisa sampel dilakukan di Laboratorium Balai Riset dan Standardisasi Industri (Baristand) Palembang merujuk pada SNI. Hasil penelitian menunjukkan konsentrasi nitrat selama penelitian berkisar antara 0,025-3,21 mg/L, nitrit 0,002-0,093 mg/L, amonia 0,002-0,031 mg/L, fosfat 0,011-0,231 mg/L dan BOD 2,14-8,73 mg/L. Konsentrasi nitrat dan fosfat telah melebihi baku mutu yang ditetapkan, adapun untuk parameter nitrit, amonia dan BOD masih dibawah baku mutu. ABSTRACTCoastal of Banyuasin is one of the centers of capture fisheries in South Sumatra Province. This area had the potential of fisheries resources that must be preserved. Many fishermen are depend their lives on this area, but some activity along Banyuasin River such as settlement, industry, agriculture and transportation has affected the quality of water. This study aims to examine the conditions of nitrate, nitrite, ammonia, phosphate and BOD in the Coastal of Banyuasin. Sampling was conducted in September 2017 covering 22 research stations, sample analysis conducted at Palembang Institute for Industrial Research and Standaritation Laboratory refers to SNI. The results showed that the concentration of nitrate during the study ranged from 0.025-3.21 mg.L-1, nitrite 0.002-0.093 mg.L-1, ammonia 0.002-0.031 mg.L-1, phosphate 0.011-0.231 mg.L-1and BOD 2.14-8.73 mg.L-1. The concentration of nitrate and phosphate in Banyuasin River estuary were exceeded quality standards while nitrite, ammonia and BOD were still below specified quality standards.
Co-Authors Abd. Rahman As-syakur Ade Riestiari Sudarmawan Afdal Afdal, Afdal Agus Atmadipoera Alan Frendy Koropitan Angginie Adjeng Ayoe Gigih Pangesthu Ani Haryati Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Anna IS Purwiyanto Annassita Gianie Artha C. Rosevina Anak Ampun Barus, Beta Susanto Boiris Benet Sinaga Dadang Karmen Dietriech Geoffrey Bengen Dika Madyawan Dwi Budi Wiyanto Faisal Hamzah Fauziyah Fitri Agustriani Gede Surya Indrawan Gusti Diansyah Hanif Budi Prayitno Hasanuddin Parulian Sihombing I Dewa Nym. Nurweda P., I Gede Dananjaya Bagaskara I Gede Ening Sumantra I Gede Hendrawan I Gede Merta Yoga Pratama I Gede Surya Risuana I Gusti Agung Bagus Wisesa Sastra I Gusti Agung Gede Bayu Gita Damara I Gusti Bagus Sila Dharma I Gusti Ngurah Putra Dirgayusa I Kadek Vidyananda S Rahadiarta I Made Dharma Raharja I Made Putra Kresnabayu I Putu Dede Charles Dharma Saputra I Putu Ranu Fajar Maharta I Wayan Gede Astawa Karang Ira Fitriana Isnaini Isnaini Lilik Maslukah Lumban Nauli Lumban Toruan M AK Pirazuni Meiyerani, Jeni Melki Melki Mulia Purba Ni Kadek Dian Prinasti Ni Luh Eta Yuspita Ni Luh Novita Aryanti Ni Nyoman Desi Kusuma Dewi Ni Wayan Sukma Taraning Rahayu Novi Susetyo Adi, Novi Susetyo Purba, Sindi Krisanti Putra, I Nyoman Giri Putu Eddy Purna Wijaya Putu Maya Witariningsih Rastina, Rastina Riska Eka Putri Sabil Al Alif Sitorus, Rijal Suprabadevi Ayumayasari Saraswati Tiara Permata Sari TZ Ulqodry Wahyudi, A’an Johan Widiastuti Karim Widiastuti Karim Widiastuti Widiastuti Wike AE Putri Wike Ayu Eka Putri Yesie Rahayu Ananingtyas