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All Journal HAYATI Journal of Biosciences Jurnal Teknologi Perikanan dan Kelautan Jurnal Ilmu dan Teknologi Kelautan Tropis Jurnal Ilmu-Ilmu Perairan dan Perikanan Indonesia Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences POSITRON BIOTROPIA - The Southeast Asian Journal of Tropical Biology Surya Octagon Interdisciplinary Journal of Science and Technology JMM (Jurnal Masyarakat Mandiri) Marine Research in Indonesia International Journal of Remote Sensing and Earth Sciences (IJReSES) Makara Journal of Science Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Alan Frendy Koropitan
Department Of Marine Science And Technology, Faculty Of Fisheries And Marine Sciences, IPB University, Bogor, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Immunology & microbiology Library & Information Science Physics Social Sciences Veterinary Other

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Journal : Makara Journal of Science

 1 
Study of Heavy Metal Distribution and Hydrodynamic Simulation in Green Mussel Culture Net, Cilincing Water-Jakarta Bay Koropitan, Alan Frendy; Cordova, Muhammad Reza
Makara Journal of Science Vol. 21, No. 2
Publisher : UI Scholars Hub

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Abstract

This study aimed to investigate the heavy metals distribution inthesurrounding area of green mussel culture net,Cilincing water, Jakarta Bay,and its distribution behavior. The water sampling was carried out during the ebb tide. The heavy metal concentration was then measured by using atomic absorption spectroscopy (AAS). In order to understand the water circulation behavior related to heavy metal distribution in the study area, thePrinceton Ocean Model was applied, and the model design was developed based ona scenario ofanopen canal in theeastern and western sides, while the center canal wasplaced withnet cages in the water column resembling the green mussel culture net. The observed heavy metal distribution showed an intensified concentration in the green mussel culture location. The observed water current also showed a reduced velocity in the location. The modeling approach could explain the water circulation behavior in response to the presence of net units in the water column. In this case, the density of net units for green mussel culture potentially produced shear stress in the water column, which affected the flow pattern and the distribution of heavy metals. Therefore, the existence of green mussel culture nets has a potential to become a trap for pollutant distribution in the water.
Vertical Distribution and Flux of Nutrients in the Sediments of the Mangrove Reclamation Region of Muara Angke Kapuk, Jakarta Purwiyanto, Anna Ida Sunaryo; Prartono, Tri; Koropitan, Alan Frendy
Makara Journal of Science Vol. 16, No. 3
Publisher : UI Scholars Hub

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The reclaimed mangrove estuary in Muara Angke Kapuk is a reclaimed area that has not evaded the impacted of pollution and waste in the areas surrounding Cengkareng, Jakarta. This is apparent from the fact that almost all sediments under the mangrove trees are buried under heaps of plastic trash. However, the reclaimed region still has variety of organism, which indicating that the region still has an internal carrying capacity, especially nutrients from sediment. The purpose of this research was to examine the condition of sediment nutrients in this mangrove reclamation region. The research was conducted by taking water samples using a modification of the stratified cup at a sediment depth of 0-15 cm with depth intervals of 2.5 cm, and taking sediment samples using the sediment ring. Pore water samples were measured for dissolved oxygen (DO) and concentrations of ammonia, nitrite, nitrate, and phosphate. Sediment samples were used to obtain porosity values. The data obtained is used to make vertical concentration profiles and analysis of vertical nutrient flux. Vertical nutrient flux analysis was performed with the aid of QUAL2K software version 2.11. The results showed different vertical distributions and flux of nutrients, where influx for ammonia and phosphate and an increase in line with increasing sediment depth, while nitrate efflux and a decreased concentration. The flux calculation of nitrite as transitory nutrient was not done, but the concentration decreased after a depth of 2.5 cm. This indicates that the high contamination on the surface does not prevent the natural chemical processes so the reclaimed region can still provide nutritional support for its organism.
Co-Authors Afdal Afdal, Afdal Agus Atmadipoera Agus Ramli Agustiadi, Teguh Ali Arman Ali Arman Lubis Am Azbas Taurusman Amir Yarkhasy Yuliardi Andis K Nugraha ANIK KUSMIATUN Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Ario Damar Asep Sandra Budiman Asep Sandra Budiman Beginer Subhan Dewy Septiyanti Yolanda DIAH AYU SATYARI UTAMI Dietriech Geoffrey Bengen Faisal Hamzah Haeruddin Haeruddin Hanif Budi Prayitno Harpasis S Sanusi Hartanto, Mochamad Tri Harvianto, Loecky Hawis H Madduppa I Gede Hendrawan I Gusti Ayu Budiadnyani I Made Aditya Nugraha I Wayan Nuarsa I Wayan Nurjaya Ibrahim Kholilullah Ibrahim Kholilullah Idris, Muhamad Kemal Ilham Ilham Imalpen Imalpen Imalpen, Imalpen Intan Sari Dewi, Intan Sari Ivonne M. Radjawane Ivonne M.Radjawane Ivonne M.Radjawane Khaldun, Muhammad Hafidz Ibnu Kusumaningsih, Alvianita Lestari Minsaris, La Ode Alam Mohammad Khotib Mohammad Tri Hartanto Muhamad Riza Kurnia Lubis Muhammad Reza Cordova Muhammad Reza Cordova, Muhammad Reza Muhammad Taufik Mulia Purba Mulia Purba Nabil NEVIATY PUTRI ZAMANI Novi Susetyo Adi, Novi Susetyo Paputungan, Mohammad Sumiran Parengkuan, Maxi Purwanto, Budi Rastina Rastina, Rastina Roza Yusfiandayani Sabhan Sabhan Safwan Hadi Safwan Hadi Tia Nuraya Tri Prartono Vincentius Siregar Wahyudi, A'an J. Wahyudi, A’an Johan WAYAN SANDI Widodo S Pranowo YASUHIRO SUGIMORI Yuli Naulita Yulianto Suteja Yunita A. Noya