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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 ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Ilmu Lingkungan Berkala Perikanan Terubuk POSITRON Jurnal Ilmiah Aplikasi Isotop Radiasi BIOTROPIA - The Southeast Asian Journal of Tropical Biology AL KAUNIYAH Jurnal Perikanan dan Kelautan Jurnal Kelautan Tropis JURNAL ENGGANO Omni-Akuatika Biosaintifika: Journal of Biology & Biology Education Jurnal Penelitian Perikanan Indonesia Jurnal Iktiologi Indonesia (Indonesian Journal of Ichthyology) International Journal of Remote Sensing and Earth Sciences (IJReSES) Jurnal Geologi Kelautan: Media Hasil Penelitian Geologi Kelautan JURNAL PERIKANAN TROPIS Makara Journal of Science The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Tri Prartono
Marine Sciences Department, Faculty Of Fisheries And Marine Sciences, Bogor Agricultural University, Bogor, Indonesia Jln. Agatis, Kampus IPB Dramaga Bogor 16680 Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Veterinary Other

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LAJU AKUMULASI SEDIMEN MANGROVE DI TANJUNG BATU, KEPULAUAN DERAWAN KALIMANTAN TIMUR Dewi, Intan Sari; Prartono, Tri; Arman, Ali; Koropitan, Alan Frendy
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 12 No. 2 (2020): 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 | DOI: 10.29244/jitkt.v12i2.28427

Abstract

Keberlangsungan ekosistem mangrove merupakan aspek penting karena berkaitan dengan pengurangan atau penambahan akumulasi sedimen seperti proses abrasi dan akresi. Mangrove di pesisir Tanjung Batu telah mengalami penurunan sejak 2001-2010 yang disebabkan oleh aktivitas masyarakat seperti penebangan pohon, pembukaan lahan untuk tambak dan perkebunan kelapa sawit. Penelitian ini bertujuan mengestimasi laju akumulasi sedimen mangrove di Tanjung Batu. Penelitian dilakukan pada bulan Februari-Juli 2018. Pengambilan sampel dilakukan pada 3 stasiun meliputi identifikasi jenis mangrove, pengukuran Diameter at Breast Height (DBH) mangrove dan pengambilan sedimen corring menggunakan pipa stainless. Sampel sedimen dipotong berdasarkan interval 5 cm (kedalaman 0-15 cm), dan interval 2 cm (kedalaman 48-50 cm) yang digunakan sebagai Pb-210 supported (Stasiun 1 dan 3). Stasiun 5 dipotong dengan interval 4, 6 dan 8 cm (kedalaman 1-50 cm). Analisis sampel menggunakan alpha spektrometer dengan radioisotop Pb-210. Penentuan umur sedimen dan laju akumulasi sedimen menggunakan model Constant Rates of Supply (CRS). Hasil menunjukkan bahwa laju akumulasi sedimen selama 20 tahun terakhir (1998-2018) berkisar 0,09-0,20 g cm-2 tahun-1. Laju akumulasi tertinggi adalah Stasiun 1 yang merupakan lokasi dengan umur sedimen paling tua dan didominasi mangrove dengan DBH > 5 cm, sedangkan laju akumulasi terendah adalah Stasiun 5 yang memiliki umur sedimen paling muda dan didominasi mangrove dengan DBH < 5 cm.
KONSENTRASI MERKURI (Hg) DI SEDIMEN PERAIRAN CIREBON, JAWA BARAT PADA MUSIM PERALIHAN TIMUR Haryati, Ani; Prartono, Tri; Hindarti, Dwi
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 14 No. 3 (2022): 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 | DOI: 10.29244/jitkt.v14i3.33788

Abstract

Perairan Cirebon merupakan salah satu wilayah dengan aktivitas perikanan, industri, dan manusia yang padat, sehingga dapat menyebabkan pencemaran logam berat di perairan tersebut. Penelitian ini bertujuan untuk menganalisis kandungan Hg di sedimen dan hubungannya dengan karakteristik lingkungan di beberapa lokasi penelitian pada beberapa wilayah pesisir Cirebon: Bondet, Sukalila, dan Kejawanan. Sembilan titik penelitian dipilih pada setiap lokasi. Analisis in situ dilakukan untuk variabel suhu, salinitas, pH, dan DO. Selain itu, sampel sedimen permukaan diambil pada variasi kedalaman perairan antara 1-6 m. Fraksi butir, karbon organik, serta logam berat Hg dianalisis dari setiap sampel sedimen. Hasil yang diperoleh memperlihatkan bahwa suhu permukaan, salinitas, pH, dan DO Perairan Cirebon berkisar 31,09–32,30 oC; 26,4–30,10‰; 7,66–8,56; dan 4,50–6,87 mg/L. Sedimen Perairan Cirebon didominasi oleh lanau lempungan serta karbon organik sekitar 1%. Kandungan merkuri pada sedimen masih tergolong aman untuk kehidupan akuatik dengan konsentrasi 29,36–68,55 µg/kg–bk. Analisis komponen utama menunjukkan bahwa ketiga lokasi penelitian memiliki karakteristik perairan berbeda dan selanjutnya memengaruhi pola akumulasi Hg di sedimen. Secara keseluruhan, walaupun terdapat akumulasi Hg di sedimen, namun kondisi masih tergolong aman untuk kehidupan biota. Akumulasi diduga dipengaruhi oleh sumber dari daratan dan kondisi lingkungan pengendapan seperti aliran air sungai dan arus pantai.
Optimization Bacterial Density and Fertilizer Dosage for Bioremediation of Oil Contaminated Sandy Beach: A Case of Cilacap, Indonesia Darmayati, Yeti; Sanusi, Harpasis S.; Prartono, Tri; Santosa, Dwi Andreas; Nuchsin, Ruyitno
BIOTROPIA Vol. 24 No. 3 (2017): BIOTROPIA Vol. 24 No. 3 December 2017
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2017.24.3.611

Abstract

Bioremediation, involving biostimulation and/or bioaugmentation, is a promising method to overcome oil spills in Cilacap coastal waters. Cilacap coastal area has high risk on oil pollution. This study investigated the stimulatory effect of nitrogen concentration, bacterial density and the composition of bacterial culture in enhancing oil degradation in this area. The applications of 4 different concentrations of Slow Release Fertilizer (SRF) and 2 different densities of bacterial cells in the form of single (RCO/B/08_008) and mixed culture were employed in microcosm experiments for 28 days. The efficacy of combining bacterial culture and fertilizer application in various concentrations was also tested. Oil degradation, bacterial growth and environmental parameters were monitored periodically during the experiments. The results showed that oil degradation rate was more influenced by nutrient concentration (biostimulation) than bacterial number or culture composition (bioaugmentation) added. The efficacy of biostimulation in degrading oil was better than that of bioaugmentation. Biostimulation increased oil degradation up to 6.4 times higher than the control. The optimum of fertilizer concentration added was 7.5 mg N/g (C:N ratio of 1,000:75), which increased depletion rate both in biostimulation-only and the combination of biostimulation with bioaugmentation up to 6.4 and 7.5 times higher than the control, respectively. It is suggested that bioremediation of oil-contaminated sandy beach in Cilacap would be optimal by employing a combination of Slow Release Fertilizer at concentration having C/N ratio = 1,000 : 75 and RCO/B/08_008 culture at density of 0.5 x 108 cells/mL (100% homology with Alcanivorax sp. TE-9).
HYDRODYNAMICS MODELING IN KENDARI BAY, SOUTHEAST SULAWESI, INDONESIA Imalpen Imalpen; Tri Prartono; Rastina; Alan Frendy Koropitan; Amir Yarkhasy Yuliardi
International Journal of Remote Sensing and Earth Sciences Vol. 21 No. 1 (2024)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2024.v21.a3906

Abstract

Kendari Bay is coastal water in the center of the capital city of Southeast Sulawesi province. It is shaped like a pocket with a narrow mouth and there is an estuary of a large river, namely the Wanggu river, which makes the dynamics of its waters very interesting to study. The focus of the study is the hydrodynamic factors in the Kendari Bay and Wanggu River areas. This study aims to examine the hydrodynamic conditions of Kendari Bay, mainly due to the existence of reclamation and the influence of the Wanggu River which has not been studied previously. This research method uses a two-dimensional model based on bathymetric data, tides, and the flow of the Wanggu River with a simulation time of 15 days (1 March to 15 March 2020). The modeling results were then verified with PUSHIDROSAL tidal elevation data showing an RMSE value of 0.07 indicating that the model was well constructed. The mixed tidal type with a tendency to double daily is the tidal type of Kendari Bay waters based on the Formzahl number value of 0.51. The current pattern generally moves in and out from east to west and vice versa with a varying elevation range following spring conditions of 1.75 m. The maximum tidal speed is 0.1784 m/s and the minimum value is 0.0057 m/s which is shown in the sample results of the model when the hing to low tide, and low to high tide. The results of the hydrodynamic modeling show that the current velocity increases when passing through a narrow path, namely the bay estuary and river estuary. The existence of the reclamation area affects the changes in the velocity of the current which is significantly larger and the direction of the current that undergoes a deflection follows the shape of the reclamation area. The current direction is to the southeast and then turns towards the northeast when low to high tide and eastward then turns towards the northeast when the high to low tide spring conditions compared to research before the reclamation
Co-Authors . Riska Abdullah Hisam bin Omar Achyani, Ratno Adriani Sunuddin Agus Atmadipoera Agus S Atmadipoera Alan Frendy Koropitan Albida Rante Tasak Ali Arman Ali Arman Ali Arman Ali Arman Ali Arman Ali Arman Lubis Ali Arman Lubis Amir Yarkhasy Yuliardi Andi Agussalim, Andi Angga Dwinovantyo Ani Haryati, Ani Anma Hari Kusuma Anna Ida Sunaryo Purwiyanto Anna Ida Sunaryo Purwiyanto Asmika Harnalin Simarmata Bengen, Detriech G Beta Susanto Barus Beta Susanto Barus Bibiana W. Lay Bintal Amin Chandrika Eka Larasati Dafit Ariyanto DAHLIA WULAN SARI Dea Fauzia Lestari, Dea Fauzia Dedi Soedarma Dedi Soedarma Deni Saputra Dewi S. Ariesta Dewy Septiyanti Yolanda Dietrich G Bengen Dietriech G Bengen Dietriech Geoffrey Bengen Dina Augustine DINA AUGUSTINE DWI ANDREAS SANTOSA Dwi Hindarti Dwi Hindarti, Dwi Dwiyoga Nugroho Efriyeldi, Efriyeldi Enan M. Adiwilaga Etty Riani Fadli Syamsudin Fadli Syamsudin Febrianto, Muhammad Riza Hanief Ganjar Saefurahman Hadi Hermansyah Hadi Hermansyah Harpasis S Sanusi Harpasis S. Sanusi Harpasis s. Sanusi Harpasis S. Sanusi Harpasis S. Sanusi Harpasis Slamet Sanusi Hartanto, Mochamad Tri Heron Surbakti Hilda Zulkifli Hilda Zulkifli Hilda Zulkifli I Wayan Nurjaya Imalpen Imalpen Imalpen, Imalpen Indra Jaya Indra Jaya Intan Sari Dewi, Intan Sari Irzal Effendi Iswandi Wahab Kolibongso, Duaitd Kusumaningsih, Alvianita Lestari LILY MARIA GORETTI PANGGABEAN Mai Suriani Mardiansyah Mardiansyah, Mardiansyah Martinez, Stepahnie J. Mohammad Agung Nugraha Mohammad Agung Nugraha Mohammad Khotib Mohammad Tri Hartanto Muhamad Riza Kurnia Lubis Muhammad Trial Fiar Erawan Mujizat Kawaroe Mujizat Kawaroe MUJIZAT KAWAROE Mujizat Kawaroe Mujizat Kawaroe MUJIZAT KAWAROE Mulia Purba Najamuddin N Nella Tri Agustini, Nella Tri Neviaty P Zamani Neviaty P. Zamani Nico Wantona Prabowo Nuchsin, Ruyitno Paputungan, Mohammad Sumiran Puradiredja, Sena Pasha Rastina Rastina, Rastina Restya Rahmaniar RICHARDUS KASWADJI RIDWAN AFFANDI Rina Zuraida Rina Zuraida Riris Aryawati Riris Aryawati Robinson Sitepu Ruyitno Ruyitno Salsabila, Afviya Salsabilah, Raisyah Santi Susanti Santi Susanti Santi Susanti, Santi Syahrial Syahrial Syahrial Syahrial Syahrial Syahrial Taslim Arifin WIDIASTUTI KARIM Wike Ayu Eka Putri Yani Permanawati Yeti Darmayati Yeti Darmayati Yuanpin Chang Yunita A. Noya Yusli Wardiatno Zainal Arifin Zaki, Nurul Hidayah Mat