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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Ilmu dan Teknologi Kelautan Tropis Indonesian Journal of Oceanography
Hartanto, Mochamad Tri
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Environmental Science Library & Information Science

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KONDISI OSEANOGRAFI DAN KESESUAIAN LOKASI BUDIDAYA LOBSTER DI PERAIRAN TELUK PIDADA, LAMPUNG Hartanto, Mochamad Tri; Effendi, Irzal; Prartono, Tri; Puradiredja, Sena Pasha; Lestari, Dea Fauzia; Susanti, Santi; Salsabila, Afviya
Jurnal Teknologi Perikanan dan Kelautan Vol 15 No 3 (2024): OKTOBER 2024
Publisher : Fakultas Perikanan dan Ilmu Kelautan, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.15.285-297

Abstract

Kondisi oseanografi dan pemilihan lokasi adalah faktor penting dalam keberhasilan dan keberlanjutan kegiatan budidaya lobster laut menggunakan sistem keramba jaring apung. Salah satu kendala budidaya lobster adalah belum adanya aturan khusus mengenai kriteria kesesuaian lokasi budidaya. Tujuan dari penelitian ini adalah untuk menentukan kriteria dan lokasi yang sesuai untuk budidaya lobster di sekitar perairan Teluk Pidada. Dasar kriteria yang digunakan adalah kesesuaian kondisi oseanografi dan kualitas air laut terhadap konstruksi keramba jaring apung dan habitat alamiah lobster. Metode analisis spasial menggunakan sistem informasi geografi dengan sistem pembobotan digunakan dalam penentuan lokasi yang sesuai untuk budidaya, yang mencakup kecerahan, kekeruhan, TSS, klorofil-a, DO, nitrat, fosfat, amonia, pH, TOM, dan salinitas. Hasil penelitian menunjukkan bahwa 9 dari 15 parameter memiliki kondisi yang sangat sesuai. Hasil studi analisis kesesuaian wilayah memperlihatkan bahwa 78,8% perairan atau seluas 2.890,8 ha dalam kategori sangat sesuai, kemudian hanya 21,2% perairan atau seluas 755,2 ha yang tergolong sesuai, dan tidak ditemukan kategori tidak sesuai di perairan Teluk Pidada. Hampir sebagian besar wilayah teluk sesuai untuk budidaya lobster, namun sebagian titik berlokasi agak menjauh dari daratan karena tingginya nutrien dan run-off kurang sesuai untuk kegiatan budidaya.
Estimasi Kesuburan Perairan Teluk Lampung berdasarkan Vertically Generalized Production Model (VGPM): Estimation of Lampung Bay Waters Fertility Based on Vertically Generalized Production Model (VGPM) Hartanto, Mochamad Tri; Febrianto, Muhammad Riza Hanief; Susanti, Santi; Prartono, Tri; Rastina; Martinez, Stepahnie J.; Zaki, Nurul Hidayah Mat; Effendi, Irzal; Lestari, Dea Fauzia
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 16 No. 3 (2024): 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.v16i3.60125

Abstract

Lampung Bay is an important water crossing in South Sumatra that is greatly influence by anthropogenic activities and oceanographic characteristics. This study characterized and estimated the spatial and temporal Primary Productivity (PP) in the three sections of the bay: head, middle, and mouth. The PP was modeled by using Sea Surface Temperature (SST), chlorophyll-a, Primary Productivity, and Photosynthetically Active Radiation (PAR) collected from remote sensing data and field measurements. Primary productivity was modeled with a Vertically Generalized Production Model (VGPM), and data validation was done using the Root Mean Square Error method. The distribution of PAR in Lampung Bay ranged from 35–52.50 E/m2/day. The distribution of SST ranged from 28.5–31.50°C. The highest distribution of chlorophyll-a was at the hHead of the bay with a range of 0.30-12 mg/m3. Correlation analysis shows that chlorophyll-a had the highest influence on PP (R2=0.99). While the middle and outer areas of the bay have a low average with values of 122.65 and 101.84 gC/m2/year. Our models show that there is high primary production at the Head of the bay, reaching eutrophic and mesotrophic levels. The middle and outer areas of the bay show productivity levels corresponding to mesotrophic and oligotrophic levels.
Distribusi Bahan Organik dan Fraksi Sedimen di Perairan Teluk Lampung: Distribution of Sediment Fractions and Organic Matter in Lampung Bay Prartono, Tri; Koropitan, Alan Frendy; Khotib, Mohammad; Hartanto, Mochamad Tri; Kusumaningsih, Alvianita
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 16 No. 1 (2024): 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.v16i1.48135

Abstract

Deposisi sedimen di perairan sangat dipengaruhi oleh proses-proses pantai yang menyebabkan variasi karakteristik fisik dan kimiawinya. Penelitian ini mengungkap komposisi ukuran sedimen dan bahan organik di sedimen Teluk Lampung untuk menduga proses deposisi. Analisis fraksi sedimen dilakukan berdasarkan pada American Society for Testing and Materials (ASTM) standards D422-63, sedangkan bahan organik dilakukan dengan menggunakan metode loss on ignition (LOI). Fraksi pasir lanau (75,95-78,73%) dan fraksi lempung (18,27-20,28%) memiliki persentase yang lebih tinggi dibandingkan dengan fraksi pasir (3,00-3,81%). Kandungan organik di sedimen perairan Teluk Lampung berkisar antara 10,67-13,48%. Distribusi fraksi sedimen dan bahan organik di perairan Teluk Lampung tidak berbeda signifikan antar stasiun, yang artinya stasiun yang berada di dekat kepala teluk (TL 1 dan TL 2) memiliki persentase fraksi sedimen dan bahan organik yang tidak berbeda signifikan dengan stasiun yang berada di tengah atau ke arah mulut teluk (TL 3-TL5).
Seasonal Variability of Surface Currents in Cempi Bay, NTB Based on ADCP and HYCOM Data Havis, Muchammad Iqbal; Hartanto, Mochamad Tri; Hidayat, Esa Fajar; Sembiring, Agustinus; Nabil, Nabil
Indonesian Journal of Oceanography Vol 8, No 1 (2026): Indonesian Journal of Oceanography
Publisher : University of Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/ijoce.v8i1.28865

Abstract

This study investigates the seasonal variability of surface currents in Cempi Bay, located on the southern coast of Sumbawa Island, Indonesia. Using Acoustic Doppler Current Profiler (ADCP), the data were collected during the Northwest Monsoon (NWM, February 2023) and Southeast Monsoon (SEM, August 2023), along with surface current data from the Hybrid Coordinate Ocean Model (HYCOM), we analyzed tidal and residual current dynamics at two observation points. Harmonic analysis revealed that during the NWM, currents at the eastern inner bay (ADCP-01) were predominantly tidal (76.83%), while in the western inner bay (ADCP-02), residual currents (52.30%) slightly exceeded tidal contributions. Conversely, during the SEM both stations experienced more balanced contributions in approximately 59% at both locations, with residual current influence increasing to 40–41%. HYCOM data depict the general direction of currents spatially well, but tend to underestimate at small scales as nearshore. The findings highlight the significant role of both tidal forces and monsoon-driven residual currents in shaping the seasonal surface current dynamics of Cempi Bay, providing a valuable baseline for oceanographic monitoring and coastal management in the region.
Co-Authors Alan Frendy Koropitan Dea Fauzia Lestari, Dea Fauzia Febrianto, Muhammad Riza Hanief Hidayat, Esa Fajar Irzal Effendi Kusumaningsih, Alvianita Martinez, Stepahnie J. Mohammad Khotib Muchammad Iqbal Havis Nabil Nabil, Nabil Puradiredja, Sena Pasha Rastina Salsabila, Afviya Santi Susanti, Santi Sembiring, Agustinus Tri Prartono Zaki, Nurul Hidayah Mat