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All Journal Jurnal Teknologi Perikanan dan Kelautan Jurnal Ilmu dan Teknologi Kelautan Tropis BULETIN OSEANOGRAFI MARINA Panrita Abdi - Jurnal Pengabdian pada Masyarakat Journal of Applied Geospatial Information Jurnal Segara Jurnal Rekayasa elektrika
Steven Solikin
Department Of Marine Science And Technology, Faculty Of Fisheries And Marine Sciences, IPB University, Dramaga, Bogor 16680, West Java, Indonesia
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Library & Information Science Materials Science & Nanotechnology Physics Other

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Habitat-Driven Differences in Fish Assemblages Caught by Traditional Bubu Traps in Kapota Atoll, Wakatobi National Park, Indonesia Sri Pujiyati; Julia Eka Astarini; Steven Solikin; Baigo Hamuna; Efi Noferya Manafi; Muhammad Musrianton; Firman Rusdin; Safirudin Safirudin
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 18 No 1 (2026): 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.18.1.71307

Abstract

Bubu are traditional passive fishing traps made from natural materials such as bamboo and are widely used in coral reef fisheries due to their low impact on benthic habitats. This study examines the diversity and community structure of fish associated with different benthic habitats in Kapota Atoll, Wakatobi National Park, Indonesia. Five bamboo traps (88 × 78 × 32 cm) were deployed at five stations representing four habitat types: coral, sand, coral rubble, and seagrass. To minimize fish avoidance, traps were initially left in place for 48 hours to allow odors from new bamboo to dissipate. After this period, traps were retrieved to collect the catch and then redeployed. Sampling was conducted twice. A total of 92 individuals representing 25 species from 14 families were recorded. Ecological indices indicated moderate diversity (H' = 1.277-2.094), high evenness (E = 0.778-0.921), and low dominance (D = 0.141-0.306). Correspondence analysis explained 64.6% of the species–habitat relationship (Axis 1: 36.02%; Axis 2: 28.58%) and identified three assemblages associated with sand/coral/rubble habitats, shallow seagrass (3 m), and deeper seagrass (8 m). Overall, the results indicate that bubu traps are effective for capturing fish diversity across different benthic habitats and can provide useful ecological information for fisheries management, despite their relatively limited sampling area.
Seafloor Morphology and Bathymetric Data Quality Evaluation Around Panjang Island, Banten Bay Steven Solikin; Sri Pujiyati; Dwi Yuni Wulandari; Tri Ariyah Hari Saputra; Umar Darlan; A-Liem; Ardella Insya Firmanti
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 18 No 1 (2026): 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.18.1.71510

Abstract

Gathering accurate bathymetric data in shallow coastal waters proves to be difficult due to the environmental issues and operational constraints, especially in a semi-enclosed water like Banten Bay. This research intends to examine the seafloor morphology, in addition to assessing the quality of hydrographic data acquired through the use of single-beam echosounder (Odom Echotrac CV100) around Panjang Island Waters. The main line and cross line surveys of the survey were carried out using RTK-GNSS positioning and tidal corrections using 30 day observations relative to mean sea level. The bathymetric data show a gradual depth transition from 8 m nearshore to more than 20 m offshore. Ridges and basins are evident in the data indicating spatial variability. According to the results of a data quality assessment based on the IHO S-44 standard, 94.07% of data belonged to Order 2, 76.67% to Order 1a/1b, 56.30% to Special Order and 38.52% to Exclusive Order with data errors below 7%. As the above results suggest, the general hydrographic mapping by the dataset is of reliable accuracy, which does not achieve highest accuracy consistently. The study’s main contribution is the demonstration of performance and practical limitations of single beam echosounder surveys in shallow water environment with a quantification of data quality compared to IHO standard. This study provides a validated methodology for low-cost bathymetric mapping of other similar semi-enclosed coastal water.
Hydroacoustic Analysis of Pelagic Fish Aggregation Around Fish Aggregating Devices (FADs) in Maluku Sea Ramadhini Zulfa Alwafia; Sri Pujiyati; Angga Dwinovantyo; Steven Solikin; Widhya Nugroho Satrioajie
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 18 No 2 (2026): 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.18.2.71642

Abstract

The Maluku Sea is a body of water with considerable potential in terms of the fisheries sector. Several fish aggregations are located in the Maluku Sea that are being checked using a Simrad EK-15 single beam echosounder with a frequency of 200 kHz kHz using the hydroacoustic method to record fish echoes. The hydroacoustic method provides information in the form of echoes from fish groups or fish volume. The backscattering strength (SV) is distributed around the fish aggregating device. This study aims to detect the presence of pelagic fish using hydroacoustic technology in the form of backscatter values and to analyze the relationship between pelagic fish SV and temperature, salinity, and currents around fish aggregating devices in the Maluku Sea. Fish aggregating devices in the Maluku Sea are dominated by small pelagic fish with fish aggregating device constructions reaching 70 meters below the water surface, there are buoys tied with floating ropes and artificial attractors such as palm fronds and weights. The temperature profile is around 29.73 – 26.85 °C, salinity ranges from 34.4 to 34.9 PSU, and the current speed is 0.2 meters per second. The distribution of fish SV values in the three fish aggregating devices was at a depth of 5 to 20 meters with SV values ranging from -46.53 to -52.91 dB, indicating that the fish aggregating devices greatly influenced the distribution of pelagic fish that tend to gather and follow the presence of attractors in the fish aggregating devices. 
Co-Authors A-Liem Agung D. Syakti Angga Dwinovantyo Angga Dwinovantyo Angga Dwinovantyo Ardella Insya Firmanti Ayi Rahmat Bagas O. Siahaan Baigo Hamuna Bryan Felix Simanjuntak Dea Fauzia Lestari, Dea Fauzia Dony Apdillah Dwi Yuni Wulandari Efi Noferya Manafi Endang Sunarwati Srimariana Erwin Maulana Fachri Ali Badihi Firman Rusdin Henry Munandar Manik Hestirianoto, Totok Jales Veva Jaya Julia Eka Astarini Lansky, Jovian Mochamad Tri Hartanto Muhammad Hisyam Muhammad Musrianton Muhammad Sanubari Muhammad Zainuddin Lubis Nyoman M N Natih Ramadhini Zulfa Alwafia Rastina Rastina Rina Fajaryanti Riza Aitiando Pasaribu Safirudin Safirudin Siahaan, Gracia Tiffany Sri Pujiyati Susilohadi Susilohadi Susilohadi Susilohadi Tri Ariyah Hari Saputra Umar Darlan Widhya Nugroho Satrioajie