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Sebaran Parameter Akustik Ikan Pelagis Kecil di Teluk Cenderawasih, Papua Hisyam, Muhammad; Pujiyati, Sri
ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Vol 7 No 1 (2024): ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua
Publisher : Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/acr.v7i1.3784

Abstract

Cenderawasih Bay is one of the territorial waters of Indonesia which has a fairly high fishery potential. In 2022, the bay's fishery potential reaches 135,140 tons but the utilization rate is still at 0.3, which means that it has not been fully utilized, especially small pelagic fish. This shows the need for an estimation of the distribution of fish in the bay that can take advantage of the hydroacoustic method. This research uses a split beam echosounder SIMRAD EY-60 which is operated at a frequency of 38 KHz and a pulse duration of 1,024 ms to obtain fish distribution data. Environmental parameter data was obtained using data from marine.copernicous.eu at the same time as fish distribution data collection. The distribution of fish also shows a fairly diverse distribution of values with the highest SV value range at -59.7 to -57.4 dB and the highest TS range at -59.4 to -46.7 dB. The distribution of fish was also seen to be more concentrated in areas with warm temperatures and spread evenly in each salinity range with the number of fish detected approaching areas of higher chlorophyll concentration.
PENGUKURAN NILAI TARGET STRENGTH ANAKAN IKAN GABUS (Channa striata) KONDISI TERKONTROL DENGAN SIMRAD EK-15 ECHOSOUNDER Siahaan, Gracia Tiffany; Pujiyati, Sri; Hestirianoto, Totok; Solikin, Steven
Jurnal Teknologi Perikanan dan Kelautan Vol 15 No 3 (2024): OKTOBER 2024
Publisher : Fakultas Perikanan dan Ilmu Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24319/jtpk.15.235-244

Abstract

Ikan gabus (Channa striata) merupakan ikan karnivora yang banyak ditangkap karena rasa dagingnya yang gurih. Keberadaan ikan gabus di Indonesia menyebar dengan sangat luas, namun ancaman terhadap anakan gabus secara terus menerus dapat berakhir dengan kepunahan. Hal ini menjadi penting untuk menganalisis hubungan antara Target Strength (TS) dengan panjang total anakan ikan Gabus (Channa striata), dengan menggunakan instrumen echosounder SIMRAD EK15 untuk manajemen sumber daya, serta mengevaluasi kesehatan populasi ikan gabus. Penelitian dilakukan menggunakan 15 ekor ikan gabus dengan rentang panjang badan ikan 10-15 cm, memiliki rentang nilai TS rata-rata -46,80 dB sampai -45,01 dB. Hubungan antara panjang total ikan gabus dan nilai target strength mempunyai hubungan yang kuat dengan nilai koefisien korelasi sebesar 0,8531 dan koefisien determinasi (R2) sebesar 0,7279, dengan persamaan TS= 64,439ln(L) -215,66.
LITERATURE REVIEW OF FLYING FISH: BIOLOGY, DISTRIBUTION, FLYING FISH FISHERIES, AND CURRENT RESEARCH: Tinjauan Pustaka Ikan Terbang: Biologi, Distribusi, Perikanan Ikan Terbang, dan Penelitian Terkini Putri, Rini Sahni; Jaya, Indra; Pujiyati, Sri; Agus, Syamsul Bahri; Palo, Mahfud
Marine Fisheries : Journal of Marine Fisheries Technology and Management Vol. 14 No. 2 (2023): Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut
Publisher : Bogor Agricultural University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmf.v14i2.45755

Abstract

This article presents various literature related to flying fish from 1930 to the present, which are shown in the form of aspects of biology, distribution, fisheries, and utilization of Current Technology in Flying Fish Research. This study was conducted through a systematic search and review of various articles, books, dissertations, and theses that discuss flying fish. Literature studies related to flying fish are important to provide more complete information required to maintain the sustainability of their resources. This study shows the classification, type, spawning process, body shape, ability to glide in the waters, distribution, fishing technology, and current technology in various researches. Keywords: biology, distribution, flying fish, fisheries
Seabed Geoacoustic Analysis Using Scientific Single Beam Echosounder La Elson La Elson; Henry M. Manik Manik; Totok Hestirianoto Hestirianoto; Sri Pujiyati Pujiyati
Jurnal Ilmiah Perikanan dan Kelautan Vol. 17 No. 1 (2025): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.vi.55832

Abstract

Graphical Abstract   Highlight Research Hydroacoustic technology was used to identify seabed substrates in real-time with the Simrad EK-15 Single Beam Echosounder. Acoustic backscatter analysis classified seabed substrates into 9 sediment types, with reflection values ranging from -28.03 dB to -20.02 dB. Machine learning models (k-NN and Random Forest) achieved 98.21% and 96.43% accuracy, enabling faster sediment classification than conventional methods. Geoacoustic analysis revealed sound speed, sediment density, acoustic impedance, and reflection coefficients, defining the physical properties of the seabed. This study supports coastal engineering, marine habitat conservation, and underwater geological mapping more effectively and efficiently.     AbstractHydroacoustic technology was able to quantify the seabed substrate and can be estimated accurately and near real time on the acoustic characters of each substrate. The purpose of the research was to identify the geoacoustic characteristics and spatial mapping of the seabed substrate in Lancang Island. Acoustic data was acquired using a Simrad EK-15 Single Beam Echosounder instrument operating at 200 kHz. Sediment samples were taken using an Ekman grab, which will be used to validate the acoustic data. The results of this study indicated that the acoustic backscatter values of the seabed substrate based on the surface backscattering strength value and sediment particle size at fourteen sampling stations are -28.03 decibels to -20.02 decibels divided into 9 sediment type groups, namely medium and very coarse sand mixture; medium sand; medium, fine and coarse sand mixture; medium and fine sand mixture; fine and medium sand mixture; medium and very fine sand mixture; very fine and medium sand mixture; fine and very fine sand mixture; and fine sand. The accuracy level of k-Nearest Neighbour and Random Forest computational used has very good accuracy of 98.21 % and 96.43 % and Naevi Bayes has a lower accuracy of 58.93 %. The identified geoacoustic characteristics included the mean grain size, sound speed, density, acoustic impedance, and reflection coefficient. Faster, more effective, and efficient computational processes with high accuracy make k-Nearest Neighbour and Random Forest models the best alternative to be used as geoacoustic computational models of seafloor substrates.
Pengukuran Nilai Target Strength Ikan Lele (Clarias batrachus) Menggunakan Metode Hidroakustik SIMRAD EK15 Kondisi Terkontrol Santoso, Hendi; Pujiyati, Sri; Hestirianoto, Totok; Jaya, Indra; Priatna, Asep
Jurnal Perikanan Unram Vol 15 No 4 (2025): JURNAL PERIKANAN
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jp.v15i4.1646

Abstract

Catfish (Clarias batrachus) is one of the main commodities in Indonesia's freshwater aquaculture industry. Accurate monitoring of fish growth and population is crucial to improving production efficiency and sustainability. Conventional methods such as physical weighing are often inefficient and may cause stress to the fish. Therefore, hydroacoustic technology offers a promising alternative due to its non-invasive nature and ability to provide real-time data. This study aims to estimate the Target Strength (TS) of catfish using hydroacoustic methods with a SIMRAD EK15 instrument under controlled environmental conditions. The measurements were conducted in a test tank where physical parameters such as temperature, salinity, and water clarity were maintained consistently to ensure reliable results. The experiment involved 13 catfish of various sizes, with body lengths ranging from 8.1 cm to 19.3 cm and weights from 4 to 37 grams. The measured TS values ranged from -64.81 dB to -59.89 dB. The results indicated a positive correlation between TS and both fish length and weight, suggesting that larger fish produced stronger acoustic backscatter signals. This study provides a valuable foundation for the application of hydroacoustic methods in catfish population surveys, both in controlled environments and natural waters. The findings can be adapted to support more efficient and sustainable fish farming practices through real-time, technology-based monitoring systems.
Co-Authors Aisyah Aisyah Alajuri, M Hasbi Sidqi Ali Suman Anang Prasetia Adi Andi Yaodi Nurani Yamin Angga Dwinovantyo Ariel Hananya Asep Ma'mun Asep Priatna Augy Syahailatua Ayi Rahmat Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Baigo Hamuna Bambang Retnoaji Bonar P. Pasaribu Bryan Felix Simanjuntak Budhi Agung Prasetyo Dea Fauzia Lestari, Dea Fauzia Djisman Manurung Domey Moniharapon Dwi P. I. Mahdi Endang Sunarwati Srimariana Erfind Nurdin Erwin Maulana Esa Fajar Hidayat Fachri Ali Badihi Freddy Supriyadi Freddy Supriyadi Hendi Santoso Henry M. Manik Manik Henry Munandar Manik Hestirianoto, Totok Hidayanto Akbar Husnul Kausarian I Made Candiasa Indra Jaya Indra Jaya Indra Jaya Indra Jaya Kasih Anggraini Kasih Anggraini, Kasih Keni Sultan La Elson La Elson La Elson Lisiard Dimara M. Natsir M. Zainuddin Lubis Mahfud Palo Mahiswara Nahiswara Mochamad Adam Maulana Mochamad Tri Hartanto Muhamad Zainuddin Lubis Muhammad Hisyam Muhammad Hisyam Muhammad Hisyam Muhammad Mujahid Muhammad Mujahid Muhammad Z. Lubis Muhammad Zainuddin Lubis Muhammad Zainuddin Lubis Muhammad Zainuddin Lubis Muhammad Zainuddin Lubis Muhammad Zainuddin Lubis Muhammad Zainuddin Lubis Nyoman M N Natih Pratiwi Dwi Wulandari Pratiwi Dwi Wulandari PROF. DR. A.A.ISTRI NGR.MARHAENI,M.A. . Putri, Rini Sahni Rastina Rastina Rauzatul Nazzla Rini Sahni Putri Riza Aitiando Pasaribu RR. Ella Evrita Hestiandari Siahaan, Gracia Tiffany Solikin, Steven Sri Hartati Steven Solikin Susilohadi Susilohadi Susilohadi Susilohadi Syamsul Bahri Agus, Syamsul Bahri Tiggi Choanji Totok Hestirianoto Hestirianoto Wijo Priyono Wijopriono Wijopriono Wijopriono Wijopriono Zulfathri Randhi