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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.
Prototype Testing of Automatic Vessel Tracking System using Web-Based Visualization Nazzla, Rauzatul; Hestirianoto, Totok; Pujiyati, Sri
PELAGICUS Volume 3 Nomor 2 Tahun 2022
Publisher : Politeknik Kelautan dan Perikanan Karawang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/plgc.v3i2.10609

Abstract

Automatic Tracking System is an example in the development of navigation technology that is needed in every means of transportation by land, water, or air. An example of its application in the field of fisheries management is the Vessel Monitoring System (VMS). The purpose of this study was to develop a telemetry technique particularly automatic vessel tracking system. In this study is expected to produce a prototype which can provide information about the movement of traditional fishing boats, especially in coastal areas. Prototype testing in this study was limited to the performance of a prototype based on the capability of the electronics and the resulting output data. Output data obtained by two methods: (1) the trial was stationary, and (2) mobile test. This study also examined the comparison between tracker prototype with GPS handheld. Mobile tracker marks the position automatically whenever the tool is turned on. The increasing distance between the transmitter unit to the receiver unit, the deviation would be even greater. This tool was sensitive in responding and quickly perform the recording every movement. When compared to handheld GPS, this tool has good accuracy and precision indicated by a 95% confidence interval.
DISTRIBUTION OF PELAGIC FISH IN SOUTH CHINA SEA USING GEOSTATISTICAL APPROACH Hidayat, Esa Fajar; Pujiyati, Sri; Suman, Ali; Hestirianoto, Totok
Jurnal Ilmu Kelautan SPERMONDE VOLUME 4 NUMBER 1, 2018
Publisher : Hasanuddin University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20956/jiks.v4i1.3800

Abstract

Pelagic fish are spesies that live in water column at depth of 100 to 200 meters from surface. They migrate as a group looking for nutrient and spawning place. Potential fisheries comodities in Indonesia including pelagic fish have high economic value. Then, stock assessment of pelagic fish measurement is important to researched. The research was conducted in May – June 2016 surrounding South China Sea waters using Madidihang 02 Research Vessel operated by Marine Fisheries Affair (MFA) Republic of Indonesia. To estimate the density of pelagic fish hydro-accoustic equipment and oceanography parameters were used and measured during the campaign. The split beam echosounder was use in aim to obtain precission position and number of fish target. The highest density of fish was found around Tambelan Island and Anambas Island. Statistically pelagic fish density has correlation with chlorophyll-a, salinity, temperature, and sea current velocity. The statistical analysis between pelagic fish density and those oceanography parameters (as statistic variables) yields positive vector correlation.
KUANTIFIKASI HAMBUR BALIK AKUSTIK DASAR LAUT MENGGUNAKAN SCIENTIFIC SINGLE BEAM ECHOSOUNDER Manik, Henry Munandar; Totok Hestirianoto; Sri Pujiyati; Elson, La
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 14 No. 1 (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.v14i1.37184

Abstract

Teknologi hidroakustik mampu melakukan kuantifikasi terhadap substrat dasar laut dan dapat memperkirakan secara akurat dan mendekati real time terhadap karakter akustik yang dimiliki oleh masing-masing jenis substrat. Tujuan dari penelitian ini adalah melakukan kuantifikasi hambur balik akustik dasar laut dalam upaya pengembangan teknologi informasi kelautan. Akusisi data menggunakan instrumen akustik Single Beam Echosounder Simrad EK-15 pada frekuensi 200 kHz. Pengolahan dan analisis data meliputi hambur balik akustik, tipe sedimen, komputasi acoustics bottom backscattering substrat dasar laut dan analisis spasial acoustic backscattering dasar laut di perairan Pulau Lancang. Hasil penelitian ini menunjukkan bahwa nilai hambur balik akustik substrat dasar laut berdasarkan nilai SS dan ukuran partikel di setiap stasiun sampling yaitu tipe substrat pasir -21,08 dB sampai -24,55 dB, pasir halus -25,67 dB sampai -26,67 dB, dan pasir halus sekali berkisar antara -27,42 dB sampai -28,03 dB. Berdasarkan rentang nilai hambur balik akustik yang didapatkan dari stasiun sampling diperoleh klasifikasi jenis substrat dasar laut di sepanjang lajur survei yaitu pasir kasar sekali, pasir kasar, pasir sedang, pasir halus, pasir halus sekali, lanau kasar, lanau sedang, lanau halus, lempung kasar dan lempung halus pada rentang nilai -47,85 dB sampai -17,07 dB. Substrat pasir paling banyak ditemukan di lokasi penelitian dengan komposisi yang lebih besar dibandingkan dengan lanau dan lempung. Nilai hambur balik akustik sangat dipengaruhi oleh ukuran partikel, bentuk morfologi dan relief dasar laut.
Rancang Bangun Sistem Monitoring Kelembaban dan Suhu Pasir Sarang Penyu Berbasis Internet of Things (IoT) Santoso, Hendi; Hestirianoto, Totok; Jaya, Indra; Pujiyati, Sri
Seminar Nasional Teknik Elektro Vol. 3 No. 1 (2023): SNTE II
Publisher : Forum Pendidikan Tinggi Teknik Elektro Indonesia Pusat

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Penyu merupakan jenis reptilia laut yang hidup di daerah tropis dan subtropis. Penyu merupakan hewan yang mempunyai sifat Temperature-dependent Sex Determination (TSD). Suhu saat masa inkubasi telur menentukan jenis kelamin betina atau jantan. Penyu yang merupakan hewan berdarah dingin tidak bisa mengerami telurnya sendiri. Keberhasilan penetasan telur penyu secara alamiah dipengaruhi oleh kondisi lingkungan seperti: faktor letak sarang, kedalaman sarang, suhu sarang, kelembapan sarang dan lingkungan sekitarnya. Sistem monitoring yang dikembangkan oleh penelitian ini yaitu sistem monitoring secara real time dan berbasis IoT menggunakan mikrokontroler Arduino Uno dan NodeMcu 6288. Penelitian ini bertujuan untuk memberikan kemudahan bagi peneliti atau masyarakat dalam pengukuran kelembapan dan suhu pasir yang dimanfaatkan untuk bidang-bidang tertentu. Pengukuran suhu pasir menggunakan sensor DS18B20 waterproof, kelembapan pasir menggunakan sensor SKU SEN:0193 serta suhu dan kelembapan udara menggunakan DHT22. Modul sdcard berfungsi untuk menyimpan data hasil perhitungan sensor secara realtime dan terus-menerus. Desain alat ukur dirancang untuk mudah dibawa (portable) dan mudah untuk digunakan. Bahan yang digunakan adalah plastik poly propylene yang mempunyai dimensi 11x8x18 cm. Instrumen ini dapat mencatat secara autonomous dan logger setiap 5 menit sekali dan di tampilkan ke web server dan aplikasi smartphone. Alat ini mampu memberikan informasi data suhu pasir, kelembapan pasir, suhu udara dan kelembapan udara pada sarang penyu semi alami. Berdasarkan hasil pengukuran menggunakan instrumen, suhu pasir sarang penyu semi alami Konservasi Penyu Pangumbahan berkisar antara 27,9 ℃ – 33,2 ℃ dengan rata-rata 30,2℃. Suhu udara berkisar antara 21,5 ℃ – 38,9 ℃ dengan rata-rata 27,5 ℃. Kelembapan pasir berkisar antara 21% – 41% dengan rata-rata 34,3%. Kelembapan udara 38,1% – 89,7% dengan rata-rata 81,9%.
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 Elson, La Endang Sunarwati Srimariana Erfind Nurdin Erwin Maulana Fachri Ali Badihi Freddy Supriyadi Freddy Supriyadi Hendi Santoso Henry Munandar Manik Hestirianoto, Totok Hidayanto Akbar Hidayat, Esa Fajar Husnul Kausarian I Made Candiasa Indra Jaya Indra Jaya Indra Jaya Indra Jaya Kasih Anggraini Kasih Anggraini, Kasih Keni Sultan 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 Nazzla, Rauzatul Nyoman M N Natih Pratiwi Dwi Wulandari Pratiwi Dwi Wulandari PROF. DR. A.A.ISTRI NGR.MARHAENI,M.A. . Putri, Rini Sahni Rastina Rastina 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 Wijo Priyono Wijopriono Wijopriono Wijopriono Wijopriono Zulfathri Randhi