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All Journal Jurnal Teknologi Perikanan dan Kelautan Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut Jurnal Ilmu dan Teknologi Kelautan Tropis Maspari Journal BULETIN OSEANOGRAFI MARINA Waste Technology Maspari Journal Jurnal Kelautan : Indonesian Journal of Marine Science and Technology Jurnal Penelitian dan Evaluasi pendidikan Jurnal Ilmu Kelautan Spermonde Aceh Journal of Animal Science Panrita Abdi - Jurnal Pengabdian pada Masyarakat Journal of Geoscience, Engineering, Environment, and Technology Journal of Applied Geospatial Information Jurnal Sumberdaya Akuatik Indopasifik JURNAL INTEGRASI Jurnal Penelitian Perikanan Indonesia Jurnal Kelautan Nasional Jurnal Segara PELAGICUS: Jurnal IPTEK Terapan Perikanan dan Kelautan ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Jurnal Rekayasa elektrika Journal of Fisheries & Marine Jurnal Perikanan

Sri Pujiyati

Departemen Ilmu Dan Teknologi Kelautan, Fakultas Perikanan Dan Ilmu Kelautan, Institut Pertanian Bogor, Jalan Agatis, Kampus IPB Dramaga, Bogor 16680, Indonesia

Author-ID : 348509

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 Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Other

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Spectral analysis using Haar wavelet (original signal, denoised signal, residual signal) and source level (SL) for whistle sound of dolphin (Tursiops aduncus) in captivity Muhammad Z. Lubis; Pratiwi Dwi Wulandari; Sri Pujiyati; Totok Hestirianoto; Keni Sultan; Dwi P. I. Mahdi; Muhammad Mujahid
Aceh Journal of Animal Science Vol 1, No 1: July 2016
Publisher : Syiah Kuala University

This study discussed about Haar wavelet with a view original signal, denoised signal, and residual signal with using fourth whistle sounds of dolphin (Tursiops aduncus). The study was conducted in Safari Park, Cisarua, Bogor Indonesia with 2 dolphins. The results showed differences in results Haar wavelet, this study proves that the Haar wavelet is suitable for the analysis of dolphin sounds, and its have frequency ranged 8-22 kHz. The highest value of the noised signal was smaller than residual signal. The highest of residual signal contained in the second whistle, while the lowest was whistle 1, it showed that the larger the signal denoised result residual signal generated using Haar wavelet. The frequency of source level value ranged 8500 Hz to 11800 Hz, with the highest SL value was 43.9 dB (brown cyrcle). The lowest of the frequency of Source Level (SL) value ranged between 15700 Hz to 17990 Hz, with the lowest SL value was 38.5 dB (brown cyrcle). Whistle 1, 2, 3, and 4 have a different value SL and every SL values obtained in 1,2,3, and 4 have differences noise, it shows the same target but SL value and the sound patterns remain distinct by looking at time duration of whistle sound. Beam pattern from an omni directional sound source (DI= 0 dB, cyan trace) and a directional source following the piston model (DI= 18 dB, black trace) and beam pattern with 4 types signal have ranged value 70 º-180°, with highest intensity value was 60º.

The Value of Acoustic Backscattering in Determining the Integration Thickness of the Seabed in Yos Sudarso Bay Papua Sri Pujiyati; Nyoman MN Natih; Baigo Hamuna; Lisiard Dimara
Journal of Applied Geospatial Information Vol 3 No 2 (2019): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

A considerable amount of research has already been conducted into the nature of water on the ocean floor/seabed, ranging from mapping of the seabed, volume backscattering strength (SV) of acoustics on the seabed, classification of the seabed, besides the relationship between the ocean floor and the biota above it with which it interacts. The Yos Sudarso Bay, Jayapura Papua, is a bay with a seabed which faces the floor of the Pacific Ocean and also forms the estuary of the river Anafre which contributes particles that settle on the seabed. This research aimed to collect data in order to understand differences in the integration of water thickness at 0.2 m and 0.5 m besides differences in the types of the substrate based on the results of SV. Data was collected using a single beam echosounder. The acoustic data were collected at 11 stations. The result is interval of value of SV ranged from -37.81dB to -15.62 dB (at the integration of 0.2 m) up to -15.07dB (at the integration of 0.5 m). The value of SV from the gravel was higher compared to the values found in the coarse sand, fine sand, mud mixed with sand or the pure mud. The lowest value of SV was found in the mud substrate. Results showed that thickness integration yielded different results when tested at 0.2 m and 0.5 m on the seabed. Furthermore, it was found that different types of substrate.

Distribution of Fish Target Strength in Malang Rapat Seawater of Bintan Island, Kepulauan Riau Province Andi Yaodi Nurani Yamin; Henry M Manik; Sri Pujiyati
Journal of Applied Geospatial Information Vol 4 No 1 (2020): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Malang Rapat is an area located in east Bintan Island. As a part of coastal communities, fisheries were the primary sector for public revenue in Malang Rapat. A qualified method is needed to determine the abundance and distribution of fish were required. Hydroacoustic technology is one method to solve this problem. This research aimed was to determine the value of fish target strength and to determine the pattern of fish distribution behavior in Malang Rapat, Kepulauan Riau Province, on September 23 and 24, 2016, using scientific echosounder Simrad EK15. The result indicated that fish target strength in Malang Rapat was -60 dB to -42 dB. This value was useful to estimate the length of fish ranged from 3 cm to 31 cm. The highest mean target strength based on depth was -48 dB at 10 m in the daytime and -52 dB at 3 m in the nighttime. The abundance of fish was found at night, precisely 3 meters from the surface of the water. The highest frequency appearance target strength range from -60 dB to -58 dB with 3.94 to 4.95 cm estimated fish length.

Measurement and Analysis of Acoustic Backscatter Value for Bottom Classification of waters Tidung Island M Hasbi Sidqi Alajuri; Henry M Manik; Sri Pujiyati
Journal of Applied Geospatial Information Vol 5 No 2 (2021): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v5i2.3511

Sediment in a water has an important role for organisms, namely as a habitat, a place for foraging for food, and a place for spawning. These sediment can affect the composition of organisms in the water. The purpose of this study is to calculate the value of acoustic backscatter for the classification of the bottom of the water and to see the effect of sediment grain size on the backscatter value obtained from a single beam acoustic instrument. Data collection was carried out from 10 to 12 June 2021 in the water of Tidung Island, Seribu Islands, using the SIMRAD EK-15 single beam, single frequency 200 kHz instrument. Sediment sampling was carried out at 13 stations. The results showed that the waters of Tidung Island were dominated by muddy substrate which was classified based on the Surface Backscattering Strength (SS) value. Meanwhile, the grain size of the sediment affects the SVb value, where the large the grain size of the bottom sediment, the SVb value will be higher. The higher SVb value the SS value will be higher. Keywords: Bottom Classification, Acoustic Backscatter, Tidung Island

Hambur Balik Akustik Permukaan Substrat Dasar Perairan Menggunakan Echosounder Bim Tunggal Baigo Hamuna; Lisiard Dimara; Sri Pujiyati; Nyoman Metta N. N. Natih
Jurnal Sumberdaya Akuatik Indopasifik Vol 1 No 2 (2017): November
Publisher : Fakultas Perikanan dan Ilmu Kelautan, Universitas Papua

The objectives of this research are to analyze the surface backscattering strength of seabed. The single beam echosounder Simrad EK15 with 200 kHz of frequencies was used for recordings of seabed acoustic backscattering. Data collection was conducted in April 29 – Mei 2 2017 which located in the Yos Sudarso Bay, Jayapura, Papua Province. Sampling substrate was taken for ground truth data using sediment grab. The results show that average value of surface backscattering strength of sand varied between -37.48 dB up -36.03 dB, and mud varied between -46.98 dB up -45.15 dB. It shows also that sand has a high substrate roughness, hardness, and grain size larger than the type of mud substrate. In acoustic backscattering values of sand were greater than mud.

SEBARAN IKAN PELAGIS KECIL BERDASARKAN KEDALAMAN DAN WAKTU DI PERAIRAN TELUK CENDERAWASIH Muhammad Hisyam; Sri Pujiyati; Wijopriono Wijopriono; Erfind Nurdin; Asep Ma'mun
Jurnal Penelitian Perikanan Indonesia Vol 26, No 4 (2020): (Desember) 2020
Publisher : Pusat Riset Perikanan, BRSDM KP.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.26.4.2020.221-232

Perairan Teluk Cenderawasih termasuk dalam WPP NRI 717 yang terhubung dengan Samudera Pasifik dengan potensi perikanan tangkap yang didominasi oleh jenis ikan pelagis kecil. Potensi perikanan di wilayah perairan ini belum sepenuhnya dimanfaatkan berbeda dengan WPP NRI lainnya yang sebagian besar sudah masuk dalam kondisi lebih tangkap atau telah dimanfaatkan secara penuh. Tujuan dari penelitian ini untuk mengetahui sebaran dan kelimpahan ikan pelagis di perairan Teluk Cenderawasih dengan menggunakan metode hidroakustik. Penelitian ini dilaksanakan dengan wahana Kapal Riset Bawal Putih III yang dilengkapi dengan alat pendeteksi ikan hidroakustik. Nilai akustik yang berupa data hasil sounding dikonversikan menjadi nilai panjang ikan berdasarkan hubungan Target Strenght (TS) dan panjang (L) dari ikan yang mendominasi hasil tangkapan. Pengukuran ini dipisahkan menjadi dua bagian yaitu berdasarkan waktu dan berdasarkan kedalaman perairan. Hasil penelitian menunjukan bahwa gerombolan ikan lebih banyak ditemukan pada kedalaman lebih dari 10 m dengan rata-rata jumlah ikan setiap gerombolan antara 7-8 individu. Selang panjang ikan 7,5-9,0 cm paling sering ditemukan disetiap rentang waktu yang memiliki frekuensi kemunculan lebih dari 30% dari seluruh ikan yang terdeteksi. Ikan dengan rata-rata panjang kurang dari 10 cm mendominasi setiap rentang kedalaman dengan jumlah ikan yang terdeteksi lebih dari 500 individu per 1000 m3. Besarnya jumlah kemunculan ikan dengan panjang kurang dari panjang pertama matang gonad diperkirakan bahwa di perairan Teluk Cenderawasih memiliki peranan sebagai daerah asuhan karena banyak ikan juvenil yang terdeteksi.The waters of Cenderawasih Bay are included in WPP NRI 717 which is connected to the Pacific Ocean with potential capture fisheries which are dominated by small pelagic fish species. The potential of fisheries in these waters has not been fully utilized in contrast to other WPP NRI, most of which are already in an over-caught condition or have been fully utilized. The purpose of this study was to determine the distribution and abundance of pelagic fish in the waters of Cenderawasih Bay using the hydroacoustic method. This research was carried out using the RV Bawal Putih III which is equipped with a hydroacoustic as fish detector. Acoustic values in the form of sounding data are converted into fish length values based on the relationship between Target Strength (TS) and length (L) of the fish that dominate the catch. This measurement is separated into two parts, namely based on time and based on water depth. The results showed that fish schools were mostly found at a depth of more than 10 m with an average number of fish per school between 7-8 individuals. The fish length interval of 7.5-9.0 cm is most often found in each time span which has an appearance frequency of more than 30% of all fish detected. Fish with an average length of less than 10 cm dominate each depth range with the number of fish detected in excess of 500 individuals per 1000 m3. The large number of fish appearing with a length less than the length at first maturity size that in the waters of Cenderawasih Bay it has a indication as a nursery ground because many juvenile fish are detected.

ESTIMASI HAMBUR BALIK DASAR PERAIRAN DAN SUMBER DAYA IKAN DEMERSAL MENGGUNAKAN METODE HIDROAKUSTIK Sri Pujiyati; Wijopriono Wijopriono; Mahiswara Nahiswara; Bonar P. Pasaribu; Indra Jaya; Djisman Manurung
Jurnal Penelitian Perikanan Indonesia Vol 13, No 2 (2007): (Agustus 2007)
Publisher : Pusat Riset Perikanan, BRSDM KP.

Survei hidroakustik dilakukan pada bulan Oktober 2002 dengan menggunakan kapal penelitian Mutiara IV (115,19 GT) milik Balai Riset Perikanan Laut, Muara Baru-Jakarta. Alat hidroakustik yang digunakan adalah echosounder EY-500 dengan program pengolahan data EP-500, menu analisis expanded bottom dan bottom layer. Data yang diperoleh adalah nilai back scattering volume dari dasar perairan yang selanjutnya disebut dengan hambur balik dasar perairan, target strength dan densitas ikan demersal dilengkapi dengan data trawl untuk verifikasi. Tujuan penelitian ini adalah untuk mengetahui nilai hambur balik dasar perairan, dan penyebaran ikan demersal secara hidroakustik. Penyebaran nilai hambur balik dasar perairan sepanjang lintasan penelitian yang diperoleh berkisar antara -38,29 sampai dengan -20,02 dB, dengan rata-rata -28,09 dB. Kisaran nilai target strength dari –51,00 sampai dengan –24,01 dB, dengan rata-rata -41,11 dB, adapun nilai densitas ikan berkisar 0,001 sampai dengan 1,640 g m-3 dengan rata-rata 0,342g m-3. Hydroacoustic survey was conducted in October 2002 by using research vessel Mutiara IV (115,19 GT) owned by Marine Fishery Research Institute, Ministry of Marine Affairs and Fisheries. The hydroacoustic apparatus used echousounder EY-500, used software EP-500 for data processing with menu for analyzing the expanded bottom and bottom layer. The obtained data were backscattering volume as sea bottom reflection, target strength and density of demersal fish. The research objectives are to analyze the sea bottom reflection and to explore demersal fish resources by hydroacoustic method. The distribution of sea bottom reflection along cruising area ranges between -38,29 to -20,02 dB, with average value of -28,09 dB. The range of target strength values is distributed between -51,00 and -24,01 dB, with and the average of target strength -41,11 dB. The density of fish ranges between 0,00 dB until 1,64 g m-3 with 0,33 g m 3 in average.

Karakterisasi Pantulan Akustik Karang Menggunakan Echosounder Single Beam Baigo Hamuna; Sri Pujiyati; Totok Hestirianoto
JURNAL INTEGRASI Vol 6 No 2 (2014): Jurnal Integrasi - Oktober 2014
Publisher : Politeknik Negeri Batam

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

The single beam echosounder CruzPro PcFF80 with 200 kHz of frequencies was used for recordings of coral acoustic backscattering. The objectives of this research are to analyze the backscattered signals and to determine the strength and characteristics of coral acoustic backscatters. Data collection was conducted in April 2013 which located in the Seribu Island waters. Acoustics data recording was carried out in Seribu Islands, using single beam echosounder (SBES) CruzPro PcFF80 with operating at 200 and 50 kHz frequencies. An underwater camera was used to validate the acoustic recordings data. The results show that average value of surface backscattering strength (SS) several type of coral at 200 kHz frequency varied between -17.99 dB up -14.65 dB, whereas at 50 kHz frequency varied between -13.33 dB up -9.22 dB. The use of different frequencies will greatly affect the high and low levels of absorption, so that affecting to acoustic backscatter strength.

Pengukuran dan Analisis Nilai Volume Backscattering Strength Perairan Pulau Tidung Menggunakan Single Beam Echosounder M. Hasbi Sidqi Alajuri; Henry M. Manik; Sri Pujiyati
Jurnal Kelautan Nasional Vol 17, No 1 (2022): APRIL
Publisher : Pusat Riset Kelautan

Pulau Tidung merupakan gugusan pulau kecil yang terletak di Kepulauan Seribu Selatan yang memiliki potensi perikanan yang cukup baik. Komposisi hasil tangkapan jaring muroami di Kepulauan Seribu yang mewakili perairan Wilayah Pengelolaan Perikanan Negara Republik Indonesia (WPPNRI 712) Laut Jawa pada tahun 2007 didominasi oleh ikan ekor kuning (Caesio cuning). Tujuan dari penelitian ini untuk mengetahui sebaran spasial dan vertikal nilai Volume Backscattering Strength (SV) dan sebaran spasial densitas Ikan di perairan Pulau Tidung. Survei ini dilakukan untuk memberikan gambaran informasi perikanan di perairan tersebut. Pengambilan data dilakukan sepanjang cruise track dan di 13 stasiun dengan menggunakan instrumen single beam echosounder SIMRAD EK-15 200 kHz. Analisis data dilakukan menggunakan software echoview 4.0 dengan threshold -60 dB re 1μPa sampai -39 dB re 1μPa dan ESDU (Elementary Sampling Distance Unit) 50 ping serta ketebalan 1 m. Hasil yang diperoleh menunjukan bahwa nilai SV secara spasial dari (-59.70 dB re 1μPa sampai -49.40 dB re 1μPa). Pada 13 stasiun pemeruman data akustik diperoleh nilai SV dari (-57.82 dB re 1μPa sampai -54.01dB re 1μPa) dengan nilai densitas ikan antara 0.81 – 6.17 ekor/m3. Sebaran SV dan densitas ikan ini dipengaruhi oleh kedalaman perairan dan aktivitas warga setempat. Sedangkan, sebaran SV ikan damersal dipengaruhi oleh jenis sedimen dasar perairan.

MIGRASI VERTIKAL ZOOPLANKTON DI LAUT BANDA Domey Moniharapon; Indra Jaya; Henry Manik; Sri Pujiyati; Totok Hestirianoto; Augy Syahailatua
Jurnal Kelautan Nasional Vol 9, No 3 (2014): DESEMBER
Publisher : Pusat Riset Kelautan

Analisis migrasi vertikal zooplankton di Laut Banda telah dilakukan berdasarkan nilai hambur balik akustik yang diperoleh dari pengukuran pada tanggal 21-30 November 2013 menggunakan instrument akustik simrad EK 500 yang dipasang pada Kapal Riset Baruna Jaya VII. Hasil analisis menunjukan migrasi vertikal zooplankton di Laut Banda merupakan fungsi dari waktu dan konsentrasi klorofil. Agregasi zooplankton berada pada lapisan permukaan 0-25 meter untuk setiap waktu pengamatan, bersamaan dengan nilai konsentrasi khorofil yang tinggi yakni mencapai 2,1 mg/m3. Nilai volume hamburan balik akustik rerata pada strata kedalaman 0-25 meter adalah -84,31 dB, pada kedalaman 25-50 meter sebesar -82,02 dB dan pada kedalaman 50-75 meter sebesar -83,9 dB.

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

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