Garuda - Garba Rujukan Digital

p-Index From 2021 - 2026

2.386

P-Index

This Author published in this journals

All Journal Buletin PSP Jurnal Teknologi Perikanan dan Kelautan Jurnal Ilmu dan Teknologi Kelautan Tropis Indonesian Journal of Electronics and Instrumentation Systems Maspari Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Waste Technology Maspari Journal Jurnal Ilmu Kelautan Spermonde Jurnal Kelautan Tropis Aceh Journal of Animal Science Jurnal Teknologi dan Sistem Komputer Journal of Applied Geospatial Information Omni-Akuatika JURNAL ILMIAH GEOMATIKA JURNAL INTEGRASI Jurnal Penelitian Perikanan Indonesia Jurnal Kelautan Nasional Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital PELAGICUS: Jurnal IPTEK Terapan Perikanan dan Kelautan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan Jurnal Perikanan Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital SNTE

Hestirianoto, Totok

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

Author-ID : 2477562

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering 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 Engineering Environmental Science Immunology & microbiology Library & Information Science Mathematics Mechanical Engineering Physics Other

Published : 42 Documents Claim Missing Document

Claim Missing Document

Articles

1 2 3 4 5

Design a Photobioreactor for Microalgae Cultivation with the IOTs (Internet of Things) System Ayi Rahmat; Indra Jaya; Totok Hestirianoto; Dedi Jusadi; Mujizat Kawaroe
Journal Omni-Akuatika Vol 16, No 1 (2020): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2020.16.1.791

Internet of Things (IOTs) is an evolution of the concept of internet use that aims to expand the benefits of internet connectivity that is connected continuously with the ability to control remotely (remote control), share data (data sharing), carry out continuous monitoring (real time monitoring) and current (up to date). This research related to the cultivation of microalgae as a source of food and energy of the future, in the design of photobioreactors that are integrated with IoT, so that it can be monitored continuously, controlled and used as a model for the development of greater microalgae cultivation technology. Cultivation in this study was a closed system photobioreactor, will produce microalgae that are not contaminated by external contaminants, growth analysis can be done based on the parameters that influence it, including the cultivation room temperature, lighting level (luminance), and the color of water in the photosynthesis process of microalgae, and also control of water circulation. Visualization of controlled parameters includes, temperature parameters, light intensity, water color changes. The observed parameters will be displayed in a graphical user interface (GUI) in real time using the internet. The advantages of this system can see the growth of microalgae in detail over time, and obtained raw data that can be processed for various research purposes.

Seahorse Acoustic Reflection on Active and Passive Moving Condition : A Prelyminary Observation in Watertank Dony Apdillah; Indra Jaya; Henry Munandar Manik; Totok Hestirianoto; Try Febrianto
Journal Omni-Akuatika Vol 14, No 1 (2018): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Identification and estimation of seahorse population in the marine environment are difficult to obtain. Nowadays, the observations use visual techniques, biologic and statistics. Bio-statistics approach has some limitations, such as times consuming and low accuracy. An approach was required to provide more accurate information, comprehensive, and based on telemetry (underwater acoustic). Acoustic reflection is an important information to observe underwater objects that can be used for stock assessment and behavioral studies. This research is a preliminary observation and measurement of seahorse Target Strength (TS). The results show that there are differences in TS value of seahorse at the active and passive moving condition. The fluctuations of TS values in active conditions are higher than those in passive conditions. This study has also found that the average TS value of seahorse in active moving conditions is -54.49 dB (± 3 dB). It is greater than the mean TS value in passive moving conditions -59.64 dB (± 3 dB). The approach of immobile fish (the passive moving condition) on the seahorse is better to increase the correlation value between TS to size. The relationship between TS and the size of the seahorse are discussed in the results of this study

WIRELESS SENSOR NETWORKS BUOY FOR COASTAL WATERS OBSERVATION Rizqi Rizaldi Hidayat; Indra Jaya; Totok Hestirianoto
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol. 8 No. 1 (2016): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Department of Marine Science and Technology, Faculty of Fisheries and Marine Science, IPB University

The availability of data in real time and continuous is important to monitor in environmental change as early as possible. Wireless sensor networks (WSN) offer a new paradigm in the field of oceanography that can measure the parameters of complex marine environment using a moored buoy. This paper described design of a data transmission system with a moored buoy and tested the performance of WSN instrument based on ZigBee protocol radio module for monitoring coastal water environment in real time. Instruments were divided into two i.e., (1) five sensors served to measure sea surface temperature, stored the data, and transmitted the data to the base station, and (2) a coordinating instrument that placed on the bases station served to receive and record all measurement results of each sensor. The testing was done by deploying the instrument sensors in waters with depths of 2 to 5 meters and a coordinating instrument was located on the ground as a base station. Each instrument's sensor measure sea surface temperature, store, and transmit it to other nearby sensors and forward data to the next sensor and then to the next sensor send it to the base station. The Packet Delivery Ratio (PDR) value wa used as an indicator to determine the instrument performance and the values were from 89.69% up to 100% with transmission range up to 430 meter and battery endurance was up to 26 hours. The result showed that a buoy moored instrument based on WSN ZigBee radio module protocol has the potential for monitoring coastal water environment in a real time. Keywords: mooring buoy, wsn, zigbee

ESTIMASI DENSITAS IKAN DI ESTUARI MUSI PROVINSI SUMATERA SELATAN DENGAN METODE HIDROAKUSTIK Freddy Supriyadi; Indra Jaya; Sri Pujiyati; Totok Hestirianoto
Maspari Journal : Marine Science Research Vol 12, No 2 (2020)
Publisher : UNIVERSITAS SRIWIJAYA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36706/maspari.v12i2.12819

Penelitian Estimasi Densitas Ikan di Estuari Musi Provinsi Sumatera Selatan dengan Menggunakan Metode Hidroakustik telah dilaksanakan pada Bulan Agustus 2019 untuk mengetahui nilai densitas ikan dan distribusi spasialnya. Data yang diperoleh dapat digunakan sebagai data acuan dalam mengkaji stok ikan. Hasil penelitian didapatkan nilai densitas berkisar 0,1 – 3,0 ind/m3 dengan nilai distribusi spasial tertinggi pada daerah dengan kedalaman kurang dari 3 m.Kata Kunci: Hidroakustik, densitas ikan, Estuari Musi.

Akurasi Tematik Peta Substrat Dasar dari Citra Quickbird (Studi Kasus Gusung Karang Lebar, Kepulauan Seribu, Jakarta) (Thematic Accuracy of Bottom Substrate Map from Quickbrid Imagery (Case study: Gusung Karang Lebar, Kepulauan Seribu, Jakarta)) Muhammad Banda Selamat; Indra Jaya; Vincentius P Siregar; Totok Hestirianoto
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 17, No 3 (2012): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Salah satu kelemahan metode koreksi kolom air adalah dapat memunculkan bias dalam estimasi rasio koefisien attenuasi. Bias ini berkontribusi pada nilai akurasi tematik peta substrat dasar. Studi ini menggunakan pendekatan zonasi geomorfologi untuk meningkatkan akurasi tematik peta substrat yang dihasilkan dari metode koreksi kolom air. Nilai piksel citra Quickbird dikonversi ke radiansi dan dilanjutkan dengan koreksi kolom air untuk menghasilkan peta substrat dasar dengan tiga tema ekosistem, yaitu ekosistem pantai berpasir dengan substrat dominan pasir, ekosistem lamun dan terumbu karang. Data lapangan dikelompokkan menggunakan metode Bray curtis dan menjadi dasar bagi reklasifikasi. Profil geomorfologi pada citra satelit disadap dari gabungan kanal hijau dan merah, mengacu pada hasil survei batimetri. Pendekatan kombinasi ini terbukti dapat meningkatkan akurasi tematik peta substrat dasar hingga lebih dari 20%.Kata kunci: quickbird, substrat dasar, akurasi tematikBias may occur on attenuation coefficient ratio estimated from water column correction method. This bias then contribute to thematic accuracy of bottom substrate images. This study used geomorphologic spatial zonation to improve thematic accuracy of bottom substrate maps that produced from water column correction method. Quickbird pixel values were converted to the top of atmosphere radiance and followed by water column correction to make bottom substrate map with three themes ecosystem i.e. sandy ecosystem, seagrass ecosystem and coral reef ecosystem. Field data were grouped using Bray Curtis method and become basis of image reclassification. Geomorphological profile was extracted from green and red composite images, refer to a bathymetric survey. These combined approaches were significantly proved to improve thematic accuracy up to more than 20%.Key words: quickbird, bottom subtrate, thematic accuracy

Rancang Bangun Instrumen Sistem Buoy Menggunakan A-Wsn Protokol Zigbee Untuk Pengamatan Ekosistem Pesisir (Development of Buoy System Instrument using A-WSN ZigBee Protocol for Coastal Ecosystem Monitoring) Acta Withamana; Indra Jaya; Totok Hestirianoto
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 18, No 4 (2013): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Luasnya perairan dan lingkungan laut yang tidak bersahabat menimbulkan tantangan tersendiri untuk diobservasi. Aktivitas observasi secara konvensional di laut, yang menggunakan kapal sebagai wahana bergerak, membutuhkan biaya yang tinggi dan tidak efisien untuk memperoleh resolusi spasial dan temporal yang diinginkan. Buoy tertambat telah lama digunakan sebagai salah satu pilihan untuk aktivitas observasi laut. Namun ukuran yang besar dari rancangan buoy yang ada pada umumnya tidak cocok untuk pengamatan ekosistem pesisir. Perkembangan teknologi semikonduktor yang pesat melahirkan konsep wireless sensor network (WSN). Komunikasi protokol ZigBee memiliki kelebihan penggunaan energi yang efisien dan kemudahan pemasangan. Riset ini dilakukan untuk mengembangkan instrumen buoy tertambat dan menguji apakah WSN dapat diaplikasikan di wilayah pesisir. Buoy tertambat yang dikembangkan memiliki kinerja yang baik dan stabil sebagai wahana instrumen. Kinerja jaringan ZigBee menunjukan tingkat keberhasilan pengiriman data sebesar 100% pada uji coba statis. Menggunakan empat buah baterai NiMH, instrumen ini dapat bekerja selama kurang lebih 39 jam untuk coordinator dan router, serta 89 jam untuk end device. Pengujian di lapangan menunjukan hasil terburuk sebesar 84.94% keberhasilan pengiriman data pada E1, dan hasil terbaik sebesar 100% keberhasilan pengiriman data pada R1 dan E3. Data suhu permukaan laut yang diterima juga dapat menggambarkan sebaran suhu permukaan di Pulau Panggang. Hasil penelitian memberikan gambaran bahwa Instrumen Sistem Buoy Menggunakan A-Wsn Protokol Zigbee sangat berpotensi untuk digunakan dalam pengamatan ekosistem pesisir. Kata kunci: instrumen, buoy tertambat, ZigBee, suhu permukaan laut, observasi pesisir Ocean observation has become a challenge due to its vast and rough condition. The conventional observation, for example using ship as a mobile platform, is very expensive and inefficient to obtain desired spatial and temporal resolution of sampling. Mooring buoy has been used as one of the options to carry out the task. However the big dimension in the existing buoy system is not suitable for coastal ecosystem monitoring. Rapid development in semiconductor technology has brought wireless sensor network (WSN). ZigBee communication protocol has the advantage of energy efficient and ease of implementation. This research was conducted to developing mooring buoy platform as well as analyzes the possibility of WSN to be implemented in coastal environment. The test on performance of developed mooring buoy was good and stable as the platform of instrument. The network performance of ZigBee radio gave 100% data transmitting and receiving success ratio in the static test. Using four Ni-MH batteries, the instrument can be operated for roughly 39 hours for coordinator and router, and 89 hours for end device. The sea field test shows that the worst is 84.94% success ratio on E1 and the greatest is 100% success ratio on R1 and E3. The received temperature data also accurate to describe the distribution of sea surface temperature at Panggang Island. Results of this study suggest that application of Buoy System instrument using ZigBee-WSN protocol has the potential to be used in the observation activities of coastal ecosystems. Keywords: mooring buoy, instrument, WSN, ZigBee, coastal observation

Dolphins Encountered in Kepulauan Seribu Yusli Wardiatno; Chikarista Irfangi; Totok Hestirianoto
ILMU KELAUTAN: Indonesian Journal of Marine Sciences Vol 15, No 4 (2010): Ilmu Kelautan
Publisher : Marine Science Department Diponegoro University

Kepulauan Seribu has been considered as one of the dolphin migration routes. This is based on the number of reports from fishermen and communities in Kepulauan Seribu on the existence of cetacean. The purpose of this study was to assess the type, behavior, deployment location, and estimate the number of dolphins found in Kepulauan Seribu. Research was conducted on May 10th to May 27th, 2010 and 22nd June to 3 July 2010. Observations were made every day, except Friday, and started at 7:00 a.m. to 6:00 pm. Observation by boat was used in the research. Observation of the amount, type, and behavior of cetacean had been done visually. Based on research results, it can be concluded that the species of dolphins found in Kepulauan Seribu are Delphinus delphis, Pseudorca crassidens, Stenella longirostris, and Tursiops truncatus, with a total number of 145 individuals. Species of dolphins are most often found is T. truncatus, whereas the least common type is Delphinus delphis. In addition there are also calf and unidentified species. The location of the encounter with the dolphins most often occurs around Pulau Gosong Congkak (Karang Congkak) and Karang Lebar. Judging from the observed behavior, it can be said that Kepulauan Seribu is a foraging area and migration routes for cetacean. In addition, Kepulauan Seribu was also considered as nursery ground for calf. Key words : Cetacean, dolphin, Kepulauan Seribu Kepulauan Seribu diduga sebagai salah satu rute migrasi berbagai jenis lumba-lumba. Hal ini didasarkan pada jumlah laporan dari nelayan dan masyarakat di Kepulauan Seribu pada keberadaan lumba-lumba. Tujuan dari penelitian ini adalah untuk menilai jenis, perilaku, lokasi penyebaran, dan estimasi jumlah dan jenis Cetacean yang ditemukan di Kepulauan Seribu. Penelitian ini dilakukan pada 10-27Mei dan 22 Juni-3 Juli 2010. Pengamatan dilakukan setiap hari, kecuali hari Jumat, mulai jam 7:00-18:00. Penelitian ini menggunakan metode eksplorasi dengan menggunakan perahu motor. Pengamatan jenis, jumlah, dan perilaku lumba-lumba telah dilakukan secara visual. Berdasarkan hasil penelitian,dapat disimpulkan bahwa spesies lumba-lumba yang ditemukan di Kepulauan Seribu adalah Delphinus delphis, Pseudorca crassidens, Stenella longirostris, dan Tursiops truncatus, dengan jumlah total 145 individu. Spesies lumba-lumba yang paling sering ditemukan adalah T. truncatus, sedangkan tipe paling umum adalah Delphinus delphis. Selain itu ditemukan juga bayi lumba-lumba dan spesies yang tidak teridentifikasi. Lokasi perjumpaan dengan lumba-lumba paling sering terjadi di sekitar Pulau Gosong Congkak (Karang Congkak) dan Karang Lebar. Dilihat dari perilaku yang diamati, dapat dikatakan bahwa Kepulauan Seribu merupakan daerah mencari makan dan rute migrasi Cetacean. Selain itu, Kepulauan Seribu juga diduga sebagai daerah asuhan bagi bayi lumba-lumba. Kata kunci : Cetacean, lumba-lumba, Kepulauan Seribu

Bioacoustic Spectral Whistle Sound And Behaviour Of Male Dolphin Bottle Nose ( Tursiops aduncus) At Safari Park Indonesia, Cisarua Bogor Muhamad Zainuddin Lubis; Sri Pujiyati; Totok Hestirianoto
Waste Technology Vol 4, No 1 (2016)
Publisher : Diponegoro University

Whistle sound is generally used for echolocation purposes, while the sound of the blast-beat and whistles play a major role in internal and inter-group communication.The purpose of this research is to know the power spectral patterns and fluctuations in sound based on frequency and Power Spectral Density (PSD) of the sounds produced by dolphins and observing the position of dolphins , Noisy Time Domain (NTD) and behavior using underwater camera, and also comparing between time and sound spectrum. Data recording was taken at tha Safari Park of Cisarua Bogor in Indonesia, by taking data in show pool and show pool. The results showed that salinity before feeding time in the show pool with replication 1,2, and 3 has salinity value that is equal to 30 ‰. Data at the show pool before feeding with replications 1,2, and 3 has a salinity of 29 ‰. Power Spectral Density (PSD) of the whistle sound before feeding was different from one another, but it has the same frequency range. The highest intensity values is at sound whistle 3 before feeding time at the show pool with an intensity value of 28.03 dB with frequency interval of 14 642 Hz-16000 Hz. F-test at the show pool before meals has heterogeneous value. Treat before meals at the show pool has a value of P <0.001 and P <0.001. Value Noisy Time Domain have differences with each other and have a lot of different sound patterns. In general, there are real differences are evidenced by F test on a range of time at each whistle on physiotherapy and swimming pool show in the time before meals. The position of dolphins in a pool show more dominant and often in the bottom of the pool, the position of the dolphins affect the frequency.

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.

Sistem pemantauan suhu dan kelembapan pasir sarang penyu menggunakan Arduino Uno Hendi Santoso; Totok Hestirianoto; Indra Jaya
Jurnal Teknologi dan Sistem Komputer Volume 9, Issue 1, Year 2021 (January 2021)
Publisher : Department of Computer Engineering, Engineering Faculty, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jtsiskom.2020.13725

Penelitian ini mengembangkan sistem pemantauan sarang penyu secara real-time menggunakan mikrokontroler Arduino Uno untuk memudahkan peneliti atau masyarakat dalam mengukur kelembapan dan suhu pasir yang dimanfaatkan untuk bidang tertentu. Pengukuran suhu pasir menggunakan sensor DS18B20 yang tahan air, kelembapan pasir menggunakan sensor SKU:SEN0193, serta suhu dan kelembapan udara menggunakan DHT22. Modul kartu mikroSD berfungsi untuk menyimpan data hasil perhitungan sensor secara real-time dan terus-menerus. Desain alat ukur dirancang untuk mudah dibawa dan digunakan. Bahan yang digunakan adalah plastik polypropylene yang mempunyai dimensi 11x6x18 cm3. Berdasarkan analisis menggunakan uji regresi linier, diperoleh hasil bahwa tidak ada perbedaan yang signifikan dalam pengukuran suhu menggunakan sensor DS18B20 dan termometer air raksa serta kelembapan pasir menggunakan sensor SKU:SEN0193 dan alat ukur kelembapan analog.

Co-Authors Acta Withamana Adi Lutfi Hanafi Agustina Sartika Yos Ekaristi Manik Aisyah Aisyah Ali Suman Amron Amron Andi Achmadi Ari Purbayanto Asep Ma'mun Asep Priatna Asep Priatna Augy Syahailatua Ayi Rahmat Baigo Hamuna Chikarista Irfangi DEDI JUSADI Domey Moniharapon Domu Simbolon Dony Apdillah Dwi P. I. Mahdi Dwi Putra Yuwandana Elson, La Faaris, Said M Freddy Supriyadi Freddy Supriyadi Handoko, Dadang Hasan, Rozaimi Che Hawari, Aqil Hendi Santoso Henry Munandar Manik Hidayat, Esa Fajar Husal, Siddiq Husaini Imam Mudita Indra Jaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Karen von Juterzenka Karlisa Priandana Keni Sultan Khairul Amri Kholilullah, Ibrahim Krisna Rendi Awalludin Lestari, Nurhaliza Amalia Mohammad Imron Muhamad Rakif Panguale Muhamad Zainuddin Lubis Muhammad Banda Selamat Muhammad Banda Selamat Muhammad Farhan Muhammad Mujahid Muhammad Z. Lubis Mujizat Kawaroe Mulyono Mulyono Nazzla, Rauzatul Prasetiawan, Agung Prasetiyo, Shidiq Lanang Pratiwi Dwi Wulandari Rabbani, Mochamad Rafif Rahmat, Ayi Rizqi Rizaldi Hidayat RR. Ella Evrita Hestiandari Saifur Rohman Siahaan, Gracia Tiffany Solikin, Steven Sri Pujiyati Sulaeman Martasuganda Suparman Sasmita Syahrin, Win Alfi Syahrul Purnawan Syamsul B. Agus Try Febrianto Vincentius P Siregar Wiliandi Setiawan Yusli Wardiatno Zulfathri Randhi

Title

Found 42 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 42 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 42 Documents
Search