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All Journal Indonesian Fisheries Research Journal Indonesian Journal of Electrical Engineering and Computer Science
Sadiyah, Lilis
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology

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CHARACTERIZING OF TUNA FISHERIES ASSOCIATED WITH FADS IN INDONESIA FMA 713-717 Widodo, Agustinus Anung; Wudianto, Wudianto; Proctor, Craig; Satria, Fayakun; Hargiyatno, Ignatius T; Sadiyah, Lilis
Indonesian Fisheries Research Journal Vol 28, No 2 (2022): (December 2022)
Publisher : Jakarta Technical University of Fisheries

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/ifrj.28.1.2022.%p

Abstract

To support improving fisheries management on tuna fisheries in Indonesia FMA (I-FMA) 713-717, an Indonesia - Australia research collaboration conducted a study during November 2013 – December 2015 at two key tuna fishing bases including Kendari (Southeast Sulawesi) and Sorong (West Papua). This study involved an enumeration program with skipper interviews, direct observations and biological sampling. The study showed that all fish aggregating devices (FADs) in Indonesian waters are anchored fish aggregating devices (aFADs). Three main fisheries associated with aFADs include purse-seine (PS), pole and line (PL) and hand-line (HL). The PL fishery based in Sorong had the highest FAD-success rate-FSR (84.9 %) compared to other fisheries including PL and HL based in Kendari. The average catch rates of PL and PS boats based in Sorong 2013-2015 were 10,352 and 33,854 kg/trip/boat respectively. The average catch rates of PL and HL boats based in Kendari were 2,819 and 1,135 kg/trip/boat respectively. Apart from the catch of HL based in Kendari, the largest proportion of the catch was juvenile yellowfin tuna (j-YFT) and juvenile bigeye tuna (j-BET). The proportion of sharks and billfish as by-catch species, in the landings of HL and PL boats based in Kendari and Sorong was extremely low.
Quality of services LoRaWAN satellite communication Purnama, Iwan; Dwi Putra, Muhammad Taufik; Samsinar, Samsinar; Aulia, Masyitah; Shina, Ibnu; Yuliyus Maulana, Yudi; Benny Louhenapessy, Bendjamin; Dominggus Lekalette, Johanis; Parulian Sitompul, Peberlin; Manik, Timbul; Nendra Wibawa, Lasinta Ari; Prasetyo Adi, Puput Dani; Sinaini, La; Lestari, Pratiwi; Sulaeman, Yaya; Rohman Setiawan, Iwan; Nugraha, Budi; Yati, Emi; Sadiyah, Lilis; Jatmiko, Irwan; Sacipto, Rian; Sariningrum, Ros
Indonesian Journal of Electrical Engineering and Computer Science Vol 40, No 3: December 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v40.i3.pp1401-1416

Abstract

This research discusses research that focuses on the capabilities of satellitebased LoRa, for satellite positions orbiting in low earth orbit (LEO). The expectation of low power wide area network (LPWAN) satellite can find the quality of transmitting data using LoRaWAN which is part of LPWAN and can provide quality of service (QoS) with high-quality real-time sensor data, low latency, long-range, low-power, no attenuation signal, no problem with obstacles in terrestrial areas, and other benefits that can be widely optimized. This article uses a comprehensive analysis of mathematical calculations as well as precise and accurate simulations for the actual development of satellite-based LPWAN. The satellite-based IoT is unlimited in terms of distance, to provide good services to all IoT users in the world. The comparison with terrestrial measurements is analyzed in detail, especially the signal attenuation factor that causes a lot of signal loss and data is not well received. Several methods are used to help reduce collision data, such as adaptive data rate (ADR) which can reduce collisions by 30%.
Co-Authors Aulia, Masyitah Benny Louhenapessy, Bendjamin Budi Nugraha, Budi Dominggus Lekalette, Johanis Hargiyatno, Ignatius T Irwan Irwan Iwan Purnama Lestari, Pratiwi Manik, Timbul Nendra Wibawa, Lasinta Ari Parulian Sitompul, Peberlin Prasetyo Adi, Puput Dani Proctor, Craig Putra, Muhammad Taufik Dwi Rohman Setiawan, Iwan Sacipto, Rian Samsinar Samsinar Sariningrum, Ros Satria, Fayakun Shina, Ibnu Sinaini, La Sulaeman, Yaya Widodo, Agustinus Anung Wudianto, Wudianto Yati, Emi Yudi Yuliyus Maulana, Yudi