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All Journal Jurnal Perikanan dan Kelautan Journal of Innovation and Applied Technology Journal of Environmental Engineering and Sustainable Technology ECSOFiM (Economic and Social of Fisheries and Marine Journal) Albacore : Jurnal Penelitian Perikanan Laut Jurnal Pengabdian Masyarakat (ABDIRA)
Ali Muntaha
Fakultas Perikanan Dan Ilmu Kelautan Universitas Brawijaya Malang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Energy Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Mechanical Engineering Nursing Social Sciences Other

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Journal : Journal of Environmental Engineering and Sustainable Technology

 1 
ACCURACY ANALYSIS OF DISTANCE MEASUREMENT USING SONAR ULTRASONIC SENSOR HC-SR04 ON SEVERAL TYPES OF MATERIALS Rihmi, Mihrobi Khalwatu; Bintoro, Gatut; Rahman, Muhamad Arif; Puspito, Gondo; Muntaha, Ali
Journal of Environmental Engineering and Sustainable Technology Vol 11, No 01 (2024)
Publisher : Directorate of Research and Community Service (DRPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2024.011.01.2

Abstract

Sonar is a technology that uses the propagation of sound waves to detect the position of an object. Usually, fishermen use sonar to detect fish locations. The problem is that the price of sonar is still expensive, so not all fishermen can afford to use it. One of the devices that can be developed is the HC-SR04 module. HC-SR04 has simple components, and the price is cheap. The use of HC SR04 is still very minimal, so it is necessary to analyze the accuracy of its distance readings on various objects and conditions. The research was conducted using experimental methods in August-September 2023 at the Fishing Exploitation Laboratory, Faculty of Fisheries and Marine Sciences, Brawijaya University. The distance data generated by HC-SR04 is used to measure ceramic, Styrofoam, and fish. Based on the research results, it is known that ceramic and styrofoam objects have a calculated t value = 0 while the one-tail Critical t = 1.65, which means the average distance produced by the tool is the same as the average distance by manual measurement. Meanwhile, in the t-test, the fish samples obtained a value of t stat = 23.24 and t Critical one-tail = 1.65. This shows that the tool will show distance measurement results that differ from manual measurements. Furthermore, the RMSE value of distance measurements on ceramic and Styrofoam objects obtained an average value of 0, which means the measurements are very accurate. Meanwhile, the average RMSE value for fish objects = 37.67, which means that the tool measurements are inaccurate.
HARVEST CONTROL RULES OF DEMERSAL FISHERIES IN BRONDONG WATER, LAMONGAN, EAST JAVA Harlyan, Ledhyane Ika; Lianingrum, Yulis Dwi; Setyohadi, Daduk; Tumulyadi, Agus; Muntaha, Ali
Journal of Environmental Engineering and Sustainable Technology Vol 8, No 2 (2021)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jeest.2021.008.02.3

Abstract

Multispecies demersal fisheries management in Brondong waters have been managed by conventional single-species approach for determining catch quota or annual allowable biological catch (ABC). This might be impractical since a multispecies fishery should be managed by a multispecies fisheries management approach. The feedback harvest control rule (HCR) is a harvest control rule that has been validated and might be applied for a multispecies fishery. The aim of this study is to compare the conventional single-species approach and the feedback HCR in order to estimate the annual ABC. In this study, the annual ABC was calculated by applying two HCRs, the conventional single-species approach that applying the Schaefer surplus production model into the catch and effort of the dominant demersal fisheries data series of 2011 – 2020. The results showed that the Schaefer model provided the annual ABC higher than the feedback HCR estimation. Therefore, it was safe to apply the feedback HCR than the Schaefer model to determine the annual ABC. Under data-limited conditions, the feedback HCR might be an option to manage multispecies fisheries.
Co-Authors Daduk Setyohadi Dewa Gede Raka Wiadnya Eko Sulkhani Yulianto Eko Sulkhani Yulianto Fatrah Sulaeman Hutasuhut Gatut Bintoro Gondo Puspito Hanif Rafdhiansyah Insani Ledhyane Ika Harlyan Lianingrum, Yulis Dwi Mihrobi Khalwatu Rihmi Muh. Arif Rahman Pangestuti, Edriana Rahman, Muhamad Arif Rahman, Muhammad Arif Rihmi, Mihrobi Khalwatu Siahaan, Ian Bernard Sulkhany, Eko Sunardi Sunardi Sunardi Sunardi Tri Djoko Lelono Tri Nanda Citra Bangun Tumulyadi, Agus Zainul Abidin