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Population Dynamics of Mackerel Scad (Decapterus macarellus) Landed at the Sibolga Archipelago Fishing Port Hairul Umam; Ricky Winrison Fuah; Rosi Rahayu; Muhammad
International Journal of Marine Engineering Innovation and Research Vol. 10 No. 4 (2025)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v10i4

Abstract

This study analyzed the population dynamics of mackerel scad (Decapterus macarellus) landed at the Sibolga Archipelago Fishing Port, North Sumatra, Indonesia, to assess growth, mortality, recruitment, and exploitation status. Length–frequency data from 200 specimens were analyzed using the FISAT II software. The asymptotic length (L∞) and growth coefficient (K) were estimated at 40.4 cm TL and 0.51 year⁻¹, respectively, indicating a moderately fast-growing species typical of tropical small pelagics. The total, natural, and fishing mortalities were 3.91, 1.08, and 2.84 year⁻¹, resulting in an exploitation rate (E = 0.73), which exceeds the optimum level (Eopt = 0.5), signifying overexploitation. Recruitment analysis showed two annual peaks (March–April and September–October), reflecting a bimodal spawning pattern. The length at first capture (Lc = 16.2 cm TL) was smaller than the length at first maturity (Lm ≈ 17.0 cm TL), suggesting premature harvesting. The yield-per-recruit model indicated E₀.₁ = 0.607 and Emax = 0.749, reinforcing that the stock is fully exploited. These findings underscore the urgent need to regulate fishing pressure through mesh-size adjustments and seasonal closures to sustain D. macarellus fisheries in western Indonesian waters.
Education on Energy Efficient Underwater Light Emitting Diode (LED) Technology for Boat Lift Nets in Aceh Besar Fuah, Ricky Winrison; Agustina, Imelda; Riswan, M.; Rusminda, Heni; Gurki, Yeni Safitri; Halim, Raji Ufranal; Rahmah, Alvi; Pandang, Ivonda Vicana; Nurhayati; Mardhatillah, Inda; Afranisa, Zahra; Mizulni, Putri Julia; Dolorosa, Maretty Twentyna; Rahayu, Rosi; Zulfahmi, Ilham
Bakti Cendana Vol 9 No 1 (2026): Bakti Cendana: Jurnal Pengabdian Masyarakat
Publisher : LPPM Universitas Timor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32938/bc.v9i1.10021

Abstract

The coastal areas of Aceh Besar have high fisheries potential, but traditional fishermen using bagan boats in Gampong Lhok Layeun are facing declining catches due to technological limitations. The conventional lights used have limited light coverage and high fuel consumption. This service activity aims to improve the knowledge and skills of fishermen through education on energy-efficient underwater Light Emitting Diode (LED) technology as an alternative solution. The implementation method includes four stages: initial survey, socialisation, discussion, and evaluation and monitoring. The activity involved 25 participants consisting of fishermen, Panglima Laot, academics, and village officials. The results showed an increase in participants' understanding of underwater LED technology, with an average pre-test score of 57 increasing to 84 in the post-test. A total of 100% of participants expressed interest in adopting this technology, and showed high enthusiasm during the socialisation and discussion. This activity proves that participatory and educative approaches can strengthen traditional fisheries innovation at the local level.
Komposisi Hasil Tangkapan Alat Tangkap Jaring Salam (Jaring Insang) Nelayan Tapanuli Tengah Fuah, Ricky Winrison; Rahayu, Rosi
Rosenberg : Jurnal Rosenberg Teknologi Penangkapan Ikan Vol 1 No 2 (2023): Rosenberg: Jurnal Teknologi Penangkapan Ikan
Publisher : Prodi TPI Politeknik Perikanan Negeri Tual

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

Abstract

Penyebutan jaring insang oleh nelayan Tapanuli Tengah yaitu jaring salam merupakan alat tangkap yang digunakan untuk menangkap ikan pelagis kecil dengan ikan dominan tertangkap yaitu ikan kembung. Walaupun demikian, jenis-jenis ikan lainnya kadang tertangkap terkadang tidak, sehingga perlu dilakukan penelitian terkait komposisi hasil tangkapan. Tujuan dari penelitian ini yaitu mengetahui kontruksi dan komposisi hasil tangkapan jaring salam nelayan Tapanuli Tengah. Pengumpulan data secara metode survei, dan analisis data menggunakan metode statistik deskriptif. Hasil yang diperoleh yaitu konstruksi jaring salam umumnya sama dengan jaring insang lainnya yaitu terdiri dari badan jaring, pelampung dan pemberat, tali ris atas dan bawah, tali pemberat dan tali pelampung, serta pelampung tanda. Jenis ikan yang tertangkap adalah ikan kembung, ikan belanak, ikan gulamah, ikan deman, udang mantis, dan rajungan dengan kembung merupakan ikan yang dominan tertangkap.
Co-Authors Achiar, Anshari Luthfi Maulana Afranisa, Zahra agustina, imelda Agustina, Imelda Ahmad Fauzan Lubis Ahmad Sadiqi Marbun Alvi Rahmah Andhini, Nadia Anne Rumondang Anshari Luthfi Maulana Achiar Aziz, Muh Aksa Bima Theo Cristian Purba Darondo, Franky A. Darsan, Ismi Musdalifah Diniah . Diniah Diniah Dolorosa, Maretty Twentyna Eka Lisdayanti Fahrizal, Azrul Fatmawati, Riska Femi Riza Fiki Harjuni Fis Purwangka Gondo Puspito Gurki, Yeni Safitri Halim, Raji Ufranal Huda, Mhd Aidil Huda, Muhammad Aidil Hutagalung, Amanda Isa Putra Ilham Fajri, Ilham Ilham Zulfahmi Ivonda Vicana Pandang Joko Samiaji Junaidi M. Affan Karyanto, Karyanto Katili, Lidya Khayakni, Mutiara Al Khayakni, Mutiara Al- Khobir, Muhammad Latiful Khobir, Muhammad Latiful Khobir, Muhammad Latiful Kurniawan Fazri Kurniawan Fazri Lase, Wanda Fernanda Lubis, Nur Hafsah manik, ria retno Marbun, Ahmad Sadiqi Marbun, Ahmad Sadiqi Mardhatillah, Inda Mardhatillah, Indah Masykur, Masykur Mizulni, Putri Julia Moch Ricky Dariansyah Moch Ricky Dariansyah Muhamad Latiful Khobir Muhammad Muhammad Akbar, Wahyu Muhammad Arif Muhammad Latiful Khobir Muhammad Wahyu Akbar Muhammad Zainul Arifin Muna, Zakyatul Muna, Zakyatul Muna, Zakyatul Mutiara Alkayakni Harahap Nadia Andhini Nurhayati Nurhayati Nurhayati Nurhijayat, Akhmad Nursamsi Nursamsi Pandang, Ivonda Vicanda Purba, Bima Theo Cristian Rahayu, Rosi Rahayu, Rosi Rahmawati, Rahmawati Ratna Mutia Aprilla Riswan, M Rosi Rahayu Rumondang, Anne Rusminda, Heni Sarumaha, Herman Shofian Nanda Adiprayoga Sugiharsono Sugiharsono Taryono Tirta Anugerah Umam, Hairul Wulandari, Tri Laela Yuli Purwanto, Yuli Zakyatul Muna Zakyatul Muna