Article Per Year (5 Year)
p-Index From 2021 - 2026
0.23
P-Index
This Author published in this journals
All Journal International Journal of Marine Engineering Innovation and Research
Muhammad
Departement of Fisheries Resource Utilization, Syiah Kuala University, Banda Aceh, 23111, Indonesia.
Automotive Engineering Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

Published : 1 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 1 Documents
Search

 1 
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.
Co-Authors Fuah, Ricky Winrison Hairul Umam Rosi Rahayu