Indra Indra, Ananda T. Risky Aisy, Virda Zikria, Sofyan Sofyan
The production of mackerel tuna (Euthynnus affinis) at the Kutaraja Ocean Fishing Port has fluctuated due to variations in fish availability and fishing effort. This study aims to evaluate the management of mackerel tuna by comparing actual fishing conditions with three key management reference points: Maximum Sustainable Yield (MSY) represents the highest level of catch that can be maintained over time without compromising the reproductive capacity of the stock, Maximum Economic Yield (MEY) reflects the optimal level of fishing effort that maximizes economic returns while ensuring resource sustainability, and Open Access (OA) describes a situation with unrestricted fishing access, which typically results in excessive exploitation and the degradation of fishery resources. Additionally, it evaluates the utilization level of mackerel tuna by determining the number of permitted catches in the northern waters of Aceh. The results indicate that under the MSY regime, total production within 10 years reached 425.09 tons, with a fishing effort of 2,270.31 trips and an economic rent of IDR 4.115 million. Under the MEY regime, total production was 414.40 tons, with a fishing effort of 1,910.35 trips and an economic rent of IDR 4.266 million. Meanwhile, in the OA regime, total production declined to 226.84 tons, with a fishing effort of 3,820.71 trips and no economic rent (IDR 0). Based on the bioeconomic analysis and comparisons with actual conditions, it can be concluded that the management of mackerel tuna at the Kutaraja Ocean Fishing Port has led to both biological and economic overfishing. The utilization level of mackerel tuna was 171.1% of the total allowable catch (TAC), indicating an urgent need for policies to regulate fishing effort and catch limits. © 2026, BIOFLUX SRL. All rights reserved.
Agribusiness Department, Faculty of Agriculture, Universitas Syiah Kuala, Darussalam, Banda Aceh, 23111, Indonesia
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