Assessment of the utilization status of fourfinger threadfin (Eleutheronema tetradactylum) in the waters of Dumai City, Riau Province

¹ Marine Science Study Program, Faculty of Fisheries and Marine Science, Universitas Riau, Pekanbaru 28293 Riau, Indonesia
² Marine Microbiology Laboratorium, Department of Marine Science, Faculty of Fisheries and Marine Science, Universitas Riau, Pekanbaru 28293 Riau, Indonesia
³ Department of Social-Economic, Faculty of Fisheries and Marine Science, Universitas Riau, Pekanbaru 28293 Riau, Indonesia

^* Corresponding author: feliatra@lecturer.unri.ac.id

Abstract

One of the local fish species exploited in the waters of Dumai is fourfinger threadfin (Eleutheronema tetradactylum). The purpose of this research is to analyze the maximum sustainable yield, optimal efforts, and utilization levels of fourfinger threadfin. Data on catches and efforts were collected from the annual reports of the Department of Fisheries Dumai City over a period of ten years. The results of the analysis using the Walter-Hilborn model indicate that the maximum sustainable yield of fourfinger threadfin is 234 ton year^-1, and the optimal effort (E_opt) is 404 unit year^-1. The average utilization rate of fourfinger threadfin from 2014 to 2023 is 28 percent. The resource is currently moderately exploited (25-75%), indicating that the stock has been harvested close to its maximum sustainable yield value. It is advisable to increase fishing efforts without compromising the sustainability of fourfinger threadfin in the waters of Dumai City.