Abstract. This research was conducted February 2022 in the waters of Bengkalis Regency, Riau Province. This study was aimed to analyze the level of effort and catch of Terubuk fish under conditions of Maximum Sustainable Yield (MSY), Maximum Economic Yield (MEY) and Open Access (OA) and calculate economic rents and analyze the level of Terubuk fish resources in the waters of Bengkalis Regen…