ABSTRACT This research was conducted on August 14 to September 14, 2019, in Lake Singkarak, West Sumatra Province. The purpose of the study is to analyze the level of effort, catch, and economic rent of Bilih fish in MSY, MEY, and OA conditions and analyze the optimal utilization rate of Bilih fish in Lake Singkarak. The method used is a survey method with the number of respondents as many…