This research was conducted in December 2019 in Huta Dipar Village, Gunung Maligas District, Simalungun Regency, North Sumatra Province. The method used is a survey method by directly observing the spaciousness by collecting data through interviews based on a questionnaire, the sample in this study were fish farmer living in the estuary of Huta Dipar as many as 40 fish farmer Based on cons…