This research was held in December 2015 in KM Bakti Fortuna 30 GT on the West Coast Sibolga. The purpose of this study is to (1) assess the sustainability of fishing effort through productivity value Lift Net ( bagan perahu) catching Lift Net ( bagan perahu) (2) determine the species composition of the catch and the frequency of appearance of the catch. This study uses a case study on one unit …