Abstact The purpose of this study was to determine the weight of the bait and the effective depth for operating traps in Kesuma Village, Pangkalan Kuras District, and Pelalawan Regency. The bait weight is divided into 50 g, 100 g, and 150 g, while the depth is divided into 1 m and 5 m. This research was carried out in January 2022 at the Nilo River in Kesuma Village. The method used in thi…