The purpose of this study was to determine the type and abundance of microplastics found in the stomach of lelan fish in the Kampar River. This research was conducted in December 2023 - January 2024 at 3 stations, namely: Station 1 (upstream - Merangin Village), Station 2 (middle - Langgini Village) and Station 3 (downstream - Sungai Tonang Village) twice with a span of 1 month. Captured fish s…