The aim of this research is to determine the type and abundance of microplastics in the digestive tract Clupeichthys goniognathus in the Koto Panjang Reservoir. This research was carried out in December 2023 – February 2024 in West Koto Tuo Village. Sampling was carried out by purposive sampling from the catch by fishermen. Sample analysis and microplastic identification were carried out at t…