The Kampar River and its tributaries play an important role and have been utilized by communities around the river flow. One of the species of fish that lives in the Kampar River is Hemibagrus hoevenii. Genetic diversity research using the 12S rRNA gene of H. hoevenii baung fish from Kampar River, Langgam District, Pelalawan Regency, Riau Province has never been conducted. The advantages of thi…