Identifikasi Jenis Plankton Sebagai Bioindikator Perairan Di Anak Sungai Roka…

Plankton are microscopic organisms that live on the surface of the water, whose movement follows the current, and can serve as bioindicators of aquatic ecosystems. The tributary of the Rokan River is located near residential areas, meaning various human activities can potentially affect the surrounding water quality. This study aims to identify the types of plankton that function as bioindicato…