keanekaragaman plankton sebagai bioindikator kualitas air sungai siak, kecama…

The Siak River is one of the major rivers in Riau Province that experiences environmental pressure due to industrial, household, market and water transportation activities. This condition has the potential to reduce the quality of the waters, so a bioindicator approach such as plankton is needed to assess trophic status and pollution levels. This study aims to identify the types of plankton and…