Status Kesuburan Danau Pekak Desa Buluh Nipis Kabupaten Kampar Provinsi Riau …

Nygard Index can be used to determine the trophic state of waters. Calculation of this index is based on the number of phytoplankton species that are belonged to these following groups, namely Chlorococcales, Euglenophyceae, Centric diatom, Myxophyceae and Desmidiaceae. To understand the trophic state of the Pekak Lake, a research has been conducted in March-April 2018. There were 3 sampling st…