Phytoplankton Community as A Bioindicator for Water Quality of Sumi Dam, Bima Regency

The waters of the Sumi dam have an important role in accordance with purpose its construction. Therefore, monitoring water quality becomes necessary because good is requirement for every organism. This study aims to examine based on community and species diversity phytoplankton. sampling location was determined purposive method. Water samples were taken April 2021 using a 20 micron plankton net preserved formalin at concentration 4% preservation. results showed that identified phytoplankton Dam consisted 80 13 classes. index value high. Based as bioindicator, are included unpolluted category.