This research aims to determine the density and quality of water in peat swamp waters and determine the proximate levels in the aquatic plant U. gibba in Peat Swamp Waters, Bukit Batu District, Bengkalis Regency, Riau Province. This research was carried out in January - February 2024, located in peat swamp waters, Bukit Batu District, Bengkali Regency. This research uses a survey method, by cal…