Invasive Aquatic Plant Species of Chenderoh Reservoir, Malaysia and Jatiluhur Reservoir, Indonesia

The sampling was carried out in two sampling sites; Chenderoh Reservoir, Malaysia and Jatiluhur Reservoir, Indonesia. These reservoirs are the initial of cascade reservoirs on Perak River and Citarum River. The aquatic plants distribution and abundance were recorded, and water quality parameters were measured. A total of 23 aquatic plant species from 14 families were identified. The populations of water hyacinth (Eichhornia crassipes) and giant salvinia (Salvinia molesta) were recorded in all sampling points of both reservoirs. Based on the TSI (Chl a), Chenderoh Reservoir was subjected to a mesotrophic, whereas, Jatiluhur Reservoir was subjected to an eutrophic reservoir. E. crassipes and S. molesta which were abundant in those reservoirs were listed in the 100 world worst invasive alien species.