The purpose of this research was to determine diatom species in Unda River, BadungRiver, Lake Beratan, estuarine and marine waters of Padang Galak, that can be used to indicatedeath scene caused by drowning. Waters collected to 50 liters by using plankton net and carriedin a 25 ml glass bottle. The results of the research found that there were 60 species diatom from26 genera, 23 families, 2 orders, and 1 class. Among the 60 species in this research, can beindicate as 12 species are typical species of Unda River, 5 species are typical species of BadungRiver, 1 species is typical of Lake Beratan, 9 species are typical of Padang Galak Estuary, and 19species are typical to Padang Galak Sea. Among the typical species in every research site, thereare one species that has higher number: Fragilaria sp. 1 in Unda River, Gomphonema sp. 3 inBadung River. Cymbella sp. 3 in Lake Beratan, Cyclotella sp., in Padang Galak Estuarine, andCocconeis sp. 2 in Padang Galak Sea.Keywords: forensic, diatom, river, lake, sea
                        
                        
                        
                        
                            
                                Copyrights © 2015