... Mekong River originates in China in the upper Mekong Basin, then ows through ve othercountries (Myanmar, Lao PDR, Thailand, Cambodia and Viet Nam) in the Lower Mekong Basin todischarge to the ... recorded from the Mekong basin, and about two thirds of these (including most of the common species) are from purely freshwater families (Hortle, 2009), sothere is a very large gap in the information ... Fin: Standard LengthA guide to larvae and juveniles of some common sh species from the Mekong River BasinxFigure 3. Map of the Lower Mekong River BasinMyanmarChinaPage 1Introduction The...