ArticleAuthors: Nguyen, Xuan Huan; Nguyen, Thi Duyen; Nguyen, Thanh Nam (2016)
The Dinh An estuary is one of two mouths of the Hau river and also one of the mouths of the Mekong river, which flows into the East Sea of Vietnam. It has characteristics of a delta estuary and is under the strong influence of the tide. Based on the specimens collected in three field surveys, conducted in July 2011, April 2012 and August 2015, we have identified 103 fish species belonging to 43 families and 13 orders in the Định An estuary. Among these fish orders, Perciformes made up the highest and far superior percentages at all taxonomic levels, with 19 families (accounted for 44.19% of total family number), 44 genera (accounted for 54.32% of total genus number), and 53 species (a... 
