Species diversity of Freshwater mussels in Nam Oun reservoir, Sakon Nakhon

Abstract

Species diversity of freshwater mussel in Nam Oun reservoir, Sakon Nakhon province, was studied by sample survey during of November 2017 to June 2018. The results showed that 9 species of freshwater mussel were recorded Corbicula moreletiana was a common species that was observed from every stations and sampling times. The average species richness index, diversity index and evenness index were 1.43±0.28, 1.32±0.21 and 0.55±0.07, respectively. Interestingly, there were five species that have been classified as data deficient in International Union for Conservation of Nature (IUCN) Red List (Pilsbryoconcha exilis compressa, Pseudodon inoscularis cumingi, Pseudodon vondembuschianus ellipticus, Cristaria plicata and Scabies crispate). This study suggested that biological information such as habitat, distribution and reproduction were very important in future study.