The diversity of fish in Sirvan basin was studied in spring and summer of 2011. Twelve stations were selected on the basis of similarity, the confluence of tributaries and human intervention. Some 1454 fish specimens were collected and analyzed among which a total of 17 species belonging to four families Cyprinidae, Salmonidae, Nemacheilidae and Gobiidae were identified. Species richness was not significantly different in the seasons (P> 0.05), but there were significant differences between the seasons species diversity and species diversity in different stations in any season (P <0.05). About 98% of the specimens were in the family Cyprinidae. The lowest frequencies was in Salmonidae (0.07%). About 97% of the species were native. The Mastacembelidae species, Mastacembelusmastacembelus, was observed in Palangan station. The most frequent species was Alburnusmossulensis and the less frequent ones were Carassiusauratus, Lucius pectoralis and Oncorhynchusmykiss. In this study, six exotic species, Ctenopharyngodonidella, Carassiusauratus, Rhinogobiuscf. similis, Hemiculterleucisculus, Pseudorasboraparva and Oncorhynchusmykiss were captured. The highest diversity index (2.48), species richness (1.72) and dominance (0.79) were observed in summer.
Hasankhani M, Keivany Y, Jabaleh A, Pouladi M, Mahboobi Soofiani N. A study on abundance and biodiversity of fishes in Sirvan River in Kurdistan. JAIR 2019; 6 (3) :35-50 URL: http://jair.gonbad.ac.ir/article-1-456-en.html