the ichthyofauna of the beshar river in kohkiluyeh and boyer-ahmad province, southwest of iran

in the present study, we reported the results of the monitoring and investigations of the ichthyofauna of the beshar river, one of the tributaries of the tigris−euphrates basin in kohkiluyeh and boyer-ahmad province, southwest of iran. the results showed that during a period from 2010 to 2011, a total of 13 fish species belonging to 4 families and 3 orders were recorded in the beshar river. the results indicated that among families of ichthyofauna identified the largest family was cyprinidae with 9 species and 69.23 percent abundance and the dominated species was the garra rufa with 30.28 percent abundance. the beshar river ichthyofauna is a combination of fauna and includes 6.5, 14.3 and 17.7 % of species, family and order of iran freshwater fish fauna respectively.