Journal of North Khorasan

Abstract Background & Objectives: Given the importance of aquatic arthropods as vector in medical and bioindicator in life sciences and information on the composition of such animals , this study was conducted during 2010 in the city of Kashan. Material & Methods: Descriptive study and sampling at 13 locations and over 39 times in 2303 on the number of larvae, nymphs, Pupa and adults were collected from Lentic and Lotic waters. The collected Samples were transferred to the laboratory and identified by using a stereo microscope and morphological keys. Results:Total 2303 samples over 39 times the sampling of the class insecta 1724 (74.8%) crustaceans, with 579 samples (25.2%),were collected . from insect: Order Diptera, with 1,287 cases (55.8%), Order Trichoptera with 158 samples (6.9%), Order Ephemeroptera 153 samples (6.7%), Order Odonata with 61 samples (2.6%), Order Heteroptera with 26 samples (1.1%), Order Coleoptera with 26 samples (1.1%), Order Plecoptera with 13 sample (0.6) were identified. From Crustacea Class , Amphipoda 414 samples (18%) from Lotic water, Ostracoda 139 samples (6.1%), Copepoda 26 samples (1.1%), from the Lentic waters was collected. Conclusion: For the first time , from Crustacea class ,subclass of Ostracoda and from Diptera order , Ceratopogonidae ,Eryphidae , Dixidae families were reported in Kashan. Therefore it can be concluded that the aquatic arthropods Fauna are very rich in Kasha..