Study of Albernoeid fish in the rivers of Tehran province

Identification, species diversity and abundance of Albernoeid fish in the rivers of Tehran province from autumn 2018 to autumn 2019 were carried out for twelve months. For this purpose, 24 sampling stations were selected. The samples were fixed with alcohol after capture by electroshock and transferred to the laboratory for bioassays. The results of this study showed that two types of Alburnoides namaki and Alburnoides eichwaldi were identified in the rivers of Tehran province. In this study, Alburnoides namaki were identified in Jajroud, Nimrud and Hablehrood rivers and Alburnoides eichwaldi in Lar river. The frequency of Alburnoides namaki species is more than Alburnoides eichwaldi species, so that the Alburnoides namaki species has 60 pieces in Jajrud river and in Fasham, Saeedabad, Khojir and Pakdasht stations and 48 pieces in Nimrud. And in Andrey Asour stations, downstream and upstream of Arjmand and Nimrud dam and 27 pieces were caught in Hablehrood and in Zarrin-Dasht, Simindasht, Khamdeh and Anzar stations. But only 12 pieces of Caspian tailoring were caught in the Lar River and at the Lar Dam station. Of course, it should be noted that Albernoeid fish was not caught at any of the Kan and Shur river stations. Alburnoides eichwaldi species was caught in spring and summer and was not observed in autumn and winter. Alburnoides namaki species was observed in all seasons