شناسایی ماهیان بومی رودخانه گاماسیاب همدان

This study was carried out from 2002 to 2002 in Gamasyab River of Hamadan province of Iran in order to identitication of indigenous species of this water resource. The main objedive of this study was to fish identilication for scientific purposes, geographical distribution pattern. preparatiun atlas of the fishes. introduction of commercial species and awareness on ecological situation of their natural habitats. Also providing necessary information for conservation and sustainable use of these valuable stocks and minimizing environmental impacts of unsecured utiliz.ation. Sampling were carried out by seiccting 15 sampling stations through the river and fishing by electro fisher and cast ner Identification accomplished by valid identitication keys in species level. Photography and slides provides and 10 pieces of each species tagged by unique codes for preservation in national museum. 50 morphometric and meristic characteristics studied for scientilic identification.. Indigenous tishes belong to 14 species, 10 genus, J family and 2 order. Indeed 2 exotic species belong to Cyprinidae and Salmonidae families recognized. From these indigenous species. II belong to Cyprinidae family and only one species belong to Sisoridae famil)'. Key words: Indigenous species - Identification - Fish -

کلیدواژه ها:

ماهیان بومی ، رودخانه گاماسیاب ، شناسایی ، همدان ، حوضه کرخه ، آب های سطحی ، رژیم آبدهی ، دبی سیل ، دبی مواد جامد ، کیفیت منابع ، خانواده کپورماهیان ، ‭Balitaridate ، ‬خانواده گربه ماهیان ، ماهیان غیربومی ، ماهیان پرورشی ، خانواده آزادماهیان