Fish fauna of Bakircay Stream (North Eagean, Turkey)

This study was carried out to determine the current fish fauna of Bakirgay River in seasonal periods between 2017 and 2018. Sampling was carried out in 15 different locations, 11 lotic and 4 lentic location from the small streams of source of the river to the downstream region. The sampling was performed with "Samus 725 G" model electroshock in lotic habitats; with standard fishing-nets which was "TS EN 14757 VVater Quality" in lentic habitats. As a result of he study, the presence of 17 taxa from 7 families including Anguillidae, Atherinidae, Cobitidae, Cyprinidae, Nernacheilidae, Poecilidae and Goblidae were determined. Mugilidae family members and Sataria paw species, which were previously reported vvithin the stream, were not obtained in our study. However, he presence of 6 species, namely Atherina boyeri, Cyprinus carpio, Carassius gibelio, Oxynemachellus teophili, Gambusia holbrooki and Knipowitschla caucasica species were found in this study for the first time. Cyprinidae family with 11 taxa was the biggest family in terms of species diversity in the rive: basin. Anguillidae, Athennidae, Cobibdae, Nemacheilidae, Poecilidae and Gobitlae families are represented by one taxon. in order to protect the rivers biodiversity and to 'maintain fishing activities effectively, the pollution sources should be overcomed firstly. in order to protect the biodiversity of the river and to maintain fishing activities effectively, first of all, pollution sources and exotic fish species that may have negative effects on the natural fish fauna of the basin should be bring under control. in addition, it will also be useful to organize events to inform local government and community about the importance and protection of aquatic environments.