The effect of dam construction on the Ostracoda (crustacea) assemblages in Kazandere Stream,Thracea,Turkey

Natural running water systems are important for ecological conditions of many organisms. dams are built across a running water valley for multiple-purpose,therefore natural running water system is divided to three different habitats; stream,reservoir and spillway. in order to understand the effects of dam construction on the ostracoda dispersion,ostracod fauna of three habitats,kazandere stream and its branches that flow into the reservoir,newly formed kazandere reservoir and spillway were investigated and compared. even though 17 species were determined from the streams,only two species from the reservoir and three species from the spillway were found. copyright 2012 zoological society of pakistan.