In this study, fish samples were collected from 7 large river systems (Iyidere, Güneysu, Büyükdere, Melyat, Fırtına, Yeşil and Çağlayan) between April 2004 and April 2014 in order to reveal the fish fauna of the Rize Province. As a result of this study 14 species (Lampetra lanceolata, Salmo coruhensis, Salmo rizeensis, Alburnoides fasciatus, Alburnus derjugini, Barbus escherichii, Capoeta
... [Show full abstract] banarescui, Chondrostoma colchicum, Rutilus frisii, Squalius sp., Cobitis splendens, Mugil cephalus, Liza aurata, Ponticola rizensis) belonging to 5 ordo (Petromyzoniformes, Salmoniformes, Cypriniformes, Mugiliformes, Perciformes) and 6 families (Petromyzonidae, Salmonidae, Cyprinidae, Cobitidae, Mugilidae, Gobiidae) were determined.