Some preliminary data about dinamics and sexual maturity of the population of Chondrostoma nasus nasus (Osteichthyes, Cyprinidae) in the Isonzo basin (Friuli Venezia Giulia, North Eastern Italy)
Some preliminary data about dinamics and sexual maturity of the populations of Chondrostoma nasus nasus (Osteichthyes, Cyprinidae) in the Isonzo basin (Friuli-Venezia Giulia, North-Eastern Italy)