Balon's ruffe
Balon's ruffe, also known as the Danube ruffe, is a species of perch native to the drainages of the Danube from delta to Germany and the Dnieper from delta to Kiev and is expected to occur in the Dniester. It inhabits areas with sand or mud substrates. It is active at night and feeds on small invertebrates. This species can reach a length of SL. It is named after Polish-Canadian ichthyologist Eugene K. Balon.
