Bidyanus Bidyanus Or Silver Perch Royalty-Free Stock Image

Silver perch (Bidyanus bidyanus) are a medium-sized freshwater fish endemic to the Murray-Darling river system in south-eastern Australia. Their scientific name comes from an aboriginal name for the species — Bidyan — recorded by Major Mitchell on the Barwon River on his 1832 expedition. (Mitchell's original scientific name for the species was Cernua Bidyana.) Silver perch are not a true perch of the Perca genus, but are instead a member of Terapontidae or 'grunter' family.