[Fr., from Gk. perke.] The, name of several species of fishes of the genus Perca, frequenting the fresh waters and coasts of temperate and tropical regions. The fresh-water perch is widely distributed in lakes, ponds, and rivers in Europe, Asia, and North America. It is greenish yellow on the back, and bright yellow on the sides, which are marked with from five to seven blackish bands. The perch is very voracious, devouring smaller fishes, insects, worms, etc. It can exist out of water for a considerable time.