perch
Perch Family
Members of the perch family have two dorsal fins that are completely separated. The first fin is spiny while the second fin has soft rays. Walleye, sauger, and yellow perch are popular members of this family. Darters, which seldom exceed four inches in length, also belong to the perch family.
[link]http://www.npwrc.usgs.gov/resource/tools/ndfishes/perch.htm[/link]