Though the walleye is the state fish, crappies and bluegills are caught most often. Crappies bite readily and produce sweet-tasting fillets. There are actually two types of crappies: the black and the white. They are tough to tell apart. Both travel in schools and feed on small fish and aquatic insects. If you catch a crappie, it's most likely a black crappie, which is the more widely distributed of the two species, occurring in most lakes throughout the state. The black crappie prefers deeper, cooler, clearer water than the white crappie does.