Fish have a specialized sense organ called the lateral line which works much like radar and helps them navigate in dark or murky water.  

White crappie are often found in murkier water than black crappie. They primarily eat minnows, but will also eat crayfish and worms.

May 22, 2012 | Categories: From the Gremlin

White crappie are often found in murkier water than black crappie. They primarily eat minnows, but will also eat crayfish and worms.