It says in the aggregate.... So 20 combined. It's the same question that has been discussed regarding trout. Definition of aggregate: "a whole formed by combining several (typically disparate) elements."
Crappie are their own aggregate, so up to 20 black or white crappie.
Perch are not considered part of the bluegill/sunfish or crappie aggregate. So you can have a total of 20 bluegill/sunfish, 20 black or white crappie, and 20 perch "in your pockets."
Last edited by Dakota; 05-16-2017 at 02:21 PM.