That usually means not much is going on - and that's most likely the case. Not much going on for me, I'm catching ancient fish that can breathe on land. That could change soon. The crappie are definitely in transition right now. This exact time last year they were already up, but not so much this year. Also, shallow vegetation is gone, we're talking even lily pad stems for the most part, so oxygen may be a problem in spawning areas as well.
Good luck