Location
NE Kansas pond 1 acre 8 foot deep

Observations
Water turbid temp high 60s
Adult bluegill and crappy dying other bluegill eating feed as if nothings wrong.
No bass seen dying
Bass tough to catch possibly in the act of spawning
Bluegill spawning, stirring up silt.
No fish gulping for air on the surface.
Counted 20 dead bluegill and 4 crappy.
Crappy population is maintained at low numbers
I first noticed a couple dead fish 2 days ago.

Ideas?