Average Age Of A PanFish – Where you close?

I am on Wisconsin’s Panfish Stakeholder group and when we had our first meeting in September I was talking to a fish biologist and asked for information on the average size for a panfish. This is an average size for a panfish.  Some lakes will grow panfish quicker while others the panfish growth rate may be slower. Where you close when you determined a panfish age?????

PanfishAgeAndSize