ewest, we have caught a ton of perch since last fall so I am assuming they have spawned successfully. I use minnow traps to check on yoy fish and have not seen any. Plenty of gills and bass.

Dave, they don't look thin to me, but will confess that i know the least about YP of all the fish in my pond. I did see the perch that were originally stocked and they were in the 6 - 8" range.