The quarry in Alabama that produced the world record is called Ketona Lake. There is pretty cool story at this site :

http://www.worldfishingnetwork.com/stories/post/the-fascinating-story-of-two-world-record-bluegills

Somehow deep inside my memory from viewing this a couple of years ago I must have remembered the cool waters. But only recently considered how this might affect spawns. This quarry filled very fast after a dynamite blast connected it with a spring.

It isn't what we don't know that gives us trouble, it's what we know that ain't so - Will Rogers