Thanks for the reply Shan,
I worried about gizzards affecting the bluegill population so I'm glad you said that as they will of course be the heart and soul of my pond forage. I would hate to do anything that will cause their decline. I had heard of threadfin dieoffs in the winter above the Mason-Dixon line but never Gizzards. That's the first time I've heard that about them. As I am in a temperate area in the country (not by far the coldest or the hottest) they might be able to establish with minimal die off. I would appreciate any more feedback from Pond Boss' with experience stocking gizzard shad - especially in northern or central U.S. climates. Oh and Shan, GO DAWGS!!!