When Sam Callaway of Corpus Christi boated this 13.34-lb. largemouth April 9 during a charity bass tournament at O.H. Ivie Lake in Texas, he felt certain he’d clinched the tourney’s big-bass check. What Calloway didn’t know was that he’d won a much bigger prize by catching the 500th fish in the Texas Parks and Wildlife Department’s Sharelunker program, an innovative project that promotes catch-and-release fishing and attempts to boost the size of the state’s trophy bass by entering the largest angler-caught fish into a selective breeding program.