Fork did supposedly have LMB disease, but I dont think that is why it is declining as a fishery. The reason that it is declining is that it has not been managed. TPWD put in the first fish, and have done little since other than stock some pure Florida's. (according to lakeforktexas.com, the last time it was stocked was 1997.)
F1's are the fish that get big. A 50/50 cross between a Florida and a native. There are few or no F1's left. They have all interbred so much that there are no pure fish left to produce F1's.
Due to the amount of money that Fork has brought Texas, I do not know why the don't stock F1's or at least stock more 100% natives and 100% Floridas. But till they do, the record will most likely not be broken.
