As we begin to thaw across the state, you may notice small dead fish floating at some Oklahoma reservoirs. Threadfin shad (Dorosoma petenense), a popular baitfish species in Oklahoma, are a subtropical fish native to the deep southern portions of the United States that have been transplanted in Oklahoma waters for their value as a forage fish for most sport fish species. Threadfin shad can’t handle extended periods of cold weather and become stressed in water temperatures below 50 °F. A weath...