Threadfin Shad are quite temperature sensitive, they are intolerant to cold water. High moralities occur at 45 º F (7 º C), and most fish are dead at 40 º F (4.4 º C).
Do the shad decide to live morally when the water temp gets to 45 degrees in hopes of being spared? You might want to double check your spelling if you are going to call out others bud.