a lot of the problems come from guys fishing tx's this time of year know to catch good fish they will mostly be in 20-30' of water and when caught and cranked straight up to the surface thier bladder can't release the air fast enough, there are some articles about how to "bleed" their bladders if everyone would do this it would help, also like everyone knows a real good aireator will minimize the fatalities too, i installed a flow-rite system in my bullet and it really really puts the oxygen in the water and i've not lost any fish since, but i do take lots of time to ensure regularly that i exchange the water with fresh water often and run the aireator all night too.
the last club tx we had on watts bar, about the end of july, it was HOT and i got upset when going to the ramp to put my fish back in i had to wade out about 6 or 7 feet and get a 5 lb'er and one 3 lb'er that were floating upside down, that others had released, and i held their mouths open and worked them back and forth for 10 minutes until they finally swam off and appeared to be lively, this doesn't mean that they survived but at least they had a chance! the shock of laying there lifeless for several minutes, may take it's toll! one of them was just floating and appeared to be dead and wouldn't even move when i originally found him, it took longer to get him to swimming upright!
what bothers me is the guys who act like they are done because they have weighed their fish and just dump them in the water and walk off!!!
to be able to replenish our lakes everyone needs to protect the resources as much as possible or none of us will have anything to do with all the tackle we have except hold casting tx's!
by the same token i see lots of guys that keep and eat every fish they catch too, the sad part is a lot of them can be lucky enough to catch much larger fish than i can, and they just eat them, if you are fishing for food to eat- keep what you need, or are willing to clean, and let the others go!