They are extremely sensitive to handling, I was getting loads of them in the cast net a couple weeks ago while shrimping off a friends dock at night. I hade a round live well and aeration. By the time I got done shrimping and went 4 miles down the road to the pond they were all but dead.
we did get a bunch of shrimp though and couple trophy CNBG , to bad the dock is gone now after Mathew ....