Last years ago I collaborated with Sam Caldwell about the flounder catching boat CCA purchased for the Texas Parks & Wildlife Department’s Sea Center Texas (as well as other hatcheries) to use for broodstock collection for an article in CCA’s “Currents”.
They are using specially rigged nets to catch the flounder and the first people on the coast to use this method were the good folks at the University of Texas Marine Science Institute in Port Aransas. Here’s video of me catching one with them November 2009 after missing on my first two attempts.