It will take a lot of planning, for sure. The issue I saw was simple safely sorting. In the beach seine we were keeping male chinook and passing females. Try grabbing 20-30 pound fish without too much stress. In the purse being we hit a slug of fish and there was no way to sort other than to bring them on board (ie kill). I worked some permanent traps that fished the whole creek and floods/freshets/leaf fall could be challenging. Of the three, I think traps would work best, but they do require attention. Fish wheels could probably work well too.