Might be crazy but was thinking outside the box. What about something similar to a Gold prospecting dredge, but instead of gold we're sucking in shad and just having the discharge hose pump them in a holding tank.
I already have 3" water pump that I could rig up a nozzle on and use a 4" suction.
Not sure if you guys are familiar with how they work but there wouldn't be much handling of the fish, they would just take a little fast ride inside the suction hose.
