Gillnets

Entangling fishes
''Most of the times when casting nets on fishes, they remain entangled in the net itself with no need of beeing actually trapped in it. What if we simply made a net 'wall' standing in the water waiting for the fishes to entangle themselves without having to do anything ? We could use floaters one one edge and weights on the opposite one so it would stand vertically in the water and catch all the bigger fishes trying to pass through! Such technique could facilitate the work of fisherpigs and increase their efficiency.''

Potential Requirements
Unknown