Seine netting is truly ancient, depicted in Egyptian wall paintings dating back to 3,000BC and the principles have barely changed in five millennia. Take a net of a hundred yards or more shaped a bit like a tennis net, weighted at the bottom and buoyed by floats at the top. Anchor one end close to shore and then row out into the estuary in a big semi circle before returning to shore. Then draw in the net making sure it remains tight to the bed, making a purse of the net that gradually gets smaller and smaller until you have the entire net up on the shore, hopefully full of fish.
On the Beaulieu river they have been doing this since medieval times, the net deployed on the chime of high tide to catch sea trout, sea bass and grey mullet which are, naturally enough, the property of The Beaulieu estate, the home of Lord Montagu.
Seine Netting 1 Seine netting 2