A type of bottom trawl in which the horizontal opening of the net is provided by a heavy beam mounted at each end on guides or skids which travel along the seabed. On sandy or muddy bottoms, a series of ‘tickler’ chains are strung between the skids ahead of the net to stir up the fish from the seabed and chase them into the net. On rocky grounds, t [..]

a trawl that is held open with a beam – commonly used for collection of fish and shellfish on the surface of the seabed and in the near-surface sediments

A trawl whose mouth is extended by a long spar or beam, as distinct from the otter trawl, which is distended by boards.