Beam trawl Beam trawls are used principally in waters shallower than 50m in depth to catch flatfish over relatively even sandy seabed.
Pilot whales have been caught in pelagic trawls in the northern North Sea.
Photograph showing close-up of an otter trawl, taken around 1900 Open A steam winch was used to haul the trawls.
Now a confirmed addict, she trawls Paris in search of salty, sensuous pleasures.
In depths beyond the reach of wave motion, and apart from suspension across a submarine gully, which will sooner or later result in a rupture of the cable, the most frequent cause of interruption is seismic or other shifting of the ocean bed, while in shallower waters and near the shore the dragging of anchors or 40 fishing trawls has been mostly responsible.
