Fishing and Gear Technology (2+1) copy 1

Unit 11 - Trawl fishing gear and operation

11.6.Stern Trawling
11.6.5.Operation
I. While towing, the warps pass atwartship from the winch round rail mounted sheaves to the gallows and doors.
II. During hauling, otther doors are pulled up to the gallows and are attached to the warps. Independent wires are disconnected from the towing brackets and is connected to leads from drum. Drum rotates to take pull and ground cables are disconnected from blackstrap and wound on to the drum.
III. The mouth of the net is wound on drum. A ring strap is used to lift body and vessel turns to star board. Bull rope being taken forward to bring codend along side.
Trawl along side, the body is lifted to fill codend. Codend lift is taken by second whip.
Full codend is lifted and dumped and return to the water and filled again.