MIDWATER TRAWLS

Tawls, usually much larger than the bottom trawls, designed and rigged to work in midwater, including surface water. Their front net sections are very often made with very large meshes or ropes, which herd the fish schools towards the net aft sections. The fishing depth is usually controlled by means of a net sounder (netsonde). They may be towed by one or two boats. Nedelec and Prado (1990).