Catch comparison trial using quad-rig Nephrops trawls (4x multi-rig trawls) to compare the catch from:
3x experimental knotted PE square mesh codends with mesh sizes of between 40 and 80mm
1x control or standard (diamond mesh) 70mm codend.
As a backup to the above gears, should one or more fail, we will be carrying 2x SELTRA sorting boxes. The SELTRA sorting box is a 4-panel codend section (3.5m approx.) constructed with 70mm mesh and incorporating: a 1.5m long 300mm square mesh panel or a 1.5m long 270mm diamond mesh panel.