using an inclined netting panel
to separate fish from nephrops
Target species:
Nephrops and mixed round and flatfish
Area, Vessel
16 twin trawl catch comparison hauls were carried out in the North Sea on board the Amity II PD177 (21m, 400kW)
Nephrops and mixed round and flatfish
Area, Vessel
16 twin trawl catch comparison hauls were carried out in the North Sea on board the Amity II PD177 (21m, 400kW)
Gear type:
twin trawl
Gear modification
a four panel section was fitted into the extension of one of the nets of a twin rig prawn trawl. The four panel section had an inclined panel made of square mesh netting. Fish which went over the panel were directed to the upper codend and those which went though it were directed to the lower codend. Three different mesh sizes of the inclined square mesh panel were tested: 200, 300 and 400mm.
twin trawl
Gear modification
a four panel section was fitted into the extension of one of the nets of a twin rig prawn trawl. The four panel section had an inclined panel made of square mesh netting. Fish which went over the panel were directed to the upper codend and those which went though it were directed to the lower codend. Three different mesh sizes of the inclined square mesh panel were tested: 200, 300 and 400mm.
Results:
A large proportion of the fish catch can be separated from the target species, Nephrops. Nearly all haddock and whiting went over the panel regardless of the mesh size and into the upper codend. Larger quantities of cod, anglerfish, plaice and other flats go through the inclined panel as the mesh size increases and into the lower codend. The quality of the fish and nephrops in the separated codends is better.
A large proportion of the fish catch can be separated from the target species, Nephrops. Nearly all haddock and whiting went over the panel regardless of the mesh size and into the upper codend. Larger quantities of cod, anglerfish, plaice and other flats go through the inclined panel as the mesh size increases and into the lower codend. The quality of the fish and nephrops in the separated codends is better.
Further information:
Kenny Coull (k.coull@sff.co.uk); James Birnie (j.birnie@sff.co.uk)
Kenny Coull (k.coull@sff.co.uk); James Birnie (j.birnie@sff.co.uk)
Citation :
Coull, K. and Birnie, J.
, 2017.
using an inclined netting panel
. In O’Neill, F.G. and Mutch, K. (Eds): Selectivity in Trawl Fishing Gears. Scottish Marine and Freshwater Science Vol 8 No 1.