using 100mm T90 netting in the extension and codend
to reduce discards in whitefish fisheries
Target species:
Whiting, haddock, cod, hake, anglerfish, megrim, plaice and rays.
Area, Vessel
87 twin trawl hauls took place in 2014 and 2015 on An Triskel (23.95 m, 453 kW) and Damocles (22 m, 442 kW) in the Celtic sea.
Whiting, haddock, cod, hake, anglerfish, megrim, plaice and rays.
Area, Vessel
87 twin trawl hauls took place in 2014 and 2015 on An Triskel (23.95 m, 453 kW) and Damocles (22 m, 442 kW) in the Celtic sea.
Gear type:
Demersal (twin rig)
Gear modification
The netting in the extension and codend is turned by 90º to induce a larger cross-section for the same mesh size.
Demersal (twin rig)
Gear modification
The netting in the extension and codend is turned by 90º to induce a larger cross-section for the same mesh size.
Results:
There was a 50% reduction of total discard by weight. There was a 70 – 90% reduction of gadoid discards, but also a potential commercial loss of small grade gadoids. There were large reductions of discards of boarfish, gurnards, pouts and mackerel. There was no reduction of flat fish or anglerfish discards. Sorting time was reduced and fish quality improved and currently the gear is being used on a voluntary basis in the fishery.
There was a 50% reduction of total discard by weight. There was a 70 – 90% reduction of gadoid discards, but also a potential commercial loss of small grade gadoids. There were large reductions of discards of boarfish, gurnards, pouts and mackerel. There was no reduction of flat fish or anglerfish discards. Sorting time was reduced and fish quality improved and currently the gear is being used on a voluntary basis in the fishery.
Further information:
CELSELEC project: marion.fiche@pecheursdebretagne.eu, fabien.morandeau@ifremer.fr, Marianne.robert@ifremer.fr
CELSELEC project: marion.fiche@pecheursdebretagne.eu, fabien.morandeau@ifremer.fr, Marianne.robert@ifremer.fr
Citation :
Fiche, M, Morandeau, F, and Robert, M.
, 2017.
using 100mm T90 netting in the extension and codend
. In O’Neill, F.G. and Mutch, K. (Eds): Selectivity in Trawl Fishing Gears. Scottish Marine and Freshwater Science Vol 8 No 1.