increasing codend mesh size from 70 to 80mm
to reduce Nephrops discards
Target species:
Nephrops
Area, Vessel
13 quad-rig catch comparison hauls took place in the western Irish Sea (ICES VIIa) on board a 22m Nephrops trawler during July 2015.
Nephrops
Area, Vessel
13 quad-rig catch comparison hauls took place in the western Irish Sea (ICES VIIa) on board a 22m Nephrops trawler during July 2015.
Gear type:
demersal (quad rig)
Gear modification
70 and 80mm (nominal) diamond mesh codends were tested simultaneously on identical quad-rigged Nephrops trawls (fishing circle 380 x 80mm).
demersal (quad rig)
Gear modification
70 and 80mm (nominal) diamond mesh codends were tested simultaneously on identical quad-rigged Nephrops trawls (fishing circle 380 x 80mm).
Results:
There were significant reductions in the proportion of small Nephrops caught. Economic modelling showed that there was no loss in profitability over the course of a fishing season. Catching fewer small Nephrops provides the opportunity to catch increased quantities of larger more valuable size grades.
There were significant reductions in the proportion of small Nephrops caught. Economic modelling showed that there was no loss in profitability over the course of a fishing season. Catching fewer small Nephrops provides the opportunity to catch increased quantities of larger more valuable size grades.
Further information:
Daragh Browne browned@bim.ie <A href=http://www.bim.ie/our-publications/fisheries/> http://www.bim.ie/our-publications/fisheries/ </A>
Daragh Browne browned@bim.ie <A href=http://www.bim.ie/our-publications/fisheries/> http://www.bim.ie/our-publications/fisheries/ </A>
Citation :
Browne, D.
, 2017.
increasing codend mesh size from 70 to 80mm
. In O’Neill, F.G. and Mutch, K. (Eds): Selectivity in Trawl Fishing Gears. Scottish Marine and Freshwater Science Vol 8 No 1.