using a T90 mesh codend and extension

to reduce whiting discards

Target species:
Whiting

Area, Vessel
13 twin-rig catch comparison hauls took place in the Celtic Sea (ICES VIIg) on board MFV Foyle Fisher (G497) (24.7m, 441kW) during April 2016.
Gear type:
demersal (twin rig)

Gear modification
Test gear fitted with codend and extension piece constructed with T90 mesh. Standard gear was identical but the codend and extension piece were constructed with diamond mesh. 80mm nominal double 4mm compact PE twine used on both gears.


Results:
In the T90 codend there were significant reductions in the catches of small whiting and haddock. There were increases in the catches of larger haddock, whiting and plaice. However, there was also a significant increase in catches of small plaice.
Further information:
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. using a T90 mesh codend and extension . In O’Neill, F.G. and Mutch, K. (Eds): Selectivity in Trawl Fishing Gears. Scottish Marine and Freshwater Science Vol 8 No 1.