using a large square mesh panel (80 mm mesh size) in the last tapered section of a trawl

to improve trawl selectivity

Target species:
whiting, red mullet, pouting, gurnards and squid

Area, Vessel
43 pairs of alternate hauls were carried out from June to July 2017 on board 20-24 m bottom trawlers fishing in the Western Channel.
Gear type:
demersal

Gear modification
A two panel trawl with an 80 mm codend was fitted with a large 80 mm square mesh panel in its last tapered section.


Results:
The results show a decrease of catches of undersized whiting, but no difference for whiting greater than 30 cm. The two trawls have an equivalent selectivity from this size for this species. There is a decrease of the catches of under-sized mackerel and horse mackerel, but there are also losses of size 30 of mackerel (landed by the studied fleet).
Further information:
OP COBRENORD 02 96 70 81 04, contact@cobrenord.com http://www.cobrenord.com/2018/07/17/parution-du-rapport-final-du-projet-rejemcelec/




Citation :
, 2017. using a large square mesh panel (80 mm mesh size) in the last tapered section of a trawl . In O’Neill, F.G. and Mutch, K. (Eds): Selectivity in Trawl Fishing Gears. Scottish Marine and Freshwater Science Vol 8 No 1.