Discard survival of undersized plaice

in the Danish seine fishery

Target species:
European plaice (Pleuronectes platessa)

Area, Vessel
Fishing trials took place in the Skagerrak (ICES IIIa) on board S15 Vera-Marie (16.1 m, 142 kW)
Gear type:
demersal

Gear modification
A standard commercial Danish seine net with diamond mesh size of 125 mm (nominal) was fished. The catch was sorted on deck following usual commercial practise. Undersized plaice that would previously have been discarded, were placed in specially designed holding tanks.


Results:
On average 78% of 281 undersized plaice survived after 14 days in captivity. The trials demonstrated that survival is better when the temperature on the sea bed is low and the exposure to air is short.
Further information:
Junita Karlsen (juka@aqua.dtu.dk)




Citation :
, 2017. Discard survival of undersized plaice . In O’Neill, F.G. and Mutch, K. (Eds): Selectivity in Trawl Fishing Gears. Scottish Marine and Freshwater Science Vol 8 No 1.