|Title||Mixed fisheries management : Is the ban on discarding likely to promote more selective and fuel efficient fishing in the Dutch flatfish fishery?|
|Author(s)||Batsleer, J.; Rijnsdorp, A.D.; Hamon, K.G.; Overzee, H.M.J. van; Poos, J.J.|
|Source||Fisheries Research 174 (2016). - ISSN 0165-7836 - p. 118 - 128.|
Aquaculture and Fisheries
LEI NAT HULPB - Aquatische Hulpbronnen
|Publication type||Refereed Article in a scientific journal|
|Keyword(s)||Beam trawl - Landing obligation - Plaice - Pulse trawl - Quota - Sole|
We model the potential effects of a discard ban on the annual fishing strategy of individual fishers in a mixed fishery under individual quota management. The North Sea beam trawl fishery, which catches large amounts of undersized plaice, is used as a model system. Under a discard ban, fishing is restricted to the fishing grounds and weeks where the maximum revenue can be realised with other species while catching the quota of the restricted species with a reduced bycatch of undersized fish. Model results suggest that, if properly enforced, a discard ban provides an incentive to implement more selective fishing gears that catch fewer small fish and are more fuel efficient (pulse trawl). If a discard ban is not properly enforced, restrictive quota do not necessarily result in the intended decrease in discarding as the fishery continues to fish while discarding the over-quota catch and least valuable size classes caught.