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Potential benefits from improved selectivity in the northwest Mediterranean multispecies trawl fishery

AutorBahamon, Nixon ; Sardà, Francisco ; Suuronen, Petri
Palabras claveImproved selectivity
Multispecies trawl fishery
Norway lobster
Yield predictions
European hake
Fecha de publicación2007
EditorInternational Council for the Exploration of the Sea
CitaciónICES Journal of Marine Science 64(4): 757-760 (2007)
ResumenThe management scheme in the northwest Mediterranean multispecies demersal fishery is based largely on technical measures such as minimum mesh and landing sizes. However, selectivity of the trawls used is poor, and large numbers of juvenile fish are caught. We assess the consequences of improved gear selectivity for European hake, Norway lobster, poor cod, and greater forkbeard by assuming that the whole fleet would switch from the current 40 mm diamond-mesh to a 40 mm square-mesh (SM40) codend. The results suggest that, immediately after implementation, the yield-per-recruit (Y/R) would be reduced by up to 20% for the three fish species but that, within five years, the Y/R of European hake would increase by .50%, provided fishing effort did not change markedly. For poor cod and greater forkbeard, the comparable increases would be more moderate, whereas for Norway lobster, the gains would only be small. Overall, marked long-term benefits might be obtained by changing to SM40 codends
Descripción4 pages, 4 figures, 1 table
Versión del editorhttp://dx.doi.org/10.1093/icesjms/fsm052
Identificadoresdoi: 10.1093/icesjms/fsm052
issn: 1054-3139
e-issn: 1095-9289
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