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A new method to produce high resolution maps of effort and catches in longline fisheries

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Número de documento:
WG-FSA-18/43
Autor(es):
N. Gasco, C. Péron, C. Chazeau, A. Martin, P. Pruvost and G. Duhamel
Presentado por:
Mr Nicolas Gasco (Francia)
Aprobado por:
Ms Doro Forck (Secretaría de la CCRVMA)
Punto(s) de la agenda
Resumen

Fishing vessels using ~10 km long bottom longline operate in the French EEZ of Kerguelen and Crozet and report catches by species along with geographical coordinates. This papers presents a new method to better take into account the information associated to the path of the line instead of only the mid-point as commonly used to calculate catch rates.