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

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Numéro du document:

WG-FSA-18/43

Auteur(s):

N. Gasco, C. Péron, C. Chazeau, A. Martin, P. Pruvost and G. Duhamel

Soumis par:

Nicolas Gasco

Approuvé par:

Doro Forck (Secrétariat de la CCAMLR)

Point(s) de l'ordre du jour

WG-FSA-18 - 8 - Other business

Résumé

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.