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REVISED ASSESSMENT OF TOOTHFISH STOCKS IN DIVISIONS 58.4.1, 58.4.2

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Document Number:
WG-FSA-08/43
Author(s):
D.J. Agnew, C. Edwards, R. Hillary, R. Mitchell (UK) and L.J. López Abellán (Spain)
Agenda Item(s)
WG-FSA-08 - 5.1.4 - Progress towards assessments of other exploratory fisheries
Abstract

Exploratory fisheries for Dissostichus spp. have been operating in these regions for a number of consecutive years with the tagging of toothfish a prerequisite for the legal fishery. This paper presents a detailed study of the catch and effort trends in Divisions 58.4.1 and 58.4.2 and examines 4 assessment methods based on comparative CPUE trends, local depletions, a constant recruitment model and mark recapture data.