Numéro du document:
WG-FSA-90/17
Approuvé par:
Admin Admin (Secrétariat de la CCAMLR)
Accessibility Categories
Open Access (OA)
Review Finalised:
Non
Point(s) de l'ordre du jour
Résumé
Catches of Champsocephalus gunnari from the Kerguelen Shelf and Skiff Bank stocks were re-calculated from those used by the Working Group on Fish Stock Assessment in 1989 using length-frequency data for the years 1981 to 1990. Cohort analysis yielded a Stock Biomass of 22 711 tonnes in 1988 for the Age 2 Kerguelen Shelf stock, an order of magnitude lower than that calculated from a biomass survey in 1988 by the USSR. This biomass is consistent with that from previous cohorts and indicates a possible declining trend in the abundance of this stock.