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    Updated species profile for Antarctic toothfish (Dissostichus mawsoni)

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    S.M. Hanchet (New Zealand)

    A species profile, covering aspects of the biology, fisheries and stock assessment of both toothfish species was first completed by Everson (2002). A new species profile, specifically for Antarctic toothfish (Dissostichus mawsoni, Norman), was developed by Hanchet (2006). That document concentrated on drawing together mostly unpublished data on D. mawsoni biology including distribution and overlap with D. eleginoides, stock structure, reproduction, age and growth, food and feeding, predation, and depredation. It focused primarily on the biology of D. mawsoni based on information collected from the Ross Sea fishery because that was where most of the work had been carried out. The aim of the current work was to update and revise the species profile of Hanchet (2006). It updates, collates, and summarises new biological data on D. mawsoni. Although the report still focuses primarily on data collected from the Ross Sea fishery, it also presents data from other areas and fisheries where available. It is intended that this report form the basis of a species profile of D. mawsoni as requested at the 2009 CCAMLR meeting (SC-CAMLR XXVIII).

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