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On maturity level of gonads of Antarctic toothfish Dissostichus mawsoni from the southern Ross Sea (Subarea 88.1) in December 2005–February 2006

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Document Number:
WG-FSA-06/9
Author(s):
V.G. Prutko (Ukraine)
Agenda Item(s)
WG-FSA-06 - - undefined
Abstract

Data on length and gonad-weight distribution, maturity and gonadosomatic index (GSI) of Antarctic toothfish Dissostichus mawsoni were collected from Subarea 88.1 on board of the longliner “Yantar” under Russian flag in the 2005/06 season.
Our supposition is that the predominant part of Antarctic toothfish population observed in SSRU –H, K, L in December 2005 – February 2006 will not be ready for participation in spawning of the current year. Ovaries of the most females weighed less than 2.0 kg; average GSI value of all the females examined did not exceed 2.0%.