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    Results of a CCAMLR sponsored research survey to monitor abundance of subadult Antarctic toothfish in the southern Ross Sea, February 2013

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    Document Number:
    WG-SAM-13/32
    Author(s):
    S.J. Parker, S.M. Hanchet, S. Mormede, A. Dunn (New Zealand) and R. Sarralde (Spain)
    Submitted By:
    Sarah Mackey (CCAMLR Secretariat)
    Agenda Item(s)
    WG-SAM-13 - 3 - Review of scientific research proposals for other areas (e.g. closed areas, areas with zero catch limits, Subareas 88.1 and 88.2)
    Abstract

    At its 2011 meeting, the Scientific Committee agreed that a time series of relative abundance from a well-designed survey could be a useful input into the Ross Sea stock assessment model. The first survey was completed in February (Hanchet al. 2012a). In this paper we provide the results of the second survey in the time series.



    The objectives of this second survey were:

    1. To carry out a longline survey to monitor subadult toothfish in the southern Ross Sea (strata A–C) using standardised gear in a standardised manner; and
    2. To sample additional experimental stations in adjacent areas to identify areas of high subadult abundance which could be included as strata in future annual surveys.