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    Revised research plan for the exploratory longline fishery for Dissostichus spp. in Division 58.4.2 in 2014/15

    Request Meeting Document
    Document Number:
    WG-FSA-14/39
    Author(s):
    Delegation of the Republic of Korea
    Submitted By:
    Mr Doug Cooper (CCAMLR Secretariat)
    Agenda Item(s)
    Abstract

    Most things related to Dissostichus spp. in the eastern side of Antarctic has not been known well as namely the area is data poor areas. In the Division 58.4.1 there are two stocks; one extends from the SSRU 58.4.1C to the SSRU 58.4.2A, and the other one to the SSRU 58.4.1H. The population sizes were vulnerable with a big range of about 100-1,500 t per SSRU in 58.4.2. During the 2004-2014 fishing seasons in Division 58.4.2, 1,618 Dissostichus spp. were tagged and released, but any tagged fish have not been recaptured. Therefore, there were not enough data to estimate stock biomass for considering the precautionary catch limit. The catch limits agreed during the meetings in 2013 increased to get more recapture. The food-web of Dissostichus spp. has started to be studied in the southern Ross Sea and 58.4.1C. Some studies on biology of the fish have been evaluated, but those are not enough to assess the stocks and consider proper management measures. Based on CCAMLR’s fishery report, the eastern area is still data-poor area showing low recapture rate. Consequently, providing catch and effort data from the area, analysing biological samples, and collecting recapture data focusing on SSRUs in Division 58.4.2 is very important.

    Therefore, Korea notifies the participation in exploratory fishery for Dissostichus spp. in the SSRUs in Division 58.4.2 from 2014/2015 season to 2018/2019 using Korean commercial bottom longline vessel, KINGSTAR belonged to Sunwoo Company in accordance with paragraph of CM 24-01 and paragraph 6 (iii) of CM 21-02 to collect the catch and effort, CTD, tagged and released, recaptured data including archival tag, biological data for estimating biomass for Dissostichus spp. using CASAL and evaluating migration and distribution pattern by developmental maturity and size stages.