Pasar al contenido principal

    Proposed continuation of a multi-Member longline survey on Antarctic toothfish (Dissostichus mawsoni) in Statistical Subarea 48.6 in 2019/20 by Japan, South Africa and Spain

    Solicitar acceso a documento de reunión
    Número de documento:
    WG-SAM-2019/13 Rev. 1
    Autor(es):
    Delegations of Japan, South Africa and Spain
    Presentado por:
    Mr Roberto Sarralde Vizuete (España)
    Aprobado por:
    Mr Roberto Sarralde Vizuete (España)
    Punto(s) de la agenda
    Resumen

    A collaborative research program has been undertaken by Japan and South Africa since 2013 to enhance data collection and analysis in the subarea 48.6. From the last season (2018/19) Spain has joined the proposal in order to contribute to the data acquisition and to speed up the integrated assessments of the D.mawsoni stock in this subarea (FSA-18/34).

    The continuation of the three-member research proposal for 2019/20 season is presented to ensure continuity of previous research activities. Data and investigations about the population structure and various demographic parameters of Antarctic toothfish (Dissostichus mawsoni) using trotline (JPN and ZAF) and Spanish longline (ESP) gears, established tagging techniques, pop-up tags and genetic analysis will provide the basis for the development of spatial population models and assessments in support of management advice. An Integrated Stock Assessment (ISA) of this species is expected to be done by the end of the 2020/21 season.

    Additional outcomes of the research include documenting relative abundance of Antarctic and Patagonian toothfish, tagging toothfish for biomass estimation and for stock linkage studies, and collecting information on distribution, and life history of bycatch and Vulnerable Marine Ecosystems (VMEs).

    Principio de página

    © Copyright - Commission for the Conservation of Antarctic Marine Living Resources 2021, All rights reserved.

    Site by Eighty Options