Catch size composition of splendid alfonsino in the Emperor Seamounts area before and after the implementation of the mesh size regulation

    NPFC implemented the new regulation for the mesh size of trawl nets in 2019, in order to conserve small individuals of splendid alfonsino Beryx splendens. To evaluate the effectiveness of this measure, we visually compared catch size composition of splendid alfonsino before (2018) and after (2019) the implementation. The direction and extent of yearly changes differed among vessels and seasons, indicating the need of further examination on the determinants of catch size composition in this fishery.

    Document Number
    NPFC-2020-SSC BFME01-WP05 (Rev. 1)
    Document Version
    1
    Agenda Item
    Review of Members’ research activities on SA
    Authors
    Kota Sawada and Taro Ichii
    JAPAN