Progress report on the joint research for Dissostichus spp. in area 88.3 by Republic of Korea and Ukraine in 2024

The scientific research fishing was conducted by the vessels “Greenstar” (KOR) and “Marigolds” (UKR) in CCAMLR Subarea 88.3 following the survey design (WG-FSA-2022/26). The total catch of Dissostichus mawsoni was 73020.7 kg comprising 3747 individuals. The CPUE for D. mawsoni varied among the research blocks; CPUE demonstrated high variability in research blocks 88.3_1, 88.3_3 and 88.3_4 with the mean range of 66.1 – 245.2 kg/1000 hooks. This season in research blocks 883_6 was obtained mean CPUE 90.3 kg/1000 hooks and in block 883_5 very low CPUE 1,5 kg/1000 hooks which is usual for this area. The vessel calibration study was completed in research block 88.3_3, planned number of stations was set. The tagging rate and tag overlap in Subarea 88.3 were 5.91 fish per ton and 91,18 % overlap for Greenstar, and 5.7 fish and 85.1% for Marigolds.