This report describes the results of the blue cod (Parapercis colias) random-site potting survey carried out in Marlborough Sounds in October 2021. Estimates are provided for population abundance, size and age structure, sex ratio, total mortality (Z), and spawner biomass-per-recruit ratio. This is the third full random-site blue cod survey carried out in the Marlborough Sounds and the tenth survey overall, with nine fixed-site surveys carried out between 1995 and 2017.
FAR 2022/39 Relative abundance, size and age structure, and stock status of blue cod from the 2021 survey in Marlborough Sounds
Report - Fisheries Assessment Report (FAR)