Download FAR 2021/33 Trawl survey of hoki and middle depth species on the Chatham Rise, January 2020 (TAN2001)

The 26th trawl survey in a time series to estimate the relative biomass of hoki and other species on the Chatham Rise was carried out from 4 January to 3 February 2020. Estimated biomass of hoki in core (200–800 m) strata was 89 557 t (CV 14.4%), a decrease of 27% from 2018. This decrease was largely driven by a low biomass estimate for 2+ (2017 year-class) hoki. The biomass of 1+ hoki (2018 year-class) was relatively high while the biomass of hoki ages 3+ years and older increased by 26%.