The 20th annual Chatham Rise trawl survey was carried out from 2 to 28 January 2011. 114 bottom trawl stations were successfully completed comprising 88 core (200–800 m) phase one biomass stations, 2 core phase two stations, 23 deep (800–1300 m) stations, and 1 deep phase two station. The estimate of relative core hoki biomass was 93 904 t (c.v. 14.0%), hake was 1 099 t (c.v. 14.9%), and ling was 7 027 t (c.v. 13.8%).