Download FAR 2013/34 Trawl survey of hoki and middle depth species on the Chatham Rise, January 2012 (TAN 1201)

The twenty-first trawl survey in a time series to estimate the relative biomass of hoki and other middle depth species on the Chatham Rise was carried out from 2 to 28 January 2012. A random stratified sampling design was used, and 134 bottom trawl stations were successfully completed comprising 90 core (200–800 m) phase one biomass stations, 10 core phase two stations, and 34 deep (800–1300 m) stations.