Download FAR 2014/02 Trawl survey of hoki and middle depth species on the Chatham Rise, January 2013 (TAN1301)

The 22nd annual Chatham Rise trawl survey was carried out 2–26 January 2013. In total 123 stations were completed - 89 core (200–800 m) phase 1, 2 core phase 2 and 32 deep (800–1300 m). The estimates of relative core biomass were hoki 124 112 t (c.v. 15.3%), hake 1793 t (c.v. 15.3%) and ling 8714 t (c.v. 10.1%). Estimated biomass of orange roughy in core and northern deep strata was 2 776 t (c.v. 32.4%). Acoustic indices of mesopelagic fish were lower than in 2012.