TY - BOOK AU - Holmes,S.J. AU - Hurst,R.J. AU - Hamill,Jason ED - Fisheries New Zealand (Government agency) TI - Estimation of fishing efficiency and catchability of key species on R.V. Kaharoa South Island trawl surveys / T2 - New Zealand fisheries assessment report, SN - 9781991019844 PY - 2021/// CY - Wellington, New Zealand PB - Fisheries New Zealand, Tini a Tangaroa KW - FISHERIES KW - NEW ZEALAND N1 - "November 2021."; FAR-2021-72-Kaharoa-Fishing-Efficiency-And-Catchability-For-South-Island-Trawl-Surveys-4211 N2 - Estimates of the fishing efficiency (Q) for 13 species for the R.V. Kaharoa South Island survey trawl gear were made by eliciting expert opinion. Estimates of areal availability taken from generalised additive model (GAM) analyses of the survey data were multiplied to the Q values to estimate overall catchability for seven key species. In five cases (elephant fish, red gurnard, snapper, stargazer, and tarakihi), catchability values were compared with estimates from integrated stock assessments UR - https://fs.fish.govt.nz/Page.aspx?pk=113&dk=24995 UR - https://docs.niwa.co.nz/library/public/FAR2021-72.pdf ER -