Fisheries Infosite

FAR 2021/72 Estimation of fishing efficiency and catchability of key species on R.V. Kaharoa South Island trawl surveys

Filename
FAR-2021-72-Kaharoa-Fishing-Efficiency-And-Catchability-For-South-Island-Trawl-Surveys-4211.pdf

Link to file
FAR-2021-72-Kaharoa-Fishing-Efficiency-And-Catchability-For-South-Island-Trawl-Surveys-4211.pdf (2.9 MB)

Abstract
 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.

Document date
Tuesday, 23 November 2021
Document type
V 1.3
File format
Adobe PDF
File size
2.9 MB
Reference number

Sort order


Uploaded from
FAR-2021-72-Kaharoa-Fishing-Efficiency-And-Catchability-For-South-Island-Trawl-Surveys-4211.pdf

Uploaded date
Tuesday, 23 November 2021

Search tags
ISSN: 1179-5352;
ISBN: 978-1-99-101984-4;
FAR: 2021/72;
AUTHOR: Holmes, S.J.; Hurst, R.J.; Hamill, J.;

If you are having problems opening this file, you may not have the software on your computer needed to view it. Click the link below to download and install a suitable program.