Fisheries Infosite

FAR 2018/13 - A comparison of a trawl survey index with CPUE series for hake (Merluccius australis) off the west coast of South Island (HAK 7).


Link to file
FAR-2018-13-Comparison-Trawl-CPUE-Indices-HAK7.pdf (7.9 MB)

A series of CPUE indices were compared with the available research trawl survey indices. Even when removing midwater trawl data, or using only data from the trawl survey area, or analysing separate fleets with consistent fishing gear and practice, the resulting CPUE trajectories were similar to that produced previously for the entire fishery. None of the series matched the research trawl survey indices. It is unlikely that any current WCSI hake CPUE series is a reliable index of fish abundance.

Document date
Thursday, 14 June 2018
Document type
V 1.3
File format
Adobe PDF
File size
7.9 MB
Reference number
Sort order

Uploaded from

Uploaded date
Thursday, 14 June 2018

Search tags
Species: HAK;
Stock: HAK 7;
Author: Horn P.; Ballara S.;

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.