Updated GLMM standardised trotline CPUE series for the toothfish resource in the Prince Edward Islands EEZ to include data for the 2018 season

An updated GLMM standardisation of trotline toothfish CPUE data is presented which includes new data for the 2018 “fishing”-year. After a marked decrease in CPUE from 2015 to 2017, there has been a notable increase in the 2018 index, which is close to the larger estimated values for the first four y...

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Bibliographic Details
Main Authors: Brandão, Anabela, Butterworth, Doug S
Format: Report
Language:English
Published: Faculty of Science 2019
Subjects:
Online Access:http://hdl.handle.net/11427/30764
https://open.uct.ac.za/bitstream/11427/30764/1/FISHERIES_2019_OCT_SWG-DEM_24%20Toothfish%20CPUE.pdf
Description
Summary:An updated GLMM standardisation of trotline toothfish CPUE data is presented which includes new data for the 2018 “fishing”-year. After a marked decrease in CPUE from 2015 to 2017, there has been a notable increase in the 2018 index, which is close to the larger estimated values for the first four years (2010-2013) of the series.