GLMM standardised trotline CPUE series for the toothfish resource in the Prince Edward Islands EEZ updated to include data up to the 2022 season

• Main Authors: Anabela Brandao, Doug Butterworth
• Format: Report
• Language: unknown
• Published: 2023
• Subjects: Biological mathematics; Applied statistics; Biostatistics; MARAM; Patagonian toothfish; Dissostichus eleginoides; Prince Edward Islands EEZ; standardised CPUE; catch per unit effort (CPUE); trotline; general linear mixed models; Patagonian Toothfish; Prince Edward Islands
• Online Access: https://doi.org/10.25375/uct.24543715.v1; https://figshare.com/articles/report/GLMM_standardised_trotline_CPUE_series_for_the_toothfish_resource_in_the_Prince_Edward_Islands_EEZ_updated_to_include_data_up_to_the_2022_season/24543715

An updated GLMM standardisation of trotline toothfish CPUE data is presented which includes new data for the 2022 “fishing-year”. Vessels with trotline gear stopped operating in the fishery from May 2022. Thus only partial CPUE data are available for the 2022 “fishing-year”. After a marked decrease in CPUE from 2015 to 2017, there has been a notable increase in the CPUE indices apart from a decline in the 2020 index. The 2021 index is the highest since 2012 and is close to the larger values estimated for the first three years (2010-2012) of the series. The 2022 index is down compared to the 2021 index, but still higher than the 2020 index.