Fisheries Infosite

FAR 2021/33 Trawl survey of hoki and middle depth species on the Chatham Rise, January 2020 (TAN2001)

Filename
FAR-2021-33-Chatham-Rise-Trawl-Survey-January-2020-4142.pdf

Link to file
FAR-2021-33-Chatham-Rise-Trawl-Survey-January-2020-4142.pdf (21.0 MB)

Abstract
 The 26th trawl survey in a time series to estimate the relative biomass of hoki and other species on the Chatham Rise was carried out from 4 January to 3 February 2020. Estimated biomass of hoki in core (200–800 m) strata was 89 557 t (CV 14.4%), a decrease of 27% from 2018. This decrease was largely driven by a low biomass estimate for 2+ (2017 year-class) hoki. The biomass of 1+ hoki (2018 year-class) was relatively high while the biomass of hoki ages 3+ years and older increased by 26%.

Document date
Friday, 2 July 2021
Document type
V 1.3
File format
Adobe PDF
File size
21.0 MB
Reference number
2021/33
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Uploaded from
FAR-2021-33-Chatham-Rise-Trawl-Survey-January-2020-4142.pdf

Uploaded date
Friday, 2 July 2021

Search tags
FAR: 2021/33;
ISBN: 978-1-99-100932-6;
ISSN: 1179-5352;
AUTHOR: Stevens, D.W.; O’Driscoll, R.L.; Ballara, S.L.; Schimel, A.C.G.;

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