FAR 2017/19 Acoustic biomass estimates of southern blue whiting on the Bounty Platform in 2015.

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FAR-2017-19-Bounty-platform-SBW-acoustic-survey-2015.pdf

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FAR-2017-19-Bounty-platform-SBW-acoustic-survey-2015.pdf (2.7 MB)

Abstract
Acoustic data on spawning southern blue whiting were collected along 38 transects in 4 snapshots south of the Bounty Islands from FV Tomi Maru 87 between 21 and 26 August 2015. The biomass estimate for 2015, based on the average of snapshots 2 and 4, was 6726 t (CV 42%). This was 43% lower than the estimate from 2014 (11 832 t), and the lowest in the industry acoustic time-series. This fishery is still dominated by the 2002 and 2007 year-classes, but a mode of young fish was also present.

Document date
Friday, 31 March 2017

Document type
V 1.3

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Adobe PDF

File size
2.7 MB

Reference number
2017/19

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FAR-2017-19-Bounty-platform-SBW-acoustic-survey-2015.pdf

Uploaded date
Friday, 31 March 2017

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FAR: 2017/19;
ISSN: 1179-5352;
ISBN: 978-1-77665-541-0;
ScienceStock: Deepwater; Deepwater;
Species: Southern Blue Whiting; Southern Blue Whiting;
FishingMethod: Acoustic biomass; Acoustic biomass;
ResearchField: ; Acoustic biomass; Southern Blue Whiting; spawning; ; Acoustic biomass; Southern Blue Whiting; spawning;
Author: Dunford; O’Driscoll; Dunford; O’Driscoll;

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