Fisheries Infosite

FAR 2017/07 evelopment of Southern Hemisphere porbeagle shark stock abundance indicators using Japanese commercial and survey data.

FAR-2017-07-porbeagle-indicators_corrected version.pdf

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FAR-2017-07-porbeagle-indicators_corrected version.pdf (1.9 MB)

Southern hemisphere porbeagle shark catch, effort, and biological data from Japanese fisheries were analysed to provide information for stock assessment, as part of a New Zealand – Japan collaboration. Methods were developed to explore logbook shark reporting reliability, which was found to increase sharply in 2008. Size was found to be strongly associated with sea surface temperature. Catch rate analyses provided indices for three areas from the eastern Atlantic to the western South Pacific.

Document date
Friday, 7 April 2017
Document type
V 1.3
File format
Adobe PDF
File size
1.9 MB
Reference number
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FAR-2017-07-porbeagle-indicators_corrected version.pdf

Uploaded date
Friday, 7 April 2017

Search tags
Author: Hoyle S.D.; Kai, M.; Okamoto, H.; Semba, Y.;
ResearchField: Japanese commercial and survey data; Porbeagle; Southern Hemisphere; stock abundance;
ScienceStock: Highly Migratory species;
Species: Porbeagle;

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