FAR 2014/08 Attempted validation of the first annual growth zone in kingfish

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FAR_2014_08_Attempted validation of the first annual growth zone in kingfish.pdf

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FAR_2014_08_Attempted validation of the first annual growth zone in kingfish.pdf (3.1 MB)

Abstract
We attempted to define the location of the first annual growth zone in kingfish otoliths in order to accurately age kingfish. Length data and otolith increment counts from juvenile kingfish sampled from the wild, and from known-age, hatchery-reared kingfish, were analysed. Results were inconclusive but we suggest that kingfish ageing studies assume that the first growth zone is formed during autumn–winter of the second year, at an age of approximately 18 months.

Document date
Monday, 10 February 2014

Document type
V 1.3

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Adobe PDF

File size
3.1 MB

Reference number
2014/08

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FAR_2014_08_Attempted validation of the first annual growth zone in kingfish.pdf

Uploaded date
Monday, 10 February 2014

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FAR: 2014/08;
ISSN: 1179-5352;
ISBN: 978-0-478-42357-0;
Species: Kingfish;
Stock: KIN;
Author: Francis; McKenzie; Ó Maolagáin, C.;

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