Fisheries Infosite

Can otolith chemistry predict the natal origins of grey mullet (Mugil cephalus)?


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FAR-2016-15-GMU-otolith-chemistry.pdf (2.1 MB)

To assess whether adult grey mullet could be assigned back to natal nurseries using otolith chemistry, juveniles from the 2010 year class were sampled from 76 nursery areas (estuarine areas) in northern New Zealand (GMU 1), and 573 otoliths analysed. Quadratic Discrimination Analysis (QDA), was used to assign otoliths back to their regions of capture. Overall it was concluded that the discrimination power between these regions was insufficient to allow for large scale stock discrimination.

Document date
Wednesday, 30 March 2016
Document type
V 1.3
File format
Adobe PDF
File size
2.1 MB
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Uploaded date
Wednesday, 30 March 2016

Search tags
Author: Gillanders, B.M.; McKenzie, J.R.; Morrison, M.A.; Tuck, I.;
FishingMethod: Beach seine tows, Throw nets, Large dip nets;
ResearchField: Otolith chemistry, QDA,;
ScienceStock: Inshore;
Species: Mugil cephalus, Grey mullet;
Stock: GMU 1;

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