M. A. MacNeil and S. Campana

Department of Biology, Dalhousie University
Halifax, Nova Scotia, Canada B3H 3J5

Source - Journal of Northwest Atlantic Fishery Science, Volume 30: 77-82
ISSN-0250-6408

MacNeil, M. A. and Campana, S. 2002. Comparison of Whole Sectioned Vertebrae for Determining the Age of Young Blue Shark (Prionace glauca). J. Northw. Atl. Fish. Sci. 30: 77-82. https://doi.org/10.2960/J.v30.a5

Abstract 

Age determinations using whole and sectioned vertebrae from 185 blue shark (Prionace glauca) showed no systematic between-method difference in ages to a minimum age of 8 years. The precision measure, coefficient of variation, was good for both methods (CV <8%). While age validation is still required, digitally-enhanced images of whole vertebrae appear to be a rapid and cost effective means of age determination for blue shark below 300 cm (fork length) or approximately age 8.

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Language - English
Publisher - Northwest Atlantic Fisheries Organization (NAFO), Dartmouth, N.S., Canada
Publication Date - 2002
Publication Type - Journal Article

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