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.
| Original language | English |
|---|---|
| Pages (from-to) | 77-82 |
| Number of pages | 6 |
| Journal | Journal of Northwest Atlantic Fishery Science |
| Volume | 22 |
| DOIs | |
| Publication status | Published - Dec 2002 |
ASJC Scopus Subject Areas
- Oceanography
- Ecology
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MacNeil, M. A., & Campana, S. E. (2002). Comparison of whole and sectioned vertebrae for determining the age of young blue shark (Prionace glauca). Journal of Northwest Atlantic Fishery Science, 22, 77-82. https://doi.org/10.2960/j.v30.a5