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Otolith collection ageing methods

These pages give summaries of ageing methods (surface, break and burn, or section) used to age fish otoliths. Result tables can be viewed showing the numbers read using each method, by year collected, by year read, or by individual collections. Results include specimens collected as far back as 1980 and are updated daily around midnight.

To get started select a species and whether you want to see results by year collected or by year read.

Choose search criteria to see details of ageing collections.

Species Name:

Year Collected Year Read

Year collected is the calendar year of when the specimens were taken.

Year read is the calendar year in which the fish ages were released from the Age and Growth lab and sent to the user.

Last updated: Aug 29, 2017 10:28 AM PDT

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