Document Type

Article

Publication Version

Version of Record

Publication Date

2016

Keywords

Age estimation, otolith, smallmouth bass, walley

Abstract

We designed and tested a novel otolith viewing apparatus termed the otolith illumination device (OID) to ascertain if its use would result in a reduction of interpretation error as determined by increased precision of age estimates obtained from otoliths of walleye Sander vitreus and smallmouth bass Micropterus dolomieu. Clarity of annuli on otolith sections viewed with the OID was generally greater than clarity of annuli on sections viewed with an alternative method. OID-based age estimates were equally as, and in some instance more precise than ages estimated using the alternative method. Additionally, no systematic differences in coefficients of variation across ages were detected between the OID and alternative methods of fish age estimation. Results suggest that the OID may be useful for inexperienced readers and is a viable option for reducing interpretation error, which may improve reader efficiency and accuracy and precision in estimating fish ages.

Publication Title

The Open Fish Science Journal

Volume

9

First Page

1

Last Page

7

Format

application/pdf

Language

en

DOI of Published Version

10.2174/1874401X01609010001

Publisher

Bentham Open

Rights

Copyright © the Author(s)

Creative Commons License

Creative Commons Attribution 4.0 License
This work is licensed under a Creative Commons Attribution 4.0 License.

Comments

This work was published in The Open Fish Journal (2016) 9. doi: 10.2174/1874401X01609010001

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