Statistical analysis on otolith data of anadromous fishes Public Deposited

http://ir.library.oregonstate.edu/concern/defaults/g732d949x

To the best of our knowledge, one or more authors of this paper were federal employees when contributing to this work. This is the publisher’s final pdf. The published article is copyrighted by Springer and can be found at:  http://www.springer.com/?SGWID=0-102-0-0-0.

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Stable oxygen and carbon isotope δ[superscript 18]O and δ[superscript 13]C analyses of otoliths are becoming increasingly common in fisheries science and management. However, little is known about the statistical properties of isotopic data and few attempts have been made to explore appropriate statistical methods that could be used for otolith data analysis. In this paper, we present a pilot study on δ[superscript 18]O and δ[superscript 13]C data from otoliths of two anadromous fish species, Atlantic salmon (Salmo salar) and Pacific sockeye salmon (Oncorhynchus nerka). The results indicated that the salmon otolith data were not normally distributed, so that linear discriminant function analysis and commonly-used statistical tests such as ANOVA and the t-test may not be appropriate. Using non-parametric k-sample nearest neighbor discriminant analysis, we were able to discriminate with high accuracy among five hatcheries for Atlantic salmon and the origins of wild and hatchery sockeye salmon. Analyses also indicated that the sample sizes required to estimate δ[superscript 18]O and δ[superscript 13]C means based on the different sources of variability (between group or within group) and precision levels (≤ ± 5.0 %) were not large. These results and conclusions not only address the statistical considerations of isotopic data from otoliths, but also have practical importance for fisheries management as well.
Resource Type
DOI
Date Available
Date Issued
Citation
  • Gao, Y., Conrad, R., Bean, D., & Noakes, D. L. G. (2013). Statistical analysis on otolith data of anadromous fishes. Environmental Biology of Fishes, 96(7), 799-810. doi:10.1007/s10641-012-0072-8
Academic Affiliation
Series
Keyword
Rights Statement
Publisher
Peer Reviewed
Language
Replaces
Additional Information
  • description.provenance : Submitted by Deborah Campbell (deborah.campbell@oregonstate.edu) on 2013-07-08T14:47:45Z No. of bitstreams: 1 NoakesDavidLGFisheriesWildlifeStatisticalAnalysisOtolith.pdf: 641713 bytes, checksum: b567a1cd5f35b1a0b21c24843cce707d (MD5)
  • description.provenance : Approved for entry into archive by Deborah Campbell(deborah.campbell@oregonstate.edu) on 2013-07-08T16:08:01Z (GMT) No. of bitstreams: 1 NoakesDavidLGFisheriesWildlifeStatisticalAnalysisOtolith.pdf: 641713 bytes, checksum: b567a1cd5f35b1a0b21c24843cce707d (MD5)
  • description.provenance : Made available in DSpace on 2013-07-08T16:08:01Z (GMT). No. of bitstreams: 1 NoakesDavidLGFisheriesWildlifeStatisticalAnalysisOtolith.pdf: 641713 bytes, checksum: b567a1cd5f35b1a0b21c24843cce707d (MD5) Previous issue date: 2012-08-04

Relationships

Parents:

This work has no parents.

Last modified

Downloadable Content

Download PDF

Items