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A Note on Determining Parameter Redundancy in Age-Dependent Tag Return Models for Estimating Fishing Mortality, Natural Mortality and Selectivity

  • Diana J. Cole
  • Byron J. T. MorganEmail author
Article

Abstract

Jiang et al. (JABES 12:177–194, 2007) present models for tag return data on fish. They examine whether the models are parameter redundant, but need to resort to numerical methods as symbolic methods were sometimes found to be intractable. Also, their results are only applicable for a specified number of years of tagging data and age-classes. Here we show how symbolic methods can in fact be used and also how conclusions apply to any number of years of tagging data and age-classes.

This article has supplementary material online.

Key Words

Derivative matrix Ecology Exhaustive summaries Identifiability Maple 

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Supplementary material

13253_2010_26_MOESM1_ESM.pdf (124 kb)
Web Appendix for the JABES paper, ‘A note on determining parameter redundancy in age-dependent tag return models for estimating fishing mortality, natural mortality and selectivity’ by Cole and Morgan (PDF 109 KB)

References

  1. Catchpole, E. A., and Morgan, B. J. T. (1997), “Detecting Parameter Redundancy,” Biometrika, 84, 187–196. MathSciNetCrossRefzbMATHGoogle Scholar
  2. Cole, D. J., and Morgan, B. J. T. (2009), “Determining the Parametric Structure of Non-linear Models.” University of Kent Technical Report, UKC/IMS/09/005. Google Scholar
  3. Jiang, H., Pollock, K. H., Brownie, C., Hightower, J. E., Hoenig, J. M., and Hearn, W. S. (2007), “Age-Dependent Tag Return Models for Estimating Fishing Mortality, Natural Mortality and Selectivity,” JABES, 12, 177–194. MathSciNetCrossRefzbMATHGoogle Scholar

Copyright information

© International Biometric Society 2010

Authors and Affiliations

  1. 1.University of KentCanterburyUK

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