Meta-analysis of population dynamics data: Hierarchical modelling to reduce uncertainty - ARCHIVED

Surveys and statistical programs – Documentation: 11-522-X19990015694


We use data on 14 populations of coho salmon to estimate critical parameters that are vital for management of fish populations. Parameter estimates from individual data sets are inefficient and can be highly biased, and we investigate methods to overcome these problems. Combination of data sets using nonlinear mixed effects models provides more useful results, however questions of influence and robustness are raised. For comparison, robust estimates are obtained. Model-robustness is also explored using a family of alternative functional forms. Our results allow ready calculation of the limits of exploitation and may help to prevent extinction of fish stocks. Similar methods can be applied in other contexts where parameter estimation is part of a larger decision-making process.

Issue Number: 1999001
Author(s): Barrowman, Nicholas J.; Myers, Ransom A.
FormatRelease dateMore information
CD-ROMMarch 2, 2000