Correction to the Beverton and Holt Z-estimator for truncated catch length-frequency distributions

J.S. Ault and N.M. Ehrhardt

Fishbyte, 1991, vol. 9, issue 1, 37-39

Abstract: A method for estimating the instantaneous mortality rate (Z) is presented which was developed from a truncated equation for average length. The model has zero bias at equilibrium, but has no explicit solution for Z so that its solution requires a numerical method.

Keywords: Mortality; Growth; Stock assessment; Methodology; Mathematical models (search for similar items in EconPapers)
JEL-codes: Q00 (search for similar items in EconPapers)
Date: 1991
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Persistent link: https://EconPapers.repec.org/RePEc:wfi:wfbyte:27733

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