Combined analysis of length and age-at-length data

I. Martin; R. M. Cook

doi:10.1093/icesjms/46.2.178

Combined analysis of length and age-at-length data

I. Martin, R. M. Cook

Research output: Contribution to journal › Article › peer-review

7 Citations (Scopus)

Abstract

Age—length-key and length-frequency analysis are well-known methods for estimating the proportion of fish at each age in a sample and the associated mean length and standard deviation of length at age. In this paper a combined age—length analysis (CALA) is described which fits a statistical model to both the age and length data. Monte Carlo testing of the methods indicates that the CALA method provides more precise estimates of the parameters than conventional age-length-key methods.

Original language	English
Pages (from-to)	178-186
Number of pages	9
Journal	Journal du Conseil - Conseil International pour l'Exploration de la Mer
Volume	46
Issue number	2
DOIs	https://doi.org/10.1093/icesjms/46.2.178
Publication status	Published - 1 Dec 1990

Keywords

age—length-key
length-frequency analysis
statistical model
monte carlo method

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10.1093/icesjms/46.2.178

Cite this

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abstract = "Age—length-key and length-frequency analysis are well-known methods for estimating the proportion of fish at each age in a sample and the associated mean length and standard deviation of length at age. In this paper a combined age—length analysis (CALA) is described which fits a statistical model to both the age and length data. Monte Carlo testing of the methods indicates that the CALA method provides more precise estimates of the parameters than conventional age-length-key methods.",

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AU - Cook, R. M.

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AB - Age—length-key and length-frequency analysis are well-known methods for estimating the proportion of fish at each age in a sample and the associated mean length and standard deviation of length at age. In this paper a combined age—length analysis (CALA) is described which fits a statistical model to both the age and length data. Monte Carlo testing of the methods indicates that the CALA method provides more precise estimates of the parameters than conventional age-length-key methods.

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KW - length-frequency analysis

KW - statistical model

KW - monte carlo method

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JO - Journal du Conseil - Conseil International pour l'Exploration de la Mer

JF - Journal du Conseil - Conseil International pour l'Exploration de la Mer

IS - 2

ER -

Combined analysis of length and age-at-length data

Abstract

Keywords

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