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fishgrowth  

Fit Growth Curves to Fish Data
View on CRAN: Click here


Download and install fishgrowth package within the R console
Install from CRAN:
install.packages("fishgrowth")

Install from Github:
library("remotes")
install_github("cran/fishgrowth")

Install by package version:
library("remotes")
install_version("fishgrowth", "1.0.4")



Attach the package and use:
library("fishgrowth")
Maintained by
Arni Magnusson
[Scholar Profile | Author Map]
All associated links for this package
First Published: 2025-02-18
Latest Update: 2025-04-08
Description:
Fit growth models to otoliths and/or tagging data, using the 'RTMB' package and maximum likelihood. The otoliths (or similar measurements of age) provide direct observed coordinates of age and length. The tagging data provide information about the observed length at release and length at recapture at a later time, where the age at release is unknown and estimated as a vector of parameters. The growth models provided by this package can be fitted to otoliths only, tagging data only, or a combination of the two. Growth variability can be modelled as constant or increasing with length.
How to cite:
Arni Magnusson (2025). fishgrowth: Fit Growth Curves to Fish Data. R package version 1.0.4, https://cran.r-project.org/web/packages/fishgrowth. Accessed 24 Oct. 2026.
Previous versions and publish date:
(2026-07-09 07:38), 1.0.1 (2025-02-18 12:20), 1.0.2 (2025-04-08 06:10), 1.0.3 (2025-10-01 09:20)
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Complete documentation for fishgrowth
Functions, R codes and Examples using the fishgrowth R package
Full fishgrowth package functions and examples
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