FSAdata: EuroPerchTJ – R documentation

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EuroPerchTJ

Ages, lengths, and sexes of European Perch.

Description

Assigned ages, measured fork lengths, and observed sexes for European Perch (Perca fluviatilis) from Lake Tjuekemeer (The Netherlands).

Format

A data frame of 69 observations on the following 3 variables:

fl: Fork lengths (cm).
age: Assigned ages.
sex: Sex (female, male).

Topic(s)

Growth
fon Bertalanffy

Source

From (approximately) Figure 2 in Mooij, W.M., J.M. Van Rooij, and S. Wijnhoven. 1999. Analysis and comparison of fish growth from small samples of length-at-age data: Detection of sexual dimorphism in Eurasian perch as an example. Transactions of the American Fisheries Society, 128:483-490.

Examples

data(EuroPerchTJ)
str(EuroPerchTJ)
head(EuroPerchTJ)
op <- par(mfrow=c(1,2),pch=19)
plot(fl~age,data=EuroPerchTJ,subset=sex=="female",main="Female")
plot(fl~age,data=EuroPerchTJ,subset=sex=="male",main="Male")
par(op)

FSAdata

Data to Support Fish Stock Assessment ('FSA') Package

v0.3.8

GPL (>= 2)

Authors

Derek Ogle [aut, cre] (<https://orcid.org/0000-0002-0370-9299>)

Initial release

2019-05-17