FSAdata (version 0.4.1)

WalleyeMN06a: Catch-at-age for Walleye.

Description

Catch-at-age for Walleye (Sander vitreus) collected from four lakes in Northern Minnesota, USA.

Format

A data frame with 52 observations on the following 3 variables.

lake

A factor vector of collection lake (Crooked, Fourmile, Island, Tom)

age

A numeric vector of assigned ages (from dorsal spines)

number

A numeric vector of number of fish

Topic(s)

• Mortality

• Catch curve

Examples

data(WalleyeMN06a)
str(WalleyeMN06a)
head(WalleyeMN06a)
op <- par(mfrow=c(2,2),pch=19)
plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Crooked")
plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Fourmile")
plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Island")
plot(log(number)~age,data=WalleyeMN06a,subset=lake=="Tom")
par(op)