FSAdata (version 0.4.1)

WalleyeEL: Stock and recruitment data for Walleye from Escanaba Lake, WI, 1958-1992.

Description

Abundance of age-0 and age-5 and older Walleye (Sander vitreus), abundance of adult Yellow Perch (Perca flavescens), and coefficient of variation of May temperatures for Escanaba Lake, WI, 1958-1992.

Format

A data frame of 39 observations on the following 5 variables:

yrclass

Year-class of the data

age0

Abundance of age-0 Walleye (recruits)

age5

Abundance of age-5 and older Walleye (stock)

maycv

Coefficient of variation of May temperatures in birth year

yep

Abundance of adult (larger than 152.4 mm) Yellow Perch

Topic(s)

• Stock-Recruit

• Recruitment

Examples

data(WalleyeEL)
str(WalleyeEL)
head(WalleyeEL)
op <- par(mfrow=c(1,2),pch=19)
plot(age0~yrclass,data=WalleyeEL,type="l")
plot(age0~age5,data=WalleyeEL)
par(op)