WalleyeEL {FSAdata} | R Documentation |
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
Source
Hansen, M. J., M. A. Bozek, J. R. Newby, S. P. Newman, and M. D. Staggs. 1998. Factors affecting recruitment of walleyes in Escanaba Lake, Wisconsin, 1958-1995. North American Journal of Fisheries Management 18:764-774. CSV file
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)
[Package FSAdata version 0.4.1 Index]