CrappieARMS {FSAdata}R Documentation

Stock and recruitment data for Crappies from four reservoirs in Arkansas and Mississippi, USA.

Description

Stock and recruitment data for Crappies from four reservoirs in Arkansas and Mississippi, USA.

Format

A data frame of 78 observations on the following 3 variables:

reservoir

Reservoir (Atkins, Nimrod, Okatibbee, Ross.Barnett)

stock

Number of age-1+ fish per hectare

recruits

Number of age-0 fish per hectare

Topic(s)

Source

From (approximately) Figure 2 of Allen, M.S. and L.E. Miranda. 1998. An age-structured model for erratic crappie fisheries. Ecological Modeling 107:289-303.

Examples

data(CrappieARMS)
str(CrappieARMS)
head(CrappieARMS)
op <- par(mfrow=c(2,2),mar=c(3,3,2,1),mgp=c(1.75,0.5,0),tcl=-0.2,pch=19)
plot(recruits~stock,data=CrappieARMS,subset=(reservoir=="Atkins"),main="Atkins")
plot(recruits~stock,data=CrappieARMS,subset=(reservoir=="Nimrod"),main="Nimrod")
plot(recruits~stock,data=CrappieARMS,subset=(reservoir=="Okatibbee"),main="Okatibbee")
plot(recruits~stock,data=CrappieARMS,subset=(reservoir=="Ross.Barnett"),main="Ross Barnett")
par(op)


[Package FSAdata version 0.3.7 Index]