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)

• Stock-Recruit
• Recruitment

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)