Catch-at-age for Walleye from eight Kansas reservoirs.

Description

Catch-at-age for Walleye (Sander vitreus) from eight Kansas reservoirs during 1991-1999.

Format

A data frame with 66 observations on the following 3 variables.

• reservoir: Reservoir (Cedar.Bluff, Cheney, Glen.Elder, Kirwin, Lovewell, Marion, Webster, Wilson)
• age: Age of fish at capture
• catch: Number of fish captured

Topic(s)

• Mortality
• Catch curve

Note

The authors used all age-2 and older Walleye to construct the catch curves.

Source

From Figure 2 of Quist, M.C., J.L. Stephen, C.S. Guy, and R.D. Schultz. 2004. Age structure and mortality of Walleyes in Kansas reservoirs: Use of mortality caps to establish realistic management objectives. North American Journal of Fisheries Management 24:990-1002.

Examples

data(WalleyeKS)
str(WalleyeKS)
head(WalleyeKS)
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(log(catch)~age,data=WalleyeKS,subset=(reservoir=="Cedar.Bluff"),main="Cedar Bluff")
plot(log(catch)~age,data=WalleyeKS,subset=(reservoir=="Cheney"),main="Cheney")
plot(log(catch)~age,data=WalleyeKS,subset=(reservoir=="Glen.Elder"),main="Glen Elder")
plot(log(catch)~age,data=WalleyeKS,subset=(reservoir=="Kirwin"),main="Kirwin")
plot(log(catch)~age,data=WalleyeKS,subset=(reservoir=="Lovewell"),main="Lovewell")
plot(log(catch)~age,data=WalleyeKS,subset=(reservoir=="Marion"),main="Marion")
plot(log(catch)~age,data=WalleyeKS,subset=(reservoir=="Webster"),main="Webster")
plot(log(catch)~age,data=WalleyeKS,subset=(reservoir=="Wilson"),main="Wilson")
par(op)