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

Source: R/WalleyeKS.R
WalleyeKS.Rd

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

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. CSV file

Note

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

Topic(s)

  • Mortality

  • Catch curve

Examples

data(WalleyeKS)
str(WalleyeKS)
#> 'data.frame':	66 obs. of  3 variables:
#>  $ reservoir: Factor w/ 8 levels "Cedar.Bluff",..: 1 1 1 1 1 1 1 1 2 2 ...
#>  $ age      : int  0 1 2 3 4 5 6 7 0 1 ...
#>  $ catch    : int  78 70 104 52 33 13 4 2 131 28 ...
head(WalleyeKS)
#>     reservoir age catch
#> 1 Cedar.Bluff   0    78
#> 2 Cedar.Bluff   1    70
#> 3 Cedar.Bluff   2   104
#> 4 Cedar.Bluff   3    52
#> 5 Cedar.Bluff   4    33
#> 6 Cedar.Bluff   5    13
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)