FSAdata (version 0.3.0)

LakeTroutMI: Stock and recruitment data for Lake Trout in Lake Superior.

Description

Stock and recruitment data for the 1971-1991 year-classes of Lake Trout (Salvelinus namaycush) in Michigan waters of Lake Superior.

source

Extracted (approximately) from figures in Richards, J.M., M.J. Hansen, C.R. Bronte, and S.P. Sitar. 2004. Recruitment dynamics of the 1971-1991 year-classes of Lake Trout in Michigan waters of Lake Superior. North American Journal of Fisheries Management. 24:475-489.

Topic(s)

• Stock-recruit

concept

'Stock-Recruit'

Examples

data(LakeTroutMI)
LakeTroutMI$stock <- LakeTroutMI$wild+LakeTroutMI$stocked
str(LakeTroutMI)
head(LakeTroutMI)
op <- par(mfrow=c(3,2),pch=19)
plot(recruits~year,data=LakeTroutMI,subset=area=="MI3",type="l",ylim=c(0,max(recruits,na.rm=TRUE)))
lines(recruits~year,data=LakeTroutMI,subset=area=="MI4",col="blue")
lines(recruits~year,data=LakeTroutMI,subset=area=="MI5",col="green")
lines(recruits~year,data=LakeTroutMI,subset=area=="MI6",col="red")
lines(recruits~year,data=LakeTroutMI,subset=area=="MI7",col="yellow")
plot(recruits~stock,data=LakeTroutMI,subset=area=="MI3",main="MI3")
plot(recruits~stock,data=LakeTroutMI,subset=area=="MI4",col="blue",main="MI4")
plot(recruits~stock,data=LakeTroutMI,subset=area=="MI5",col="green",main="MI5")
plot(recruits~stock,data=LakeTroutMI,subset=area=="MI6",col="red",main="MI6")
plot(recruits~stock,data=LakeTroutMI,subset=area=="MI7",col="yellow",main="MI7")
par(op)