FSAdata (version 0.4.1)

PikeWindermere: Stock and recruitment data for Northern Pike from Lake Windermere, 1944-1981.

Description

Stock and recruitment data for Northern Pike (Esox lucius) from Lake Windermere, 1944-1981.

Format

A data frame of 75 observations on the following two variables:

year

Year

stock

Female biomass (kg)

recruits

Number at age-2

basin

Basin of Windermere (North or South)

tdd14

Temperature degree-days over 14C

Topic(s)

• Stock-Recruit

• Recruitment

Examples

data(PikeWindermere)
str(PikeWindermere)
head(PikeWindermere)
op <- par(mfrow=c(2,2),pch=19)
plot(recruits~year,data=PikeWindermere,subset=basin=="North",main="North")
plot(recruits~stock,data=PikeWindermere,subset=basin=="North",main="North")
plot(recruits~year,data=PikeWindermere,subset=basin=="South",main="South")
plot(recruits~stock,data=PikeWindermere,subset=basin=="South",main="South")
par(op)