Stock and recruitment data for Pacific Sardines, 1935-1990.

Description

Pacific Sardine (Sardinops sagax) stock and recruitment by year, 1935-1990.

Format

A data frame of 34 observations on the following 3 variables:

• year: Year of data
• ssb: Spawning stock biomass – millions of fish
• recruits: Recruitment index – millions of fish

Topic(s)

• Stock-Recruit
• Recruitment

Source

From Jacobson, L.D. and A.D. MacCall. 1995. Stock-recruitment models for Pacific sardine (Sardinops sagax). Canadian Journal of Fisheries and Aquatic Sciences. 52:566-577.

Examples

data(SardinesPacific)
str(SardinesPacific)
head(SardinesPacific)
op <- par(mfrow=c(1,2),pch=19)
plot(recruits~year,data=SardinesPacific,type="l")
plot(recruits~ssb,data=SardinesPacific)
par(op)