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

Source: R/SardinesPacific.R
SardinesPacific.Rd

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

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. CSV file

Topic(s)

  • Stock-Recruit

  • Recruitment

Examples

data(SardinesPacific)
str(SardinesPacific)
#> 'data.frame':	34 obs. of  3 variables:
#>  $ year    : int  1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 ...
#>  $ ssb     : int  3526 3417 3628 2847 1689 1207 1202 1609 1761 2459 ...
#>  $ recruits: int  4098 2821 5383 6940 6763 11808 14442 6152 3268 3720 ...
head(SardinesPacific)
#>   year  ssb recruits
#> 1 1935 3526     4098
#> 2 1936 3417     2821
#> 3 1937 3628     5383
#> 4 1938 2847     6940
#> 5 1939 1689     6763
#> 6 1940 1207    11808
op <- par(mfrow=c(1,2),pch=19)
plot(recruits~year,data=SardinesPacific,type="l")
plot(recruits~ssb,data=SardinesPacific)

par(op)