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Stock and recruitment data for Klamath River Chinook Salmon, 1979-2000.

Source: R/ChinookKR.R
ChinookKR.Rd

Stock and recruitment data for Klamath River Chinook Salmon (Oncorhynchus tshawytscha), 1979-2000 brood years.

Format

A data frame with 27 observations on the following 3 variables.

brood.year

a numeric vector of brood years

spawners

a numeric vector giving number of spawning fish

recruits

a numeric vector containing the number of recruits

Source

From Pacific Fishery Management Council 2006 report. CSV file

Topic(s)

  • Stock-Recruit

  • Recruitment

Examples

data(ChinookKR)
str(ChinookKR)
#> 'data.frame':	27 obs. of  3 variables:
#>  $ brood.year: int  1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 ...
#>  $ spawners  : int  30637 21484 33857 31951 30784 16064 25676 113359 101717 79385 ...
#>  $ recruits  : int  200698 109430 50968 122187 368159 244052 188722 123247 72981 17450 ...
head(ChinookKR)
#>   brood.year spawners recruits
#> 1       1979    30637   200698
#> 2       1980    21484   109430
#> 3       1981    33857    50968
#> 4       1982    31951   122187
#> 5       1983    30784   368159
#> 6       1984    16064   244052
op <- par(mfrow=c(1,2),pch=19)
plot(recruits~brood.year,data=ChinookKR,type="l")
plot(recruits~spawners,data=ChinookKR)

par(op)