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Stock and recruitment data for Exmouth Gulf Tiger Prawn, 1970-83.

Source: R/TPrawnsEG.R
TPrawnsEG.Rd

Stock and recruitment data for Exmouth Gulf Tiger Prawn (Panaeus esculentus), 1970-1983.

Format

A data frame with 14 observations on the following 5 variables.

year

a numeric vector of years

stock

a numeric vector giving the index of spawning stock fish

recruits

a numeric vector containing the index of recruits

cycloneJan

a numeric vector containing the relative rainfal in January as an index of cyclonic activity

cycloneFeb

a numeric vector containing the relative rainfal in February as an index of cyclonic activity

Source

From table 9.1 in Haddon, M. 2000. Modeling and Quantitative Methods in Fisheries, CRC Press. Originally from Penn, J. W., and Caputi, N. 1986. Spawning stock-recruitment relationships and environmental influences on the Tiger Prawn (Penaeus esculentus) fishery in Exmouth Gulf, Western Australia. Australian Journal of Marine and Freshwater Research 37:491-505. CSV file

Topic(s)

  • Stock-Recruit

  • Recruitment

Examples

data(TPrawnsEG)
str(TPrawnsEG)
#> 'data.frame':	14 obs. of  5 variables:
#>  $ year      : int  1982 1981 1983 1971 1980 1979 1974 1973 1976 1977 ...
#>  $ stock     : num  2.4 3.2 3.9 5.7 6 7.4 8.2 10 10.1 10.4 ...
#>  $ recruits  : num  11.6 7.1 14.3 19.1 12.4 19.7 37.5 18.5 22.1 26.9 ...
#>  $ cycloneJan: int  0 85 0 0 18 14 0 102 2 4 ...
#>  $ cycloneFeb: int  0 28 54 1 19 41 213 22 1 10 ...
head(TPrawnsEG)
#>   year stock recruits cycloneJan cycloneFeb
#> 1 1982   2.4     11.6          0          0
#> 2 1981   3.2      7.1         85         28
#> 3 1983   3.9     14.3          0         54
#> 4 1971   5.7     19.1          0          1
#> 5 1980   6.0     12.4         18         19
#> 6 1979   7.4     19.7         14         41
op <- par(mfrow=c(1,2),pch=19)
plot(recruits~year,data=TPrawnsEG,type="l")
plot(recruits~stock,data=TPrawnsEG)

par(op)