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Recruitment time-series for Yellow Perch in Green Bay, 1978-1992.

Source: R/YPerchGB.R
YPerchGB.Rd

Yellow Perch (Perca flavescens) recruitment time-series for Green Bay, 1978-1992.

Format

A data frame with 15 observations on the following 2 variables:

year

Year of data.

recruits

Number of recruits (thousands per hour).

Source

From Walters, C., and A. Punt. 1994. Placing odds on sustainable catch virtual population analysis and survey data. Canadian Journal of Fisheries and Aquatic Sciences, 51:946-958. Obtained from Ransom Myers old online database. CSV file

Topic(s)

  • Recruitment time-series

Examples

data(YPerchGB)
str(YPerchGB)
#> 'data.frame':	15 obs. of  2 variables:
#>  $ year    : int  1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 ...
#>  $ recruits: num  0.639 0.862 1.112 0.197 5.737 ...
head(YPerchGB)
#>   year recruits
#> 1 1978    0.639
#> 2 1979    0.862
#> 3 1980    1.112
#> 4 1981    0.197
#> 5 1982    5.737
#> 6 1983    0.196
plot(recruits~year,data=YPerchGB)