Exploited Larval Fish

Age (age) and coefficient of variation (cv) in larval fish from exploited and unexploited species (exploited).

Usage

LarvalFish

Format

A data frame with 28 observations on the following 3 variables.

age

a numeric vector

cv

a numeric vector

exploited

a factor with levels no and yes

Source

Hsieh, C.H., C.S. Reiss, J.R. Hunter, J.R. Beddington, R.M. May, and G. Sugihara. 2006. Fishing elevates variability in the abundance of exploited species. Nature 443: 859-862.

Examples

str(LarvalFish)
#> 'data.frame':	28 obs. of  3 variables:
#>  $ age      : num  1 1 1 1 1.5 2 2 2 2 2 ...
#>  $ cv       : num  0.94 1.8 1.17 1.14 0.89 2.21 1.89 1.38 1.1 0.98 ...
#>  $ exploited: Factor w/ 2 levels "no","yes": 2 1 1 1 1 2 2 2 1 1 ...
xyplot(cv ~ age | exploited, LarvalFish)

xyplot(cv ~ age, groups=exploited, LarvalFish)