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Ages and lengths of Anchoveta from Chilean waters.

Source: R/AnchovetaChile.R
AnchovetaChile.Rd

Ages (in months) and lengths of Anchoveta (Engraulis ringens) from central Chilean waters.

Format

A data frame with 207 observations of the following 3 variables:

age.mon

Age in months.

tl.cm

Total length (cm).

cohort

Year-class.

Source

Directly from the authors of Cubillos, L.A., D.F. Arcosa, D.A. Bucareya, M.T. Canalesa. 2001. Seasonal growth of small pelagic fish off Talcahuano, Chile (37S, 73W): A consequence of their reproductive strategy to seasonal upwelling? Aquatic Living Resources 14:115-124. Data were in Figure 9. CSV file

Topic(s)

  • Growth

  • Seasonal Growth

  • von Bertalanffy

  • Somers model

Examples

data(AnchovetaChile)
str(AnchovetaChile)
#> 'data.frame':	207 obs. of  3 variables:
#>  $ age.mon: int  42 44 51 52 53 42 43 44 45 46 ...
#>  $ tl.cm  : num  17.1 18 18 18.2 18.3 ...
#>  $ cohort : int  1987 1987 1987 1987 1987 1988 1988 1988 1988 1988 ...
head(AnchovetaChile)
#>   age.mon   tl.cm cohort
#> 1      42 17.1241   1987
#> 2      44 18.0148   1987
#> 3      51 17.9809   1987
#> 4      52 18.1535   1987
#> 5      53 18.3083   1987
#> 6      42 16.8478   1988
AnchovetaChile$age <- AnchovetaChile$age.mon/12
plot(tl.cm~age,data=AnchovetaChile)