Ages and lengths of two year-classes of Sardine from Chilean waters.

Ages (in months) and total lengths of two year-classes of Sardine (Strangomera bentincki) from central Chilean waters.

Format

A data frame with 196 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(SardineChile)
str(SardineChile)
#> 'data.frame':	196 obs. of  3 variables:
#>  $ age.mon: int  24 25 26 27 28 12 14 16 17 18 ...
#>  $ tl.cm  : num  14.5 14.4 14.8 14.3 15.1 ...
#>  $ cohort : int  1988 1988 1988 1988 1988 1989 1989 1989 1989 1989 ...
head(SardineChile)
#>   age.mon   tl.cm cohort
#> 1      24 14.5300   1988
#> 2      25 14.4126   1988
#> 3      26 14.7543   1988
#> 4      27 14.2850   1988
#> 5      28 15.0855   1988
#> 6      12 10.8650   1989
SardineChile$age <- SardineChile$age.mon/12
plot(tl.cm~age,data=SardineChile)