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Ages of Striped Bass (Morone saxatilis) assessed from heat-pressed scales and cracked-and-burnt otoliths.

Format

A data frame of 343 observations on the following 2 variables:

ageO

Age assigned from examinaton of otoliths

ageS

Age assigned from examination of scales

Source

From Figure 6 in Chapter 10 (Striped Bass) of the VMRC Final Report on Finfish Ageing, 2000 by the Center for Quantitative Fisheries Ecology at Old Dominion University. CSV file

Topic(s)

  • Age Comparison

  • Age Precision

  • Age Bias

  • Ageing Error

Examples

data(StripedBass1)
str(StripedBass1)
#> 'data.frame':	345 obs. of  2 variables:
#>  $ ageO: int  3 4 4 4 4 4 4 4 4 4 ...
#>  $ ageS: int  3 3 4 4 4 4 4 4 4 4 ...
head(StripedBass1)
#>   ageO ageS
#> 1    3    3
#> 2    4    3
#> 3    4    4
#> 4    4    4
#> 5    4    4
#> 6    4    4
plot(ageS~ageO,data=StripedBass1)

xtabs(~ageO+ageS,data=StripedBass1)
#>     ageS
#> ageO  3  4  5  6  7  8  9 10 11 12 13 14 15 16
#>   3   1  0  0  0  0  0  0  0  0  0  0  0  0  0
#>   4   1 22 12  0  0  0  0  0  0  0  0  0  0  0
#>   5   2  9 14  5  0  0  0  0  0  0  0  0  0  0
#>   6   0  0  8  9  0  1  0  0  0  0  0  0  0  0
#>   7   0  2 12 20 42  3  1  0  0  0  0  0  0  0
#>   8   0  0  2  0 10 17  3  0  0  0  0  0  0  0
#>   9   0  0  0  0  2  6 11  4  0  0  0  0  0  0
#>   10  0  0  0  0  1  2  9  7  0  0  0  0  0  0
#>   11  0  0  0  0  0  1  6 21 15  3  1  0  0  0
#>   12  0  0  0  0  0  2  1  3  4  6  0  0  0  0
#>   13  0  0  0  0  0  0  2  2  2  1  3  1  0  0
#>   14  0  0  0  0  0  1  1  0  1  2  2  0  0  0
#>   15  0  0  0  0  0  0  0  0  3  1  2  1  0  0
#>   16  0  0  0  0  0  0  0  0  0  1  3  2  0  1
#>   17  0  0  0  0  0  0  0  0  0  0  3  1  1  1
#>   18  0  0  0  0  0  0  0  1  0  0  1  1  0  3