Ages and lengths of Blue Catfish.

Ages and total lengths of Blue Catfish (Ictalurus furcatus) collected form the Wilson Reservoir on the Tennessee River, AL.

Format

A data frame with 119 observations on the following 2 variables.

age

Age (from otoliths)

tl

Total length (mm)

Source

From (approximately) Figure 2 of Maceina, M.J. 2007. Use of piecewise nonlinear models to estimate variable size-related mortality rates. North American Journal of Fisheries Management 27:971-977. CSV file

Topic(s)

• Growth

• von Bertalanffy

Examples

data(BlueCatfish)
str(BlueCatfish)
#> 'data.frame':	119 obs. of  2 variables:
#>  $ age: int  1 2 2 2 3 3 3 3 3 3 ...
#>  $ tl : int  194 228 241 254 254 266 282 285 292 304 ...
head(BlueCatfish)
#>   age  tl
#> 1   1 194
#> 2   2 228
#> 3   2 241
#> 4   2 254
#> 5   3 254
#> 6   3 266
plot(tl~age,data=BlueCatfish)