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Catch-at-age of Flathead Catfish from three Atlantic rivers.

Source: R/FHCatfishATL.R
FHCatfishATL.Rd

Catch-at-age of Flathead Catfish (Pylodictis olivaris) from three populations of Atlantic rivers -- Lumber River, Northeast Cape Fear River (NCF), and Neuse River.

Format

A data frame of 44 observations on the following 3 variables:

river

Collection river (Lumber, NCF, and Neuse).

age

Age (yrs) assessed by otolith.

number

Number of captured fish.

Source

From (approximately) Figure 2 in Kwak, T.J., W.E. Pine III, and D.S. Waters. 2006. Age, growth, and mortality of introduced flathead catfish in Atlantic rivers and a review of other populations. North American Journal of Fisheries Management 26:73-87. CSV file

Topic(s)

  • Mortality

  • Catch curve

Examples

data(FHCatfishATL)
str(FHCatfishATL)
#> 'data.frame':	44 obs. of  3 variables:
#>  $ river : Factor w/ 3 levels "Lumber","NCF",..: 1 1 1 1 1 1 1 1 1 1 ...
#>  $ age   : int  0 1 2 3 4 5 6 7 8 9 ...
#>  $ number: int  1 6 0 2 2 5 5 4 3 6 ...
head(FHCatfishATL)
#>    river age number
#> 1 Lumber   0      1
#> 2 Lumber   1      6
#> 3 Lumber   2      0
#> 4 Lumber   3      2
#> 5 Lumber   4      2
#> 6 Lumber   5      5
op <- par(mfrow=c(2,2),pch=19)
plot(log(number)~age,data=FHCatfishATL,subset=river=="Lumber",main="Lumber")
plot(log(number)~age,data=FHCatfishATL,subset=river=="NCF",main="NCF")
plot(log(number)~age,data=FHCatfishATL,subset=river=="Neuse",main="Neuse")
par(op)