#' @title Catch-at-age of Flathead Catfish from three Atlantic rivers.
#'
#' @description Catch-at-age of Flathead Catfish (\emph{Pylodictis olivaris}) from three populations of Atlantic rivers -- Lumber River, Northeast Cape Fear River (NCF), and Neuse River.
#'
#' @name FHCatfishATL
#'
#' @docType data
#'
#' @format A data frame of 44 observations on the following 3 variables:
#' \describe{
#' \item{river}{Collection river (\code{Lumber}, \code{NCF}, and \code{Neuse}).}
#' \item{age}{Age (yrs) assessed by otolith.}
#' \item{number}{Number of captured fish.}
#' }
#'
#' @section Topic(s):
#' \itemize{
#' \item Mortality
#' \item Catch curve
#' }
#'
#' @concept Mortality
#' @concept Catch Curve
#'
#' @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. \href{https://raw.githubusercontent.com/fishR-Core-Team/FSAdata/main/data-raw/FHCatfishATL.csv}{CSV file}
#'
#' @keywords datasets
#'
#' @examples
#' data(FHCatfishATL)
#' str(FHCatfishATL)
#' head(FHCatfishATL)
#' 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)
#'
NULL
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