#' @title Catch-at-age for Gulf Menhaden, 1964-2004.
#'
#' @description Estimated catch-at-age for Gulf Menhaden (\emph{Brevoortia patronus}), 1964-2004 from the reduction fishery in the U.S. Gulf of Mexico.
#'
#' @name Menhaden1
#'
#' @docType data
#'
#' @format A data frame with 41 observations on the following 7 variables.
#' \describe{
#' \item{year}{Year of capture.}
#' \item{age0}{Estimated catch (millions) of age-0 fish.}
#' \item{age1}{Estimated catch (millions) of age-1 fish.}
#' \item{age2}{Estimated catch (millions) of age-2 fish.}
#' \item{age3}{Estimated catch (millions) of age-3 fish.}
#' \item{age4}{Estimated catch (millions) of age-4 fish.}
#' \item{age5}{Estimated catch (millions) of age-5 fish.}
#' \item{age6}{Estimated catch (millions) of age-6 fish.}
#' }
#'
#' @section Topic(s):
#' \itemize{
#' \item Mortality
#' \item Catch curve
#' }
#'
#' @concept Mortality
#' @concept Catch Curve
#'
#' @source From Table 2 in Vaughan, D.S., K.W. Shertzer, and J.W. Smith. 2007. Gulf menhaden (\emph{Brevoortia patronus}) in the U.S. Gulf of Mexico: Fishery characteristics and biological reference points for management. Fisheries Research 83:263-275. \href{https://raw.githubusercontent.com/fishR-Core-Team/FSAdata/main/data-raw/Menhaden1.csv}{CSV file}
#'
#' @keywords datasets
#'
#' @examples
#' data(Menhaden1)
#' str(Menhaden1)
#' head(Menhaden1)
#' ages <- 0:6
#' # Extract one year, delete year column (the -1), and transpose to be a vector
#' ct <- t(Menhaden1[Menhaden1$year==1974,-1])
#' plot(ct~ages,pch=16,type="b",xlab="Age",ylab="Est. Catch (Millions)",main="year==1974")
#'
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