R/YPerchCB2.R

In FSAdata: Data to Support Fish Stock Assessment ('FSA') Package

#' @title Stock and recruitment data for Yellow Perch in Chequamegon Bay, 1975-1986.
#' 
#' @description Yellow Perch (\emph{Perca flavescens}) stock-recruitment by year-class in Chequamegon Bay, 1975-1986.
#' 
#' @name YPerchCB2
#' 
#' @docType data
#' 
#' @format A data frame with 12 observations on the following 2 variables:
#'  \describe{
#'    \item{yrclass}{Year-class (see below)}
#'    \item{stock}{Estimated numbers of mature females caught the year prior to the origin of the 1975-1986 year classes}
#'    \item{recruits}{Catches of age-2 fish (when the year-class is formed)}
#'  }
#'  
#' @section Topic(s):
#'  \itemize{
#'    \item Stock-Recruit
#'    \item Recruitment
#'  }
#' 
#' @concept Stock-Recruit
#' @concept Recruitment
#' 
#' @source From (approximately) Figure 7 in Bronte et al. 1993. Dynamics of a yellow perch population in Western Lake Superior. North American Journal of Fisheries Management. 13:511-523. \href{https://raw.githubusercontent.com/fishR-Core-Team/FSAdata/main/data-raw/YPerchCB2.csv}{CSV file}
#' 
#' @keywords datasets
#' 
#' @examples
#' data(YPerchCB2)
#' str(YPerchCB2)
#' head(YPerchCB2)
#' op <- par(mfrow=c(1,2),pch=19)
#' plot(recruits~yrclass,data=YPerchCB2,type="b")
#' plot(recruits~stock,data=YPerchCB2)
#' par(op)
#' 
NULL