R/olney_mcbride.R

In danStich/anadrofish: Anadromous Fish Population Responses to Habitat Changes

#' @title Weight-batch fecundity relationships for American Shad
#'
#' @description A dataset containing weight-batch fecundity relationships
#' for St. Johns, York, and Connecticut Rivers from Olney and McBride (2003).
#' Regressions fit log10 batch fecundity as a function of
#' log10 body weight (g).
#' 
#' @format A data frame with 3 observations of 4 variables:
#' \describe{
#' 
#' \code{system}{ Study system}
#' 
#' \code{region}{ Life-history region: NI = Northern iteroparous,
#' SI = Southern iteroparous, SP = Semelparous}
#' 
#' \code{alpha}{ Intercept}
#' 
#' \code{beta}{ Slope}
#' }
#' 
#' @source Olney, J. E. and R. S. McBride. 2003. Intraspecific 
#' variation in batch fecundity of American shad (*Alosa sapidissima*): 
#' revisiting the paradigm of reciprocal latitudinal trends 
#' in reproductive traits. American Fisheries Society 
#' Symposium 35:185-192.
#' 
"olney_mcbride"