R/habitat_bbh.R

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

#' @title Blueback herring habitat
#'
#' @description A dataset containing the surface area of blueback herring
#' habitat and features for individual flow line segments 
#' comprising habitat units in Atlantic coast drainages.
#'
#' @format A data frame with 274,726 observations of 7 variables:
#' \describe{
#' 
#' \code{REACHCODE}{ code used to identify individual habitat units}
#' 
#' \code{Hab_sqkm}{ surface area of habitat in square kilometers}
#' 
#' \code{Latitude}{ latitude at downstream terminus of habitat unit}
#' 
#' \code{State}{ governmental unit at downstream terminus of habitat unit}
#' 
#' \code{River_huc}{ name of river to which habitat unit belongs, derived from hydrologic unit codes}
#' 
#' \code{POP}{ genetic reporting group geographic region within which habitat unit falls}
#' 
#' \code{DamOrder}{ order of dam at downstream terminus of habitat unit. Cumulatively assigned such that all habitat units upstream of a given dam all have dam_order >= 1}
#' 
#' }
#' 
#' @source Shawn Snyder
"habitat_bbh"