crecs: quantitative species distribution modelling

#' @name deutschebucht
#' @title Evironmental conditions and virtual species in the Deutsche Bucht
#' @description his data set gives the depth, median grain size, sorting coefficient, 
#' mud content, average shear stress by currents, average shear stress by waves, 
#' winter bottom water temperature, average primary production, and
#' the distribution of three virtual species  
#' in the south-east sector of the North Sea, the Deutsche Bucht. 
#' @docType data
#' @usage data(deutschebucht)
#' @seealso \code{\link{species}}
#' @format a \code{RasterBrick} containing 8 layers.
#' @source various
#' @author Jan M Holstein , 2015-03-05
NULL