The distribution of euphausia snperba in the prydz bay region was very patchy , its abundance was higher in the slope area ( the pelagic area between the isobaths 1000 m and 3000 m ) than the open sea area ( the pelagic area beyond the 3000 m isobath ) 大磷虾在普里兹湾海区的分布呈斑块状。分布趋势是陆坡区(在1000和3000米等深线之间的海区)各站的丰度普遍大于深海区(大于3000米深度的海区)各站的丰度。