162° 



160° 



158° 



156° 



154° 



24= 



22' 



20° 



18° 



.5 WINDWARD 



~»44 



»65 



162° 



LEEWARD 



»55 



160° 



158° 



156° 



154° 



Figure 2. --Plankton-station positions of Hugh M. Smith cruise 21 (August 1953). showing 

 the boundaries of the 6 geographical subdivisions used in connparing areal differences 

 in zooplankton abundance. 



