

10 20 30 40 



ZOOPLANKTON VOLUME, CC/IOOO M' 



FIG. 16 COMPARISON OF ZOOPLANKTON ABUNDANCE IN DIFFERENT REGIONS AND DIFFERENT 

 WATER MASSES OF THE CENTRAL PACIFIC. THE DATA FOR HAWAII ARE BASED ON 

 CRUISES 10,12, AND 17 OF THE HUGH M SMITH ; THE REMAINING DATA FOR THE 

 EQUATORIAL PACIFIC WERE DERIVED FROM SMITH CRUISES 2,5,7,8,9,11,14,15,16, 

 AND 18. (THE NUMBER OF SAMPLES FOR EACH INTERVAL OF LATITUDE IS INDICATED 

 FOR EACH BAR IN THE HISTOGRAM). 



48 



