JiN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC 



Figure 8. --Monthly variation in zooplankton abundance, surface temperature, and 

 skipjack catch in Hawaiian waters. The zooplankton data are for the years 1951 - 

 1954 and were obtained on Hugh M. Smith cruises 10, 12, 17, 20, 21, 22, 23,24, 

 and 26; John R. Manning cruises 8 and 9; and Charles H. Gilbert cruises 11, 12, 

 13, and 16. Number of zooplankton samples is shown in parentheses. The tem- 

 perature data constitute a 6-year average, 1950 - 1955, and were assembled by 

 Gunter Seckel, Oceanographer , POFI. The skipjack catch data are a 4-year average, 

 1951 - 1954, derived from naonthly catch data supplied by the Territory of Hawaii, 

 Division of Fish and Game. 



Table 4. --Results of correlation analyses comparing adjusted zooplankton volumes of Hugh 

 M. Smith cruises 20, 21, and 26, and certain environmental factors 



11 



