ZOOPLANKTON OF CENTRAL PACIFIC 393 



Table 10. — Zoo-plankton volumes obtained on cruise 16 of the Hugh M. Smith, with collection data 



' ApiKirent solar time. 



• Adjusted for day-nipht difference by the sine transformation method using a pooled regression coefficient (b = 0.1248). 



■• Estimated 3()-40 percent siphonophores. 



' Apparent solar time. 



3 Adjusted for day-night difference hy the sine transformation method 

 using a pooled regression coefficient (h = 0.1248). 



3 Doubtful volume; most likely the net was not properly washed down. 

 * Based on estimated meter readings. 



