394 FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Table 12. — Zooplankton volumes obtained on cruise 19 of the Hugh M. Smith, with collection data 



1 Apparent solar time. 



3 Adjusted for day-night difference by tlip sine transformation method using 

 a pooled regression coetficient (b = n.l248). 



3 Based on an estimated flow-meter reading. 



* This station was located on a shoal with depth of water about 10 fathoms: 

 the haul was made between the surface and about 5 fathoms. 



Table 13. — Zooplankton volumes obtained on cruise 15 of the Charles H. Gilbert, with collection data 



' Apparent solar time. 



2 Adjusted forday-night difference by the sine transformation method using 

 a p,)oled regression coefficient (b = 0.124fi). 



■^ Small hole (^i") in bag of net at end of haul. 

 * Sample not quantitative. 



a Principally euphausiids. 



8 Plus about 12 qts. of salps discarded. 



' No sample. 



* Estimated 60 percent salps. 



