VTTA DAY HAULS 



TWILIGHT HAULS 



NIGHT HAULS 



Q 



3 



a. 

 o 



Q 



=3 



o 



2 



A. SAMPLE VOLUMES 

 2ND WEEK 3RD WEEK 



4TH WEEK 



10 20 30 10 20 30 10 20 30 10 20 30 40 



ZOOPLANKTON VOLUME, CC/IOOOM^ 



FIG. 3 ZOOPLANKTON VOLUMES, COLLECTED ON THE NORTH-SOUTH SECTION ALONG 158° 

 25' W. LONGITUDE ON JOHN R MANNING CRUISE 8, BEFORE (A) AND AFTER (B) 

 ADJUSTMENT BY THE SINE METHOD TO EQUILIBRATE FOR THE DIURNAL VARIATION. 



20 



