144 Vniversity of California Puhlications in Zoology [Vol. 22 



Table 1. — Organisms Per Cubic Meter in Plankton of 

 Stockton Channel in 1913 — {Continued) 



Navicula Navicula Navicula Navicula Nitzschia Nitzachia 



1913 dubia gracilis sp. viridis acicularis annularis 



1/ 5 



1/ 8 400 



1/12 • 400 



1/15 13,224 400 13,224 



1/19 33,000 13,.24 



1/22 800 400 



1/26 400 13,224 



1/29 26,848 



2/ 2 13,224 19,830 



2/ 5 13,224 13,224 



2/ 8 800 27,248 



2/12 39,672 26,448 



2/15 800 26,448 



2/19 39,672 120,616 



2/23 39,672 800 



2/26 1,600 3,200 



3/ 1 1,600 107,392 



3/ 5 52,896 



3/ 8 1,600 3,200 3,200 



3/12 52,896 52,896 3,200 



3/15 105,79J i;600 



3/19 1,600 79,344 



3/23 105,792 1,600 



3/26 105,792 79,344 



3/29 52,896 1,600 



4/ 2 79,344 79,344 



4/5 52,896 



4/ 9 105,792 1,600 



4/13 1,600 4,800 



4/16 52,896 1,600 80,944 



4/19 52,896 1,600 



4/23 211,584 



4/26 52.896 1,600 185,136 



4/30 79,344 264,480 



5/ 3 79,344 



5/ 7 1,600 317,376 



5/11, 52,896 ' 290,928 



5/14 10.5,792 952,128 



5/17 158,688 3,200 1,533,984 6,400 



5/21 3,200 2,644,800 



5/24 264,480 6,400 5,289,600 



5/27 15,181,152 



5/31 317,376 20,999,712 



6/ 3 264,480 23,221,344 



6/ 7 3,200 11,055,264 



6/11 3,200 11,108,160 



6/16 105,792 13,752,960 



6/18 211,,584 19,624,416 



6/21 370,272 14,969,.568 6,400 



6/25 158,688 11,901,600 



6/28 211,-584 11,108,160 



7/3 211,584 10,050,240 



7/ 5 4,284,.576 



7/ 9 3,200 3,200 2,909,2,80 



7/12 4,866,432 



7/16 370,272 5,035,120 



7/19 211,584 4,125,888 



7/23 3,200 2,380,320 



7/26 423,168 6,982,272 



7/30 370,272 ....; 3,755,616 



