146 University of California Publications in Zoology [ VoL - 22 



Table 1. — Organisms Per Cubic Meter in Plankton of 

 Stockton Channel in 1913 — (Continued) 



Nitzschia Nitzschia Nitzschia Pleurostauron Stauroneis Stephonodiscus 



1913 sigma sigmoidea vermicularis parvulum phoenicenteron sp. 



2/12 



2/15 1,600 26,448 



2/19 3,200 39,672 



2/23 800 800 



2/26 1,600 



3/ 1 1,600 52.896 



3/ 5 52,S96 



3/ 8 1,600 79,344 



3/12 79.344 



3/15 105,792 



3/19 105,792 



3/23 132,240 



3/26 



3/29 1,600 



4/ 2 1,600 



4/ 5 79,344 



4/9 



4/13 1,600 



4/16 158,688 



4/19 158,688 



4/23 1,600 52,896 



4/26 79,344 



4/30 52,896 



5/3 52,896 3,200 



5/ 7 79,344 



5/11 1,600 1,600 



5/14 158,688 



5/17 6,400 211,584 6,400 



5/21 105.792 



5/24 211,584 



5/27 6,400 3,200 105.792 



5/31 



6/ 3 3,200 



6/7 3.200- 



6/11 3,200 



6/16 6,400 211,584 



6/18 3,200 



6/21 



6/25 105,792 



6/28 



7/ 3 3,200 



7/ 5 



7/ 9 



7/12 



7/16 



7/19 



7/23 ........... ... 



7/26 



7/30 ................ ... 



8/ 2 6,400 



8/ 6 



8/ 9 3,200 



8/13 



8/15 



8/20 3,200 



8/23 3,200 



8/27 



8/31 400 



9/ 2 



9/6 3,200 105,792 



