1920] 



Allen: Plankton of the San Joaquin River 



139 



Table 1. — Organisms Per Cubic Meter in Plankton of 

 Stockton Channel in 1913 — (Continued) 



3/23 

 3/26 

 3/29 

 4/ 2 

 4/ 5 

 4/ 9 

 4/13 

 4/16 

 4/19 

 4/23 

 4/26 

 4/30 

 5/ 3 

 5/ 7 

 5/11 

 5/14 

 5/17 

 5/21 

 5/24 

 5/27 

 5/31 

 6/ 3 

 6/ 7 

 6/11 

 6/16 

 6/18 

 6/21 

 6/25 

 6/28 

 7/ 3 

 7/ 5 

 7/ 9 

 7/12 

 7/16 

 7/19 

 7/23 

 7/26 

 7/30 

 8/ 2 

 8/ 6 

 8/ 9 

 8/13 

 8/15 

 8/20 

 8/23 

 8/27 

 8/31 

 9/ 2 

 9/ 6 

 9/ 9 

 9/13 

 9/17 

 9/20 

 9/24 

 9/27 

 10/ 1 

 10/ 4 

 10/ 8 

 10/11 

 10/15 



Diatoma 

 vulgare 



1,600 



1,600 



3,200 



1,600 

 52,896 



1,600 

 1.600 

 1,600 



6,400 

 25.200 



6,400 



3,400 3,200 



6,400 



6,400 



6,400 



6,400 



6,400 

 3,200 



6,400 



6,400 

 6.400 

 6,400 



Fragillaria 

 capucina 



3,200 

 3,200 

 3,200 

 3,200 

 1,600 



3,200 

 1,600 



6,400 



1,600 

 3,200 

 3,200 



6,400 



6,400 



12,800 

 6,400 



3,200 



6,400 

 3^200 



6,400 



:;,2(in 



105,792 105,792 



6,400 



