1920] 



Allen: Plankton of the San Joaquin River 



191 



Table 1. — Organisms Per Cubic Meter in Plankton of 

 Stockton Channel in 1913 — (Continued) 



Bosmina 



1913 Rotifera longirostri 



2/26 5,123,216 



3/ 1 3,680,128 



3/ 5 13,367,344 



3/ 8 12,086,440 



3/12 16,017,648 



3/15 3,744,384 



3/19 5,3S4,096 



3/23 4,386,224 



3/26 4,406,272 



3/29 6,305,728 



4/ 2 7,943,152 



4/ 5 8,178,640 



4/ 9 8,062,592 



4/13 6,318,432 



1 Hi 5,449,792 



4/19 9,422,544 



4/23 5,106,720 



4/26 9,577,936 



4/30 8,16S,240 



5/ 3 6,995,472 



5/ 7 14,039,840 



5/11 13,164,608 



5/14. 8.677,760 



5/17 6,493,024 3,200 



5/21 5,411,648 



5/24 2,846,208 6,400 



5/27 2,793,020 



5/31 3,207,264 



6/ 3 7.493,536 



6/ 7 4,024,608 



6/11 2,559,872 



6/16 3,477,760 



6 IS 4,819,736 



6 21 7,942,304 



6/25 18,702,592 



6/28 18,070,648 



7/ 3 4,290,592 



7/ 5 7,289,856 



7/ 9 5,137,320 



7/12 8,792,840 



7/16 4,386,976 



7/19 3,548,736 



7/23 3,745,632 



7/26 6,010,752 



7/30 4,271,784 6,400 



8/ 2 3,680,632 6,400 



8/ 6 2,801,792 



8/ 9 6,405,868 



8/13 6,188,640 



8/15 5,867,680 



8/20 9,467,192 3,200 



8/23 6,757,696 



8/27 4,787,776 



8/31 2,792,192 



9/ 2 2,652,512 



9/ 6 2,644,000 



9/ 9 6,600,704 6,400 



9/13 7,638,336 



9/17 2,736,096 6,400 



9/20 2,017,760 



9/24 2,831,400 6,400 



6,400 

 6,400 

 6,400 



6,400 

 6,400 



6,400 

 r,. ion 



12,800 

 6,400 

 6,400 

 6,400 



19,200 

 6,400 

 6,400 



25,600 



6,400 

 12.S00 

 12.S00 



3,200 



3,200 



6,40(1 



6,400 

 6,400 

 6,400 



6,400 

 6,400 



6,400 

 6,400 

 12,800 



i). mil 

 6,400 

 12,800 



6,400 



3,200 

 19,200 

 6,400 

 6,400 

 25,600 



"12,800 



19,200 



19,200 



3,200 

 3,200 



