198 



University of California Publications in Zoology [Vol. 22 



Table 2. — Organisms Per Cubic Meter in Plankton of 

 San Joaquin River in 1913 — (Continued) 



Oscillatoria 



1913 sp. 



3/15 



3/23 52,896 



3/29 1,600 



4/ 5 



4/13 



4/19 



4/26 1,600 



5/ 3 



5/10 



5/17 



5/24 



5/31 



6/ 7 



6/16 38,400 



6/21 



6/28 



7/ 5 



7/12 



7/19 3,200 



7/26 3,200 



8/ 2 793,440 



8/ 9 105,792 



8/15 105,792 



8/23 105,792 



8/31 211,584 



9/ 6 105,792 



9/13 



9/20 



9/27 



10/ 4 



10/11 



10/18 



10/26 



11/ 1 211,584 



11/ 8 



11/15 3,200 



11/22 



11/30 



12/ 6 



12/14 



12/20 



12/27 1,600 



Actinastrum 

 hantzschii 



1913 (large) 



1/ 5 



1/12 



1/19 



1/25 



2/ 2 



2/ 8 



2/15 



2/23 



3/ 1 



3/ 8 



3/15 



3/23 



3/29 



4/ 5 



4/13 



Oscillatoria Phormidium 

 tenuis spp. 



3,200 



52,896 

 1,600 

 3,200 



79J344 



105,792 '.'Z'Z'Z... 



3,200 



"158,688 

 317,376 



317,376 



105,792 

 12,800 



105,792 



105,792 



"'158,688 



""'."""'."" 105,792 



3,200 1,600 



1,600 



Coelastrum Pediastrum 



microporum boryanum 



1,200 



800 



26,448 



19,836 



24,000 



51,200 



41,600 



79,344 



4S.000 



132,240 



1S5,136 



41,600 



28,800 



105,792 



35,200 



423,168 



158,688 



423,168 



687,648 



38,400 



105,792 



211,5S4 



52,896 



79,344 



158,688 



3,200 



6,400 

 6,400 



12,S00 



6,400 



Pediastrum 

 duplex 



400 



400 



2,400 



400 



16,000 



60,800 



16,000 



105,792 



19,200 



19,200 



185,136 



54,400 



3,200 



12,800 



19,200 



Total 

 Schizophyceae 



59,296 



56,096 



325,376 



4,800 



64,096 



52,896 



8,000 



185,136 



846,336 



370,272 



952,648 



1,110,816 



618,560 



323,776 



981,776 



267,680 



3,151,512 



6,512,S08 



3,864,608 



4,829,536 



4,624,352 



4,462,464 



8,211,680 



4,773,440 



3,609,728 



4,165,288 



3,821,312 



3,596,928 



2,179,840 



647,552 



753,344 



144,192 



825,440 



12,800 



275,680 



84,144 



59,296 



1,600 



3,200 



54,496 



57,696 



3,200 

 1,600 



1,600 



1,600 

 9,600 

 1,600 

 1,600 



3,200 



52,896 



396,720 



3^200 



""12,800 



105,792 



6,400 



3,200 



79,344 



3,200 



185,136 



158,688 

 6,400 



19,200 

 211,584 



317,376 

 105,792 



25,600 

 105,792 



52,896 



Raphidium 

 polymorphum 



3,200 

 1,600 



105,792 

 3,200 



