1920] 



Allen: Plankton of the San Joaquin River 



269 



Table 4. — Plankton Organisms Per Cubic Meter in Stockton Channel, 

 Daily Series in 1913 — (Continued) 



1913 



7/11 

 7/12 

 7/13 

 7/14 

 7/lS 

 7/16 

 7/17 

 7/18 

 7/19 

 7/20 

 7/21 

 7/22 

 7/23 

 7/24 

 7/25 

 7/26 

 7/27 

 7/28 

 7/29 

 7/30 

 7/31 

 8/ 1 

 8/ 2 

 8/ 3 

 8/ 4 



Trachelomonas 

 volvocina 



370,272 

 476,064 

 687,648 

 105,792 

 370,272 



3,200 



3,200 



158,688 

 158,688 

 105,792 

 211,584 

 211,584 

 3,200 



105,792 

 105,792 

 370,272 



Total 

 Mastigophora 



3,600,128 

 6,195,232 

 8,410,464 

 7,987,296 

 7,193,856 

 5,352,096 

 5,302,400 

 5,342,496 

 7,041,568 

 3,491,136 

 3,494,336 

 2,492,512 

 3,285,952 

 3,417,344 

 3,705,920 

 8,198,880 

 6,357,120 

 6,988,672 

 7,355,744 

 4,244,480 

 4,390,368 

 6,403,616 

 4,832,736 

 5,669,472 

 7,368,544 



Amoeba 

 radiosa 



Difflugia 

 pyriforiiiis 



6,400 

 6,400 

 3,200 

 105,792 

 6,400 



105,792 

 158,688 

 264,480 

 211,584 

 6,400 

 105,792 



3,200 



Microgromia 

 socialis 



3,200 

 3,200 



105,792 

 105,792 



3 200 

 3,200 



3,200 



158,688 

 105,792 



Total 

 Rhizopoda 



3200 



3,200 

 6,400 

 3,200 



112,192 



12,800 



9,600 



6,400 



108,992 

 6,400 



105,792 



370,272 



158,688 



267.680 



217,984 



12,800 



211,584 



3,200 



6,400 



158,688 

 105,792 



Heterophrys Raphidiophrys 



1913 fockei elegans 



7/ 5 528,960 



7/ 6 740,544 



7/ 7 846,336 



7/ 8 1,110,816 



7/ 9 846,336 



7/10 370,272 



7/11 423,168 



7/12 158,688 



7/13 1,110,816 



7/14 1,005,024 



7/15 370,272 



7/16 528,900 



7/17 158,688 



7/18 211,584 



7/19 370,272 



7/20 6,400 105,792 



7/21 105,792 264,480 



7/22 317,376 



7/23 317,376 



7/24 317,376 



7/25 / 105,792 



7 26 370,272 



7/27 476,064 



7/28 105,792 423,168 



7/29 528,960 



7/30 44,800 370,272 



7/31 105,792 476,064 



8/ 1 6,400 687,648 



8/ 2 528,960 1,269,504 



8/ 3 528,960 740,544 



8/ 4 317,376 952,128 



Total Holophrya 



Heliozoa sp. 



528,960 158,688 



740,544 105,792 



846,336 158,688 



1,110,816 105,792 



846,336 211,584 



370,272 211,584 



423,168 423,168 



158,688 3,200 



1,110,816 211,584 



1,005,024 105,792 



370,272 528,960 



528,960 6,400 



158,688 



211,584 



370,272 



112,192 3,200 



310,272 264,480 



317,376 3,200 



317,376 



317,376 3,200 



105,792 264,480 



370,272 211,584 



476,064 317,376 



528,960 158,688 



528,960 158,688 



415,072 105,792 



581,856 105,792 



694,048 264,480 



1,798,464 105,792 



1,269,504 3,200 



1,269,504 158,688 



Prorodon 

 ap. 



Tintinnidium 

 fluviatile 



3,200 



3,200 



105,792 



105,792 



3,200 



6,466 



6,400 



