1920] 



Allen: Plankton of the San Joaquin River 



263 



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

 Daily Series in 1913 — {Continued) 



Gomphosphaera Merisniopedium Microcystis Nostoc Oscillatoria Oscillatoria 



1913 aponina glaucum sp. sp. sp. tenuis 



7/30 211,584 323,776 317,376 



7/31 3,200 317,376 267,680 740,544 317,376 



8/ 1 264,480 264,480 317,376 158,688 



8/ 2 3,200 105,792 3,200 476,064 3,200 



8/ 3 6,400 3,200 581,856 370,272 211,584 



8/ 4 3,200 3,200 264,480 476,064 211,584 



Phorniidium 



1913 spp. 



7/ 5 



7/ 6 211,584 



7/ 7 211,584 



7/ 8 



7/ 9 



7/10 370,272 



7/11 



7/12 

 7/13 



7/14 



7/15 



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 



Rivularia Total 



sp. Schizophyceae 



1,559,584 



3,200 1,649,376 



1,857,760 



3,649,824 



2,164,240 



3,279,552 



2,803,488 



4,763,840 



4,723,744 



5,818,560 



5,719,168 



4,919,328 



4,919,328 



1,484,288 



2,648,002 



921,632 



2,280,928 



1,223,008 



6,400 1,262,208 



1,705,472 



1,811,264 



2,750,602 



2,449,216 



2,756,992 



2,436,416 



1,543,584 



2,075,744 



1,434,592 



703,648 



2,032,448 



1,226,208 



Actinastrum 

 hantzschii 



3,200 

 3,200 



6,400 

 3,200 



6,400 



3,200 

 3,200 



3,200 

 6,400 



Actinastrum 



hantzschii Coelastrum 



(large) niicroporum 



6,400 



105,792 



158,688 



264,480 



158,688 



3,200 



105,792 



12,800 158,688 



423,168 



3,200 211,584 



6,400 158,688 



105,792 105,792 



211,584 158,688 



19,200 3,200 



19,200 105,792 



6,400 105,792 



105,792 105,792 



105,792 



6,400 211,584 



3,200 



6,400 105,792 



105,792 476,064 



105,792 158,688 



19,200 6,400 



211,584 158,688 



6,400 211,584 



3,200 



12,800 264,480 



6,400 105,792 



19,200 211,584 



3,200 211,584 



Lagerheimia 

 wratislaviense 



7/ 5 

 7/ 6 

 7/ 7 

 7/ 8 

 7/ 9 

 7/10 

 7/11 

 7/12 

 7/13 

 7/14 

 7/15 

 7/16 

 7/17 

 7/18 

 7/19 



3,200 



Pediastruni 

 boryanum 



6,400 

 105,792 



105,792 



12,800 



Pediastrum 

 duplex 



476,064 



846,336 



5-JS,960 



l,2(i'.l,504 



1,005,024 



793,440 



1,110,816 



1,269,504 



899,232 



793,440 



740,544 



793,440 



1,005,024 



634,752 



740,544 



Pediastrum 

 simplex 



3,200 



Raphidium 

 polymorphum 



12,800 



264,480 

 105,792 



3,200 



3,200 

 264,480 

 211,584 



105,792 

 6,400 

 3,200 

 3,200 



Raphidium 

 pyrenogerura 



3,200 

 105,792 

 370,272 



3,200 

 158,688 



158,688 

 105,792 

 158,688 



3,200 



