1920] 



Allen: Plankton of tht Sun Joaquin River 



133 



11/26 

 11/30 

 12/ 3 

 12/ 6 

 12/10 

 12/14 

 12/17 

 12/20 

 12/24 

 12/27 

 12/31 



Table 1. — Organisms Per Cubic Meter in Plankton op 

 Stockton Channel in 1913 — (Continued) 



Coelastrum 

 microporum 



6,400 

 52.896 

 79,344 

 3,200 

 800 

 800 



6,400 

 1,600 

 3,200 

 1,600 

 800 

 son 



1,600 

 1,600 



32,000 

 79,344 



52,896 

 19,200 

 19,836 

 33,060 

 400 

 13,224 

 13,224 

 39,672 

 33,060 



Pediastrun 

 simplex 



79,344 

 1,600 



105,792 

 54,496 

 59,908 

 13,224 

 53,296 

 t6,2S4 

 13,224 



119,016 

 85,956 



400 



1913 



1/ 5 

 V 8 

 1/12 

 1/15 

 1/19 

 1/22 

 1/26 

 1/29 

 2/ 2 

 2/ 5 

 2/ 8 

 2/12 

 2/15 

 2/19 

 2/23 

 2/26 

 3/ 1 

 3/ 5 

 3/ 8 

 3/12 

 3/15 

 3/19 

 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 



6,612 



400 

 13,224 



800 

 800 



3,200 

 1,600 



1,600 



6,400 

 52,896 



79,344 



1,600 



3,200 



264,480 



211,584 



423,168 



1,322,400 



2,591,904 



Scenedesmus 

 quadricauda 



400 

 33,060 



400 



400 

 13,224 



800 



1,600 



52,896 



52,896 



39,672 



132,240 



6,400 



79,344 



6,400 



52,896 



132,240 



3,200 



105,792 



3,200 



3,200 



6,400 



105,792 



79,344 



6,400 



158,688 



52,896 



132,240 



132,240 



52,896 



1,600 



52,896 



185,136 



317,376 



■ 19,200 



264,480 



1,057,920 



1,216,608 



3,385,344 



2,539,008 



400 

 400 



800 

 52,896 



1,600 

 1,600 



3,200 



3,200 

 105,792 

 105,792 

 105,792 



Stigeoclonium Ulothrix 



sp. sp. 



3,200 

 3,200 3,200 



