200 



University of California Publications in Zoology [Vol. 22 



Tab£e 2. — Organisms Per Cubic Meter in Plankton of 

 San Joaquin River in 1913 — (Continued) 



5/24 

 5/31 

 6/ 3 

 6/16 

 6/21 

 6/28 

 7/ 5 

 7/12 

 7/19 

 7/26 

 8/ 2 

 8/ 9 

 8/15 

 8/23 

 8/31 

 9/ 6 

 '.1 13 

 9/20 

 9/27 

 10/ 4 

 10/11 

 10/18 

 10/26 

 11/ 1 

 11/ 8 

 11/15 

 11/22 

 11/30 

 12/ 6 

 12/14 

 12/20 

 12/27 



1913 



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 

 4/19 

 4/26 

 5/ 3 

 5/10 



5 17 

 5/24 

 5/31 

 6/ 7 



6 16 

 6/21 



952,128 

 12,800 



105,792 

 6,400 



Asterionella 

 gracillima 



4,535,S32 

 945,516 

 8,483,196 

 932,292 

 9,283,248 

 9,918,000 

 1,904,256 

 2,353,S72 



Sl'.I.SSS 



2,274,528 



1,005,024 



1.930,704 



2,512,560 



52,896 



555,408 



6S7.64S 



449,616 



290,928 



2,803,488 



L58,688 



211,584 



1,428,192 



1,216,608 



3,173,760 



4,549,056 



Scenedesmus 

 obliquus 



3,200 

 105,792 

 211,584 



3,200 



3,200 

 3,200 

 158,688 

 3,200 

 6,400 



Schroederia 

 setigera 



Stigeocloniurn 



105,792 

 105.792 



105,792 

 423,168 

 317,376 

 211,584 

 105,792 

 211,584 



6,400 

 105,792 

 52,896 



3,200 



1,600 

 1,600 



Asterionella 



gracillima 



(large) 



1,600 



52,VI6 

 105,792 



16,000 



105,792 



79,344 



2,164.736 

 423,168 



3,067,968 

 2.909.2S0 

 4,443,264 



105,792 

 12,800 



3,200 



3,200 

 3,200 

 1,600 

 211,584 

 317,376 

 476,064 

 105,792 



15S.0SS 



581,856 



1,057,920 



952.12S 



528,960 



1,057,920 



423,168 



846,336 



952,128 



952,128 



1,057,920 



581,856 



15S.6S8 



158,688 



52,896 



105,792 



1.600 

 52,896 



1,600 



1.600 



10.-., 792 



105,792 



1,600 



39,672 

 1,200 

 6,400 

 9,600 

 8,000 

 12,800 

 19,200 

 9,600 



li. 4(111 



25,600 



9,600 



6,400 



581,856 



41,600 



264,480 



185,136 



211,584 



105,792 



19,200 



38,400 

 12,800 

 19,200 



pediculu 



3,200 

 3,200 

 105,792 

 25.600 

 3,200 

 1,600 



Ttotal 

 Chlorophyceae 



3,200 



528,960 



224,384 



16,000 



148,992 



277,270 



168,288 



998,528 



2,160,640 



3,034,272 



2,997,376 



1,484,288 



4,827,840 



8,251,776 



5,539,584 



5,420,992 



4,058,496 



4,371,480 



6,28S,960 



7,212,048 



7.774,016 



2,397,224 



2,628,518 



1,889,760 



713,248 



677,856 



249,232 



194,736 



19,200 



56,096 



20,400 



110,792 



Cyclotella 

 spp. 



687,648 



1,031,472 



1,533,984 



515,736 



740.544 



1,295,952 



1,216,608 



2,136,496 



10,955,872 



6,030,144 



3,967,200 



3,358,896 



2,115,840 



sHl.sss 



714,096 



1,428,192 



766,992 



S46,336 



476,064 



1,269,504 



1,110,816 



2.539.00S 



2,850, Msl 



1,745,568 



608,304 



