200 



Vuivrmitij uf Califonilu Publications in Zoology L^'ol- 



Table 2. — Okganisms Per Cubic Meter in Plankton of 

 San Joaquin River in 1913 — {Continued) 



1913 



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 



9/13 



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 



Rioliteriolla 

 botryoidcs 



952,128 

 12,800 



105,792 



0,400 



Asterionella 

 gracillinia 



4,535,832 



945,516 



8,483,196 



932,292 



9,283,248 



9,918,000 



1,904,2.56 



2,353,872 



819,888 



2.274,528 



1,005,024 



1,930,704 



2,512,.560 



52,896 



555,408 



687,648 



449,616 



290,928 



2,803,488 



1.58,688 



211, .584 



1,428,192 



1,216,608 



3,173,760 



4,.549,056 



Scenedesiiius 

 obliquus 



3,200 

 105,792 

 211,,5S4 



3,200 



3,200 

 3,200 



158,688 

 3,200 

 6,400 



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 



52,898 

 105,792 



16,000 



105,792 



79,344 



2,164,7.36 

 423,168 



3,067.968 



2,909,2X1) 

 4,443,204 



Sceiiedesmus 

 quadricauda 



105,792 

 12,800 



3^206 



3,200 

 3,200 

 1, ()()() 

 2 11,. 584 

 317,376 

 476,064 

 105,792 

 158,688 

 581,856 



1,057,920 

 9.52,128 

 528,960 



1,057,920 

 423,168 

 846,336 

 9.52,128 

 952,128 



1,057,920 

 581,8.56 

 158,688 

 1.58,688 

 52,896 

 105,792 



1,600 

 52,896 



Amphiprora 

 alata 



Schroederia 

 setigera 



Stigeoclonium 

 sp. 



1,600 



1,600 



105,792 



105,792 



105,792 



1,600 



Bacillaria 

 paradoxa 



39,672 

 1,200 

 6,400 

 9,600 

 8,000 

 12,800 

 19,200 

 9,600 



(5,400 



25,600 



9,600 



6,400 



581,8.56 



41,600 



264,480 



185,136 



211,.584 



105,792 



19,200 



38^400 



12,,S00 

 19,200 



6,400 



Cocconeis 

 pcdiculus 



400 



3,200 

 3,200 

 105,792 

 25,600 

 3,200 

 1,600 



Ttota! 

 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 



4,0.58,496 



4,-371,480 



6,288,960 



7,212,048 



7,774,016 



2,397,224 



2,628,518 



l,S89,7ti0 



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 



1,295,9.52 



1.216,608 



2,136.496 



10,955,872 



6.030,144 



3,967,200 



3.358.S96 



2,115,840 



819,888 



714,096 



1,42.8,192 



766,992 



84(;,336 



476,0(54 



1.269.504 



1,110,816 



2,.539,00S 



2,8.56,384 



1,745, .508 



608,304 



