132 University of California Publicatioiis in Zooloyij [Voi,. 22 



Table 1. — Organisms Per Cubic Meter in Plankton op 

 Stockton Channel in 1913 — {Continued) 



Coelastrum Pediastrum Pt'dinstrum Pcdiastrum Uaphidium Richtoriella 



1913 microporum boryamitii duplex simplex poljiiictrpliuiii botryoides 



4/30 6,400 (i,4()() 79,344 



5/ 3 3,200 105,792 



5/ 7 0,400 1,600 



5/11 105,792 107,.392 1,600 



5/14 6,400 108,992 



5/17 6,400 6,400 108,992 



5/21 19.200 6,400 1.58,688 



5/24 6,400 (i,40() 317,376 



5/27 3,200 12,800 264,480 



5/31 264,480 6,400 743,744 



6/ 3 158,688 105,792 r2,S()() 211, .584 



6/ 7 3,200 32.000 105,792 



6/11 1.58,688 317,376 



6/16 25,600 528,900 



6/18 3,200 6,400 



6/21 370,272 1.58,688 634,752 



6/25 3,200 317,376 264,480 3,200 



6/28 6,400 370,272 3,200 



7/ 3 793,440 4,800 



7/ 5 6,400 476,004 3,200 



7/ 9 158,688 6,400 1,005,024 108,992 



7/12 158,688 1,269,.504 3,200 



7/16 105,792 793,440 12,800 264,480 



7/19 105,792 12,800 740,.544 3,200 



7/23 211,584 634,752 1.58,688 6,400 



7/26 476,064 6,400 793,440 19.200 267,680 



7/.30 211,584 740,.544 3,200 3,200 



8/ 2 105,792 3,200 476,064 6,400 105,792 



8/ 6 211,584 12,800 264,480 323,776 



8/ 9 211,584 3,200 793,440 3,200 



8/13 105,792 423,168 6,400 264,480 



8/15 211,584 317,376 3,200 



8/20 423,168 211,,584 105,792 



8/23 634,752 476,064 3,200 211,584 



8/27 528,960 3,200 10.5,792 6,400 



8/31 6.34,752 105,792 370,272 



9/ 2 1,005,024 12,800 634,752 6,400 479,264 



9/ 6 2,221,632 634,752 211,584 211,584 105,792 



9/ 9 2,697,696 105,792 687,648 105,792 264,480 



9/13 3,.544,032 105,792 476,064 264,480 



9/17 1,163,712 6,400 423,168 12,800 267,680 



9/20 793,440 6,400 740,544 211,584 



9/24 264,480 12,800 1,851,360 25,600 317,376 



9/27 476,064 793,440 6,400 317,.376 



10/ 1 423,168 952,128 6,400 317.376 



10/ 4 317,376 12.800 1.110.816 19,200 370,272 52,896 



10/ 8 158,688 105,792 1,798,464 6,400 376,672 



10/11 211,584 12,800 2,010,048 171,488 



10/15 52,896 1,. 533,984 



10/18 476,064 158,688 52,896 



10/22 1.58.688 6,400 740,.544 52,896 105,792 



10/26 12,800 793,440 .52,896 



10/29 211,584 19,200 846,336 12,800 264,480 52,896 



11/ 1 1.58,688 6,400 528,960 6,400 317,376 52,896 



11/ 5 52,896 12,800 952,128 6,400 



11/ 8 6,400 158,688 52,896 370,272 



11/12 .52,896 .52,896 317,376 872,784 



11/15 264.480 .52,896 6,400 423,168 



11/19 79,344 12,,800 52,896 l.'-8,688 



11/22 28,800 6,400 238,032 105,792 



