1920] 



Allen: Plcmkton of the San Joaquin River 



193 



Table 1. — Orgaxisms Per Cubic Meter in Plankton op 

 Stockton Channel in 1913 — (Continued) 



1913 



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/ 7 

 6/11 

 6/16 

 6/18 

 6/21 

 6/25 

 6 2S 

 7/ 3 

 7/ 5 

 7/ 9 

 7/12 

 7/16 

 7/19 

 7/23 

 7/26 

 7/30 

 8/ 2 

 8/ 6 

 8/ 9 

 8/13 

 8/15 

 8/20 

 8/23 

 8/27 

 8/31 

 9/ 2 

 9/ 6 

 9/ 9 

 9/13 

 9/17 

 9/20 

 9/24 

 9/27 

 10/ 1 

 10/ 4 

 10/ 8 

 10/11 

 10/15 

 10/18 

 10/22 

 10/26 

 10/29 

 11/ 1 

 11/ 5 

 11/ 8 

 11/12 



Cyclops 

 sp. 



6,400 



38,400 



22,400 



41,600 



38,400 



80,000 



73,600 



51,200 



57.(1110 



211,584 



57,600 



249,600 



192,000 



460,800 



317,376 



147,200 



264,480 



115,200 



179,200 



76,800 



317,376 



264,4S0 



179,200 



268,800 



370,272 



740,544 



454,400 



687,648 



264,480 



264,480 



317,376 



5,81,850 



264,480 



317,376 



1,005,024 



476,064 



740,544 



476,064 



634,752 



317,376 



793,440 



264,480 



581,856 



476,064 



370,272 



370,272 



224,000 



317,376 



211,584 



211,584 



134,400 



158,688 



121,600 



64,000 



38,400 



158,688 



76,800 



29,600 



400 



3,200 



Diapto 



Nauplius 



12,800 25,600 



52,896 70,344 



6,400 132,240 



22,400 185,136 



44,800 79.344 



6,400 132,240 



185,136 



423,168 



1,005,024 



264,480 



634,752 



1,163,712 



952,128 



899,232 



899,232 



872,784 



1,375,296 



211,584 



317,376 



846,336 



528,960 



476,064 



423,168 



1,057,920 



1,163.712 



846,336 



793,440 



740,544 



1,110,816 



687.64S 



740,544 



1,322,400 



1,269,504 



25,600 1 ,005,024 



1,692,672 



1,110,816 



846,336 



846,336 



1,216,608 



793,440 



1,586,880 



1,269,504 



1,322,400 



1,005,024 



1,110,816 



370,272 



952,128 



687,648 



264,480 



211,584 



528,960 



105,792 



264,480 



158,688 

 105,792 

 105,792 

 158,688 

 211,584 

 ......... 6,400 



12,800 

 19,200 



Total 

 Copepoda 



44,800 



170,640 



161,040 



249,136 



162,544 



218,640 



258,736 



474,368 



1,062,624 



175.964 



692,352 



1,413,312 



1,144,128 



1,360,032 



1,216,608 



1,019,984 



1,639,776 



326,784 



496,576 



923,136 



846,436 



740,544 



602,368 



1,326,720 



1,533,984 



1,586,880 



1,247,840 



1,428,192 



1,375,296 



952,128 



1,057,920 



1,904,256 



1,533,984 



1,348,000 



2,697,696 



1,586,8811 

 1,586,880 



1,322,400 



1,851,360 



1,110,816 



2,380,320 



1,533,984 



1,904,256 



1,481,088 



1,481,088 



740,544 



1,176,128 



1,005,024 



476,064 



423,168 



663,360 



264,480 



386,080 



222.6S8 



144,192 



264,480 



235,488 



211,584 



6,400 



12,800 



22,400 



44,800 



170,640 



161,040 



249,136 



162,544 



218,640 



258,736 



474,368 



1,062,624 



479,164 



692,352 



1,419,712 



1,144,128 



1,360.032 



1,223,008 



1,026,384 



1,646,176 



326,784 



196,576 



929,536 



852,836 



740,544 



602,368 



1,333,120 



1,533,984 



1,593,280 



1,247,840 



1,440,992 



1,375,296 



958,528 



1,064,320 



1,917,056 



1,533,984 



1,354,400 



2,697,696 



1,586,880 



1,590,080 



1,341,600 



1,857,760 



1,117,216 



2,405,920 



1,533,984 



1,917,056 



1,481,088 



1,500,288 



740,544 



1,195,328 



1,017,824 



601,056 



435,968 



676,160 



264,480 



386,080 



229,088 



150,592 



264,480 



235,488 



211,584 



6,400 



12,800 



22,400 



6,400 

 3,200 



3,200 



