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University of California Publications in Zoology [Vol. 22 



Table 2. — Organisms Per Cubic Meter in Plankton of 

 San Joaquin River in 1913 — (Concluded) 



1/5 

 1/12 

 1/19 

 1/25 

 2/ 2 

 2/ 8 

 2/1.5 

 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 

 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 



400 

 1,200 



3,200 



12,800 



3,200 



400 



400 



4,400 



3,200 

 3,200 

 3,200 

 3,200 

 3,200 

 3,200 

 3,200 



6,400 

 3,200 

 3,200 

 3,200 

 6,400 



5,821,536 

 2,299,404 

 13,356,680 

 3,751,684 

 13,983,312 

 16,816,012 

 8,672,576 

 10,530,652 

 14,529,728 

 13,204,020 

 12,502,272 

 12,027,616 

 18,115,104 

 6,880,048 

 10,023,664 

 16,330,872 

 12,421,328 

 8,507,964 

 10,896,192 

 17,784,480 

 13,031,040 

 25,877,192 

 26,220,984 

 18,035,072 

 21,395,760 

 32.071,398 

 16,780,444 

 34,980,772 

 61,889,064 

 61,589,888 

 105,792 117,439,648 



103,235,586 



105,448,076 



217,550,950 



201,760,892 



105,792 229,022,312 

 12,800 151,795,800 



141,406,360 



93,592,016 



96,256,744 



.. 150,741,918 



88,902,832 



63,576,626 



34,666,400 



17,158,816 



13,933,184 



14,814,640 



23,213.808 



17,005,776 



9,575,208 



7,518,192 



6,370,776 



25,600 

 12,800 

 12,800 



12,800 

 6,400 

 9,600 

 16,000 

 28,S00 

 32,000 



105,792 



6,400 



