1920] 



Allen: Plankton of the San Joaquin River 



181 



Table 1. — Organisms Per Cubic Meter in Plankton of 

 Stockton Channel in 1913 — (Continued) 



1913 



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 

 11/15 

 11/19 

 11/22 

 11/26 

 11/30 

 12/ 3 

 12/ 6 

 12/10 

 12/14 

 12/17 

 12/20 

 12/24 

 12/27 

 12/31 



Braehionus 

 angularis 

 caudatus 



423, 16S 



211,584 



105,792 



105,792 



1,269,504 



1,428,192 



1,692,672 



899,232 



952,128 



317,376 



476,064 



476,064 



2,433,216 



2,062,944 



687,648 



19,200 



264,480 



740,544 



581,856 



581,856 



793,440 



423,168 



264,480 



158,688 



370,272 



19,200 



25,600 



6,400 



Braehionus 

 budapestenensis 



19,200 

 6,400 



52,896 

 6,400 



6,400 



6,400 

 12,800 



6,400 



6.4(10 



6,400 



6,400 



3,200 

 6,400 

 3,200 

 3,200 

 9,600 



Braehionus 

 6,400 



6,400 

 6,400 



3,200 

 3,200 



12,S00 

 6,400 



32,000 

 6,400 

 6,400 



32,000 



6,400 

 6,400 



12,800 

 2,644,480 



3,200 

 158,688 

 317,376 

 687,648 

 952,128 

 740,544 

 476,064 

 105,792 

 158,688 

 317,376 



1,269,504 



476,064 



370,272 



6,400 



105,792 



1,005,024 

 370,272 

 423,168 

 634,752 

 15S.688 

 158,688 

 52,896 

 211,584 



6.400 



9,600 

 12,800 

 19,200 

 105,792 

 79,344 

 16,000 



9,600 



1,600 

 800 



1,600 



Braehionus 



egg, attached 



male 



105,792 



105,792 

 19,200 



52,896 

 " 19,200 

 2liJ584 



9,600 

 12,800 



V 5 



1/ 8 

 1/12 

 1/15 

 1/19 

 1/22 

 1/26 

 1/29 

 2/ 2 

 2/ 5 



Braehionus 

 egg, free 

 female 



13,224 

 33,060 

 6,400 

 26,448 

 13,224 

 400 



19,836 



13,224 

 92,568 



Braehionus 



egg, free 



male 



plicatilis 



1,600 

 2,000 

 5,200 

 13,224 



26,448 

 4,S00 

 26,448 

 52,896 

 92,56S 

 99,180 



6,612 

 400 

 800 

 400 



1,600 



400 



17,600 



59,508 



52,896 



