Bull. C. S. H. I'.. 1924. (Doc. 968.) 



Fia. 23. Plankton at the surface, northern channel, April 15, l«20 (station 20105), dominated bj the 

 copepods Calanus.finmarchicus, Acartia, and Metridia. In connection with Figure 24 it illustrates 

 vertical stratification of the plankton. X 10 



w ^ 



Fio. 14 Plankton of thi deeper levels, :.i the same station as the surface haul m Figure 23 This deep haul 



(150 meters) was dominated bj the "naupliu " lar\ f barnacles (Balanus), with fewer Calanus 



ihi othei i opepods < lo 



