DISCOVERY REPORTS 



Fig. 84. Charts showing the distribution of Oithona frigida in the upper layers of water at stations in the 

 1926-7 surveys. The squares represent the average numbers per 50 m. vertical haul with N 70 V nets from 

 250 m. (or less at shallow-water stations) to the surface. For hydrological and phytoplankton conditions see 

 Figs. 2,6, 7, 8, 38, 39 and 41. 



