3°2 



DISCOVERY REPORTS 



Table LIV 



Correlations of phosphate values and average numbers of macroplankton (N ioo H) at 

 stations in South Georgia survey of December-January 1926-7 



a Excluding one outstanding catch of 840 

 " „ ,, ,, .. I.I57 



4 2 .5 00 

 '' „ ,, „ >, 4.8oo 



10,835 



The results of these two series are tabulated in Table LV. They both give a fair con- 

 firmation of the results shown in Table LIV. What is more important is that split into 

 separate day and night series they represent two quite independent sets of observations 

 divided by no artificial means, and the one set in general confirms the other. Euphausia 

 superba in both day and night series has its highest average numbers in the highest 

 range of phosphate values (in the night series one of these is due to an exceptionally 

 high catch which if omitted still places the highest average number in the highest 

 phosphate range). Pareuchaeta and Parathemisto in the night series also have their 

 highest average numbers in the highest range of phosphate values. The only species 

 which have their highest average numbers in the lowest phosphate values in addition 

 to Calanus acutus, Rhincalanus and Antarctomysis (already noted in Table LIV) are 



