140 DISCOVERY REPORTS 



Table 25. Measurements of stomach samples from fifteen whales taken by FjF 'Southern Princess' 

 in the season 1932-3 with the percetitage figures shown in italics 



Total 



51-60 mm. measured 



— 228 



— 168 



— 195 



— 185 



— 176 



— 218 



— 131 



— 192 



— 192 



— 195 



— 172 



— 198 



— 19s 



— 130 



— 170 



— 2745 



advance of summer in these high latitudes the pack retreats and the scene of hunting moves south- 

 wards with it. As the retreat progresses more and more krill that have spent the winter and spring 

 below the ice are uncovered, the last to be freed being the most southerly and those that have 

 ' wintered ' longest below the pack. As a result of their prolonged existence in such cold and dark 

 conditions the growth and development of these high southern swarms is much retarded, the Sixth 

 Furcilias that spring from the previous summer's spawnings surviving in some instances into March 

 more than a year later, for as long in fact as 12-15 months after they were born.^ It seems clear 

 enough, therefore, that many of Nemoto's end season East Wind whales must have been feeding 

 largely on this stunted and retarded population (see p. 397, Fig. 136). 



1 The effect of ice on the growth and development of the krill is discussed on p. 355 and illustrated in Figs. 107 

 and 108. 



