igo 



DISCOVERY REPORTS 



Table 40. Monthly record of the total eggs and larvae taken on the South Georgia whaling grounds based 

 on the catches of the jo-cm. diameter vertical nets, the number of stations made monthly {or bi-monthly) 



being shown on the right in bold 



Calyptopes Furcilias 



Depth First Second Meta- , * , , * ^ 



{m.) Eggs NaupUi Nauplii nauplii 1 231 23456 



Month 

 Nov. 



Oct. 



Sept. 



Aug. 



May- 

 April 



March 



Feb. 



Jan. 



Dec. 



250-0 

 500-250 

 750-500 

 1000-750 



250-0 

 500-250 

 750-500 

 1000-750 



250-0 

 500-250 

 750-500 

 1000-750 



250-0 

 500-250 



750-500 

 1000-750 



250-0 

 500-250 

 750-500 

 1000-750 



250-0 

 500-250 

 750-500 

 1000-750 



250-0 

 500-250 

 750-500 

 1000-750 



250-0 

 500-250 

 750-500 

 1000-750 



250-0 

 500-250 

 750-500 

 1000-750 



I — 



1 — 



4 — 



2 — 



585 148 2 — 



8 14 — — 



32 

 I 



32 

 4 



17 



2 



4 

 4 



10 

 I 



92 

 6 



187 



5 



36 

 6 



I — 



41 



51 



4 



16 



12 



10 



3 

 2 



4 



iS 



I 



33 



49 



49 



14 



reckoned with, the whole protracted span of the spawning season, November to March. Eggs occurred 

 at 47, or 48%, of them. In the same period, again reckoning all the years the work has lasted, 

 442 stations were made in the oceanic water of the Weddell and East wind zones and in the coastal 

 and oceanic waters of the South Georgia whaling grounds. Eggs occurred at 44, only 10% of them. 

 Covering this period in the South Georgia area alone 196 closely spaced stations were made repre- 

 senting a grand total of 880 operations of the vertical net. Yet for all this intensive local work only 

 eleven eggs were found, seven at one station and one each at four others, a result so meagre that it is 

 difficult to avoid the conclusion that the spent and gravid females found in this krill-rich northern 

 field contribute little or nothing locally to the annual recruitment of the euphausian population and that 

 these island waters therefore are not concerned in the spawning except perhaps on an insignificant scale. 



