148 



DISCOVERY REPORTS 



the coast between Adelaide Island and Anvers Island, with greatest concentration off the former 

 island. No krill was taken on the line of stations made to the north-west from Adelaide Island 

 (Sts.WS 508-517). 



Weddell Sea, January-February 193 1 (Sts. WS 534-561). Fig. 68. 



Towards the end of January 193 1 the 'William Scoresby' sailed south-eastward from South 

 Georgia, encountering pack-ice north of the South Sandwich Group. The ice was skirted to the 

 eastward and was found to fall away to the south and east. The ship went southwards for about 600 

 miles in open water to 68° 53' S, 13" 03' W, where the pack was again encountered. 



20" 



•W5537 

 S^W5536 

 " , |#WS53a 



WS559' .wsssa 



J^S539« WS540 



WS557*' |*WSS4I 



O i 



WS556 • I ©WSS^a 



W5555 



Fig. 68. Distribution of young Etiphausia superba, Weddell Sea (i-m. net hauls), 



January-February 1931. 



The stations where krill was taken are all concentrated on the northern part of the line between 

 South Georgia and the point east of the Sandwich Group, where the ship turned southward into the 

 ice-free water of the eastern Weddell Sea. 



At St. WS 534 ninety-six young E. superba were taken in the vertical nets. At Sts. WS 538 and WS 

 542 they were abundant in the i-m. nets, over 5000 individuals being taken at each of these stations, 

 and the vertical nets at St. WS 540 contained a moderate number. E. superba was absent from all the 

 stations southward from WS 539, including the ice-edge station WS 552, at which six sets of ob- 

 servations were made over a period of twenty-four hours. Flights of five closing metre nets were 

 fished, the lowest at about 500 m. ; in none of these was young E. superba taken. 



