CONTENTS 



Introduction page^ 279 



Methods 280 



Hydrology of the area 286 



Previous work 293 



Distribution of Rhincalanus gigas 293 



Horizontal distribution, season 193 1-2: 



Falkland Sector, November to mid-January 294 



Falkland Sector, mid-January to mid-February 297 



Around the Antarctic Continent, April to October 299 



Bathymetrical distribution, seasons 1931-2 and 1932-3: 



Falkland Sector 301 



Weddell Sea 304 



Horizontal distribution, season 1932-3: 



Falkland Sector, October to December 308 



Falkland Sector, February to March 311 



Vertical range and diurnal variation 314 



Summary 315 



Life history 316 



Approach of the spawning period 316 



Composition of the stock of Rhincalanus gigas 322 



Drake Passage and South Atlantic Ocean, November 193 1 . . . 323 



Scotia Sea and South Georgia, December 1931 326 



South Atlantic Ocean, east of South Georgia, mid-December 1931 to 



mid-Januar}- 1932 326 



Weddell Sea, mid-December 1931 to mid-January 1932 .... 330 



Weddell Sea and Eastern Scotia Sea, end of January 1932 . . . 332 



Falkland Islands to South Georgia, mid-February 1932 .... 334 



Summary, Falkland Sector, season 193 1-2 336 



South Indian Ocean and Australian Sector, winter months, April, 



May and June 1932 338 



Summary, South Indian Ocean and Australian Sector, Winter 



months 1932 340 



Drake Passage, October to mid-November 1932 341 



Scotia Sea and South Atlantic Ocean, mid-November to mid-December 



1932 341 



Drake Passage, early February 1933 345 



Falkland Islands to South Georgia, February 1933 .... 346 



Weddell Sea, March 1933 349 



Summary, Falkland Sector, season 1932-3 351 



Comparison of seasons 193 1-2 and 1932-3, Falkland Sector . . 352 



Discussion 354 



General Summary 338 



List of Literature 360 



Tables I-VI 362 



