CONTENTS 



Introduction /"^^^ 3 ' ' 



Acknowledgements 3ii 



Previous Work ON THE Species 312 



Material AND Methods 3^3 



Horizontal Distribution OF Adolescents AND Adults . . . • SH 



Range in Antarctic and Subantarctic water 314 



Seasonal variation . . . . • • • • ■ • -3'" 

 Regional variation . . . . ■ • • • • • -31° 



Distribution in relation to surface temperature 319 



Euphausia triacantha and E. superba 319 



Horizontal Distribution of Larvae 321 



Vertical Distribution of Adolescents and Adults . . . -323 



Vertical Distribution of Larvae 329 



Swarming 33° 



Development and Growth 33° 



Larval stages .......••••• 33° 



Spawning 333 



Adolescents and adults 333 



Growth rate 334 



Summary 337 



References 337 



