CONTENTS 



Part IV. The zooplankton, Section II (A. C.H. and E.R.G.) . . page 194 



Distribution I0 4 



Crustacea (cont.) 1 94 



Amphipoda x 94 



Isopoda 200 



Mysidacea 201 



Euphausiacea 201 



Pteropoda 22 4 



Echinodermata 22 7 



Tunicata 22 7 



The zooplankton of different regions within the area 230 



Vertical migration 231 



Patchiness in distribution 254 



Seasonal changes in the zooplankton 265 



Plankton and rough weather 268 



A consideration of the possibility of a lunar influence upon the plankton 272 



Part V. The plankton community, the whale fisheries, and the 



HYPOTHESIS OF ANIMAL EXCLUSION (A. C.H.) 273 



Plankton and whale distribution 273 



A further consideration of the plankton and the whale fisheries, with an 



introduction to the hypothesis of animal exclusion 276 



A fuller examination of the hypothesis of animal exclusion 300 



Vertical migration considered in relation to phytoplankton .... 322 



Vertical migration and the dynamics of distribution 343 



Some differences between this and other marine areas 356 



General summary and conclusions 361 



List of literature referred to 365 



Appendix I. Phytoplankton tables 371 



Appendix II. Zooplankton tables 377 



