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TABLE OF CONTENTS 



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EXECUTIVE SUMMARY ill 



INTRODUCTION 1 



QUALITATIVE ECOSYSTEM DESCRIPTION 2 



Plants 2 



Krlll 2 



Other Zooplankton 4 



Ice Invertebrates 4 



Birds ^ 



Pish and Cephalopods 4 



Seals 5 



Whales 5 



Benthos 12 



Exchanges with Other Ecosystems 12 



COMPARISON WITH OTHER MARINE ECOSYSTEMS .13 



QUANTITATIVE ECOSYSTEM DESCRIPTION 15 



Stock Estimates 15 



Phytoplankton 15 



Krill 15 



Other Zooplankton l6 



Fish 18 



Squid 18 



Birds 18 



Crabeater seals 19 



Whales 19 



Predation Table 20 



SUMMARY ECOSYSTEM DESCRIPTION 23 



KRILL PRODUCTION 2l4 



KRILL HARVEST QUESTIONS 25 



Surplus Argument 25 



Yield Estimates 25 



MANAGEMENT AND CONSERVATION CONCERNS 2 7 



REFERENCES 29 



PERSONAL COrmUNI CAT IONS 3^ 



