CONTENTS 



Page 



CONVERSION FACTORS, U.S. CUSTOMARY TO METRIC (SI) 6 



I INTRODUCTION 7 



II SEDIMENT MOVEMENT AT THE MONTEREY CANYON HEAD 8 



Summary , 14 



III FAUNAE DISTRIBUTION AND SEDIMENT MOVEMENT 15 



IV REPRODUCTIVE ACTIVITY OF SELECTED INVERTEBRATES 20 



V EFFECT OF DISPOSAL OF DREDGED MATERIAL ON THE BENTHIC 



FAUNA 29 



1. The Control Area 29 



2. Experimental Burial of the Benthic Fauna 38 



3. The Effect of Disposal on the Benthos 42 



VI THE EFFECT OF DREDGING ON THE BENTHOS 50 



1. Introduction 50 



2. The Control and Harbor Stations before Dredging .... 50 



3. Recovery of the Benthic Fauna 50 



VII SUMMARY AND CONCLUSIONS 54 



LITERATURE CITED 57 



BIBLIOGRAPHY 62 



APPENDIX 



A DEVELOPMENT OF A QUANTITATIVE SAMPLING PLAN 65 



B SPECIES LIST 76 



TABLES 



1 Ridge stations of equal depths in order of increasing sediment 



stability 16 



2 Comparison of fauna at control stations in stable areas with 



fatina at canyon stations 16 



3 Species at the 20-meter control station 18 



4 Species at the 20-meter disposal station 19 



5 Species at the harbor station 25 



6 Reproductive activity of selected benthic invertebrates 27 



4 



