CONTENTS 



Page 



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



I INTRODUCTION 7 



II PROJECT SETTING 8 



III PREVIOUS RELATED STUDIES 8 



1. General Studies of Artificial Habitat 8 



2. Previous Studies at Rincon Island 11 



IV STUDY METHODS 12 



1. General 12 



2. Reconnaissance Dives 13 



3. Talus Bed Measurements 13 



4. Seasonal Survey of Permanent Transects 13 



5. Mapping of Major Species Associations 13 



6. Quantitative Characterization of Species Associations. 17 



7. Natural Bottom Survey 19 



8. Gill Net Surveys 20 



V RESULTS AND DISCUSSION 20 



1. General 20 



2. Volume and Dimensions of Talus Beds 20 



3. Analysis of Seasonal Data from Permanent Transects . . 39 



4. Distribution of Major Species Associations 50 



5. Quantitative Characteristics of Major Species 



Associations 51 



6. Gill Net Survey Results 55 



7. Natural Bottom Survey Results 58 



VI SUMMARY AND CONCLUSIONS. 62 



LITERATURE CITED 64 



APPENDIX 



A DETAILED METHODOLOGY 67 



B SUMMARY DATA, SURVEY OF PERMANENT SEASONAL TRANSECTS ... 74 



C R-MODE DENDROGRAMS AND BOUNDARIES OF PRELIMINARY SPECIES 



■ ASSOCIATIONS 82 



D SUMMARY DATA, QUANTITATIVE CHARACTERIZATION OF MAJOR 



SPECIES ASSOCIATIONS 92 



E OBSERVATIONS ALONG NATURAL BOTTOM TRANSECT 101 



F SIEVE ANALYSIS OF NATURAL BOTTOM SEDIMENT SAMPLES 103 



G GLOSSARY 107 



