CONTENTS 



Page 

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



I INTRODUCTION 7 



II STUDY AREA 8 



III SAMPLING AND ANALYTICAL PROCEDURES 11 



1. Sediment Analysis 11 



2. Faunal Analysis 11 



IV RESULTS 15 



1. Sediments 15 



2. Fauna 15 



V DISCUSSION 21 



VI SUMMARY 22 



LITERATURE CITED 24 



APPENDIX 



A SPECIES LIST AND NUMBER OF INDIVIDUALS SAMPLED BY STATION 



AND SAMPLING PERIOD. 27 



B NUMBER OF INDIVIDUALS COLLECTED AT ALL STATIONS BY FAUNAL 



GROUPS 39 



TABLES 



1 Percent particle-size distribution, percent organic content, and 



mean grain size of sediments at stations 1, 2, 3, and 4. . . . , . 15 



2 Total number of species, individuals, and extrapolated faunal 



densities 17 



FIGURES 



1 Profile of shelf morphology off Hillsboro Beach, Florida 9 



2 Location of study area and stations sampled 10 



3 Core sampling of benthic fauna 12 



4 Cumulative number of species collected versus increased number of 



samples for stations 2 and 4 .... 13 



5 Distribution of substrate grain sizes at control stations 1 and 2 



and borrow stations 3 and 4 16 



6 Cumulative percent of grain sizes at control stations 1 and 2 



and borrow stations 3 and 4 16 



7 Faunal similarity dendogram, grouped according to degree of 



similarity 19 



4 



