CONTENTS 



page 



PREFACE iv 



INTRODUCTION 1 



RESEARCH METHODS 1 



Oceanographic Information 1 



Biological Activity 6 



Rock Samples 6 



Sediment Samples 7 



Test Materials 13 



RESULTS 14 



Recovery of Test Materials 14 



Marine Growth on Test Materials 15 



Metal Panels . 15 



Wooden Panels 18 



Rope Specimens 25 



Plastic Specimens 25 



Wrappings Around Plastics 30 



0.015-Inch Insulation on No. 16 Wire 31 



Electrical Cable Insulation for Single Conductors 



and Multiconductors 35 



Laminated Plastics 37 



FINDINGS 37 



CONCLUSIONS 39 



FUTURE PLANS 39 



ACKNOWLEDGMENT 39 



APPENDIX 40 



REFERENCES 45 



MBL/WHOI 



D Q3Q1 OOMDIET 5 



