CONTENTS 



page 



INTRODUCTION 1 



RESEARCH METHODS 1 



Oceanographic Informal-ion 1 



Biological Activity 2 



Test Materials 7 



RESULTS 9 



Marine Growth on STU Complex . 9 



Marine Growth on Test Materials 10 



Electrical Tape Specimens • 10 



Rope Specimens 11 



Plastic Specimens 11 



0.015-Inch Insulation Over No. 16 Wire 13 



Insulated Cables — Single and Multiconductor 13 



Wood Specimens 15 



Unaffected Materials 15 



SUMMARY OF FINDINGS - TEST SITE II 16 



COMPARISON OF TEST SITES I AND II 16 



CONCLUSIONS 17 



FUTURE PLANS 17 



Test Site I (Nominal Depth of 6,000 Feet) 17 



Test Site II (Nominal Depth of 2,500 Feet) 18 



REFERENCES 19 



APPENDIXES 



A — Biological Effects on Materials Assembled on Bio-racks 20 



B — Examples of Specimens Recovered From Ocean Floor . 26 



DISTRIBUTION LIST 43 



MBL/WHOI 



D D3D1 DOMDIS? T 



