FOREWORD 



This report describes the research methods, results, and conclusions 

 of a cooperative marine biological fouling research program between 

 the U. S. Navy Hydrographic Office and the Harbor Defense Unit, 

 Norfolk, Virginia. The need for such research was established by the 

 Navy's Inshore Survey Program. These data can be of use to the Navy 

 in its maintenance program by furnishing guidance as to timely 

 introduction and removal of equipments from marine waters and in 

 operating ships and equipment more economically. This program 

 provided valuable information not only specific to the approaches 

 to Chesapeake Bay but also pertinent to analogous marine environments 

 elsewhere. Also, it will serve as a prototype for research in other 

 areas. 



E. C. STEPtyAN 



Rear Admiral, U. S. Navy 



Hydrogapher 



