IV-2 



estuarine zone. Because of the similarity of environmental conditions 

 within it, each region has estuarine systems, uses, and problems which 

 are typical of the region, if not unique to it. 



The use of the biophysical regions as the basic units for discussion 

 illustrates regional similarities and differences. These serve not 

 only to point out the essential unity of the estuarine zone as a 

 unique resource, but also to emphasize how an effective national 

 management program can use knowledge gained in one region to solve 

 problems in another. 



Certain photoaraphs of a purely illustrative nature, and not 

 essential to the continuity of the text, have been omitted in 

 this part of the report as presently duplicated. 



