IV-305 



proven in countries such as Japan where shrimp, oyster, and certain 

 finfish are raised on a profitable basis. However, the economic 

 use of mari culture is in its infancy in the United States. Although 

 the ultimate impact of jiquaculture practices would appear great, 

 increasing yields from five to as much as twenty times, the present 

 economic and social climate would seem to indicate that the impact of 

 mariculture will be relatively slight in immediate future decades. 

 When other ancillary values are added, it would apDear that proper 

 management of the natural estuarine environment is a preferable 

 course of action both to Dreserve and perhaps enhance the production 

 of fish and maintain the quality of this unique environmental 

 resource. 



COMMERCIAL AND NATIONAL DEFENSE TRANSPORTATION 



Commercial 



An environment favorable to transportation has been one of the 

 most significant historical factors in coastal and estuarine 

 development. Settlements originated at the sites of coastal 

 harbors and at the mouths of rivers because of the accessibility 

 of these areas to trading vessels. The commerce which passed 

 through these centers encouraged further growth and development. 

 The coastal and estuarine areas also saw rapid development of air, 

 rail, and highway systems because the main demand was located there 



