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fishing and swimming piers, and private beaches. Commercial and 

 personal transportation requires airports, highways, and commercial 

 port facilities. 



Structures built to protect or conserve the shoreline include bulk- 

 heads to hold the shore in place, dikes to prevent flooding and to 

 extend reclaimed land, jetties to provide a protective barrier 

 between the sea and ship channels, and groins along beach areas to 

 control sand movement. 



THE SOCIAL AND ECONOMIC VALUES OF ESTUARINE USE 



All uses have value, both individually and as part of the development 

 and use of the entire estuarine resource for the benefit of the 

 present and future national community. The importance and total value 

 of any estuarine system lie not in the measure of economic value 

 for any particular use, but in multiplicity of use related to the 

 needs of people who live there or otherwise depend on the estuarine 

 resource. 



FISH AND WILDLIFE HABITAT 



The value of the estuarine zone as fish and wildlife habitat both 

 depends on and augments its value for other uses, particularly 

 recreation and commercial fishing. 



