IV-291 



(1) Primary activities are those uses which by their 

 nature are locationally tied to the estuarine zone; 



(2) Secondary activities are those uses that are closely 

 associated with primary activities and as a consequence 

 have a significant tendency to locate in the estuarine 

 zone; and 



(3) Marginal activities are those uses which are not 

 directly tied to the estuary zone, but which tend to be 

 found in areas of urban-suburban development. 



Harvesting finfish and shellfish for food and other uses is an 

 example of primary activity associated with the estuary zone, while 

 plants constructed to process the catch denote secondary activities. 

 Marine waterborne commerce is directly tied to the estuary port 

 system and is thus considered a primary activity. The naval arm of 

 the national defense capability is likewise firmly linked to existing 

 ports and harbors and is thus a primary activity. Specialized 

 facilities and provision of logistical support for these primary 

 commercial shipping and naval activities are secondary activities. 

 Industries which require frontage on navigable waters to receive or 

 distribute bulk raw materials and/or processed goods by ship are 

 primary activities. Examples of this type of industry are petroleum 

 transportation (often closely tied to secondary processing activities), 



