The 1990 National Shellfish Register 



Table 5. Pollution Sources Affecting Harvest-Limited Acreage, 1990 a.b 



a. Acres are times 1 ,000; % is percent of all harvest-limited acreage in region. 



b. Since the same percentage of a shellfish area can be affected by more than one source, the percentages shown above 

 cannot be added. They will not sum to 100. 



coastal regions, 23 states, 122 

 estuaries, and in Alaska, five fisheries 

 management areas (Figure 1). The 

 total acreage of all estuarine growing 

 areas is approximately 21 .1 million 

 acres; 81 percent of these (1 7.2 

 million acres) are classified for har- 

 vest. Information also is presented on 

 an additional 1 .5 million acres of 

 classified offshore waters (from shore 

 to the three-mile limit). Classifications 

 for states and estuaries are provided 

 in Appendices B and C. 



Classified Acreage Of the 1 7.2 



million acres of estuarine waters that 

 were classified for harvest as of 

 January 1 , 1990, 63 percent were 

 approved for harvest and 37 percent 

 were harvest-limited (Table 3). Of the 

 harvest-limited acreage, about nine 

 percent was conditionally approved. 



Four states have begun to classify 

 offshore waters, 93 percent of which 

 are approved. Harvest-limited acre- 

 age (seven percent) in these areas is 

 primarily a result of management 



6 



