Region
United States
184
California
2
Kosovo (Republic)
2
Libya
2
Accomack County
1
Africa South of the Sahara
1
Africa, Sub-Saharan
1
Arizona
1
Chesapeake Bay Watershed
1
China
1
Delta Region
1
Developing countries
1
Florida
1
Florida Keys
1
Hawaii
1
Louisiana
1
Mexico, Gulf of
1
Minnesota
1
Pontchartrain, Lake, Watershed (La.)
1
Puerto Rico
1
Serbia
1
Taiwan
1
Vieques Island
1
Virginia
1
Washington (D.C.)
1
Yugoslavia
1