Place
- Africa1
- Alabama15
- Alameda County (Calif.)70
- Alaska14
- Albemarle Sound (N.C.)7
- Albion River Watershed (Calif.)8
- American Samoa18
- Arizona17
- Arkansas15
- Asia1
- Atlantic Coast (New England)1
- Atlantic Coast (U.S.)1
- Atlantic Ocean33
- Bahamas3
- Baltimore Canyon7
- Block Island (R.I. : Island)4
- Block Island Sound (R.I.)8
- Blue Hill Bay (Me.)8
- Bodega Bay (Calif.)6
- Boon Island (Me.)1