Place
- Greenland3
- Iceland3
- New York3
- Northeastern States3
- Block Island (R.I. : Island)2
- California2
- Delaware Bay (Del. and N.J.)2
- Georges Bank2
- Guam2
- Muscongus Bay (Me.)2
- Nantucket Shoals (Mass.)2
- New York Harbor (N.Y. and N.J.)2
- Northern Mariana Islands2
- U.S. Virgin Islands2
- Washington2
- American Samoa1
- Asia1
- Atlantic Coast (New England)1
- Atlantic Coast (U.S.)1
- Boon Island (Me.)1