Place
- Frenchman Bay (Me.)10
- Riverside County (Calif.)10
- Saco Bay (Me.)10
- Cobscook Bay (Me.)9
- Machias Bay (Me.)9
- Narragansett Bay (R.I.)9
- New Hampshire, United States9
- Ventura County (Calif.)9
- Albion River Watershed (Calif.)8
- Bakersfield, California, United States8
- Block Island Sound (R.I.)8
- Blue Hill Bay (Me.)8
- Fundy, Bay of8
- Georges Bank8
- Ipswich Bay (Mass.)8
- Jasper Ridge Biological Preserve (Calif.)8
- Minnesota, United States8
- Mongolia8
- Nantucket Shoals (Mass.)8
- Nova Scotia, Canada8