Place
- Nantucket Sound (Mass.)3
- Penobscot Bay (Me.)3
- Tomales Bay (Calif.)3
- Vineyard Sound (Mass.)3
- Kenya2
- Rhode Island Sound (Mass. and R.I.)2
- Albion River Watershed (Calif.)1
- Block Island Sound (R.I.)1
- Blue Hill Bay (Me.)1
- Boston Harbor (Mass.)1
- California, Northern1
- Canada1
- Cobscook Bay (Me.)1
- Earth1
- Earth (Planet)1
- Frenchman Bay (Me.)1
- Greenland1
- Guam1
- Hopkins Marine Station1
- Ipswich Bay (Mass.)1