Spatial Coverage
- Galveston Bay (Tex.)16
- Norwegian Sea16
- Oceania.16
- Alaska15
- Biscay, Bay of (France and Spain)15
- Juan de Fuca, Strait of (B.C. and Wash.)15
- Massachusetts15
- Pacific Coast (Wash.)15
- Philippine Sea15
- Virginia15
- Aegean Sea14
- Atlantic Intracoastal Waterway14
- British Columbia14
- Florida, Straits of14
- Gulf Coast (Tex.)14
- Huron, Lake (Mich. and Ont.)14
- Puget Sound (Wash.)14
- Spain14
- Atlantic Coast (N.C.)13
- Columbia River13
