Spatial Coverage
- Atlantic Coast (S.C.)3
- Chesapeake Bay (Md. and Va.)3
- Frederick Sound (Alaska)3
- Green Bay (Wis. and Mich.)3
- Huron, Lake (Mich. and Ont.)3
- Iditarod Region3
- Illinois3
- Lincoln County3
- Long Island Sound (N.Y. and Conn.)3
- Massachusetts3
- New York (State)3
- North Dakota3
- Ohio3
- Oregon3
- U.S.3
- Windham County3
- Wyoming3
- Africa.2
- Albany County2
- Aleutian Islands (Alaska)2
