Vector datasets with no defined scale or accuracy should be considered suspect. Make sure you are familiar with your data before using it for projects or analyses. Every effort has been made to supply the user with data documentation. For additional information, see the References section and the Data Source Contact section of this documentation. For more information regarding scale and accuracy, see our web pages at: <http://www.geoplan.ufl.edu/education.html>
N - Polygons of the North Atlantic region. M - Polygons of the Middle Atlantic region. S - Polygons of the South Atlantic region. G - Polygons of the Gulf of Mexico region. P - Polygons of the Pacific region. L - Polygons of the Great Lakes region. U - Polygons within the US border, but not a part of the CAF. X - Polygons outside US boundaries.
Mixing Zone: 5 - 25 parts per thousand salinity. Seawater Zone: 25 parts per thousand or greater salinity Tidal Fresh Zone: 0 - 5 parts per thousand salinity