Very low
Hardly any trace of salt. Too fresh for most people.
Gulf Coast
Gulf of Mexico
Hollywood
Patuxent River, Maryland
Pleasure House
Lynnhaven River, Virginia
Lynnhaven
Lynnhaven River, Virginia
Rappahannock River
Rappahannock River, Virginia
Skagit Bay
Skagit Bay
Kumamoto (low salinity)
Skagit Bay
