Very low
Hardly any trace of salt. Too fresh for most people.
Lynnhaven
Lynnhaven River, Virginia
Rappahannock River
Rappahannock River, Virginia
Skagit Bay
Skagit Bay
Chesapeake
Chesapeake Bay
James River
James River, Virginia
Gulf Coast
Gulf of Mexico
Kumamoto (low salinity)
Skagit Bay
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