Relating to or produced by the combined action of rivers and the ocean; found in estuaries or areas where freshwater and saltwater interact.
From fluvio- (river) + marine (relating to the sea, from Latin marinus). This compound describes the dynamic boundary zone where two different water systems meet.
Fluviomarine environments are Earth's most productive ecosystems—mangrove swamps and river deltas are so rich because they get nutrients from both mountains and oceans, a liquid exchange of riches.
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