Are There Mangroves Along the Amazon River?

Mangroves are absent from the main stem of the Amazon River. These salt-tolerant trees require brackish or marine environments—typically found in coastal intertidal zones, estuaries, and deltas where freshwater mixes with seawater. The Amazon's massive freshwater discharge pushes the saltwater wedge far offshore, creating a vast freshwater plume. Mangroves do fringe the Amazon's coastal delta and estuary regions, but not the river itself.