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Salt marsh during low tide, mean low tide, high tide and very high tide (spring tide). A coastal salt marsh in Perry, Florida, USA.. A salt marsh, saltmarsh or salting, also known as a coastal salt marsh or a tidal marsh, is a coastal ecosystem in the upper coastal intertidal zone between land and open saltwater or brackish water that is regularly flooded by the tides.
A salt marsh in Scotland. Saltwater marshes are found around the world in mid to high latitudes, wherever there are sections of protected coastline. They are located close enough to the shoreline that the motion of the tides affects them, and, sporadically, they are covered with water.
salt marshes dominate Mangroves can be found in 118 countries and territories in the tropical and subtropical regions of the world. [ 21 ] The largest percentage of mangroves is found between the 5° N and 5° S latitudes.
Salt marshes can be generally divided into the high marsh, low marsh, and the upland border. The low marsh is closer to the ocean, with it being flooded at nearly every tide except low tide. [53] The high marsh is located between the low marsh and the upland border and it usually only flooded when higher than usual tides are present. [53]
The main types of intertidal wetlands are mudflats (e.g., mangrove swamps) and salt marshes. The mangrove swamps are encountered along tropical shores and are characterized by tree vegetation, while salt marshes are mostly found in temperate zones and are mostly grass ecosystems. [1] Intertidal wetlands are commonly encountered in most estuaries.
Salt marshes can be generally divided into the high marsh, low marsh, and the upland border. The low marsh is closer to the ocean, with it being flooded at nearly every tide except low tide. [25] The high marsh is located between the low marsh and the upland border and it usually only flooded when higher than usual tides are present. [25]
Tidal salt marsh at Ella Nore in Chichester, England. A tidal marsh (also known as a type of "tidal wetland") is a marsh found along rivers, coasts and estuaries which floods and drains by the tidal movement of the adjacent estuary, sea or ocean. [1]
Scarborough Marsh is a 3,200-acre saltwater marsh owned by the state of Maine and managed by the state's Department of Inland Fisheries and Wildlife as a wildlife management area. [1] It is situated in southern Maine, in the town of Scarborough , in Cumberland County .