Here in Louisiana, we have four different types of marsh.
The Freshwater marsh has the highest plant species diversity, having a salinity range of 0-2 ppt.
Picture: U.S. Geological Survey
The Intermediate marsh has a high plant species diversity, with a salinity range of 2+-10 ppt. It is a type of marsh that exists just in Louisiana.
Picture: America's WETLANDS Foundation
The Brackish marsh has a moderate plant species diversity, having a salinity of 10+-20 ppt.
Picture: America's WETLANDS Foundation
And finally, the Saline (salt) marsh has a low plant species diversity, with a salinity of >20 ppt.
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