What are salt marshes?

Salt marshes are coastal wetlands that are regularly inundated with saltwater, typically influenced by tides. They are found in the intertidal zone, where they provide a unique ecosystem characterized by salt-tolerant vegetation. These areas play a crucial role in coastal protection, serving as natural barriers against storm surges and erosion. They also provide habitat for a variety of wildlife, including birds and marine species, and contribute to water filtration and nutrient cycling.

The definition reflects the ecological significance of salt marshes, highlighting their connection to coastal dynamics and biodiversity. The context of how these wetlands interact with tidal movements and salinity levels is critical, making them distinct from areas where freshwater is entirely separated from saltwater, deep oceanic regions, or urban developments.