What are the two main categories of wetlands found in Coastal Louisiana?

In Coastal Louisiana, wetlands are primarily categorized based on their salinity levels and the types of vegetation that dominate them. The two main categories are freshwater wetlands and saltwater marshes. Freshwater wetlands typically include areas that are inundated or saturated with water for a significant part of the year and support species adapted to lower salinity conditions. These wetlands play a crucial role in water filtration and provide habitat for various species.

On the other hand, saltwater marshes are influenced by tidal movements and contain salt-tolerant vegetation. They are vital in maintaining coastal ecosystems and offer protection against storm surges. Together, these two categories reflect the ecological diversity found in Coastal Louisiana's wetland systems, contributing to their functionality and demonstrating the complexity of freshwater and saltwater interactions in this unique environment. The other choices, while they may refer to important coastal features, do not accurately represent the primary categories of wetlands found in this area.