marsh wetlands

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  The ecosystem function of this river corridor system directly affects the water quality in the Perdido River and Perdido Bay and the estuaries of the system.
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  In the biology of trees, a cypress knee is a distinctive structure in a root of a cypress tree of any of various species of the subfamil Taxodioideae. A likely function is that of structural support and stabilization and assist in anchoring the tree in the soft, muddy soil.