Does the site contain mangrove?
Mangrove forests are comprised of taxonomically diverse, salt-tolerant tree and other plant species which thrive in intertidal zones of sheltered tropical shores, “overwash” islands, and estuaries. Mangrove trees have specially adapted aerial and salt-filtering roots and salt-excreting leaves that enable them to occupy the saline wetlands where other plant life cannot survive. Source: http://www.ramsar.org/about_mangroves_2.