Degree of Threat: A : Very threatened throughout its range communities directly exploited or their composition and structure irreversibly threatened by man-made forces, including exotic species
Comments: Conidered extremely susceptible to sedimentation, bleaching, disease, eutrophication, anchor damage and boat groundings (Jaap, 1979; Bak, 1981; Gladfelter, 1982; Peters, 1984). Tilmant (1987): extensive damage in Biscyane National Park, Florida from boat groundings. Rogers (1988): diver-related damage in USVI. Dustan and Halas (1987): extensive anchor damage in Florida.