Image caption
(Top) The Virgin Islands in the northeast Caribbean Sea. (Bottom) The U.S. Virgin Islands National Park protects the island of St. John (white outlined in top image of the U.S. and British Virgin Islands) as well as several thousand acres of adjacent waters. The island is surrounded by coral reefs. Image based on Landsat data (top) and benthic habitat data from Zitello et al., 2009 (bottom).