Biological communities formed by the skeletons of calcareous seawater organisms, usually corals.
USGS Pacific coral reefs website [ More info] Overview of research in the Hawaiian Islands and Guam to gain insight into the structure of coral reefs, to provide the basis for future monitoring, and to understand the influences of natural processes and human activities on coral reef health.
USGS St. Petersburg Coastal and Marine Science Center [ More info] Extreme storms, sea-level rise, and the health of marine communities are some of the major societal and environmental issues studied by this part of USGS.
USGS St. Petersburg Coastal and Marine Science Center--Research activities in the U.S. Virgin Islands [ More info] Explains type of information we collect and the problems we study in this area, focusing on coral reef ecosystems, ocean acidification, and sea-level change.
Alphabetical Index of Topics
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