One of the major corals responsible for building the immense calcium carbonate substructure that supports the thin living skin of a reef.
Tightly packed branches and nariform (nose-shaped)corallites resemble floral clusters.
Convict tangs and coral gardens.
Special Use Permits
Special Use Permits enable the public to engage in wildlife-related activities on a National Wildlife Refuge which would otherwise be prohibited.Special Use Permits
About the Complex
Johnston Atoll NWR, in addition to nine other refuges, make up the Pacific Reefs Complex.
Johnston Atoll is managed as part of the Pacific Reefs.
Learn more about the complex
About the NWRS
The National Wildlife Refuge System, within the U.S. Fish and Wildlife Service, manages a national network of lands and waters set aside to conserve America’s fish, wildlife, and plants.
Learn more about the NWRS
Johnston Atoll NWR is closed to the public. All access is controlled by the U.S. Air Force.
Acropora / Stony Coral
Acropora is most common in shallow reef environments with bright light and moderate to high water motion. Many small reef fishes live near their colonies and retreat into the thicket of branches if threatened.
Page Photo Credits DL Hayes/USFWS, James Maragos
Last Updated: Feb 20, 2015