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  • AcroporaCytherea1

    Acropora cytherea

    One of the major corals responsible for building the immense calcium carbonate substructure that supports the thin living skin of a reef.

  • Acanthurus Triostegus and coral

    Coral Gardens

    Convict tangs and coral gardens.

  • Acropora Nasuta

    Acropora nasuta

    Tightly packed branches and nariform (nose-shaped)corallites resemble floral clusters.

Pacific Remote Islands Marine National Monument

The World's Largest Marine Protected Area

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Johnston Atoll National Wildlife Refuge and six other national wildlife refuges are seemingly just dots near the equator of the Pacific Ocean, but upon a closer look these islands, reefs, and atolls are at the heart of the Pacific Remote Islands Marine National Monument, the largest marine conservation area in the world. These refuges host terrestrial and marine life in vast numbers and specialized life forms stretching our imagination. They provide a safe haven for millions of birds and marine life that swarm to shallow reefs and islands to rest, feed, mate, and give life to their off-spring.

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U.S. Fish and Wildlife Service

Marine National Monuments and their National Wildlife Refuges

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Johnston Atoll National Wildlife Refuge is managed by the Fish & Wildlife Service in the Marine Monuments Program of the Pacific Islands Refuges and Monuments Office (PIRAMO). For more information contact: U.S. Fish and Wildlife Service/ Johnston Atoll National Wildlife Refuge, Box 50167, Honolulu, HI 96850 808-792-9540

Marine Monuments and Wildlife Refuges of the Central Pacific Ocean

About the NWRS

National Wildlife Refuge System

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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.

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Giving Native Wildlife a Fighting Chance

  • CAST Crew 9 Stranded on Johnston Atoll!

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    Find out from crew member Mari West (center of photo) what feels like to be on an island in the middle of the Pacific when the end-of-your-tour ship does not arrive.

    Personal Blog Post 5.14.2015
  • Recovering an Island Ecosystem: One Strike Team at a Time

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    Photo: CAST Crew 2013-2014. Tenacious, driven, and fun personalities thrown in with some glue and grit, characterize the U.S. Fish and Wildlife Service’s Crazy Ant Strike Team (CAST) crews since 2010. The 10th Crazy Ant Strike Team biological crew of four volunteer technicians and one crew leader will live for six months on uninhabited Johnston Atoll. They are scheduled to depart Honolulu for their 4-day voyage across the ocean on-board the transport vessel Kahana, in June 2015. Previously, millions of Yellow Crazy Ants had completely displaced ground nesting bird populations and were impacting the largest nesting red-tailed tropic bird colony in the world. Building upon the eradication efforts of CAST crews before them this crew carries forward a goal of complete eradication of Yellow Crazy Ants that have been reduced, over a five year back-to-back strike team effort, by over 90%.

    C.A.S.T. Crew Yearbook 2010-2015
  • Tsunami Debris Finds Its Way Back Home to Japan

    Jet Ski Returned

    While Fish and Wildlife Service Volunteer was completing a bird survey on May 21, 2013, an intact Jet ski was sighted washed ashore from the 2011 Japan Tsunami. The Fish and Wildlife Service coordinated the return to its rightful owner, Mr. Matsunaga (right in photo). It is being repaired by the YAMAHA factory at Shizuoka. Photo by: Shigeru Fujieda

    Complete Story and Photos!
Page Photo Credits — DL Hayes/USFWS, James Maragos
Last Updated: May 20, 2015
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