Friends of Midway Atoll

National Wildlife Refuge

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Marine Life

Photo credit: Daniel Clark/USFWS
Photo credit: Daniel Clark/USFWS

Midway Atoll is more than meets the eye: beyond the blanket of a several million birds atop three small islands lies an abundant and diverse marine world. Midway’s terrestrial habitat of 1,464 acres is situated within a large, elliptical barrier reef measuring about 5 miles in diameter. Refuge realty extends 12 nautical miles from the atoll, encompassing 580,740 acres of marine resources; closer to terra firma, the area inside the lagoon includes about 15,000 acres. Midway is one of the “classical” closed atolls in the NWHI, with a lagoon enclosed by a barrier reef. Numerous patch reefs dot the sandy-bottomed lagoon.

 

Marine surveys in Midway waters have documented 266 species of fish and more than 300 marine invertebrates, including 29 types of stony or “hard” corals. It is likely that many more await discovery. Located at the northern extent of one of the highest-latitude coral reef ecosystems in the world, the waters within the Refuge are relatively cold, making the area an important location for research on biological diversity as well as the effects of heat-induced coral bleaching.

Dive in and meet some of Midway’s marine marvels on our pages about Green Sea Turtles, Hawaiian Monk Seals, Spinner Dolphins, and Fish & Marine Invertebrates.

coral-reef-Midway
Photo credit: Pete Leary/USFWS

Check out our Videos page to learn more about atoll formation.

GOONEY GAZETTES

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From the Blog

Tribute to Volunteer Shirley Doell

April 10, 2020

BETWEEN THE BATTLES

November 1, 2019

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