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Maro Reef (Hawaiian: Nalukākala - "surf that arrives in combers") is a largely submerged coral atoll located in the Northwestern Hawaiian Islands It was discovered in 1820 by Captain Joseph Allen of the ship Maro , after whose ship the reef was named.
The south shore of Molokai boasts the longest fringing reef in the U.S. and its holdings—nearly 25 mi (40 km) long. [10] Molokai is part of the state of Hawaii and located in Maui County, Hawaii, except for the Kalaupapa Peninsula, which is separately administered as Kalawao County.
The western reef terrace is one of the biggest shelf-reefs, with dimensions of 2 by 3 miles (3.2 by 4.8 km). Over 150 species of coral inhabit Palmyra Atoll, double the number recorded in Hawaii. [2] Palmyra Atoll has no permanent population.
The reef system at French Frigate Shoals supports 41 species of stony corals, including several species that are not found in the main Hawaiian Island chain. More than 600 species of marine invertebrates, many of which are endemic, are found there as well. [25] More than 150 species of algae live among the reefs.
The Northwestern Hawaiian Islands include many atolls, and reefs. Due to Hawaii's isolation 30% of the fish are endemic (unique to the island chain). [1] The Hawaiian Islands comprise 137 islands and atolls, with a land area of 6,423.4 square miles (16,636.5 km 2). [2]
The Amazon Reef (also referred to as the Amazonian Reef) is an extensive coral and sponge reef system, located off the coast of French Guiana and northern Brazil. It is one of the largest reef systems in the world known to exist, with scientists estimating its length to be over 600 miles (970 km) long, and covering over 3,600 square miles ...
Red pencil urchin – Papahānaumokuākea. The Papahānaumokuākea Marine National Monument (PMNM) (roughly / p ɑː p ɑː ˈ h ɑː n aʊ m oʊ k u ˌ ɑː k eɪ. ə / [2]) is a World Heritage listed U.S. National Monument encompassing 583,000 square miles (1,510,000 km 2) of ocean waters, including ten islands and atolls of the Northwestern Hawaiian Islands.
The Bay is approximately 8 mi (13 km) long and 2.7 mi (4.3 km) wide, with a mouth opening of about 4.6 mi (7.4 km) wide and a maximum depth of 40 ft (12 m) in the dredged channel. It has one of the two barrier reefs in the archipelago, the other being the 27 mi (43 km) barrier reef of Molokaʻi island , and also has extensive development of ...