Hawaiian Trough the Hawaiian Arch. The Hawaiian Arch extends about 200 meters above the surrounding ocean floor, and contains tilted coral reefs. The coral reefs in the Hawaiian Tough are described as mesophotic coral ecosystems, which can be found between 100 and 500 feet below sea level. 43 percent of fish species documented at the mesophotic reefs are unique to the Hawaiian Islands. At Maui’s ‘Au’au channel the largest uninterrupted mesophotic coral ecosystem was discovered, with an area larger than 3 square miles. These reefs contained many stony, reef building coral that belong to the genus Leptoseris, which are adapted for deep
Hawaiian language broadcast. Honolulu television station KGMB ran a weekly Hawaiian language program, "Āhai Ōlelo Ola", as recently as 2010. Additionally, the Sunday editions of the "Honolulu Star-Advertiser", the largest newspaper in Hawaii, feature a brief article called "Kauakukalahale" written entirely in Hawaiian by teachers, students, and community members. Today, the number of native speakers of Hawaiian, which was under 0.1% of the statewide population in 1997, has risen to 2,000, out of 24,000 total who are fluent in the language, according to the US 2011 census. On six of the seven permanently inhabited islands, Hawaiian has been largely displaced by English,