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
Apostolic Vicariate of the Hawaiian Islands Apostolic Vicariate of the Hawaiian Islands The Apostolic Vicariate of the Hawaiian Islands was the jurisdiction of the prelate of the Catholic Church in the Hawaiian Islands, created in 1847 by the Holy See. In 1848, the phrase "Sandwich Islands" was dropped and replaced by "Hawaiian Islands." The first Vicar Apostolic of the Sandwich Islands (and the Hawaiian Islands) was Msgr. Louis Desiré Maigret, SS.CC. The Vicariate derives from the Prefecture Apostolic of the Sandwich Islands, established in 1825 and which was to become in 1833, a part of the larger territory under the ordinary jurisdiction of the Vicar Apostolic