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
History of Solomon Islands Sikaiana, then known as the Stewart Islands, was annexed to the Hawaiian Kingdom in 1856. Hawai'i did not formalize the annexation, and the United States refused to recognize Hawaiian sovereignty over Sikaiana when the United States annexed Hawai'i in 1898. Missionary activity then started at the mid 19th century and European colonial ambitions led to the establishment of a German Protectorate over the North Solomon Islands, which covered parts of what is now Solomon Islands, following an Anglo-German Treaty of 1886. A British Solomon Islands Protectorate over the southern islands was proclaimed in June 1893. German interests were transferred to