Three atolls in Rennell and Bellona Province, Solomon Islands
The Indispensable Reefs are a chain of three large coral atolls in the Coral Sea. They are located about 50 km (30 mi) south of Rennell Island. The chain stretches over a length of 114 km (71 mi) and its average width is 18 km (11 mi).
The three atolls are steep-to and each encloses a large deep lagoon. They are separated by deep passages two to three km (1.2–1.9 mi) wide. The atolls of the Indispensable Reef are aligned in a NW-SE direction:[1]
North Reef is 18 km (11 mi) long, and up to 7 km (4.3 mi) wide. The rim of the atoll has two narrow openings in the north and northwest. The reef has a total area of 100 km2 (39 sq mi), including lagoon and reef flat. There are no islets.
Middle Reef is 51 km (32 mi) long. Little Nottingham Islet is a small islet located near the centre of the reef. Besides its main lagoon, Middle Reef has a separate smaller northern lagoon. The total area is about 300 km2 (120 sq mi).
South Reef is 21 km (13 mi) long and up to 8 km (5.0 mi) wide. It encloses a lagoon 18 to 35 metres (59 to 115 ft) deep. The total area exceeds 100 km2 (39 sq mi).
History
The ship Neptune struck Indispensable Reef on 3 August 1868, and was lost. The crew was rescued by the SS Boomerang.[citation needed]
During the Battle of the Coral Sea on 7 May 1942, two Japanese carrier attack planes B5N2 (EI-306 and probably EI-302) flying reconnaissance mission from the carrier Shokaku ditched on Indispensable Reef due to lack of fuel.[2]
In 1983, the Solomon Islands Government apprehended a vessel from Taiwan that had been poaching the giant clam stocks around Indispensable Reef.[3] Corals and endangered fish species are also being plundered for the aquarium trade.[citation needed]
^LUNDSTROM, John B. The First Team: Pacific Naval Air Combat from Pearl Harbor to Midway. Annapolis, Maryland : Naval Institute Press, 2005. ISBN1-59114-471-X. page 205
^Govan, H.; Nichols, P.V.; Tafea, H. (1988). "Giant clam resource investigations in Solomon Islands". In Copland, JW; Lucas, JS (eds.). Giant clams in Asia and the Pacific. ACIAR Monograph. pp. 54–57. Retrieved 3 July 2024.
Corals: "Solomon Islands"(PDF). World Atlas of Coral Reefs. 19 May 2003. pp. 330–333. Archived from the original(PDF) on 19 May 2003. Retrieved 6 June 2014.