South Brother (Chagos Bank)

Last updated
Sooty terns on South Brother Seabirds nesting on South Brother island in the Chagos Archipelago.jpg
Sooty terns on South Brother

South Brother, also known as Île du Sud, is a 23 ha coral island on the Great Chagos Bank atoll of the Chagos Archipelago in the British Indian Ocean Territory. It is one of the three islands in the Three Brothers group on the western side of the atoll, and forms part of the Chagos Archipelago strict nature reserve. It has been identified as an Important Bird Area by BirdLife International because of its significance as a breeding site for seabirds, including brown noddies (with 6100 breeding pairs recorded in a 2004 survey) and lesser noddies (7300 pairs). [1]

Coral Marine invertebrates of the class Anthozoa

Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically live in compact colonies of many identical individual polyps. Corals species include the important reef builders that inhabit tropical oceans and secrete calcium carbonate to form a hard skeleton.

Great Chagos Bank island group

The Great Chagos Bank, in the Chagos Archipelago, about 500 km (310 mi) south of the Maldives, is the largest atoll structure in the world, with a total area of 12,642 km2 (4,881 sq mi). The atoll is administered by the United Kingdom through the British Indian Ocean Territory (BIOT).

Atoll Ring-shaped coral reef, generally formed over a subsiding oceanic volcano, with a central lagoon and perhaps islands around the rim

An atoll, sometimes called a coral atoll, is a ring-shaped coral reef including a coral rim that encircles a lagoon partially or completely. There may be coral islands or cays on the rim. The coral of the atoll often sits atop the rim of an extinct seamount or volcano which has eroded or subsided partially beneath the water. The lagoon forms over the volcanic crater or caldera while the higher rim remains above water or at shallow depths that permit the coral to grow and form the reefs. For the atoll to persist, continued erosion or subsidence must be at a rate slow enough to permit reef growth upward and outward to replace the lost height.

Related Research Articles

Diego Garcia British atoll in the Indian Ocean

Diego Garcia is an atoll just south of the equator in the central Indian Ocean, and the largest of 60 small islands comprising the Chagos Archipelago. It was first discovered by Europeans and named by the Portuguese, settled by the French in the 1790s and transferred to British rule after the Napoleonic Wars. It was one of the "Dependencies" of the British Colony of Mauritius until the Chagos Islands were detached for inclusion in the newly created British Indian Ocean Territory (BIOT) in 1965.

Chagos Archipelago Archipelago in the Indian Ocean

The Chagos Archipelago or Chagos Islands are a group of seven atolls comprising more than 60 individual tropical islands in the Indian Ocean about 500 kilometres (310 mi) south of the Maldives archipelago. This chain of islands is the southernmost archipelago of the Chagos-Laccadive Ridge, a long submarine mountain range in the Indian Ocean.

Peros Banhos archipelago

Peros Banhos, Pedro dos Banhos or Baixos de Pêro dos Banhos in old maps, is a formerly inhabited atoll in the Chagos Archipelago of the British Indian Ocean Territory. Île Yeye, located at the northeastern corner of the atoll, is the island of the Chagos Archipelago that is closest to the Maldives.

Three Brothers, Chagos island group

The Three Brothers are a group of three small coral islands 20 kilometres east of Eagle Islands along the central western rim of the Great Chagos Bank, which is the world's largest coral atoll structure, located in the Chagos Archipelago.

Eagle Islands island group

Eagle Islands is a group of two islands in the Chagos Archipelago. They are located on the central-western rim of the Great Chagos Bank, which is the world's largest coral atoll structure.

Danger Island, Great Chagos Bank island

Danger Island is the westernmost and the southernmost island of the Great Chagos Bank, which is the world's largest coral atoll structure, located in the Chagos Archipelago in the Indian Ocean.

Egmont Islands Archipelago

The Egan Islands or Egan Atoll, also known as Six Iles, is an uninhabited atoll administered by the United Kingdom. They are one of the few emerged coral atolls that make up the Chagos Archipelago, British Indian Ocean Territory.

Nelsons Island island

Nelson Island or Nelsons Island or Legour Island is the northernmost and the easternmost island of the Great Chagos Bank, which is the world's largest coral atoll structure, located in the Chagos Archipelago in the Indian Ocean. The nearest neighbour is Île Boddam in the Salomon Islands.

Black noddy species of bird

The black noddy or white-capped noddy is a seabird from the family Laridae. It is a medium-sized species of tern with black plumage and a white cap. It closely resembles the lesser noddy with which it was at one time considered conspecific. The black noddy has slightly darker plumage and dark rather than pale lores.

Boatswain Bird Island island

Boatswain Bird Island, also spelt Boatswainbird Island, is a small island some 270 metres (300 yd) off the east coast of Ascension Island in the South Atlantic Ocean with an area of approximately 5.3 ha. It is administered from Georgetown on Ascension, which is part of Saint Helena, Ascension and Tristan da Cunha, an overseas territory of the United Kingdom. Boatswain Bird Island should not be confused with the nearby, much smaller, Boatswain Bird Rock, only about 10 by 5 metres in size, located 570 metres (620 yd) south-east of the island and 360 metres (390 yd) north-east of the coast of Ascension. The southern coast of the island has an impressive natural arch.

Pitti Uninhabited coral islet in India

Pitti, also known as Pakshipitti, is an uninhabited coral islet in the Union Territory of Lakshadweep, India.

Petite Ile Bois Mangue island in Seychelles

Petite Île Bois Mangue is a 9 ha island on the Peros Banhos Atoll in the Chagos Archipelago of the British Indian Ocean Territory. It is part of the Peros Banhos strict nature reserve and has been identified as an Important Bird Area by BirdLife International because of its significance as a breeding site for lesser noddies, of which 12,000 pairs were recorded in a 2004 survey.

Ile Parasol

Ile Parasol is an 8 ha island on the Peros Banhos Atoll in the Chagos Archipelago of the British Indian Ocean Territory. It is part of the Peros Banhos strict nature reserve and has been identified as an Important Bird Area by BirdLife International because of its significance as a breeding site for sooty terns, of which 14,000 pairs were recorded in a 2004 survey.

Ile Longue (Peros Banhos)

Ile Longue is a 26 ha island on the Peros Banhos Atoll in the Chagos Archipelago of the British Indian Ocean Territory. It is part of the Peros Banhos strict nature reserve and has been identified as an Important Bird Area by BirdLife International because of its significance as a breeding site for sooty terns, of which 32,000 pairs were recorded in a 2004 survey.

Sea Cow Island

Sea Cow Island, also known as Île Vache Marine, is a round 18 ha island on the Great Chagos Bank atoll of the Chagos Archipelago in the British Indian Ocean Territory. It was named after the dugongs that were once abundant in the area, although they have since become regionally extinct. It is the smaller of the two islands in the Eagle Islands group on the western side of the atoll and forms part of the Chagos Archipelago strict nature reserve. It has been identified as an Important Bird Area by BirdLife International because of its significance as a breeding site for brown noddies, of which 11,500 pairs were recorded in a 2004 survey.

North Brother (Chagos Bank)

North Brother, also known as Île du Nord, is a round 6 ha coral island on the Great Chagos Bank atoll of the Chagos Archipelago in the British Indian Ocean Territory. It is one of the three islands in the Three Brothers group on the western side of the atoll, and forms part of the Chagos Archipelago strict nature reserve. It has been identified as an Important Bird Area by BirdLife International because of its significance as a breeding site for 20,000 seabirds, notably Audubon's shearwaters of which 420 pairs were recorded in a 2004 survey.

Middle Brother (Chagos Bank) island in the British Indian Ocean Territory

Middle Brother, also known as Île du Milieu, is an 8-hectare coral island on the Great Chagos Bank atoll of the Chagos Archipelago in the British Indian Ocean Territory. It is one of the three islands in the Three Brothers group on the western side of the atoll, and forms part of the Chagos Archipelago strict nature reserve. It has been identified as an Important Bird Area by BirdLife International for its significance as a breeding site for seabirds, notably sooty terns, of which 12,500 pair were recorded in a 2004 survey.

The Chagos Marine Protected Area, located in the central Indian Ocean in the British Indian Ocean Territory of the United Kingdom, is one of the world's largest marine protected areas, and one of the largest protected areas of any type on Earth. It was established by the British government on 1 April 2010 as a massive, contiguous, no-take marine reserve, it encompasses 640,000 square kilometres (250,000 sq mi) of ocean waters, including roughly 70 small islands and seven atolls of the Chagos Archipelago.

African Banks

The African Banks are the uninhabited northernmost islands of the Amirante Islands, of the Outer Islands of the Republic of Seychelles, in the western Indian Ocean.

References

  1. "South Brother, Chagos Bank". Important Bird Areas factsheet. BirdLife International. 2012. Retrieved 2012-10-24.

Coordinates: 06°10′16″S71°32′27″E / 6.17111°S 71.54083°E / -6.17111; 71.54083

Geographic coordinate system Coordinate system

A geographic coordinate system is a coordinate system that enables every location on Earth to be specified by a set of numbers, letters or symbols. The coordinates are often chosen such that one of the numbers represents a vertical position and two or three of the numbers represent a horizontal position; alternatively, a geographic position may be expressed in a combined three-dimensional Cartesian vector. A common choice of coordinates is latitude, longitude and elevation. To specify a location on a plane requires a map projection.