The Rocas Atoll ( pt, Atol das Rocas ) is the only

atoll An atoll () is a ring-shaped island, including a coral rim that encircles a lagoon partially or completely. There may be coral islands or cays on the rim. Atolls are located in warm tropical or subtropical oceans and seas where corals can gro ...

in the South

Atlantic Ocean The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about . It covers approximately 20% of Earth's surface and about 29% of its water surface area. It is known to separate the " Old World" of Africa, Europe ...

. It belongs to the

Brazil Brazil ( pt, Brasil; ), officially the Federative Republic of Brazil (Portuguese: ), is the largest country in both South America and Latin America. At and with over 217 million people, Brazil is the world's fifth-largest country by area ...

ian

State State may refer to: Arts, entertainment, and media Literature * ''State Magazine'', a monthly magazine published by the U.S. Department of State * ''The State'' (newspaper), a daily newspaper in Columbia, South Carolina, United States * ''Our S ...

Rio Grande do Norte Rio Grande do Norte (, , ) is one of the states of Brazil. It is located in the northeastern region of the country, forming the northeasternmost tip of the South American continent. The name literally translates as "Great Northern River", re ...

. It is located approximately northeast of Natal and west of the

Fernando de Noronha Fernando de Noronha () is an archipelago in the Atlantic Ocean, part of the State of Pernambuco, Brazil, and located off the Brazilian coast. It consists of 21 islands and islets, extending over an area of . Only the eponymous main island is in ...

archipelago An archipelago ( ), sometimes called an island group or island chain, is a chain, cluster, or collection of islands, or sometimes a sea containing a small number of scattered islands. Examples of archipelagos include: the Indonesian Arch ...

. The atoll is of volcanic origin and coralline formation.

Description

The oval atoll is long and wide. The

lagoon A lagoon is a shallow body of water separated from a larger body of water by a narrow landform, such as reefs, barrier islands, barrier peninsulas, or isthmuses. Lagoons are commonly divided into '' coastal lagoons'' (or ''barrier lagoons ...

is up to deep and has an area of . The land area of the two islets (Cemitério Island, southwest and Farol Cay, northwest) is . Farol Cay accounts for almost two-thirds of the aggregate area. The highest point is a sand

dune A dune is a landform composed of wind- or water-driven sand. It typically takes the form of a mound, ridge, or hill. An area with dunes is called a dune system or a dune complex. A large dune complex is called a dune field, while broad, f ...

in the south of larger Farol Cay, with a height of . Both islets are overgrown with grasses, bushes and a few

palm trees Palm most commonly refers to: * Palm of the hand, the central region of the front of the hand * Palm plants, of family Arecaceae **List of Arecaceae genera * Several other plants known as "palm" Palm or Palms may also refer to: Music * Palm (ba ...

. The population consists of crabs, spiders, scorpions, sand fleas, beetles, large roaches, and many species of birds. There is a lighthouse of the

Brazilian Navy ) , colors= Blue and white , colors_label= Colors , march= " Cisne Branco" ( en, "White Swan") (same name as training ship '' Cisne Branco'' , mascot= , equipment= 1 multipurpose aircraft carrier7 submarines6 frigates2 corvettes4 amphibio ...

that has been in operation and maintained since the 1960s, at the Northern end of Farol Bay. In its vicinity is a derelict lighthouse from 1933. The atoll is a wildlife sanctuary, and in 2001 was designated by

UNESCO The United Nations Educational, Scientific and Cultural Organization is a List of specialized agencies of the United Nations, specialized agency of the United Nations (UN) aimed at promoting world peace and security through international coope ...

as a

World Heritage Site A World Heritage Site is a landmark or area with legal protection by an international convention administered by the United Nations Educational, Scientific and Cultural Organization (UNESCO). World Heritage Sites are designated by UNESCO for ...

because of its importance as a feeding ground for marine life. Numerous

turtle Turtles are an order of reptiles known as Testudines, characterized by a special shell developed mainly from their ribs. Modern turtles are divided into two major groups, the Pleurodira (side necked turtles) and Cryptodira (hidden necked t ...

shark Sharks are a group of elasmobranch fish characterized by a cartilaginous skeleton, five to seven gill slits on the sides of the head, and pectoral fins that are not fused to the head. Modern sharks are classified within the clade Selachi ...

dolphin A dolphin is an aquatic mammal within the infraorder Cetacea. Dolphin species belong to the families Delphinidae (the oceanic dolphins), Platanistidae (the Indian river dolphins), Iniidae (the New World river dolphins), Pontoporiidae (the b ...

s and

bird Birds are a group of warm-blooded vertebrates constituting the class Aves (), characterised by feathers, toothless beaked jaws, the laying of hard-shelled eggs, a high metabolic rate, a four-chambered heart, and a strong yet lightweig ...

s live in the area. The atoll consists mainly of

coral Corals are marine invertebrates within the class Anthozoa of the phylum Cnidaria. They typically form compact colonies of many identical individual polyps. Coral species include the important reef builders that inhabit tropical oceans and se ...

and red

algae Algae (; singular alga ) is an informal term for a large and diverse group of photosynthetic eukaryotic organisms. It is a polyphyletic grouping that includes species from multiple distinct clades. Included organisms range from unicellular micr ...

. The coral ring is almost closed, with a wide channel on the north side and a much narrower channel on the west side. The atoll and surrounding waters are contained in the Atol das Rocas Biological Reserve. The reserve it is currently used solely for

scientific Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for ...

research. Due to their remote location, the islands remain largely undisturbed by human activities. On the other hand, the remoteness also limits researchers' access to the islands and few studies have been developed on this

. The entomological

fauna Fauna is all of the animal life present in a particular region or time. The corresponding term for plants is '' flora'', and for fungi, it is '' funga''. Flora, fauna, funga and other forms of life are collectively referred to as '' biota''. ...

from Atol das Rocas have been recorded.

In popular culture

The atoll was the site of a missile attack on a Cobra satellite communications tracking station and robotics storage center, in the '' G.I. Joe'' comic title from

Marvel Comics Marvel Comics is an American comic book publisher and the flagship property of Marvel Entertainment, a divsion of The Walt Disney Company since September 1, 2009. Evolving from Timely Comics in 1939, ''Magazine Management/Atlas Comics'' in ...

. Trimpe, Herb (1991). "Double Trouble", ''G.I. Joe A Real American Hero'', Vol. 1, No. 119.

References

External links

Sigep - Brazilian Commission of Geological and Palaeobiological Sites
Description with maps and pictures -
UNESCO - World Heritage

on Globo.com {{Authority control Atolls of Brazil Islands of the South Atlantic Ocean Landforms of Rio Grande do Norte Environment of Rio Grande do Norte Uninhabited islands of Brazil World Heritage Sites in Brazil

Description

In popular culture

See also

References

External links