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The Primeiras and Segundas Archipelago is a chain of 10 sparsely inhabited barrier islands and two
coral reef A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. Co ...
complexes situated in the
Indian Ocean The Indian Ocean is the third-largest of the world's five oceanic divisions, covering or ~19.8% of the water on Earth's surface. It is bounded by Asia to the north, Africa to the west and Australia to the east. To the south it is bounded by th ...
off the coast of
Mozambique Mozambique (), officially the Republic of Mozambique ( pt, Moçambique or , ; ny, Mozambiki; sw, Msumbiji; ts, Muzambhiki), is a country located in southeastern Africa bordered by the Indian Ocean to the east, Tanzania to the north, Malawi ...
and near the coastal city of Angoche. The islands lie in two groups along the western side of the
Mozambique Channel The Mozambique Channel (french: Canal du Mozambique, mg, Lakandranon'i Mozambika, pt, Canal de Moçambique) is an arm of the Indian Ocean located between the Southeast African countries of Madagascar and Mozambique. The channel is about long ...
.


Description

The islands lie in a string along Africa's continental shelf. The five Segundas islands are in the north, separated by a stretch of open water and reefs from the five islands of the Primeiras chain to the south. The eastern sides of the islands are fringed with coral reefs, composed mainly of soft corals, with hard corals at their southern edges. Beds of seagrass are situated between the islands and the mainland, which are important habitat for sea turtles and
dugong The dugong (; ''Dugong dugon'') is a marine mammal. It is one of four living species of the order Sirenia, which also includes three species of manatees. It is the only living representative of the once-diverse family Dugongidae; its closest m ...
s. The southern islands support Mozambique's largest nesting grounds for
green sea turtle The green sea turtle (''Chelonia mydas''), also known as the green turtle, black (sea) turtle or Pacific green turtle, is a species of large sea turtle of the family Cheloniidae. It is the only species in the genus ''Chelonia''. Its range exten ...
s, and hawksbill sea turtle also use the beaches. The archipelago also hosts the most important dugong population in the western Indian Ocean. Vegetation on these low islands includes
mangrove A mangrove is a shrub or tree that grows in coastal saline water, saline or brackish water. The term is also used for tropical coastal vegetation consisting of such species. Mangroves are taxonomically diverse, as a result of convergent evoluti ...
, grass and scrub. Offshore, they are more noted for the biodiversity of their spectacular coral reefs, which support an important fishery. Due to the lack of reliable sources of fresh water, habitation on the islands is sparse — mainly in support of fishing operations.Rodrigues, M.J.; Motta, H.; Whittington, M.W.; Schleyer, M. 2000. "Coral Reefs of Mozambique" in McClanahan, T. R.; Charles R. C. Sheppard; David O. Obura; eds. ''Coral Reefs of the Indian Ocean: Their Ecology and Conservation''. New York, New York: Oxford University Press, pp.


History

The European discovery of the archipelago came on 25 February 1498 during
Vasco da Gama Vasco da Gama, 1st Count of Vidigueira (; ; c. 1460s – 24 December 1524), was a Portuguese explorer and the first European to reach India by sea. His initial voyage to India by way of Cape of Good Hope (1497–1499) was the first to link E ...
's first expedition to India. The islands became an important stopping-off point for Portuguese trading fleets sailing for India and the Orient, which were often in need of emergency repairs after rounding the
Cape of Good Hope The Cape of Good Hope ( af, Kaap die Goeie Hoop ) ;''Kaap'' in isolation: pt, Cabo da Boa Esperança is a rocky headland on the Atlantic coast of the Cape Peninsula in South Africa. A common misconception is that the Cape of Good Hope is t ...
. The islands remained a colony of Portugal until Mozambican independence in 1975, at which time they became part of Mozambique.


Conservation efforts

The area has been threatened by
illegal fishing Illegal, unreported and unregulated fishing (IUU) is an issue around the world. Fishing industry observers believe IUU occurs in most fisheries, and accounts for up to 30% of total catches in some important fisheries. Illegal fishing takes pl ...
operations and impacts from unauthorized tourism. Cutting down of coastal mangrove has also increased erosion, with negative effects on marine life. The archipelago is currently the focus of joint conservation and development projects by CARE and the
World Wildlife Fund The World Wide Fund for Nature Inc. (WWF) is an international non-governmental organization founded in 1961 that works in the field of wilderness preservation and the reduction of human impact on the environment. It was formerly named the Wo ...
in cooperation with the government of Mozambique and local NGOs. These projects are aimed at preserving the environment and surrounding coral reef system, restoring fisheries, protecting breeding grounds for
sooty tern The sooty tern (''Onychoprion fuscatus'') is a seabird in the family Laridae. It is a bird of the tropical oceans, returning to land only to breed on islands throughout the equatorial zone. Taxonomy The sooty tern was described by Carl Linnaeu ...
s, dugongs and green sea turtles, and creating a better quality of life for the people of the region. The initial goal of the projects was the creation of a 17,000 km2 area to be protected as a marine reserve. This was realized in 2012 when Mozambique established Africa's largest protected marine zone surrounding the islands. A continuing goal is to increase awareness among local people of how their activities affect the larger environment and their own long-term security and prosperity. Moving towards more sustainable farming and fishing methods is also a focus of educational outreach to area communities.


References

{{coord, -17.089604, 39.120941, display=title Archipelagoes of Mozambique Mozambique Channel East African coral coast