4. Atoll:An atoll is a circular coral reef that has a lagoon in the middle. Atolls take millions of years to form. Scientists have theorized that atolls are fringing reefs that form around small and low-elevation islands. Over time, these islands gradually erode below the surface while the ...
Seychelles: Indian Ocean Islands The islands were formed either on granite or are the tops of coral reefs of the Mascarenes. Most of the islands are granitic. The granitic islands include Mahé, Praslin, La Digue and Silhouette. There are two UNESCO world heritage sites on the islands: Valle...
Fringing reefsform borders along shorelines and grow toward the sea from the shore. Barrier reefs form parallel to shore but are separated from it by a lagoon. Atollsare reefs that continue to grow upward after the island they surround has sunk. Other types of reefs are bank reefs, which h...
Felidhu is the most sparsely populated atoll with about 1,500 people on five islands. There areno rivers in the Maldives and no hills, the highest points of the Maldives islands are about 15 ft above sea level. There are only two small freshwater lake on Foammulaku atoll. The northernmost...
They live deep underwater so as to burrow into the floor or find shelter in coral reefs, rock fissures, and muddy or pebbly water. Fish of the family Anguillidae typically inhabit freshwater. Predators and Prey Humans are the biggest threat to most types of eel. ©Valentin Ayupov/...
There are about 129 species of butterfly tropical marine fish but many are found in the reefs of the Atlantic, Indian, and Pacific oceans. Butterfly fish look a lot like angelfishes but they don’t have the preopercle spines that gill covers. Some members of the Henniochus look a ...
Transportation: Railways:0 km.Roadways:total: 670 km (2011 est.).Waterways:small network of canals, totaling 5 km, in Line Islands.Ports and terminals:Betio (Tarawa Atoll), Canton Island, English Harbor.Airports:19. International disputes:none. ...
Taka Bonerate Islands are known for their pristine reefs and schools of barracudas, sharks and sea turtles. The Tanka Bonerate Marine Park includes the Takabonerate atoll islands, and famous sites here are Pasir Panjang, Kaledupa and Hoga. The region was given national protection status in 199...
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The Seychelles boasts two UNESCO World Heritage Sites, the First beingVallée de Mai on Praslinwhere the Coco-de-Mer nuts grow on ancient palms. This nut is the world’s largest and is extremely rare. The second site isAldabrawhich is the world’s largest raised coral atoll and the home...