Under The Water in Fiji

Fiji, officially the Republic of Fiji, is an island country inMelanesia in the South Pacific Ocean about 1,100 nautical miles (2,000 km; 1,300 mi) northeast of New Zealand's North Island. Its closest neighbours are Vanuatu to the west, France'sNew Caledonia to the southwest, New Zealand's Kermadec to the southeast, Tonga to the east, the Samoas and France's Wallis and Futuna to the northeast, and Tuvalu to the north.

The country comprises an archipelago of more than 332 islands, of which 110 are permanently inhabited, and more than 500 islets, amounting to a total land area of circa 18,300 square kilometres (7,100 sq mi). The farthest island is Onu-i-Lau. The two major islands, Viti Levu and Vanua Levu, account for 87% of the population of almost 860,000. The capital and largest city, Suva, is on Viti Levu. About three-quarters of Fijians live on Viti Levu's coasts, either in Suva or in smaller urban centres like Nadi (tourism) or Lautoka (sugar cane industry). Viti Levu's interior is sparsely inhabited due to its terrain.

The majority of Fiji's islands were formed through volcanic activity starting around 150 million years ago. Today, some geothermal activity still occurs on the islands of Vanua Levu andTaveuni. Fiji has been inhabited since the second millennium BC. In the 17th and 18th centuries, the Dutch and the British explored Fiji, which was a Crown Colony until 1970, this administration lasting almost a century. During World War II, thousands of Fijians volunteered to aid in Allied efforts via their attachment to the New Zealand and Australian army units. The Republic of Fiji Military Forces (RFMF) consist of land and naval units.

Fiji has one of the most developed economies in the Pacific island realm due to an abundance of forest, mineral, and fish resources. Today, the main sources of foreign exchange are its tourist industry and sugar exports. The country's currency is the Fijian dollar.

Following a coup in 2006, Ratu Epeli Nailatikau became Fiji's president after a high court ruled that the military leadership was unlawfully appointed. Fiji's local government, in the form of city and town councils, is supervised by the Ministry of Local Government and Urban Development.

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Blue Starfish at Coral Coast, Fiji

Linckia laevigata (sometimes called the "blue Linckia" or blue star) is a species of sea star (commonly known as a starfish) in the shallow waters of tropical Indo-Pacific (a biogeographicregion of the Earth's seas, comprising the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the seas connecting the two in the general area of Indonesia). The variation ("polymorphism", in this case, a "color morph") most commonly found is pure, dark, or light blue, although observers find the aqua, purple, or orange variation throughout the ocean. These sea stars may grow up to 30 cm in diameter, with rounded tips at each of the arms; some individuals may bear lighter or darker spots along each of their arms. Individual specimens are typically firm in texture, possessing the slightly tubular, elongated arms common to most of other members of the family Ophidiasteridae, and usually possessing short, yellowish tube feet. An inhabitant of coral reefs and sea grass beds, this species is relatively common and is typically found in sparse density throughout its range. Blue stars live subtidally, or sometimes intertidally, on fine (sand) or hard substrata and move relatively slow (mean locomoation rate of 8.1 cm/min).

The genus Linckia, as is true of other species of starfish, is recognized by scientists as being possessed of remarkable regenerative capabilities, and endowed with powers of defensiveautotomy against predators: Although not yet documented, L. laevigata may be able to reproduce asexually, as does the related species Linckia multifora (another denizen of tropical seas, but of differing coloration, i.e., pink or reddish mottled with white and yellow, which has been observed reproducing asexually in captivity). Linckia multifora produces 'comets', or separated arms, from the mother individual; these offspring proceed to grow four tiny stubs of arms ready for growth to maturity. L. laevigata is apparently not an exception to this behavior, as many individuals observed in nature are missing arms or, on occasion, in the comet form.

Some species of other reef inhabitants prey on this species of sea star. Various pufferfishes, Charonia species (triton shells), harlequin shrimp, and even some sea anemones have been observed to eat whole or parts of the sea stars. The Blue Linckia is also prone to parasitization by a species of the parasitic gastropod Thyca crystallina. Commensalassociations sometimes play part on this echinoderm's life; animals such as Periclimenes shrimp are sometimes found commensally on the oral or aboral surface of the animal, picking up mucus and detritus.

This sea star is fairly popular with marine aquarium hobbyists, where it requires a proper, slow acclimatization before entering the tank system, and an adequate food source similar to that found in its natural habitat. Generally thought of as a detritivore, many sources maintain that this species will indefinitely graze throughout the aquarium for organic films or sedentary, low-growing organisms such as sponges and algae. Depending on how abundant the food source is, as well as such factors as the conditions of shipping, acclimatization, and water quality, this species has been kept in captivity with variable success. This species has yet to be bred in captivity for sustainable harvest.

This species has long been a staple of the sea-shell trade, which involves marketing dried sea star tests (skeletons) for curios or decoration. Some regions of their habitat have seen significant population decline due to the continuous harvesting by the sea-shell and tourism industries.

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Blue Hole, Vanuatu, Fiji

A blue hole is a cave (inland) or underwater sinkhole. They are also called vertical caves. There are many different blue holes located around the world, typically in low-lying coastal regions. The best known examples can be found in Belize, the Bahamas, Guam, Australia (in the Great Barrier Reef), and Egypt (in the Red Sea).

Blue holes are roughly circular, steep-walled depressions, and so named for the dramatic contrast between the dark blue, deep waters of their depths and the lighter blue of the shallows around them. Their water circulation is poor, and they are commonly anoxic below a certain depth; this environment is unfavorable for most sea life, but nonetheless can support large numbers of bacteria. The deep blue color is caused by the high transparency of water and bright white carbonate sand. Blue light is the most enduring part of the spectrum; other parts of the spectrum—red, yellow, and finally green—are absorbed during their path through water, blue light manages to reach the white sand and return upon reflection.

The deepest blue hole in the world—at 202 metres (663 ft)—is Dean's Blue Hole, located in a bay west of Clarence Town on Long Island, Bahamas. Other blue holes are about half that depth at around 100–120 metres (330–390 ft). The diameter of the top entrance ranges typically from 25–35 metres (82–115 ft) (Dean's Blue Hole) to 300 metres (980 ft) (Great Blue Hole in Belize).

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