Washington Island (Kiribati)
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Teraina (written also Teeraina, also known as Washington Island – these two names are constitutional) is a coral atoll in the central Pacific Ocean and part of the
Northern Line Islands The Line Islands, Teraina Islands or Equatorial Islands (in Gilbertese language, Gilbertese, ''Aono Raina'') are a chain of 11 atolls (with partly or fully enclosed lagoons) and coral islands (with a surrounding reef) in the central Pacific Oce ...
which belong to Kiribati. Obsolete names of Teraina are New Marquesas, Prospect Island, and New York Island. The island is located approximately 4.71° North latitude and 160.76° West longitude. Teraina differs from most other atolls in the world in that it has a large
freshwater Fresh water or freshwater is any naturally occurring liquid or frozen water containing low concentrations of dissolved salts and other total dissolved solids. Although the term specifically excludes seawater and brackish water, it does include ...
lake (Washington Lake), an open lens, concealed within its luxuriant coconut palm forest; this is the only permanent freshwater lake in the whole of Kiribati.Teeb'aki ''in'' Scott (1993) Measuring about NW-SE and SW-NE, it has a land area of about ; its circumference is about . The island is generally low-lying, with a maximum elevation
ASL American Sign Language (ASL) is a natural language that serves as the predominant sign language of Deaf communities in the United States of America and most of Anglophone Canada. ASL is a complete and organized visual language that is express ...
of about , while most of the island rises some high; trees in the dense inland forest grow to several times this height however. At the western end of the island is the
capital Capital may refer to: Common uses * Capital city, a municipality of primary status ** List of national capital cities * Capital letter, an upper-case letter Economics and social sciences * Capital (economics), the durable produced goods used f ...
,
Tangkore Tangkore, alternatively spelled Tengkore, is the capital village and largest settlement on the island of Teraina, Kiribati Kiribati (), officially the Republic of Kiribati ( gil, ibaberikiKiribati), making it the least-populated of the permanently inhabited
Northern Line Islands The Line Islands, Teraina Islands or Equatorial Islands (in Gilbertese language, Gilbertese, ''Aono Raina'') are a chain of 11 atolls (with partly or fully enclosed lagoons) and coral islands (with a surrounding reef) in the central Pacific Oce ...
. However, population density (177 per km2) is three times as high as on Tabuaeran and vastly more than on the much larger (300-plus km2) Kiritimati with its about 15 people/km2. There are two dirt roads around the island's perimeter – an outer (Beach Road) and an inner one (Ring Road). Transport inland is done by boat on artificial canals, rather uniquely for a Pacific island. A navigation light tower and two radio masts stand near Tangkore.Resture (2004) What cannot be produced locally is shipped in about twice a year; there is also some minor inter-island traffic by ship or boat. The old landing was at the western tip, but this was dangerous due to being exposed to surf breaking on the reef flats; it has been more recently replaced by a new and more easily accessible landing south of
Tangkore Tangkore, alternatively spelled Tengkore, is the capital village and largest settlement on the island of Teraina, Kiribati Kiribati (), officially the Republic of Kiribati ( gil, ibaberikiKiribati),airstrip of some length exists near Kaaitara. It may become temporarily unusable after heavy rains.


History

Permanent early human occupation of Teraina is disputed. Although there were no occupants on the island at the time of European discovery, a number of human made sites have been identified on the island including dry stacked stone architecture. Additionally, ethnographic data from the Cook Islands and the Tuamotu Islands points to Polynesian knowledge of the island. Perhaps the most compelling discovery on Teraina is the recovery of an intact voyaging canoe. Although archaeological sites are known to exist on the island, the general lack of fresh water makes long-term human habitation unlikely though more work is needed in establishing the timeline of human use. Teraina was sighted on 12 June 1798 by the
American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...
whaling captain Edmund Fanning of ''Betsy''; he named the island for
George Washington George Washington (February 22, 1732, 1799) was an American military officer, statesman, and Founding Father who served as the first president of the United States from 1789 to 1797. Appointed by the Continental Congress as commander of th ...
but did not attempt to land. The first exploration of the island arrived later with captain Adam Johann von Krusenstern, on a Russian expedition (called then New Marquesas). The island was subsequently claimed under the Guano Islands Act of 1856 for the United States under the name "Prospect Island".
Guano Guano (Spanish from qu, wanu) is the accumulated excrement of seabirds or bats. As a manure, guano is a highly effective fertilizer due to the high content of nitrogen, phosphate, and potassium, all key nutrients essential for plant growth. G ...
was never mined or exported to any notable extent, however; the
humid Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depen ...
climate prevents the formation of substantial deposits. It was occupied by Captain John English and people from Manihiki in about 1860. Later William Greig who began planting the island with coconut trees. Eventually the sons of Greig owned the plantation with Father Emmanuel Rougier until he sold his interest to the Fanning Island Limited, and started a coconut plantation on Christmas Island. Fanning Island was annexed by the British by Commander Nichols of on May 29, 1889. It became a part of the
Gilbert and Ellice Islands The Gilbert and Ellice Islands (GEIC as a colony) in the Pacific Ocean were part of the British Empire from 1892 to 1976. They were a protectorate from 1892 to 12 January 1916, and then a colony until 1 January 1976. The history of the colony w ...
colony in 1916. The name of the island was changed to Teraina in 1979 when Kiribati gained independence. The major export of Teraina is copra, the dried meat of the
coconut The coconut tree (''Cocos nucifera'') is a member of the palm tree family ( Arecaceae) and the only living species of the genus ''Cocos''. The term "coconut" (or the archaic "cocoanut") can refer to the whole coconut palm, the seed, or the ...
. The Burns Philip Copra Company operated plantations on the island after the Second World War. At various times, contract laborers were brought from Manihiki, Tahiti, and the
Gilbert Islands The Gilbert Islands ( gil, Tungaru;Reilly Ridgell. ''Pacific Nations and Territories: The Islands of Micronesia, Melanesia, and Polynesia.'' 3rd. Ed. Honolulu: Bess Press, 1995. p. 95. formerly Kingsmill or King's-Mill IslandsVery often, this n ...
to work the coconut plantations. More recently, settlement from Gilbert group has been encouraged during the re-settlement schemes of 1989–1995. Washington Island Post Office opened on 1 February 1921, closed around 1923, reopened in 1924, closed in 1948 and reopened again around August 1979.


Political geography

The population of Teraina lives in nine villages. It is increasing; from 416 in 1978, it had risen to 936 in 1990 and had exceeded 1,000 by 2000. The population of Teraina in the 2010 census was 1,690. Compared to the 2005 population of 1,155 and the 2000 population of 1,087, the population is growing very rapidly. The population of Teraina grew by 535 people between 2005 and 2010, an annual population growth of 7.9%. All villages are listed in the following table, with the preliminary census results of 2005, counterclockwise around the perimeter of the atoll, starting in the northeast with Abaiang and ending in the southeast with Onauea. Tangkore is near the westernmost point of Teraina: Teraina has an unusual age structure; nearly half the population (44%) is aged under 15 and one in five people (19%) are children under five years. There are more males than females in almost all age groups except the elderly.


Physical geography

As regards its physical characteristics, this is one of the most interesting islands in the Pacific. It is a
raised coral atoll A raised coral atoll or uplifted coral atoll is an atoll that has been lifted high enough above sea level by tectonic forces to protect it from scouring by storms and enable soils and diverse – often endemic – species of flora and fauna to de ...
, but it has not filled up with sand and soil, yet still retains a significant remnant of the former lagoon. The lake, however, is only just barely perceptibly brackish, as its only significant source is the plentiful rain. The lake is only a few feet (around 1–2 meters) deep for the most part, though the supposed maximum depth is nearly . Being only about away from the
equator The equator is a circle of latitude, about in circumference, that divides Earth into the Northern and Southern hemispheres. It is an imaginary line located at 0 degrees latitude, halfway between the North and South poles. The term can als ...
, Teeraina is inside the ITCZ; its climate is thus extremely
humid Humidity is the concentration of water vapor present in the air. Water vapor, the gaseous state of water, is generally invisible to the human eye. Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depen ...
, making it one of the "wet" Pacific islands. The western inland is made up by peat
bog A bog or bogland is a wetland that accumulates peat as a deposit of dead plant materials often mosses, typically sphagnum moss. It is one of the four main types of wetlands. Other names for bogs include mire, mosses, quagmire, and muskeg; a ...
, which is still flooded after heavy rains,Streets (1877) and constitutes infilled former lakebed. It is not clear in what way the western lake or lakes – there are now 2 main areas of bogland, which may correspond to former lake basins – were connected to the remaining waterbody. One bog is immediately adjacent to the lake's western end, the other is halfway between that and the island's northwest tip. Canals have been cut into the bogs, for punting, rowing and motor boats transporting people and produce. There is some removal of peat and sediments to stem the lake's ongoing infilling; in addition it seems that in recent times, the lake's level is slowly rising again so that the eastern bog's area has receded somewhat. The peat reaches thicknesses of about , much of which is located above sea level. It is also not precisely known where the last connection of the inland waters to the ocean were, and when they closed. The southeast end is more likely however, as the island is in the Equatorial Counter Current which runs west to east, and drifting coral and other reef-builder larvae as well as flotsam would therefore predominantly land at the island's western side. Thus, it is to be expected that land build up faster there. This also agrees with the eastern location of the remaining lake. In any case, the canal network now opens to the sea south of Tangkore, and there is a direct connection from the lake to the ocean at Teraina's eastern tip.


Ecology

Ecologically, Teraina is also highly interesting, for several reasons. First, as is readily apparent from its peculiar geographical and geological features, it possesses a combination of ecosystems that is quite unique in the entire world. Second, it holds the world's largest population of a rare bird species though it is over from that bird's original home. Furthermore, it was until fairly recently home to some enigmatic
dabbling duck The Anatinae are a subfamily of the family Anatidae ( swans, geese and ducks). Its surviving members are the dabbling ducks, which feed mainly at the surface rather than by diving. The other members of the Anatinae are the extinct moa-nalo, a yo ...
s which are now
extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
. Last, the island's biodiversity seems to prove quite conclusively that, probably by about 1200 AD or so, the island was temporarily inhabited by a significant number of humans. At present, there is no formal protection for the islands' ecosystems or species, but it has been suggested to legally protect key habitat, namely the boglands. Though it is globally endangered, the Rimatara lorikeet (''Vini kuhlii'') does not appear to be in need of formal protection;BLI (2007) it actually benefits from human land use change and the feral cats. The former provides the birds with more habitat, while the cats have so far managed to keep Teraina completely free of
black rat The black rat (''Rattus rattus''), also known as the roof rat, ship rat, or house rat, is a common long-tailed rodent of the stereotypical rat genus ''Rattus'', in the subfamily Murinae. It likely originated in the Indian subcontinent, but is n ...
s (''Rattus rattus'') which due to their tree-climbing habits would seriously jeopardize the species' existence, should they become established in numbers. Given the negative experience e.g. from
Rennell Island Rennell Island, locally known as Mugaba, is the main island of two inhabited islands that make up the Rennell and Bellona Province in the nation state of Solomon Islands. Rennell Island has a land area of that is about long and wide. It is th ...
, maintenance of a vigorous tilapia fishery would seem to be advisable. These fish certainly represent a valuable source of protein on Teraina, and in fact were originally introduced for that purpose.


Flora

Over 30 species of flowering plants are known from the island, but most seem to be not originally native. '' Cocos nucifera'', the coconut palm, is the most conspicuous tree on Teraina. It is found planted, but also constitutes one of the dominant forest trees. The palms occur in wet forest around the bogs, mixed with ''
Pandanus ''Pandanus'' is a genus of monocots with some 750 accepted species. They are palm-like, dioecious trees and shrubs native to the Old World tropics and subtropics. The greatest number of species are found in Madagascar and Malaysia. Common names ...
'' (screwpine), and an undergrowth dominated by the ferns ''
Asplenium pacificum ''Asplenium'' is a genus of about 700 species of ferns, often treated as the only genus in the family (biology), family Aspleniaceae, though other authors consider ''Hymenasplenium'' separate, based on molecular phylogenetic analysis of DNA seque ...
'' and ''
Phymatosorus scolopendria ''Microsorum scolopendria'', synonym ''Phymatosorus scolopendria'', commonly called monarch fern, musk fern, maile-scented fern, breadfruit fern, or wart fern is a species of fern within the family Polypodiaceae. This fern grows in the wild in ...
''. In more elevated places near the beach, '' Pisonia'' (catchbird tree) atoll forest is found, though Teraina has not that much of this ubiquitous Pacific ecosystem for its size. The most conspicuous plants of the boglands are the arum '' Cyrtosperma merkusii'' and the giant bulrush (''
Schoenoplectus californicus ''Schoeneoplectus californicus'' is a species of sedge known by the common names California bulrush, southern bulrush and giant bulrush. It is also sometimes called "tule", but the closely related ''Schoenoplectus acutus'' is the species most oft ...
''). Among the local crops,
sugar-apple The sugar-apple or sweet-sop is the edible fruit of ''Annona squamosa'', the most widely grown species of '' Annona'' and a native of tropical climate in the Americas and West Indies. Spanish traders aboard the Manila galleons docking in the ...
(''Annona squamosa''),
breadfruit Breadfruit (''Artocarpus altilis'') is a species of flowering tree in the mulberry and jackfruit family (Moraceae) believed to be a domesticated descendant of ''Artocarpus camansi'' originating in New Guinea, the Maluku Islands, and the Philippi ...
(''Artocarpus altilis''),
papaya The papaya (, ), papaw, () or pawpaw () is the plant species ''Carica papaya'', one of the 21 accepted species in the genus ''Carica'' of the family Caricaceae. It was first domesticated in Mesoamerica, within modern-day southern Mexico and ...
(''Carica papaya''),
banana A banana is an elongated, edible fruit – botanically a berry – produced by several kinds of large herbaceous flowering plants in the genus ''Musa''. In some countries, bananas used for cooking may be called "plantains", distinguis ...
s (''Musa'' cultivars, including
Fe'i banana Fe'i bananas (also spelt Fehi or Féi) are cultivated plants in the genus ''Musa'', used mainly for their fruit. Unlike most other cultivated bananas they are diploids of the AA-type. They are very distinct in appearance and origin from the ma ...
s) and
apple guava ''Psidium guajava'', the common guava, yellow guava, lemon guava, or apple guava is an evergreen shrub or small tree native to the Caribbean, Central America and South America. It is easily pollinated by insects; when cultivated, it is pollina ...
(''Psidium guajava'') are the most significant, apart from the coconuts. Frangipani (''Plumeria'') and hibiscus are popular as ornamental plants.


Birds

Though numerous seabirds nest on Teraina, for many such species the limited habitat makes it a less important rookery than other, similar-sized raised atolls. About 10 species of seabirds breed here, most significantly tree-nesters like the
little white tern The white tern or common white tern (''Gygis alba'') is a small seabird found across the tropical oceans of the world. It is sometimes known as the fairy tern, although this name is potentially confusing as it is also the common name of '' Sternu ...
(''Gygis microrhyncha'') and the
red-footed booby The red-footed booby (''Sula sula'') is a large seabird of the booby family, Sulidae. Adults always have red feet, but the colour of the plumage varies. They are powerful and agile fliers, but they are clumsy in takeoffs and landings. They are f ...
(''Sula sula''). The
eastern reef egret The Pacific reef heron (''Egretta sacra''), also known as the eastern reef heron or eastern reef egret, is a species of heron found throughout southern Asia and Oceania. It occurs in two colour morphs with either slaty grey or pure white plumag ...
(''Egretta sacra''), widespread throughout the region, can also be found on Teraina. Among migratory birds, the ruddy turnstone (''Arenaria interpres''), sanderling (''Calidris alba''), bristle-thighed curlew (''Numenius tahitiensis''), Pacific golden plover (''Pluvialis fulva''), and grey-tailed (''Tringa brevipes'') and
wandering tattler The wandering tattler (''Tringa incana''; formerly ''Heteroscelus incanus'': Pereira & Baker, 2005; Banks ''et al.'', 2006), is a medium-sized wading bird. It is similar in appearance to the closely related gray-tailed tattler, ''T. brevipes''. ...
s (''T. incana'') use Teraina as stopover location or winter quarters on a regular basis. Other shorebirds, gulls, and occasionally ducks of
North America North America is a continent in the Northern Hemisphere and almost entirely within the Western Hemisphere. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the southeast by South America and the Car ...
n and East Asian species may occur as vagrants. In historic times, two species of landbirds and one
subspecies In biological classification, subspecies is a rank below species, used for populations that live in different areas and vary in size, shape, or other physical characteristics (morphology), but that can successfully interbreed. Not all species ...
of duck have been recorded. The latter,
Coues's gadwall Coues's gadwall (''Mareca strepera couesi'') or the Washington Island gadwall, is an extinct dabbling duck which is only known by two immature specimens from the Pacific island of Teraina,formerly known as Washington Island — Luther mentions a ...
(''Anas strepera couesi''), was the only distinct subspecies of the widespread
gadwall The gadwall (''Mareca strepera'') is a common and widespread dabbling duck in the family Anatidae. Taxonomy The gadwall was first described by Carl Linnaeus in his landmark 1758 10th edition of ''Systema Naturae''. DNA studies have shown that ...
. It is surrounded by considerable mystery, mainly as regards the origin of the population, the age and therefore validity of the subspecies (it is sometimes disputed to be significantly distinct), and the causes and date of its disappearance. Only two specimens are known – a couple that is not fully mature, and therefore only limited information can be gleaned from it. What is certain is that there was a duck population of some size in the mid-1870s, while in 1900 all were gone. The
bokikokiko The bokikokiko, Kiritimati reed warbler or Christmas Island warbler (''Acrocephalus aequinoctialis'') is a species of warbler in the family Acrocephalidae. It is found only on Kiritimati and Washington Island (Kiribati). The population size of ...
(''Acrocephalus aequinoctialis'') is Kiribati's endemic reed-warbler. This small greyish passerine is well-known, due to its bold and inquisitive habits, and its song, a series of alternating higher and lower squeaks after which it is named. The Rimitara lorikeet (''Vini kuhlii'') is present with about 1,000 birds. It is a tiny parrot with brilliant plumage and an endearing and highly social behavior, owing to which they were known to late 19th century settlers as "love-birds". This species was originally native to the Austral and Cook Islands in SE Polynesia, a long distance to the south. They were treasured by the natives of the Society Islands and were an item of high value in inter-island trade; these birds were kept as pets, and in addition their feathers were used in crafts and art. In any case, there is considerable evidence from
Ancient Hawaiʻi Ancient Hawaii is the period of Hawaiian history preceding the unification in 1810 of the Kingdom of Hawaii by Kamehameha the Great. Traditionally, researchers estimated the first settlement of the Hawaiian islands as having occurred sporadicall ...
that Polynesian seafarers travelled between southeastern Polynesia and Hawaiʻi with some regularity, perhaps as early as 400 AD, but certainly by about 1200 AD. Since it is almost inconceivable – given the prevailing winds, ocean currents, known trade routes, and the difficulty with which these birds can be kept alive during voyages – that ''Vini kuhlii'' was transported from the Austral or Cook Islands to the
Gilbert Islands The Gilbert Islands ( gil, Tungaru;Reilly Ridgell. ''Pacific Nations and Territories: The Islands of Micronesia, Melanesia, and Polynesia.'' 3rd. Ed. Honolulu: Bess Press, 1995. p. 95. formerly Kingsmill or King's-Mill IslandsVery often, this n ...
and from there to Teraina, the presence of the birds there is best explained by them having been introduced by SE Polynesian travelers. Today, the species is
extinct Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and ...
on many islands on which it formerly occurred, while the Teraina population, considered crucially important for its survival, contains some 60% of the remaining global wild population. Ironically, the reason for the Rimitara lorikeet thriving on Teraina is the replacement of native forest with coconut plantations; these birds feed mainly on the
nectar Nectar is a sugar-rich liquid produced by plants in glands called nectaries or nectarines, either within the flowers with which it attracts pollinating animals, or by extrafloral nectaries, which provide a nutrient source to animal mutualists ...
of coconut palm flowers and nest in old coconut shells or husks. As it thus seems clear that there was prehistoric human activity of some degree on Teraina, it is also likely that birds became extinct consequently, like on all such Outer Pacific islands for which research has been conducted. David Steadman in his comprehensive review lists several such hypothetical taxa for Kiribati as a whole. For Teraina specifically, considering the habitat and what birds still exist, one or more rails (''
Gallirallus ''Gallirallus'' is a genus of rails that live in the Australasian-Pacific region. The genus is characterised by an ability to colonise relatively small and isolated islands and thereafter to evolve flightless forms, many of which became extinct ...
'' and/or ''
Porzana ''Porzana'' is a genus of birds in the crake and rail family, Rallidae. Its scientific name is derived from Venetian terms for small rails. The spotted crake (''P. porzana'') is the type species. Taxonomy The genus ''Porzana'' was erected by th ...
''), an imperial- pigeon (''
Ducula ''Ducula'' is a genus of the pigeon family Columbidae, collectively known as imperial pigeons. They are large to very large pigeons with a heavy build and medium to long tails. They are arboreal, feed mainly on fruit and are closely related to th ...
''), and maybe a '' Todiramphus'' kingfisher or an '' Aplonis'' starling make the most likely candidates for birds gone extinct prehistorically. It must be considered, however, that given the lack of fieldwork it is not quite clear what effect changing sea levels would have had on Teraina. If the sea level were only half a meter (c. 2 ft) higher it is certainly possible that the forest and freshwater lake would be replaced by shrubland or dunes and a brackish lagoon. That notwithstanding, it is well possible that a
Polynesian sandpiper The Polynesian sandpipers form the genus ''Prosobonia''. They are small wading birds confined to remote Pacific islands of French Polynesia. Only one species is now extant, and it is rare and little known. This bird is sometimes separated in th ...
related to or identical with the Christmas sandpiper from Kiritimati once lived on Teraina.Steadman (2006)


Other fauna

As with most outer Pacific islands, there are no native land
mammal Mammals () are a group of vertebrate animals constituting the class Mammalia (), characterized by the presence of mammary glands which in females produce milk for feeding (nursing) their young, a neocortex (a region of the brain), fur or ...
s. Polynesian rats ('' Rattus exulans'') are present on Teraina, apparently since prehistoric times. They may have arrived with flotsam after storms further west, or accidentally or deliberately (as food) been introduced by prehistoric seafarers. Their present-day impact on the bird population is minor, but if rails were once present on Teraina, the rats had probably some role in these birds' disappearance, and maybe in that of any other birds gone extinct in prehistoric times too. If a Polynesian sandpiper once bred on Teraina, it is almost certainly those rats that are responsible for these birds' disappearance; only a single taxon of ''Prosobonia'' remains today, precariously holding its own on atolls that are devoid of any rat species. Feral dogs, cats and pigs occur in varying numbers on Teraina; the cats especially are responsible for some decline in the number of ground-nesting seabirds. On the other hand, as noted above, the cats have thus far kept the rat population at bay. Lacustrine species reported from Teraina include fish. and some unspecified "
shrimp Shrimp are crustaceans (a form of shellfish) with elongated bodies and a primarily swimming mode of locomotion – most commonly Caridea and Dendrobranchiata of the decapod order, although some crustaceans outside of this order are refer ...
", i.e. (in all probability) a member of the
Crustacea Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean gro ...
. Teraina's freshwater fish include the marbled eel (''
Anguilla marmorata The giant mottled eel (''Anguilla marmorata''), also known as the marbled eel, is a species of tropical anguillid eel that is found in the Indo-Pacific and adjacent freshwater habitats. Description Similar to other anguillids, the giant mottled ...
''), a ''
Caranx ''Caranx'' is a genus of tropical to subtropical marine fishes in the jack family Carangidae, commonly known as jacks, trevallies and kingfishes. They are moderate- to large-sized, deep-bodied fishes which are distinguished from other carangid g ...
'' freshwater
trevally The Carangidae are a family of ray-finned fish which includes the jacks, pompanos, jack mackerels, runners, and scads. It is the largest of the six families included within the order Carangiformes. Some authorities classify it as the only famil ...
, and '' Oreochromis'' tilapias and the milkfish ('' Chanos chanos''). The latter two, and perhaps also the trevally, were introduced in recent times. The eels were already established by 1877; like many Anguillidae they are catadromous and able to migrate some distance on dry land. Thus it may be presumed that the lake is continuously being restocked from the Pacific, though apparently no actual field data exists on the habits of the eels of Teraina. As on many
Indopacific The Indo-Pacific is a vast biogeographic region of Earth. In a narrow sense, sometimes known as the Indo-West Pacific or Indo-Pacific Asia, it comprises the tropical waters of the Indian Ocean, the western and central Pacific Ocean, and the ...
islands rich in coconut ('' Cocos nucifera'') trees, the coconut crab (''
Birgus latro The coconut crab (''Birgus latro'') is a species of terrestrial hermit crab, also known as the robber crab or palm thief. It is the largest terrestrial arthropod in the world, with a weight of up to . It can grow to up to in width from the tip ...
'') is often encountered on Teraina. A few green turtles ('' Chelonia mydas'') nest on the beaches. It is not a very important nesting site however and the
clutch A clutch is a mechanical device that engages and disengages power transmission, especially from a drive shaft to a driven shaft. In the simplest application, clutches connect and disconnect two rotating shafts (drive shafts or line shafts). ...
es have a rather low probability of success, as Teraina is one of the Kiribati islands where turtle egg collecting is permitted.


See also

*
Laysan Island Laysan (; haw, italics=no, Kauō ), located northwest of Honolulu at , is one of the Northwestern Hawaiian Islands. It comprises one land mass of , about in size. It is an atoll of sorts, although the land completely surrounds a shallow ...
– an eroded "dry" volcanic island, with a
hypersaline lake A hypersaline lake is a landlocked body of water that contains significant concentrations of sodium chloride, brines, and other salts, with saline levels surpassing that of ocean water (3.5%, i.e. ). Specific microbial species can thrive in ...
* Lisianski Island – an eroded "dry" volcanic island with completely infilled lagoon *
Rennell Island Rennell Island, locally known as Mugaba, is the main island of two inhabited islands that make up the Rennell and Bellona Province in the nation state of Solomon Islands. Rennell Island has a land area of that is about long and wide. It is th ...
in Melanesia – in some respects like a much larger version of Teeraina * List of Guano Island claims


Footnotes


References

* (2007)
Rimitara Lorikeet Species Factsheet
Retrieved 2008-FEB-24. * (1942): ''American Polynesia and the Hawaiian Chain'' (2nd ed.). Tongg Publishing Company, Honolulu, Hawaii. * (2006): 200

* (2007)

Version of 2007-SEP-10. Retrieved 2007-OCT-10. * (2004)

Version of 2004-FEB-08. Retrieved 2008-MAR-24. * (1993)
Republic of Kiribati
''In: A Directory of Wetlands in Oceania'': 185-186.
International Waterfowl and Wetlands Research Bureau Wetlands International is a global organisation that works to sustain and restore wetlands and their resources for people and biodiversity. It is an independent, not-for-profit, global organisation, supported by government and NGO membership from ...
, Slimbridge, UK and Asian Wetland Bureau, Kuala Lumpur, Malaysia. * (2006): ''Extinction and Biogeography of Tropical Pacific Birds''. University of Chicago Press. * (1877): Some Account of the Natural History of the Fanning Group of Islands. '' Am. Nat.'' 11(2): 65–72
First page image
* (1891)

In:

': 118. Lyon and Blair, Wellington. Online version 2005-FEB-16. * (2012): ''Teeraina''. Ministry of Internal & Social Affairs, Republic of Kiribati

{{Authority control Pacific islands claimed under the Guano Islands Act Line Islands Atolls of Kiribati Gilbert and Ellice Islands Line Islands (Kiribati)