The tropical seas are liberally sprinkled with coral islands.
Many of them are associated with continents and large continental islands, in relatively shallow water, rising from continental shelves. Many, also, are in deep water - atolls, barrier reef islets round high islands, almost atolls', tops of drowned karsts, and a few moderately elevated atolls. These last are among the most fascinating of all, scientifically.
An article taken from the Atoll Research Bulletin No.272|Kept at Greg's collection|Available online
Call Number: VF 1564 [EL}
Canton Atoll has a single passage between the ocean and lagoon and lias conspicuous environmental gradients from that passage to the back lagoon. These gradients include the physiography of the lagoon floor, water quality, and the diversity and abundance of corals, fishes, and mollusks. The gradients can apparently be attributed either directly or indirectly to circulation
and water motion within the lagoon. Those oceanographic characteristics can, in turn, be attributed to the geological history of the atoll, including some human modification of the pass configuration.
The avifauna of the Marshall and Gilbert Islands and the sur-
Rarotonga and Aitutaki form the summits of separate
volcanic masses rising from depths of 4000 m, at which depth
the cones are 45-55 km in diameter (Summerhayes and Kibblewh
1966, 1967).The lower slopes of the cones average 15-25
increasing to 30 in the upper 750 m and becoming very steep
the surface reef is approached. The Mauke-Aitutaki line of
islands is thought to be of early Tertiary age: the surface
volcanics are much eroded, with a subdued topography, or are
capped with limestones (Wood, 1967; Wood and Hay, 1970). On
Mataiva Atoll, one of 84 in French Polynesia, is a small coral
island at the western edge of the Tuamotu Archipelago. This atoll occupies a particular place among the French Polynesian atolls since the discovery beneath the lagoon sediments of deposits of phosphates soon to be exploited. In order to estimate the environmental effects of such exploitation and plan a management scheme, numerous studies have been carried out since 1978 by many scientific organizations: Antenne du
Although the atoll was discovered in 1796 and claimed by the United States in 1858, it was uninhabited except for brief visits by guano miners, adventurers, government scientists and military personnel until 1936, when the U.S. Navy began developing first a seaplane base and later an airstrip and refueling facilities which served as an important link from
the Hawaiian Islands to the western Pacific during World War II.
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Call Number: [EL]
Physical Description: 502 p.
The Northern Line Islands consists of four atolls aligned on
an an axis which runs from south east to north west. The three southern islands Christmas (Kiritiraati), Fanning (Tabuaeran) and Washington (Teraina) have permanent populations and are part of the Republic of Kiribati. The fourth island, Palmyra, on the north end of the chain, is an unoccupied U.S. possession.
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Call Number: [EL]
Physical Description: 39 p.
Reef coral collections from American Samoa are in the National Museum of Natural History, Smithsonian Institution, Washington, D.C., and in the Hessisches Landesmuseum, Darmstadt, W. Germany. The author has a collection of 790 coral specimens for a total of 1547 items known to be from American Samoa.
A total of 177 species (including 3 species of non-scleractinian corals) belonging to 48 genera and subgenera (including the genera Millepora and Heliopora) known to date are listed with data as of frequency of occurrence and habitat.
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Tuvalu, formerly the Ellice Islands of the Gilbert and Ellice
Islands until separation on 1 October 1975, is a particularly remote group of islands in the Central Pacific. There are nine islands, five of which are atolls and four reef-top islands on a reefal platform. The vegetation and flora of these islands have received little attention.
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Call Number: [EL]
Physical Description: 30 p.
The islands of the southern Cook and Austral groups in
the South Pacific exhibit astonishing differences in geology
and topography, even between closely adjacent islands of
similar ages. Some are sea-level atolls, others have low
fringes of Pleistocene raised reefs, and others substantial
rims of elevated mid-Tertiary limestones, locally known as
makatea. On some islands the relief of the makatea is
subdued, but on others it is dominated by eroded volcanics,
sea-level swamps, and vertical limestone walls. Sixty years
Lilie de Tupai ou Motu~Iti (16°15S, 15l°50,W), lun des cinq atolls des lies de la Societe, est, apres Bellingshausen (souvent ecrit Belling- hausen) (15°45S, 154°33W), le plus au nord de cet archipel, a 280 km NNW de Papeete. C'est grace a l'amabilite de son proprietaire, Maltre Marcel Lejeune, et a l'interet qu'il porte aux travaux scientifiques que j'ai
Located at 148°15' West and 15°50' South, in the northwesternmost part of the Tuamotu archipelago (Central Pacific), Makatea island is isolated from its nearest
neighbouring atolls, Rangiroa and Tikehau by about 80 km, and it is 245 km from its closest volcanic neighbour, Tahiti. This island rises at least 3,500 m above the sea floor.
During participation in part of the Fairbridge Expedition
to New Guinea, February to May, 1969, I had opportunity to visit 17 islands and cays east of the New Guinea mainland for sufficient time to assemble reasonably complete collections oi their terrestrial reptilian fauna. The purpose of this paper is to present the results of that survey. Fairbridge (1971 ) has previously published a brief report on the expedition and. a more detailed one is in preparation.
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Call Number: [EL]
Physical Description: 41 p.
From 0900 on 17 June to 0615 on 19 June 1965 Caroline Atoll was visited by a field party from the Pacific Ocean Biological Survey Program (POBSP) of the Smithsonian Institution. The field party, led by Sibley, collected and made observations on vascular plants, fish, reptiles, mammals, and birds. All islands with the exception of the northern two-thirds of Nake were visited. Prior knowledge of the biota of Caroline Atoll is very scant, deriving almost entirely from the visits of F. D. Bennett in 1835, Devoy in 1875, and the U.S.S. Hartford in 1883.
Tongatapu, like Tahiti, was visited by many early
European navigators and was one of the first of the South
Pacific islands to be charted in any detail. Though it was
discovered (and named Amsterdam Island) by Tasman in
January 1643 (Sharp 1968, 152-158), the first comments on
the sand cays of the surrounding reefs were made by Cook
during his second voyage, with the Resolution and Adventure,
in October 1773. On this occasion Cook spent less than a
week at Tongatapu, anchored in the northwest, and commented
Rangiroa is the largest atoll in the Tuamotu Archipelago, and since the institution of a regular air service, the most accessible; yet in common with other Tuamotuan atolls it has rarely been visited by scientists and is barely mentioned in the literature. Dana (1849) published brief notes following the Wilkes Expedition; but the only full account is that by Agassiz (1903). Agassiz's descriptions are, however, verbose and imprecise, and marred by misinterpretations of major atoll features.
The Tokelaus are a chain of three atolls, soutii of the Phoenix Group and north of the Sarnoas. Distances (in statute miles) froin Apia, Western Samoa, are approxi~i~ately 300 to Fakaofo, 330 to Nukunono, and 400 to Atafu. Annual rainfall for each atoll is usually in excess of 100 inches but they have experienced long dry spells. llurricanes occasionally pass througii the group and several motus of I4ukunono atoll were swept by waves in the storni of January 29 and 30, 1966.
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Call Number: [EL]
Fais (Tromelin) is an elevated coral island, surrounded by interrupted cliffs 15-20 meters high, lying some 140 miles east of Yap Island, at latitude 9'46' N, longitude 140'31' E in the western Caroline Islands. It has an area of 2.8 square km, and has a population of about 300 people, Micronesians, speaking a dialect of the Ulithi-Woleai tongue. As with many such raised coral islands, valuable calcium phosphate deposits occur on Fais, the greater portion of which was removed and exported during the period of Japanese rule (1914-1945).
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As of 1969, the scientific community had no general information on the natural history of Namoluk Atoll in the Eastern Caroline Islands of Micronesia. The only significant published source for the atoll was an ethnographic and linguistic account provided by the German physician.
The conservation status, ecology, and cultural importance of sea turtles at the three Polynesian atolls of Tokelau are presented. The green turtle, Chelonia mydas. is the most common species, occurring as a migrant breeder mostly during September through November. The hawks- bill, Eretmochelvs imbricata. is present in small numbers at all three atolls, but nesting is only known at Nukunonu Atoll. A third species, the loggerhead, Caretta caretta. has also been recorded on rare occasions.