Fish communities in the lagoon of the Tikehau atoll were studied by only a few researchers. Harmelin-Vivien (1984) studied the distribution of the main herbivorous families (Scaridae and Acanthuridae) in the lagoon and on the outer slope to 30 m in depth. The total fish community of the outer slope was studied by Galzin (1985, 1987) at 12 m in depth. These studies were carried out in the southwestern part of the atoll. Spatial organization of coral associated fish community was studied throughout the lagoon by Morize et al. (1990). Most of the other
The colonization of the lagoon by coral reef fish larvae was compared between two islands of French Polynesia, the atoll of Rangiroa and the high volcanic island of Moorea. In both cases the larval flux coming into the lagoon followed a daily cycle.
Ten caves in the makatea limestone of Mangaia, Cook Islands were explored and mapped, totalling over 3.7 km of passage. Of these, there was an apparent grouping by elevation that corresponds with previously described sea-level terraces in the makatea. Four caves have major level sections 10-20 m above sea-level, corresponding with a 14.5 m Pleistocene terrace. The high dimensions of these caves indicate downcutting during
The Republic of the Marshall Islands requested a natural and cultural biodiversity survey of 6 northern atolls (Bok-ak, Pikaar, Toke, Wotto, Rondik, Adkup) and one reef island (Jemo) which was accomplished over 17 days in September 1988. This report covers the results of the survey of the reefs and corals during the expedition. Ninety-five marine sites were snorkeled and the shorelines of all island were surveyed during the
The recorded flora of the raised phosphatic limestone island of Nauru in the equatorial Pacific Ocean consists of approximately 493 species. Only 59 are possibly indigenous, none of which are endemic. The balance is composed of ornamentals, weedy exotics, food plants, and a limited number of other useful cultigens. Twelve of the recorded species are either extinct or were never successfully established on Nauru.
This paper lists the vascular flora of the three atolls (Canton, Gardner, Hull) and five small islands (Birnie, Enderbury, McKean, Phoenix, Sydney) of the Phoenix Group,
located in the arid equatorial belt of the Central Pacific, based on extensive collections made in 1973 and 1975 and on previous records and collections. The flora includes 87
species in 36 families. Only 28 of the species (32%) are considered native. A further 60 species have been recorded in the literature, many of them deliberate introductions which
This paper describes the channels known as hoa which are characteristic of atoll land rims and of some islands on barrier reefs, where they often dissect previously more continuous reef-top sediment accumulations and conglomerate platforms. They are
Nukutipipi atoll (5 km2), of volcanic origin 16-17 million years old on the Pitcairn (hot spot) Hereheretue line, presents a land flora and fauna of low diversity but with a Pisonia forest and hundreds of resident red-tailed tropic birds. Nukutipipi suffered from the 1983 hurricanes : destruction of vegetation and motu as well as sand lagoon mollusc populations. The north and south rims present original geomorphological structures.
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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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
Coral reefs are vital ecosystems, providing a source of income, food arid coastal protection for millions of people; arid recent studies have shown that coral reef goods and services provide an annual net benefit of US$30 billion to economies worldwide
During the period February 13 to 20, 1973, a visit was made to Canton Island for the purpose of conducting a preliminary survey of marine turtle nesting populations. Although previous investigators have described the sea birds (Buddle, 1938; Murphy G., 1954), insects (Van Zwaluwenburg, 1943, 1955), and vegetation (Hatheway, 1955), very little is known about the marine environment of Canton or the other seven atolls (Enderbury, Birnie, Phoenix, Sydney, Hull, Gardner and McKean) which comprise the Phoenix group.
In 1965 Vostok Island was visited briefly by Sibley and five members of the Pacific Ocean Biological Survey Program (POBSPJ of the Smithsonian Institution. Observations were made from 0900 15 June through 1300 16 June and collections were made of vascular plants, fish, reptiles, birds, mammals, and avian ectoparasites. A small number of seabirds was banded.
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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.
Satawal is a small flat coral island in the west central Caroline Islands about 1050 km east-south-east of Yap Island, at latitude 7'21' N, longitude 147'02' E. Although its surface is locally somewhat irregular, its greatest height is not more than about 4 meters above mean low water. Its long axis is about east-west and its area is 1.3 square km. It is surrounded by a fringing reef upward of 100 meters wide. It has no lagoon, so would be classified according to Tayama's scheme as a table reef. From the viewpoint of land ecology it is an atoll.
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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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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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.
Although ornithological observations have not been the main object of any pliase of our work on the Northern Marshall Islands, numerous notes on birds have accumulated which are here placed on record, The birds were identified by use of Ernst Mayr's "Birds of the Southwest Pacific!' and the names used here are mostly those accepted by Mayr in that work. UnIortunately it was impractical to document these records with specin?ens. The sight observations presented should therefore be acceprcd with some reservations.
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The Gilbert Islands are a part of the Gilbert and Ellice Islands Crown Colony of Great Britain. They lie in the Pacific Ocean directly southeast of the Ilarshall Islands and are located between the parallels of g045' S. and 3'30' N. latitude, and the meridians of 1720301 E. and 177 15' E. longitude. All of the islands in this groui3 are low islands related to atolls. They are inhabited by Micronesian and Melanesian people who are greatly dependent on materials from the sea for food.
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