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
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
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.
The island was first mentioned by Roggeveen in 1722
(JOURDAIN 1970), but visits became regular only during the
XlXth century. An evangelist, of the "London Missionary
Society" settled down in 1829 (NEWBURY 1986), which supposes
that exchanges with the outside were regular at that time.
This probably explains the presence of bird specimens
collected outside the Scientific Expeditions (e.g. description of Ptilinopus purpuratus chalcurus in 1859 by GRAY).
Available online
Call Number: [EL]
The Clipperton atoll (10°18'N, 109°13'W) is closed and holds a
lagoon with marked stratification; surface waters are brackish
(S=4/6%), but deep waters show a salinity close to that of seawater and high concentrations of H2S; temperature and pH are high. In this paper, environmental data concerning the atoll, the lagoon and the surrounding ocean are recalled and are followed by the study of the zooplankton of the lagoon and ocean.
Available online
Call Number: [EL]
Physical Description: 17 p.
Recent studies have shown that many coral reefs are capable of
yielding a total fish catch of 18- 24 T.Km-2 (Hill, 1978; Alcala,
1981; Munro, 1987). There are, however, no estimates for the
productivity and yield of fishes associated with coral reefs in
French Polynesia. This study was designed to determine the fisheries yield from a part of the fringing reef on the island of Moorea, French Polynesia.
Available online
Call Number: [EL]
Physical Description: 22 p.
Island ecosystems have proven to be particularly sensitive to
human disturbances (Bourne 1975; Byrne 1980; Jarvis 1979). This was first noted by Charles Darwin in the explanation of his theory of natural selection (Byrne 1980). Since then, qualities of insular species have been examined by various authors in an attempt to understand the basis for island vulnerability.
Available online
Call Number: [EL],VF 2783
Physical Description: 34 p.
On the 21st of October, 1972, hurricane "Bebe" devas-
tated a large part of Funafuti atoll, Ellice Islands. Among
the most spectacular geomorphological alterations caused by the
hurricane was a storm beach 19 km long, 4 m high and 37 m wide.
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.
Available online
Call Number: [EL]
Physical Description: 30 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.
Available online
Call Number: [EL]
Physical Description: 39 p.
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
This paper is a somewhat revised and updated version of a report, written in 1973 after our 9-day visit, at the request of Mr. Marlon Brando, proprietor of Tetiaroa Atoll, and published here with his accord. The original version was based on that visit to the atoll, as explained in the introduction. It was supplemented by a few observations called from herbarium specimens and field notes of Dr. Gerrit Wilder, who visited the island briefly on March 12, 1925 and August 30, 1929, and of E. H. Quayle, of the Whitney Expedition, who stopped there on November 19-21, 1921.
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
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.
Available online
The Tokelau Islands consist of three atolls (Atafu, Nukunonu and Fakaofo) approximately 500 km north of Western Samoa. Their numerous islets are formed mainly of coral sand and rubble with no standing freshwater. Sixty-one plant species have been recorded, 13 of these being introduced and 10 being adventives. There are three vegetation zones, the beach, the beach-crest, and the interior coconut/fern zone with the physiognomy of a humid tropical forest. Marine invertebrates have not been studied.
Species-numbers relationships in the McKean Island assemblage
of reef-building corals were investigated to discover how they changed along environmental gradients of the reef. For the purposes of the study, two gradients were identified a complex depth gradient and a wave exposure gradient.
Available online
Call Number: [EL]
Physical Description: 42 p.
At the time of the POBSP visit, cats (Felis domestica), dogs
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.