Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 2307 résultats pour les termes de recherche: ~riviere OR creek OR eau douce

Affichage des résultats: 881 à 890

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Molecular markers to assess genetic diversity and population structure of an insular tree Santalum austrocaledonicum in New Caledonian archipelago

We present the study of the genetic diversity and structure of a tropical tree in an insular system, using nuclear and chloroplastic microsatellites. Santalum austrocaledonicum is endemic to the archipelago of New Caledonia and is exploited for oil e...

The metamorphic sole of New Caledonia ophiolite: Ar-40/Ar-39, U-Pb, and geochemical evidence for subduction inception at a spreading ridge

Amphibolite lenses that locally crop out below the serpentinite sole at the base of the ophiolite of New Caledonia (termed Peridotite Nappe) recrystallized in the high-temperature amphibolite facies and thus sharply contrast with blueschists and eclo...

Post-obduction dismantling of the early regolith and related conglomerates in the Kopeto-Boulinda-Nepoui area (New Caledonia): a possible Lower Miocen...

In New Caledonia post obduction uplift caused the erosion of the early regolith, but their timing is poorly constrained. The Nepoui Formation, on the west coast, is a witness of post-obduction deposits. This area presents stepped ferruginized surface...

Spatial distribution of small pelagic fish in the lagoon of New Caledonia;Proceedings of the 6th international coral reef symposium

Two acoustic surveys have been done in the lagoon all around New Caledonia, with a digital integrator. The cruises lasting two weeks were done at six month interval. Much information has been obtained on stock biomass and spatial distribution of fish...

Eocene pre- and syn-obduction tectonics in New Caledonia (Southwest Pacific), a case for oblique subduction, transcurrent tectonics and oroclinal bend...

The structural analysis of the metamorphic belt and allochthonous terranes, which represent the lower and upper plates of the Eocene subduction/obduction complex of New Caledonia respectively, unravels a multi-step evolution. At subduction inception,...

Xestospongin B, a competitive inhibitor of IP3-mediated Ca2+ signalling in cultured rat myotubes, isolated myonuclei, and neuroblastoma (NG108-15) cel...

Xestospongin B, a macrocyclic bis-1-oxaquinolizidine alkaloid extracted from the marine sponge Xestospongia exigua, was highly purified and tested for its ability to block inositol 1,4,5-trisphosphate (IP3)-induced Ca2+ release. In a concentration-de...

The Southwest Pacific Ocean circulation and climate experiment (SPICE)

The Southwest Pacific Ocean Circulation and Climate Experiment (SPICE) is an international research program under the auspices of CLIVAR. The key objectives are to understand the Southwest Pacific Ocean circulation and the South Pacific Convergence Z...

Microbial diversity in a submarine carbonate edifice from the serpentinizing hydrothermal system of the Prony Bay (New Caledonia) over a 6-year period

Active carbonate chimneys from the shallow marine serpentinizing Prony Hydrothermal Field were sampled 3 times over a 6 years period at site ST09. Archaeal and bacterial communities composition was investigated using PCR-based methods (clone librarie...

Revision of Pycnandra subgenus Leptostylis and description of subgenus Wagapensia (Sapotaceae), a genus endemic to New Caledonia

The genus Pycnandra Benth. (Sapotaceae, Chrysophylloideae) is endemic to New Caledonia with 66 known species and is subdivided in six subgenera. We have earlier revised four of these subgenera and here continue with P. subgenus Leptostylis and descri...

Assessing the design and power of capture-recapture studies to estimate demographic parameters for the Endangered Oceania humpback whale population

Capture-recapture studies offer a powerful tool to assess abundance, survival and population rate of change (lambda). A previous capture-recapture study, based on DNA profiles, estimated that the IUCN-listed Endangered Oceania population of humpback ...