Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 2304 résultats pour les termes de recherche: ~riviere OR creek OR eau douce

Affichage des résultats: 791 à 800

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Vallitalea pronyensis sp nova, isolated from a marine alkaline hydrothermal chimney

A novel thermotolerant, anaerobic, Gram-stain-positive, spore-forming bacterium was isolated from a hydrothermal chimney in Prony Bay, New Caledonia. This strain, designated FatNl3(T), grew at 15-55 degrees C (optimum 30 degrees C) and at pH 5.8-8.9 ...

Endangered New Caledonian endemic mushroom coral Cantharellus noumeae in turbid, metal-rich, natural and artificial environments

Since its description in 1984, little attention has been paid to the New Caledonian endemic mushroom coral Cantharellus noumeae (Fungiidae), an IUCN Red-listed, endangered coral species. Our study presents the first ever quantitative assessment condu...

Satellite tracking reveals novel migratory patterns and the importance of seamounts for endangered South Pacific humpback whales

The humpback whale population of New Caledonia appears to display a novel migratory pattern characterized by multiple directions, long migratory paths and frequent pauses over seamounts and other shallow geographical features. Using satellite-monitor...

Five new species and a systematic synopsis of Pycnandra (Sapotaceae), the largest endemic genus in New Caledonia

Pycnandra Benth. (Sapotaceae) is the largest endemic genus in New Caledonia and is subdivided into six subgenera. An addition of five species are here described in four subgenera, viz. P. comptonioides Swenson & Munzinger, P. kouakouensis Swenson & M...

CDOM fluorescence as a proxy of DOC concentration in natural waters : a comparison of four contrasting tropical systems

Chromophoric dissolved organic matter (CDOM) fluorescence or absorption is often proposed as a rapid alternative to chemical methods for the estimation of bulk dissolved organic carbon (DOC) concentration in natural waters. However, the robustness of...

Diversity of Halimeda (Bryopsidales, Chlorophyta) in New Caledonia : a combined morphological and molecular study

Halimeda is a genus of calcified and segmented green macroalgae in the order Bryopsidales. In New Caledonia, the genus is abundant and represents an important part of the reef flora. Previous studies recorded 19 species that were identified using mor...

A statistical algorithm for estimating chlorophyll concentration from MODIS data;Ocean remote sensing and monitoring from space

We propose a statistical algorithm to assess chlorophyll-a concentration ([chl-a]) using remote sensing reflectance (Rrs) derived from MODerate Resolution Imaging Spectroradiometer (MODIS) data. This algorithm is a combination of two models: one for ...

Prioritizing conservation of tropical dry forests in the Pacific

To identify forests of high priority for conservation in tropical dry forests of New Caledonia, Fiji, the Marquesas and Hawaii, we examined patterns of woody plant species richness (total, native and endemic) and threatened species (IUCN categorizati...

Tracking the origins of plastic debris across the Coral Sea : a case study from the Ouvéa Island, New Caledonia

Contamination of the marine environment by human-made plastic litter is a growing and global problem. Our study attempts to explain the presence of two plastic bottles beached on the Ouvéa Island, in the southwest Pacific Ocean, with trademarks from...

Autorités coutumières et réformes foncières : propriété, coutume, souveraineté;La formalisation des droits sur la terre : bilan des expérience...

La notion de formalisation se situe au coeur des dispositifs visant à réformer et réguler les formes d'accès, d'usage et de contrôle des ressources foncières. Les réformes foncières manipulent toutes des outils de formalisation, mais selon de...