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: 711 à 720

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Structure and Plate Tectonic Evolution of the Marine Arctic as Revealed by Aeromagnetics

Over 400,000 km of low level aeromagnetic data were collected by US Navy research organization over the Arctic Basin and Greenland-Norwegian Sea during the years 1972 to 1978. These data provide new constraints on the crustal structure and tectonic e...

Problems and perspectives of the pearl oyster aquaculture in French Polynesia.

The first attempt to obtain artificial pearls from the black-lip pearl oyster Pinctada margaritifera in French Polynesia dates back to 1963. The pearl oyster culture has grown quickly especially since the eighties. This industry is now the first expo...

Humpback whale surveys in the Chesterfield Archipelago : a reflection using 19th century whaling records

The Chesterfield Archipelago is a large, uninhabited complex located in the central Coral Sea (19°-22°S, 158°-160°E), halfway between Australia and the main island of New Caledonia. It is composed of two main plateaus, the Chesterfield platform a...

Introduction and evaluation of silky oak (Grevillea robusta) provenances in New Caledonia

The results of the seed sources/progenies trial of #Grevillea robusta# allow us to state that the seed source selection is highly interesting for this species. In New Caledonia, the seed sources coming from elevations around 200 m were significantly ...

Quelques données biométriques sur les albacores de la région ouest de la Nouvelle-Calédonie

Covariance analysis of regressions for 8 characters do not show any significant difference between males and females. But for the length of the pectoral, the variance ratio is rather close to the significant level as already observed for yellowfin. E...

Essai d'utilisation de la diversité spécifique dans l'analyse des communautés de copépodes planctoniques du lagon de Nouvelle-Calédonie

During a one-year survey of the South-Western part of the New Caledonian lagoon (February 1978 - April 1979), zooplankton was sampled at eight stations representing different biotopes. This paper attempts to explain the regional dynamics of the copep...

Introduction à l'étude des sols issus de roches ultrabasiques : géomorphologie d'un massif de la côte Ouest de la Nouvelle Calédonie, le Boulinda...

L'histoire géomorphologique du massif du Boulinda parait avoir joué un rôle essentiel dans la mise en place des sols qui le recouvrent. L'étude de la forme du modelé et des éléments grossiers résiduels (cuirasse ferragineuse, sables et gra...

Etude du traitement du café par voie humide : Mission en Nouvelle-Calédonie du 23 août au 6 septembre 1989.

Cette mission (23/8 au 6/9/1989) avait pour but d'analyser les pratiques existantes pour le traitement post-récolte du café et éventuellement de les corriger ou de les modifier pour parvenir à une qualité exceptionnelle. Bien que 96 % du café p...

A new species of the sponge Raspailia (Raspaxilla) (Porifera : Demospongiae : Axinellida : Raspailiidae) from deep seamounts of the Western Pacific

A new species of Raspailia (Raspaxilla) frondosa sp. nov. is described from the deep seamounts of the Norfolk and New Caledonia Ridges. The morphology of the species resembles that of a frond or a fern, and its unique highly compressed axial skeleton...

Novitates neocaledonicae VII : a new monocaulous species of Bocquillonia (Euphorbiaceae) from New Caledonia

A new species of Euphorbiaceae, Bocquillonia corneri, narrowly endemic to the extreme north-east of New Caledonia's main island, is here highlighted, described and illustrated, based on original morphological and architectural characteristics. This n...