Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 395 résultats pour les termes de recherche: rat OR Rattus rattus

Affichage des résultats: 191 à 200

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Structure of the Gabon Margin from integrated seismic reflection and gravity data

In the South Gabon Basin, deep multi-channel seismic reflection and gravity modeling analysis have shed light on key features of the structure of the margin. The thinned continental crust beneath the Gabon Margin appears to be composed of two distinc...

How wide is the seismogenic zone of the Lesser Antilles forearc?

The Lesser Antilles subduction zone has produced no recent strong thrust earthquakes, making it difficult to quantify the seismic hazard from such events. The Lesser Antilles arc has a low subduction rate and an accretionary wedge that is very wide a...

Contribution des DCP fixes et derivants a l'accroissement de la puissance de peche des navires de peche thoniere

Tuna world fisheries yield 3 million tons per year; the increase rate of whole production is constant and sustained since 30 years. This original figure for marine fisheries is due to enlargement of tuna fleets and fishing grounds over all the world ...

Nitrogen isotopic evidence for a shift from nitrate- to diazotroph-fueled export production in the VAHINE mesocosm experiments

In a coastal lagoon with a shallow, 25 m water column off the southwest coast of New Caledonia, large-volume (similar to 50 m(3)) mesocosm experiments were undertaken to track the fate of newly fixed nitrogen (N). The mesocosms were intentionally fer...

Gametogenic cycle and reproductive effort of the tropical blacklip pearl oyster, Pinctada margaritifera (Bivalvia : Pteriidae), cultivated in Takapoto...

The gametogenic cycle and the reproductive effort of the blacklip pearl oyster, Pinctada margaritifera, cultivated in Takapoto lagoon were studied for a 1-year period (March 1997-April 1998) by bimonthly observations of gonadal sections, dry tissue w...

Compte rendu de mission dans le cadre du processus de transfert de lézards entre Vale NC et le Parc Zoologique & Forestier

Dans le cadre de l'arrêté N°2848-2013/ARR/DENV du 7 Novembre 2013, la Direction de l'Environnement de la Province Sud avait prescrit l'élaboration par Vale Nouvelle-Calédonie d'un protocole de transfert de lézards depuis des sites se trouvant s...

Live preys in shrimp culture: nutritional and sanitary considerations on the use of Artemia in New Caledonia

In aquaculture, Artemia nauplii are commonly used as live prey; and represent 40 % of the total aquaculture feed demands in the early stages. However, the production of Brine shrimp is very unstable from one year to another and in the late 90’s, on...

Islets of New-Caledonia lagoons in the perspective of Climate change and sea level rise

Context and problematic: On July 7th 2008, UNESCO included parts of Lagoons of New Caledonia in the list of the Reef Diversity and Associated Ecosystems. Sandy islets from New Caledonian lagoons lie on lagoonal reef platforms or on the reef barrier.T...

Oiseaux marins nicheurs des îlots de la Corne sud en janvier 2010

Ce rapport présente les résultats d'une campagne d'inventaire menée du 07 au 16 Janvier 2010 dans la Corne Sud du Grand Lagon Sud. Il s'agit de la première convention sur une série de quatre destinées à établir un état des lieux des populati...

La marge sud-marocaine et les premières phases d'ouverture de l'océan Atlantique Central

We here propose a twofold approach to study the continental margins of the Central Atlantic Ocean, with special focus on the South Morocco Margin, in front of Reguibat bloc. This approach is based on plate kinematics reconstructions and geological fi...