Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1268 résultats pour les termes de recherche: hydroélectricité OR production hydoélectrique

Affichage des résultats: 561 à 570

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Modulation of habitat-based conservation plans by fishery opportunity costs : a New Caledonia case study using fine-scale catch data

Numerous threats impact coral reefs and conservation actions are urgently needed. Fast production of marine habitat maps promotes the use of habitat-only conservation plans, where a given percentage of the area of each habitat is set as conservation ...

Les sols des fonds de bassins et leur gestion durant les assecs. Etat des connaissances

Shrimp culture in New Caledonia has developed according to the "intensified" semi-intensive model which uses ponds that stretch over several hectares. Local shrimp farms are for the most part installed in "tannes", barren, highly saline areas of the ...

Monthly variability of self-recruitment for a coral reef damselfish

Understanding the dynamics of marine populations is critical to managing marine systems effectively and requires information on patterns of population dispersal and connectivity that are still poorly known. We used transgenerational marking to study ...

Introduction to the project VAHINE : VAriability of vertical and tropHlc transfer of diazotroph derived N in the south wEst Pacific

On the global scale, N-2 fixation provides the major external source of reactive nitrogen to the surface ocean, surpassing atmospheric and riverine inputs, and sustains similar to 50 % of new primary production in oligotrophic environments. The main ...

Acetoanaerobium pronyense sp. nov., an anaerobic alkaliphilic bacterium isolated from a carbonate chimney of the Prony Hydrothermal Field (New Caledon...

A novel anaerobic bacterial strain, ST07-YET, was isolated from a carbonate chimney of the Prony Hydrothermal Field (PHF) in New Caledonia. Cells were Gram-stain-positive, straight rods (0.7-0.8 x 3.0-5.0 mu m) and motile by means of lateral flagella...

Temporal variability of CO2 fluxes at the sediment-air interface in mangroves (New Caledonia)

Carbon budgets in mangrove forests are uncertain mainly due to the lack of data concerning carbon export in dissolved and gaseous forms. Temporal variability of in situ CO2 fluxes was investigated at the sediment-air interface in different seasons in...

A drastic lower Miocene regolith evolution triggered by post obduction slab break-off and uplift in New Caledonia

A lower Miocene coarse conglomerate that crops out in the Népoui Peninsula does not represent the base of the marine transgression that followed obduction in New Caledonia. Instead, the conglomeratic alluvial fan that contains peridotite cobbles and...

Espèces rares et protégées dans la zone d’influence des infrastructures industrielles et minières de Vale NC : Bilan 2016 des activités de cons...

Un des objectifs de l'équipe conservation du service préservation de Vale NC est d'élaborer des programmes de veille, de suivi et de mise en culture d'espèces rares. Les actions de conservation concernent des espèces rares, menacées et/ou prot...

Synthèse des connaissances sur les impacts environnementaux de la pollution lumineuse en Nouvelle-Calédonie

Lauréat du programme européen BEST 2.0+, le projet Pollux NC a été lancé le 7 juillet 2021 pour une durée de 16 mois. Son objectif : fournir les premières informations quantifiées sur la pollution lumineuse à l'échelle de la Nouvelle-Caléd...

La culture du phytoplancton dans les bassins aquacoles - Aspects théoriques et applications pratiques

Rôles du phytoplancton dans les bassins aquacoles en terre.