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: 1161 à 1170

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Residual genetic variability in domesticated populations of the Pacific blue shrimp (Litopenaeus stylirostris) of New Caledonia, French Polynesia and ...

The Latin American shrimp Litopenaeus stylirostris was introduced in three different Pacific islands (Tahiti, New Caledonia via Tahiti, and Hawaii) and hatchery-propagated for 7-25 generations to develop shrimp farming based on these domesticated sto...

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...

Floral biology of the Cunoniaceae in New Caledonia and the role of insects, birds and geckos as potential pollinators

Cunoniaceae are represented in New Caledonia by some 90 species, all of them endemic, and the family is thus a significant element in this diverse island flora. We present a descriptive survey of floral biology for the seven genera present, covering ...

Dinitrogen fixation and dissolved organic nitrogen fueled primary production and particulate export during the VAHINE mesocosm experiment (New Caledon...

In the oligotrophic ocean characterized by nitrate (NO3-) depletion in surface waters, dinitrogen (N-2) fixation and dissolved organic nitrogen (DON) can represent significant nitrogen (N) sources for the ecosystem. In this study, we deployed large i...

Tree-rings and the climate of New Caledonia (SW pacific) preliminary results from Araucariacae

The dendroclimatologic potential of some Araucariacae of New Caledonia (including Agathis, or kauris, and Araucaria) is assessed using ring thickness and delta O-18 measurements. New Caledonia is a group of islands in the SW Pacific that are currentl...

Morphogenèse tropicale en contexte épirogénique modéré : exemple de la Nouvelle-Calédonie (Pacifique Sud-Ouest)

This thesis is a contribution to the understanding of long-term (106 – 107 yr) tropical landform development under the influence of epeirogenic forcing and climate change, with a special reference to mainland New Caledonia. The approach combines ge...

Morphogenèse tropicale en contexte épirogénique modéré : exemple de la Nouvelle-Calédonie (Pacifique Sud-Ouest)

This thesis is a contribution to the understanding of long-term (106 – 107 yr) tropical landform development under the influence of epeirogenic forcing and climate change, with a special reference to mainland New Caledonia. The approach combines ge...

Morphogenèse tropicale en contexte épirogénique modéré : exemple de la Nouvelle-Calédonie (Pacifique Sud-Ouest)

This thesis is a contribution to the understanding of long-term (106 – 107 yr) tropical landform development under the influence of epeirogenic forcing and climate change, with a special reference to mainland New Caledonia. The approach combines ge...

Incendies 2019 : quel bilan provisoire pour l'environnement ?

Fig. 1 : Carte de densité du nombre d'incendies détectés du 1er janvier au 31 décembre 2019 Sources : OEIL, NASA (VIIRS) Le suivi par satellite opéré par l'OEIL fait état de 676 incendies détectés sur l'année 2019, pour un cumul de surfac...

OLD Incendies 2019 : quel bilan provisoire pour l'environnement ?

Préambule : des données précoces qui restent à affiner L'ensemble des chiffres communiqués pour l'année 2019 sont des estimations qui nécessiteront une analyse affinée. La faible résolution des capteurs satellitaires VIIRS (Visible Infrared...