Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 755 résultats pour les termes de recherche: coraux

Affichage des résultats: 71 à 80

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Taxonomy and phylogenetic relationships of the coral genera Australomussa and Parascolymia (Scleractinia, Lobophylliidae)

Novel micromorphological characters in combination with molecular studies have led to an extensive revision of the taxonomy and systematics of scleractinian corals. In the present work, we investigate the macro- and micromorphology and the phylogenet...

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...

Localised and limited impact of a dredging operation on coral cover in the northwestern lagoon of New Caledonia

We report here an interannual survey (2006-2012) of coral cover in the northwestern lagoon of New Caledonia, to assess the impact of an important dredging operation (August 2008-February 2010) associated with the construction of the largest nickel mi...

The three steps of the carbonate biogenic dissolution process by microborers in coral reefs (New Caledonia)

Biogenic dissolution of carbonates by microborers is one of the main destructive forces in coral reefs and is predicted to be enhanced by eutrophication and ocean acidification by 2100. The chlorophyte Ostreobium sp., the main agent of this process, ...

Responses of two scleractinian corals to cobalt pollution and ocean acidification

The effects of ocean acidification alone or in combination with warming on coral metabolism have been extensively investigated, whereas none of these studies consider that most coral reefs near shore are already impacted by other natural anthropogeni...

Oxygen isotope systematics in Diploastrea heliopora : new coral archive of tropical paleoclimate

CORAIL;PALEOCLIMAT;EL NINO;TEMPERATURE DE SURFACE;SALINITE;ANALYSE ISOTOPIQUE;OXYGENE;CARBONE;VARIATION INTERANNUELLE;CHANGEMENT CLIMATIQUE

Black corals (Antipatharia) of New Caledonia;Compendium of marine species from New Caledonia

CORAIL;INVENTAIRE FAUNISTIQUE;DIVERSITE SPECIFIQUE;ARCHIPEL

Sustainability of exploited marine ecosystems through protected areas : a viability model and a coral reef case study

RESSOURCES HALIEUTIQUES;STOCK;DYNAMIQUE DE POPULATION;MODELE;GESTION DES PECHES;ANALYSE DE VARIANCE;ETUDE DE CAS;AIRE MARINE PROTEGEE

The Coral Sea : physical environment, ecosystem status and biodiversity assets

The Coral Sea, located at the southwestern rim of the Pacific Ocean, is the only tropical marginal sea where human impacts remain relatively minor. Patterns and processes identified within the region have global relevance as a baseline for understand...

Small-scale habitat structure modulates the effects of no-take marine reserves for coral reef macroinvertebrates

RECIF CORALLIEN;INVERTEBRE AQUATIQUE;HABITAT;STRUCTURE DU PEUPLEMENT;ABONDANCE;VARIATION SPATIALE;RESERVE MARINE;IMPACT DE L'ENVIRONNEMENT