Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1426 résultats pour les termes de recherche: changement climatique

Affichage des résultats: 521 à 530

h

h

Espaces de vie et conscience politique : le cas des Mélanésiens de Nouvelle-Calédonie;Le voyage inachevé... à Joël Bonnemaison

For a long time, recovering the land of their fathers (under colonial control) has been the main target for the Melanesian community in New Caledonia. After 1985, the objective has been changing to recovering sovereignty. But every day, the unbalance...

Comparative ichthyotoxicity of shallow and deep water sponges of New Caledonia;Proceedings of the sixth international coral reef symposium

A survey of comparative ichthyotoxicity in marine sponges from shallow and deep water in the Southern province of New Caledonia was conducted. Test fish #Gambusia affinis$ (#Vertebrata, Pisces$) were exposed to aqueous macerates of 30 shallow water a...

Reproductive biology of the holothurians from major communities of the New Caledonian lagoon

The reproductive biology of nine species of aspidochirote holothurians from the majour communities of the New Caledonian lagoon has been analysed. The data were obtained from monthly sampling from 1978 to 1982 of their populations on reef slopes and ...

Chemical and physical transfers in an ultramafic rock weathering profile: 2. Dissolution vs. accumulation of platinum group minerals

The chemical weathering of ultramafic rocks has resulted in eluvial concentration of Pt-group minerals (PGM) in lateritic weathering profiles of southern New Caledonia. The Pt mineralization interpreted as being primary consists of Pt-group minerals ...

Recent spread of the sida leafbeetle, Calligrapha pantherina Stal, 1859 (Coleoptera: Chrysomelidae: Chrysomelinae) in New Caledonia

We report the recent arrival and subsequent spread of the Sida Leafbeetle, Calligrapha pantherina Stal, 1859, in the archipelago of New Caledonia. The species seems to have a rapid spread as it is now recorded all along the west coast and also have s...

Exploration de la performance de la gouvernance des petites pêcheries du Pacifique Sud par une démarche de recherche-action

Notre travail est une contribution à l'élaboration d'un cadre de recherche pour étudier le développement institutionnel pour la cogestion des ressources halieutiques communes, qui reste un mode de gouvernance minoritaire à l'échelle mondiale ma...

Nickel and ocean warming affect scleractinian coral growth

The sensitivity of corals and their Symbiodinium to warming has been extensively documented; however very few studies considered that anthropogenic inputs such as metal pollution have already an impact on many fringing reefs. Thus, today, nickel rele...

Acclimatization of massive reef-building corals to consecutive heatwaves

Reef-building corals typically live close to the upper limits of their thermal tolerance and even small increases in summer water temperatures can lead to bleaching and mortality. Projections of coral reef futures based on forecasts of ocean temperat...

Gestion du passif de l'activité minière. Rapport scientifique

Le programme « Gestion du passif de l’activité minière et remédiation (engravement et sédimentation) » s’est intéressé aux dégradations engendrées par les anciennes décharges minières et les sols mis à nus par les exploitations (zone...

Chemical and physical transfers in an ultramafic rock weathering profile: 2. Dissolution vs. accumulation of platinum group minerals

The chemical weathering of ultramafic rocks has resulted in eluvial concentration of Pt-group minerals (PGM) in lateritic weathering profiles of southern New Caledonia. The Pt mineralization interpreted as being primary consists of Pt-group minerals ...