Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1652 résultats pour les termes de recherche: Fuite acide avril 2010

Affichage des résultats: 901 à 910

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Atelier marin, vers un suivi optimal des lagons et récifsIndicateur de pression de pêche en Nouvelle-Calédonie

Document qui donne de l'information sur les indicateurs de pression et d'impact de la pêche. les méthodes de suivi sont également abordées (pêche professionnelle et non professionnelle).

Early taphonomy and significance of naturally submerged Nautilus shells from the New Caledonia region

The discovery of 11 Nautilus macromphalus shells in marine environments near New Caledonia constitutes the first opportunity for taphonomic analysis of empty shells of unburied, externally shelled cephalopods on the seafloor. Radiometric dating indic...

Taxonomic resolution needed to describe invertebrate assemblages and to detect harvesting effects on coral reef ecosystems

Due to the cost and time required for species identification, the taxonomic sufficiency approach has been developed in order to detect community response to a disturbance, using high taxonomic level without great loss of information. This concept has...

Growth and chronology of the rhodolith-forming, coralline red alga Sporolithon durum

We report extension rates and growth patterns of the coralline red alga Sporolithon durum (rhodolith form) from New Caledonia. Alizarin red S staining was used to mark 43 rhodolith branches and helped determine extension rates over the rhodoliths' la...

Paleomagnetic dating of ferricretes in New Caledonia. Preliminary results

Although the description of the emplacement (Cluzel et al., 2001) and the weathering (Trescases, 1975; Latham, 1986; Chevillotte et al., 2006) of the New Caledonia peridotites is well documented in the literature, the knowledge and the age of formati...

Discovery of Early Cretaceous rocks in New Caledonia; new geochemical and U-Pb zircon age constraints on the transition from subduction to marginal br...

New U-Pb dating of detrital zircon and geochemical features of Permian-Mesozoic arc-derived volcanic rocks and volcaniclastic turbidites (greywackes), when compared to the volcanic rocks associated with unconformable Late Cretaceous shallow-water sed...

Discovery of Early Cretaceous rocks in New Caledonia; new geochemical and U-Pb zircon age constraints on the transition from subduction to marginal br...

New U-Pb dating of detrital zircon and geochemical features of Permian-Mesozoic arc-derived volcanic rocks and volcaniclastic turbidites (greywackes), when compared to the volcanic rocks associated with unconformable Late Cretaceous shallow-water sed...

Paleomagnetic dating of ferricretes in New Caledonia. Preliminary results

Although the description of the emplacement (Cluzel et al., 2001) and the weathering (Trescases, 1975; Latham, 1986; Chevillotte et al., 2006) of the New Caledonia peridotites is well documented in the literature, the knowledge and the age of formati...

The Pacific Ocean 2020 Challenge

Il s'agit d'une note qui rappelle les challenges à relever pour 2020 au sujet de la conservation (destruction des habitat, pêche excessive, changement climatique). Elle rappelle simplement la nécessité de mettre en place un partenariat avec l'ens...

Atelier sur les indicateurs environnementaux en eau douceL'indice Biotique de la Nouvelle-Calédonie (IBNC)

Session plénière 2 : L'indice IBNC Présentation de l'IBNC par Nathalie MARY. Elle précise le contexte général de sa mise en place avant d'évoquer ses caractéristiques (nombre de stations, leur localisation, échantillonnage, traitement, scor...