Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 2309 résultats pour les termes de recherche: ~riviere OR creek OR eau douce

Affichage des résultats: 761 à 770

h

h

Concentration en métaux dans les sédiments

Les sédiments constituent une sorte de mémoire. En effet, ils enregistrent les évolutions des apports en sédiments. Or les sédiments transportent des métaux. Ils accumulent les métaux et les relarguent sous certaines conditions environnemental...

Diversity of Halimeda (Bryopsidales, Chlorophyta) in New Caledonia : a combined morphological and molecular study

Halimeda is a genus of calcified and segmented green macroalgae in the order Bryopsidales. In New Caledonia, the genus is abundant and represents an important part of the reef flora. Previous studies recorded 19 species that were identified using mor...

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...

A model-based evaluation of Marine Protected Areas: the example of eastern Baltic cod (Gadus morhua callarias L.)

The eastern Baltic cod stock collapsed as a consequence of climate-driven adverse hydrographic conditions and over fishing and has remained at historically low levels. Spatio-temporal fishing closures [Marine Protected Areas (MPAs)] have been impleme...

Adult and larval traits as determinants of geographic range size among tropical reef fishes

Most marine organisms disperse via ocean currents as larvae, so it is often assumed that larval-stage duration is the primary determinant of geographic range size. However, empirical tests of this relationship have yielded mixed results, and alternat...

L'acidification de l'Océan

This text, directed to the general public exposes, in first part, on the educational point of view, the mechanisms of ocean acidification resulting from the trapping of the carbon dioxide. Then the text presents a state of the knowledge about the spe...

Un bilan de la télédétection appliquée aux milieux coralliens

The aim of this paper is to present in a practical fashion the status of the use of remote sensing for the study of coral reef environments through the analysis of work published in the years 1980-2000. We review the scales of the potential work and ...

Expression, tissue localization and synergy of antimicrobial peptides and proteins in the immune response of the oyster Crassostrea gigas

Diverse families of antimicrobial peptides and proteins have been described in oysters. We investigated here how antimicrobials are involved in the immune response against a pathogenic strain of Vibrio splendidus. Oyster antimicrobials were shown to ...

Guide pour le suivi de la qualité du milieu marin en Nouvelle-Calédonie

This guide is intended to facilitate the implementation of specifications for marine environmental monitoring in New Caledonia. It is intended for public or private environmental actors. He provides a set of information on marine monitoring: summary ...

Deep circulation in the equatorial Atlantic Ocean

In the Atlantic Ocean, the northward export of warm surface water is compensated by a southward flow of cold North Atlantic Deep Water (NADW). The NADW is transported southward along the American continental margin within the Deep Western Boundary Cu...