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: 421 à 430

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Rapport d'activité 2012 de l'OEIL

Le rapport d'activité dresse un bilan détaillé des actions, missions et de la stratégie de l'OEIL en 2012. IL intègre également un volet budgétaire.

VALE Nouvelle-Calédonie - Demande d’autorisation d’exploitation minière - Livret D – Gestion et protection des eaux superficielles et souterra...

Le présent dossier constitue le VOLET F du livret D de la demande d'autorisation d'exploitation minière du gisement de Goro par la Société Vale NC.

Heterogeneity in hidden developmental processes: interference and analysis for stage-structured populations in fluctuating environments

In this work, I present a new matrix-based model for biological stage-structured populations (SSPs) that greatly improves the characterisation of variation in development times by tracking individual histories within each stage. Neglecting such heter...

Population structure of humpback whales in the western and central South Pacific Ocean as determined by vocal exchange among populations

For cetaceans, population structure is traditionally determined by molecular genetics or photographically identified individuals. Acoustic data, however, has provided information on movement and population structure with less effort and cost than tra...

Podotreme affinities of Raninoides sp. and Lyreidus brevifrons : evidence from spermatozoal ultrastructure (Crustacea : Brachyura : Raninoidea)

Spermatozoal synapomorphies which singly or collectively distinguish #Raninoidea$ are : (1) the presence of single (#Ranina$), #Raninoides$) or multiple (#Lyreidus$) keel-like projections of the acrosomal zone (#Ranina$, #Raninoides$) and an homologo...

Oxide weathering and trace metal release by bacterial reduction in a New Caledonia Ferralsol

Bacterial reduction of Fe- and Mn-oxides was studied in a surface horizon of a New Caledonian Ferralsol in batch experiments. Two treatments were imposed containing different sources of organic matter (soil organic matter with or without glucose addi...

Effect of Coarse Particle Volume Fraction on the Yield Stress of Muddy Sediments from Marennes Oleron Bay

Coastal erosion results from a combination of various factors, both natural and humaninduced, which have different time and space patterns. In addition, uncertainties still remain about the interactions of the forcing agents, as well as on the signif...

Underwater video techniques for observing coastal marine biodiversity: A review of sixty years of publications (1952–2012)

Underwater video techniques are increasingly used in marine ecology studies. Technological progress regarding video cameras, sensors (such as sounders), battery life and information storage make these techniques now accessible to a majority of users....

Parallel ecological filtering of ultramafic soils in three distant island floras

Aim Alexander von Humboldt observed that plant communities on different continents but under similar climatic conditions shared few common species but often contained representatives of the same genera or higher taxonomic groups. To test if this obse...

Rapport de l’inventaire ichtyologique et carcinologique dans le bassin versant de la rivière des Lacs - Campagne de septembre-octobre 2012

Dans une démarche pour le renouvellement de concessions, inventaire de la faune ichtyologique et carcinologique, a été demandé par Vale NC, au bureau d'études ERBIO, sur cinq cours d'eau. Les cours d'eau concernés sont : - Creek Nicolas (conc...