Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1842 résultats pour les termes de recherche: phanérogames marines OR herbier

Affichage des résultats: 371 à 380

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Surveillance du milieu de la grande rade de Nouméa - Suivi milieu marin SLN 2014/2015 : Campagne 2014

Dans le cadre de l'arrêté ICPE du 12 novembre 2009 autorisant la Société Le Nickel à exploiter son usine de traitement de minerai de nickel de Doniambo, la SLN a missionné SOPRONER pour réaliser la surveillance du milieu marin dans la Grande R...

Suivi du milieu marin autour du site minier de Thio - Volet 1 : Résultats campagne annuelle 2016

En 2016, la Société Le Nickel (SLN) a mis en place un suivi environnemental du milieu marin de l'ensemble des sites du bord de mer sous l'influence de ses activités. Dans ce contexte, la zone de Thio, commune de la côte Est où la SLN exploite le...

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....

Observer, évaluer et suivre la biodiversité sous marine des lagons : Intérêt des techniques vidéo rotatives en haute dé:nition. Où en est-on en...

This article first draws up a balance sheet of all various implemented techniques to observe and monitor the shallow marine biodiversity. Then the article focuses on the techniques of the rotating high resolution submarine video and their implementat...

Partial characterization of an exopolysaccharide secreted by a marine bacterium, Vibrio neocaledonicus sp nov., from New Caledonia

Aims Exopolysaccharides (EPS) are industrially valuable molecules with numerous useful properties. This study describes the techniques used for the identification of a novel Vibrio bacterium and preliminary characterization of its EPS. Methods and Re...

Numerical and experimental characterisation of interactions between two marine current turbines

The implantation and deployment of marine current turbine arrays depend on the understanding of their interactions. Based on a priori suggestions about the layout of marine energy converter arrays, we propose to highlight interactions effects between...

Are planktonic larvae of marine benthic invertebrates too scarce to compete within species?

Several models for the evolution of complex life histories have assumed a carrying capacity for both larval and postlarval stages. In addition, the densities of larvae in laboratory experiments are often so high that there is competition for food. Pu...

Fishers' perceptions as indicators of the performance of Marine Protected Areas (MPAs)

How users perceive the performance of Marine Protected Areas (MPAs) is fundamental for the social acceptance of these zones. Moreover, their perceptions may be relevant for monitoring the effects of MPAs on extractive activities. This study analyzes ...

Herbivorous fishes and the potential of Caribbean marine reserves to preserve coral reef ecosystems

1. The development of macroalgae to the detriment of corals is now one of the major threats to coral reefs. Herbivorous fishes are partly responsible for algal regulation on coral reefs and their overexploitation favours the shift from scleractinian ...

The gymnochromes : novel marine brominated phenanthroperylenequinone pigments from the stalked crinoid Gymnocrinus richeri

INVERTEBRE AQUATIQUE;PIGMENT;EXTRACTION;STRUCTURE CHIMIQUE;CRINOIDE;GYMNOCHROME