Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1355 résultats pour les termes de recherche: Récifs coralliens OR coraux OR récif

Affichage des résultats: 571 à 580

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Extent of mangrove nursery habitats determines the geographic distribution of a coral reef fish in a South-Pacific archipelago

Understanding the drivers of species' geographic distribution has fundamental implications for the management of biodiversity. For coral reef fishes, mangroves have long been recognized as important nursery habitats sustaining biodiversity in the Wes...

Water mass analysis of the Coral Sea through an optimum multiparameter method

A water mass analysis of the Coral Sea thermocline waters provides a description of their distribution, pathways and mixture based on recent oceanographic cruises in this region of strong western boundary currents. The Optimum Multiparameter method i...

Sustainability of exploited marine ecosystems through protected areas : a viability model and a coral reef case study

RESSOURCES HALIEUTIQUES;STOCK;DYNAMIQUE DE POPULATION;MODELE;GESTION DES PECHES;ANALYSE DE VARIANCE;ETUDE DE CAS;AIRE MARINE PROTEGEE

Black corals (Antipatharia) of New Caledonia;Compendium of marine species from New Caledonia : second edition

CORAIL;INVERTEBRE AQUATIQUE;INVENTAIRE FAUNISTIQUE;DIVERSITE SPECIFIQUE;ARCHIPEL

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...

Designing indicators for assessing the effects of marine protected areas on coral reef ecosystems: A multidisciplinary standpoint

The present paper aims at identifying and assessing indicators of the effects of Marine Protected Areas (MPAs) in coral reef regions, based on a bibliography review in ecology, economics and social sciences. First the various effects Studied within e...

Diazotrophs : a non-negligible source of nitrogen for the tropical coral Stylophora pistillata

Corals aremixotrophs: they are able to fix inorganic carbon through the activity of their symbiotic dinoflagellates and to gain nitrogen from predation on plankton and uptake of dissolved organic and inorganic nutrients. They also live in close assoc...

Unexpected high vulnerability of functions in wilderness areas : evidence from coral reef fishes

High species richness is thought to support the delivery of multiple ecosystem functions and services under changing environments. Yet, some species might performunique functional roles while others are redundant. Thus, the benefits of high species r...

Annual sediment primary production and respiration in a large coral reef lagoon (SW New Caledonia)

LAGON;RECIF CORALLIEN;SEDIMENT;PRODUCTION PRIMAIRE;RESPIRATION;BENTHOS;PHOTOSYNTHESE;METABOLISME;ECHANTILLONNAGE

Comparison of visual census and high definition video transects for monitoring coral reef fish assemblages

Monitoring fish and underwater habitats, particularly in and around marine protected areas (MPAs) requires non-destructive observation methods. This is generally achieved by divers conducting underwater visual censuses (UVC), but video-based techniqu...