Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1140 résultats pour les termes de recherche: lagon OR lagoon

Affichage des résultats: 581 à 590

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Robust assessment of population trends in marine mammals applied to New Caledonian humpback whales [plus Supplementary material]

Estimating population trends for long-lived, migratory animals is challenging but essential for managing populations. Here we propose using a simple but potentially robust method, the direct estimation of population growth rate (PGR) from capture-rec...

Monthly variability of self-recruitment for a coral reef damselfish

Understanding the dynamics of marine populations is critical to managing marine systems effectively and requires information on patterns of population dispersal and connectivity that are still poorly known. We used transgenerational marking to study ...

Tidal variability of CO2 and CH4 emissions from the water column within a Rhizophora mangrove forest (New Caledonia)

We performed a preliminary study to quantify CO2 and CH4 emissions from the water column within a Rhizophora spp. mangrove forest. Mean CO2 and CH4 emissions during the studied period were 3.35 +/- 3.62 mmolC m(-2) h(-1) and 18.30 +/- 27.72 mu molC m...

Trichodesmium and other planktonic cyanobacteria in New Caledonian waters (SW tropical Pacific) during an El Nino episode

Contributions of filamentous and picoplanktonic cyanobacteria to the phytoplankton community structure were examined in New Caledonian waters during the 2001-2003 El Nino period at 2 ocean stations (Loyalty Channel and Santal Bay) and 1 coral-reef la...

A record of mining and industrial activities in New Caledonia based on trace elements in rhodolith-forming coralline red algae

We investigate the ability of coralline red algae to record historical nickel mining activity that occurred between the early 1960s and 1981 in the Coulee River watershed, southwest New Caledonia. Laser ablation inductively coupled plasma mass spectr...

Metabolomic variability of four macroalgal species of the genus Lobophora using diverse approaches

Among comparative metabolomic studies used in marine sciences, only few of them are dedicated to macroalgae despite their ecological importance in marine ecosystems. Therefore, experimental data are needed to assess the scopes and limitations of diff...

Experimental assessment of oyster transfers as a vector for macroalgal introductions

Introduction of non-indigenous species can alter marine communities and ecosystems. In shellfish farming, transfer of livestock, especially oysters, is a common practice and potentially constitutes a pathway for non-indigenous introductions. Many spe...

L'OEIL Magazine 2, Octobre-Novembre-Décembre 2011

en bref [BIODIVERSITÉ] Liste rouge des espèces menacées [INFORMATION] Pour tous les publics [ÉROSION] Un œil sur l'érosion [CONTRÔLE] Assurer la fiabilité des données environnementales l'essentiel - Un parc à résidus à surveiller -...

Amélioration des connaissances sur les tricôts rayés en Province sud et leur utilisation en tant que bio indicateurs Rapport intermédiaire état ...

Le rapport intermédiaire sur l'amélioration des connaissances des tricots rayés datant du 22 juin 2010, présente l'effort de terrain qui a été déployé et donne aussi les conclusions d'analyses préliminaires.

Étude pilote sur la faisabilité d’équiper des dugongs de balises satellitaires afin d’étudier leurs déplacements en Nouvelle-Calédonie - Rap...

Peu d'information sont disponibles sur l'écologie spatiale du dugong dans le lagon néo-calédonien pour permettre la mise en place d'actions de conservation efficaces et adaptées à l'espèce. C'est pourquoi il est prévu dans le cadre du « plan ...