Observatoire de l'environnement Nouvelle Calédonie

Il y a environ 1774 résultats pour les termes de recherche: eaux usées

Affichage des résultats: 341 à 350

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Cricket calling communities as an indicator of the invasive ant Wasmannia auropunctata in an insular biodiversity hotspot

Invasive species are a major concern for the maintenance of ecosystem services and biodiversity but are difficult to mitigate. Upstream solutions to prevent their impact, including their detection, are needed. Wasmannia auropunctata, an invasive ant ...

Belowground nitrogen transfer from Pterocarpus officinalis to Taro under field and controlled conditions

Background and Aim: In Guadeloupe's swamp forests, smallholder farmers traditionally cultivate flooded Colocasia esculenta (taro) monocultures under the canopy of Pterocarpus officinalis stands, without the use of pesticides and fertilizers. To bette...

Évaluation de la qualité écologique du creek de la Baie Nord suite à la fuite d'acide sur le site de Vale-NC le 8 mai 2012

Suite à un incident survenu au niveau de l'unité de production d'acide sulfurique du complexe industriel de Vale-NC, une fuite de plusieurs dizaines de m3 d'acide a eu lieu. Afin de vérifier l'absence d'impact de cet incident sur le milieu naturel...

Les lagons de Nouvelle-Calédonie : diversité récifale et écosystèmes associés - Site 1 : Grand Lagon Sud

Dossier de présentation du site "Grand Lagon Sud", un des six sites constituant le "bien en série" des lagons de Nouvelle-Calédonie inscrit au patrimoine mondial. Ce dossier fait partie du dossier d'ensemble : "[Les lagons de Nouvelle-Calédonie ...

Évaluation de l’état écologique du creek de la Baie Nord suite à l’incident industriel sur le site de Vale-Nouvelle Calédonie septembre 2012

Suite au débordement d'une solution acide (300 m3) au niveau d'une cuve de neutralisation partielle au sein du site de Vale Nouvelle-Calédonie dans la nuit du 3 au 4 septembre 2012, l'OEIL a mandaté le bureau d'études Biotop pour évaluer la pré...

Selection and characterization of potential probiotic bacteria for Litopenaeus stylirostris shrimp hatcheries in New Caledonia

In New Caledonia, shrimp hatcheries are confronted with mass mortality in the larval stages, a phenomenon poorly understood as no specific causative agent has been identified. This has resulted in an excessive use of prophylactic antibiotics, althoug...

Using EUNIS habitat classification for benthic mapping in European seas: Present concerns and future needs

The EUNIS (European Union Nature Information System) habitat classification system aims to provide a common European reference set of habitat types within a hierarchical classification, and to cover all terrestrial, freshwater and marine habitats of ...

New formula and conversion factor to compute basic wood density of tree species using a global wood technology database

Premise of the Study : Basic wood density is an important ecological trait for woody plants. It is used to characterize species performance and fitness in community ecology and to compute tree and forest biomass in carbon cycle studies. While wood de...

Whales in warming water : assessing breeding habitat diversity and adaptability in Oceania's changing climate

In the context of a changing climate, understanding the environmental drivers of marine megafauna distribution is important for conservation success. The extent of humpback whale breeding habitats and the impact of temperature variation on their avai...

Effects of ultramafic topsoil stockpiling during mine activities on its microbial diversity and other microbiological and physicochemical characterist...

Nowadays, ecological restoration is considered the best solution for the rehabilitation of mining-degraded areas, particularly when it concerns valuable ecosystems. This is the case in New Caledonia, a hot spot of biodiversity, with 82% of endemic pl...