Observatoire de l'environnement Nouvelle Calédonie

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

Affichage des résultats: 571 à 580

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Les herbiers

Une prairie sous-marine, refuge et garde-manger du lagon De nombreuses espèces utilisent les herbiers comme refuges ou garde-manger. Certains poissons y grandissent avant de migrer vers les récifs. Les dugongs et les tortues broutent les plantes q...

Emissaire marin | Documentation en téléchargement

Documentation en téléchargement - [Le dossier de l'OEIL MAG sur le Grand Tuyau (mai 2012)](http://www.oeil.nc/sites/default/files/pageflip/22138/om3_dossier_flip/index.html) - [Le communiqué de presse de Vale Nouvelle-Calédonie (12/11/13)](/si...

Particules de terre

La destruction de la végétation et l'érosion des sols est à l'origine des apports particulaires dans les rivières et dans le lagon. Cette destruction a principalement pour causes : - l'exploitation minière ; - les développements urbain et ...

Phytoplankton community structure in the VAHINE mesocosm experiment

The VAHINE mesocosm experiment was designed to trigger a diazotroph bloom and to follow the subsequent transfer of diazotroph-derived nitrogen (DDN) in the rest of the food web. Three mesocosms (50m(3)) located inside the Noumea lagoon (New Caledonia...

Released coral mucus does not enhance planktonic N-2 fixation rates

Dinitrogen (N-2) fixation by prokaryotic microorganisms provides bioavailable nitrogen in oligotrophic marine ecosystems such as coral reefs. The widespread though largely unknown heterotrophic diazotrophs require dissolved organic matter (DOM) for t...

Diurnal temporal patterns of the diversity and the abundance of reef fishes in a branching coral patch in New Caledonia

Small-scale spatial and temporal variability in animal abundance is an intrinsic characteristic of marine ecosystems but remains largely unknown for most animals, including coral reef fishes. In this study, we used a remote autonomous unbaited video ...

Relative importance of water column vs zooplankton variables in the determination of late-stage larval fish assemblage structure in coastal waters of ...

The relationship between fish larvae and their zooplanktonic prey has not been fully explored for late-stage larvae of coral-reef fish in lagoonal environments. However, compared to most temperate taxa, these larvae are characterized by strong sensor...

Assessing threats from coral and crustose coralline algae disease on the reefs of New Caledonia

The present study reports the results of the first quantitative survey of lesions on coral and crustose coralline algae (CCA) on reefs in the lagoon of New Caledonia. Surveys on inshore and offshore reefs were conducted at 13 sites in 2010, with 12 s...

Genetic diversity of the harmful family Kareniaceae (Gymnodiniales, Dinophyceae) in France, with the description of Karlodinium gentienii sp. nov.: A ...

The family Kareniaceae is mostly known in France for recurrent blooms of Karenia mikimotoi in the Atlantic, English Channel, and Mediterranean Sea and for the unusual green discoloration in the saltwater lagoon of Diana (Corsica) caused by Karlodiniu...

Biological data of pygmy killer whale (Feresa attenuata) from a mass stranding in New Caledonia (South Pacific) associated with hurricane Jim in 2006

Despite its distribution throughout the tropics and subtropics, the pygmy killer whale (Feresa attenuata) is one of the most poorly known species of odontocetes (Cetacea: Delphinidae). We used the opportunity of a mass stranding of six animals in New...