Publications des scientifiques de l'IRD

Boucher G., Clavier Jacques, Garrigue Claire. (1994). Estimation of bottom ammonium affinity in the New Caledonian lagoon. Coral Reefs, 13, p. 13-19. ISSN 0722-4028.

Titre du document
Estimation of bottom ammonium affinity in the New Caledonian lagoon
Année de publication
1994
Type de document
Article
Auteurs
Boucher G., Clavier Jacques, Garrigue Claire
Source
Coral Reefs, 1994, 13, p. 13-19 ISSN 0722-4028
Ammonium affinity of New Caledonia lagoon benthic communities was measured during the course of 33 in situ enrichment experiments, in order to estimate the contribution of benthos to ammonium fluxes. Ammonium chloride was injected into enclosures pushed into the sediment ... Ammonium kinetic uptake was then followed for two yours. Grey-sand bottom displayed the highest affinity was the same order of magnitude. Macrophytes, and microphytes (when macrophytes are absent), account for the bulk of ammonium bottom uptake. As a result, grey-sand bottoms with their dense macrophyte cover represent a sink for water column nitrogen and play a key role in nutrient cycling of the lagoon. (D'après résumé d'auteur)
Plan de classement
Milieux physico-chimique [032MILPHY]
Descripteurs
LAGON ; SEDIMENT ; BENTHOS ; AMMONIUM ; FLUX ; CORRELATION NUMERIQUE ; MACROPHYTE ; CYCLE DE L'AZOTE
Description Géographique
NOUVELLE CALEDONIE
Localisation
Fonds IRD [F B39878] ; Montpellier (Centre IRD)
Identifiant IRD
fdi:39878
Contact