%0 Journal Article %9 ACL : Articles dans des revues avec comité de lecture non répertoriées par l'AERES %A Boucher, G. %A Clavier, Jacques %A Garrigue, Claire %T Estimation of bottom ammonium affinity in the New Caledonian lagoon %D 1994 %L fdi:39878 %G ENG %J Coral Reefs %@ 0722-4028 %K LAGON ; SEDIMENT ; BENTHOS ; AMMONIUM ; FLUX ; CORRELATION NUMERIQUE ; MACROPHYTE ; CYCLE DE L'AZOTE %K NOUVELLE CALEDONIE %P 13-19 %R 10.1007/BF00426430 %U https://www.documentation.ird.fr/hor/fdi:39878 %> https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/39878.pdf %V 13 %W Horizon (IRD) %X 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) %$ 032MILPHY