@article{fdi:39878, title = {{E}stimation of bottom ammonium affinity in the {N}ew {C}aledonian lagoon}, author = {{B}oucher, {G}. and {C}lavier, {J}acques and {G}arrigue, {C}laire}, editor = {}, language = {{ENG}}, abstract = {{A}mmonium affinity of {N}ew {C}aledonia 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. {A}mmonium chloride was injected into enclosures pushed into the sediment ... {A}mmonium kinetic uptake was then followed for two yours. {G}rey-sand bottom displayed the highest affinity was the same order of magnitude. {M}acrophytes, and microphytes (when macrophytes are absent), account for the bulk of ammonium bottom uptake. {A}s 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}'apr{\`e}s r{\'e}sum{\'e} d'auteur)}, keywords = {{LAGON} ; {SEDIMENT} ; {BENTHOS} ; {AMMONIUM} ; {FLUX} ; {CORRELATION} {NUMERIQUE} ; {MACROPHYTE} ; {CYCLE} {DE} {L}'{AZOTE} ; {NOUVELLE} {CALEDONIE}}, booktitle = {}, journal = {{C}oral {R}eefs}, volume = {13}, numero = {}, pages = {13--19}, ISSN = {0722-4028}, year = {1994}, DOI = {10.1007/{BF}00426430}, URL = {https://www.documentation.ird.fr/hor/fdi:39878}, }