The use of photosynthesis inhibitor (DCMU) for #in situ$ metabolic and primary production studies on soft bottom benthos Garrigue Claire auteur aut IRD Clavier Jacques auteur aut IRD Boucher G. auteur aut IRD text journalArticle eng text/pdf reformatted digital access A selective chemical photosynthesis inhibitor, DCMU (Dichorophenyl-dimethylurea), dissolved in DMSO (Dimethyl sulfoxide) was substituted for the dark incubation method commonly used to measure the oxygen consumption in metabolic and primary production studies. We compared oxygen fluxes during light incubations with DCMU and dark incubations procedure, on soft bottom benthos. For this purpose, we studied the effects of different DCMU concentrations. A concentration of 5.10-5 mol 1-1 inside a clear incubation enclosure completely inhibits photosynthesis without affecting the metabolism of soft bottom benthos. (Résumé d'auteur) specialized PRODUCTION PRIMAIRE BENTHOS METHODE MESURE IN SITU INHIBITEUR DCMU NOUVELLE CALEDONIE 032MILPHY Hydrobiologia 246 141-145 1992 0018-8158 https://www.documentation.ird.fr/hor/fdi:39880 0018-8158 [F B39880] https://www.documentation.ird.fr/hor/fdi:39880 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/39880.pdf IRD - Base Horizon / Pleins textes 1994-08-08 2015-07-02 fdi:39880 fre