Le Bouteiller Aubert auteur aut IRD Blanchot Jean auteur aut IRD text journalArticle eng text/pdf reformatted digital access In January 1991, the Equatorial Pacific enrichment area covered a belt more than 11000 km long, with surface nitrate concentration ... near the Galapagos Islands, decreasing westwards and desappearing beyond 167°E. In this area, the amount of chlorophyll a (Chla) did not change significantly from one end of the upwelling to the other, and was very low everywhere ... Schematically, in spite of the typical longitudinal gradients of temperature and nutrients, all data of chlorophyll, size distribution and cell numbers clearly indicate that an extreme monotony characterizes the distribution of phytoplankton all along the enrichment area due to the Equatorial upwelling, covering 11 million km2 for mean upwelling conditions. (D'après résumé d'auteur) specialized PHYTOPLANCTON CHLOROPHYLLE ABONDANCE DISTRIBUTION SPATIALE UPWELLING PACIFIQUE EQUATORIAL 032MILPHY 29 175-179 1991 https://www.documentation.ird.fr/hor/fdi:39886 [F B39886] https://www.documentation.ird.fr/hor/fdi:39886 https://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_6/b_fdi_35-36/39886.pdf IRD - Base Horizon / Pleins textes 1994-08-08 2015-07-02 fdi:39886 fre