Reygondeau Gabriel auteur aut IRD Longhurst A. auteur aut IRD Martinez Elodie auteur aut IRD Beaugrand G. auteur aut IRD Antoine D. auteur aut IRD Maury Olivier auteur aut IRD text journalArticle eng text/pdf born digital access In recent decades, it has been found useful to partition the pelagic environment using the concept of biogeochemical provinces, or BGCPs, within each of which it is assumed that environmental conditions are distinguishable and unique at global scale. The boundaries between provinces respond to features of physical oceanography and, ideally, should follow seasonal and interannual changes in ocean dynamics. But this ideal has not been fulfilled except for small regions of the oceans. Moreover, BGCPs have been used only as static entities having boundaries that were originally established to compute global primary production. In the present study, a new statistical methodology based on non-parametric procedures is implemented to capture the environmental characteristics within 56 BGCPs. Four main environmental parameters (bathymetry, chlorophyll a concentration, surface temperature, and salinity) are used to infer the spatial distribution of each BGCP over 1997-2007. The resulting dynamic partition allows us to integrate changes in the distribution of BGCPs at seasonal and interannual timescales, and so introduces the possibility of detecting spatial shifts in environmental conditions. specialized Biogeography Biogeochemical province Biome Seasonality Meteo-oceanic oscillations 032 034 082 27 4 1046-1058 2013 0886-6236 https://www.documentation.ird.fr/hor/fdi:010061476 10.1002/gbc.20089 0886-6236 [F B010061476] https://www.documentation.ird.fr/hor/fdi:010061476 https://www.documentation.ird.fr/intranet/publi/2014/02/010061476.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2014-03-03 2017-08-23 fdi:010061476 fre