Service interruption on Monday 11 July from 12:30 to 13:00: all the sites of the CCSD (HAL, Epiciences, SciencesConf, AureHAL) will be inaccessible (network hardware connection).
Skip to Main content Skip to Navigation
Journal articles

Interannual variability of the Mediterranean trophic regimes from ocean color satellites

Abstract : D'Ortenzio and Ribera d'Alcalà (2009, DR09 hereafter) divided the Mediterranean Sea into " bioregions " based on the climatological seasonality (phenology) of phy-toplankton. Here we investigate the interannual variability of this bioregionalization. Using 16 years of available ocean color observations (i.e., SeaWiFS and MODIS), we analyzed the spatial distribution of the DR09 trophic regimes on an annual basis. Additionally, we identified new trophic regimes, exhibiting seasonal cycles of phytoplankton biomass different from the DR09 climatological description and named " Anomalous ". Overall, the classification of the Mediter-ranean phytoplankton phenology proposed by DR09 (i.e., " No Bloom " , " Intermittently " , " Bloom " and " Coastal "), is confirmed to be representative of most of the Mediterranean phytoplankton phenologies. The mean spatial distribution of these trophic regimes (i.e., bioregions) over the 16 years studied is also similar to the one proposed by DR09, although some annual variations were observed at regional scale. Discrepancies with the DR09 study were related to interannual variability in the sub-basin forcing: winter deep convection events, frontal instabilities, inflow of Atlantic or Black Sea Waters and river runoff. The large assortment of phytoplank-ton phenologies identified in the Mediterranean Sea is thus verified at the interannual scale, further supporting the " sen-tinel " role of this basin for detecting the impact of climate changes on the pelagic environment.
Document type :
Journal articles
Complete list of metadata

Cited literature [64 references]  Display  Hide  Download

https://hal.sorbonne-universite.fr/hal-01341963
Contributor : Gestionnaire 2 HAL-UPMC Connect in order to contact the contributor
Submitted on : Tuesday, July 5, 2016 - 11:00:24 AM
Last modification on : Monday, May 16, 2022 - 7:02:03 AM
Long-term archiving on: : Thursday, October 6, 2016 - 11:04:25 AM

File

bg-13-1901-2016.pdf
Publication funded by an institution

Licence


Distributed under a Creative Commons Attribution 4.0 International License

Identifiers

Citation

Nicolas Mayot, Fabrizio d'Ortenzio, Maurizio Ribera D 'Alcalà, Héloïse Lavigne, Hervé Claustre. Interannual variability of the Mediterranean trophic regimes from ocean color satellites. Biogeosciences, European Geosciences Union, 2016, 13 (6), pp.1901-1917. ⟨10.5194/bg-13-1901-2016⟩. ⟨hal-01341963⟩

Share

Metrics

Record views

125

Files downloads

160