FN Archimer Export Format
PT J
TI Phytoplankton reaction to an intense storm in the north-western Mediterranean Sea
BT 
AF Barrillon, Stéphanie
   Fuchs, Robin
   Petrenko, Anne A.
   Comby, Caroline
   Bosse, Anthony
   Yohia, Christophe
   Fuda, Jean-Luc
   Bhairy, Nagib
   Cyr, Frédéric
   Doglioli, Andrea M.
   Grégori, Gérald
   Tzortzis, Roxane
   d'Ovidio, Franscesco
   Thyssen, Melilotus
AS 1:1;2:1,2;3:1;4:1;5:1;6:3;7:1;8:1;9:4;10:1;11:1;12:1;13:5;14:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;14:;
C1 Aix Marseille Univ., Université de Toulon, CNRS, IRD, MIO UM 110 , 13288, Marseille, France
   Aix Marseille Univ, CNRS, Centrale Marseille, I2M, Marseille, France
   Aix Marseille Univ., Université de Toulon, CNRS, IRD, OSU Pytheas UAR 3470 , 13288, Marseille, France
   Fisheries and Oceans Canada, Northwest Atlantic Fisheries Centre, St. John’s, Canada
   LOCEAN, UMR CNRS / Université P. et M. Curie / IRD / MNHM, F-75005 Paris, France
C2 UNIV AIX MARSEILLE, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   UNIV AIX MARSEILLE, FRANCE
   MPO, CANADA
   UNIV PARIS 06, FRANCE
SI TOULON
SE CNRS
IN DOAJ
IF 4.9
TC 2
UR https://archimer.ifremer.fr/doc/00783/89481/94977.pdf
   https://archimer.ifremer.fr/doc/00783/89481/99062.pdf
LA English
DT Article
CR FUMSECK
BO Téthys II
AB  The study of extreme weather events and their impact on ocean physics and biogeochemistry is challenging due to the difficulty of collecting in situ data. Yet, recent research pointed out the major influence of such physical forcing events on microbiological organisms. Moreover, such violent event occurrences may rise in the future in the context of global change. In May 2019, an intense storm occurred in the Ligurian Sea (north-western Mediterranean Sea) and was captured during the FUMSECK cruise. In situ multi-platform measurements (vessel-mounted ADCP, thermosaligraph, fluorometer, flow cytometer, a Moving Vessel Profiler equipped with a multi-sensor towed vehicle, and glider) along with satellite data and a 3D atmospherical model were used to characterise the fine-scale dynamics occurring in the impacted oceanic zone. The most affected area was marked by a lower water temperature (1 °C colder), and an increase by a factor two in surface chlorophyll-a and seven in nitrate concentrations, exhibiting strong gradients with respect to the surrounding waters. Our results show that this storm led to a deepening of the mixed layer depth from 15 to 50 m and a dilution of the deep chlorophyll maximum. As a result, the surface phytoplankton biomass of most groups identified by automated flow cytometry increased by up to a factor of two. Conversely, the phytoplankton carbon-chlorophyll ratio of most groups dropped down by a factor of two, evidencing significant changes in the phytoplankton cell compositions. These results suggest that the role of storms on the biogeochemistry and ecology of the Mediterranean open sea may be underestimated and highlight the need for high-resolution measurements coupling physics and biology during these events. 
PY 2023
PD JAN
SO Biogeosciences
SN 1726-4170
PU Copernicus GmbH
VL 20
IS 1
UT 000912024400001
BP 141
EP 161
DI 0.5194/bg-20-141-2023
ID 89481
ER

EF