FN Archimer Export Format
PT J
TI Phytoplanktonic response to simulated volcanic and desert dust deposition events in the South Indian and Southern Oceans
BT 
AF Geisen, Carla
   Ridame, Céline
   Journet, Emilie
   Delmelle, Pierre
   Marie, Dominique
   Lo Monaco, Claire
   Metzl, Nicolas
   Ammar, Rawaa
   Kombo, Joelle
   Cardinal, Damien
AS 1:1;2:1;3:2;4:3;5:4;6:1;7:1;8:2,3;9:1;10:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 Sorbonne Université, LOCEAN—IPSL Laboratoire d'Océanographie et du Climat, Expérimentations et Approches Numériques UMR 7159, (SU CNRS MNHN IRD) Paris, France
   LISA (Laboratoire Interuniversitaire des Systèmes Atmosphériques), UMR 7583, CNRS Université Paris‐Est Créteil et Université de Paris, Institut Pierre Simon Laplace (IPSL) Créteil ,France
   Earth and Life Institute, Environmental Sciences UCLouvain Louvain‐la‐Neuve, Belgium
   CNRS Sorbonne Université, UMR 7144 Adaptation et Diversité en Milieu Marin Roscoff ,France
C2 UNIV SORBONNE, FRANCE
   CNRS, FRANCE
   UNIV CATHOLIC LOUVAIN, BELGIUM
   CNRS, FRANCE
IF 4.5
TC 3
UR https://archimer.ifremer.fr/doc/00775/88667/94374.pdf
   https://archimer.ifremer.fr/doc/00775/88667/94375.docx
LA English
DT Article
CR OISO - OCÉAN INDIEN SERVICE D'OBSERVATION
   VT 163 / OISO-29
BO Marion Dufresne
AB Contrasting concentrations of macronutrients and micronutrients induce different nutrient limitations of the oceanic productivity and shape the composition of the phytoplankton communities of the South Indian Ocean and Indian sector of the Southern Ocean. o assess the phytoplankton response to nutrient release by desert dust and volcanic ash aerosols in these distinct biogeochemical regions, we conducted microcosm incubation experiments. A dry or wet deposition of either dust from Patagonia or ash from the Icelandic volcano Eyjafjallajökull or dissolved nutrients (Si, Fe, N and/or P) were added to trace metal clean incubations of surface seawater collected from five stations. These deposition experiments enabled the measurement of the biological response along with solubility calculations of nutrients. Both types of aerosols alleviated the iron deficiency occurring in the Southern Ocean during austral summer and resulted in a 24–110% enhancement of the primary production, depending on the station. The release of dissolved silicon may also have contributed to this response, although to a lesser extent, whereas neither the dust nor the ash relieved the nitrogen limitation in the low-nutrient and low-chlorophyll area. Diatom growth was responsible for 40% to 100% of the algal biomass increase within the responding stations, depending on the region and aerosol type. The high particle concentrations that are characteristic of ash deposition following volcanic eruptions may be of equal or higher importance to phytoplankton compared to desert dust, despite ashes' lower nutrient solubility to the ocean. 
PY 2022
PD JUN
SO Limnology And Oceanography
SN 0024-3590
PU Wiley
VL 67
IS 7
UT 000799195400001
BP 1537
EP 1553
DI 10.1002/lno.12100
ID 88667
ER

EF