FN Archimer Export Format
PT J
TI Iron from a submarine source impacts the productive layer of the Western Tropical South Pacific (WTSP)
BT 
AF GUIEU, Cecile
   BONNET, Sophie
   PETRENKO, Anne
   MENKES, Christophe
   CHAVAGNAC, Valerie
   DESBOEUFS, Karine
   MAES, Christophe
   MOUTIN, Thierry
AS 1:1,2;2:3;3:3;4:4;5:5;6:6;7:7;8:3;
FF 1:;2:;3:;4:;5:;6:;7:;8:;
C1 Sorbonne Univ, CNRS, LOV, F-06230 Villefranche Sur Mer, France.
   New York Univ Abu Dhabi, Ctr Prototype Climate Modeling, Abu Dhabi, U Arab Emirates.
   Univ Toulon & Var, Observ Sci Univers Pytheas, Inst Rech Dev,Aix Marseille Univ, CNRS,Inst Natl Sci Univers,MIO, F-13288 Marseille, France.
   Sorbonne Univ, CNRS, LOCEAN, MNHN,IRD, BP A5, Noumea 98848, New Caledonia.
   Univ Toulouse, Geosci Environm Toulouse, CNRS, UPS,IRD,CNES, F-31400 Toulouse, France.
   UPD, UPEC, IPSL, LISA, Creteil, France.
   Univ Brest, CNRS, IUEM, IRD,LOPS,IFREMER, Brest, France.
C2 CNRS, FRANCE
   NEW YORK UNIV ABU DHABI, UNITED ARAB EMIRATES
   UNIV AIX MARSEILLE, FRANCE
   IRD, FRANCE
   UNIV TOULOUSE, FRANCE
   UNIV PARIS EST, FRANCE
   IRD, FRANCE
UM LOPS
IN DOAJ
IF 4.011
TC 36
UR https://archimer.ifremer.fr/doc/00444/55564/57174.pdf
   https://archimer.ifremer.fr/doc/00444/55564/57175.pdf
LA English
DT Article
CR OUTPACE
BO L'Atalante
AB In the Western Tropical South Pacific, patches of high chlorophyll concentrations linked to the occurrence of N2-fixing organisms are found in the vicinity of volcanic islands. The survival of these organisms relies on a high bioavailable iron supply whose origin and fluxes remain unknown. Here, we measured high dissolved iron (DFe) concentrations (up to 66 nM) in the euphotic layer, extending zonally over 10 degrees longitude (174 E−175 W) at ∼20°S latitude. DFe atmospheric fluxes were at the lower end of reported values of the remote ocean and could not explain the high DFe concentrations measured in the water column in the vicinity of Tonga. We argue that the high DFe concentrations may be sustained by a submarine source, also characterized by freshwater input and recorded as salinity anomalies by Argo float in situ measurements and atlas data. The observed negative salinity anomalies are reproduced by simulations from a general ocean circulation model. Submarine iron sources reaching the euphotic layer may impact nitrogen fixation across the whole region. 
PY 2018
PD JUL
SO Scientific Reports
SN 2045-2322
PU Nature Publishing Group
VL 8
IS 1
UT 000435077300018
DI 10.1038/s41598-018-27407-z
ID 55564
ER

EF