FN Archimer Export Format
PT J
TI Revisiting the distribution of oceanic N-2 fixation and estimating diazotrophic contribution to marine production
BT 
AF TANG, Weiyi
   WANG, Seaver
   FONSECA-BATISTA, Debany
   DEHAIRS, Frank
   GIFFORD, Scott
   GONZALEZ, Aridane G.
   GALLINARI, Morgane
   PLANQUETTE, Helene
   SARTHOU, Geraldine
   CASSAR, Nicolas
AS 1:1;2:1;3:2,6;4:2;5:3;6:4,5;7:7;8:4;9:4;10:1,4;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 Duke Univ, Nicholas Sch Environm, Div Earth & Ocean Sci, Durham, NC 27708 USA.
   Vrije Univ Brussel, Analyt Environm & Geochem, B-1050 Brussels, Belgium.
   Univ North Carolina Chapel Hill, Dept Marine Sci, Chapel Hill, NC 27599 USA.
   Inst Univ Europeen Mer IUEM, Lab Sci Environm Marin LEMAR, IFREMER, UBO,CNRS,IRD,UMR 6539, F-29280 Brest, France.
   Univ Las Palmas Gran Canaria, Inst Oceanog & Cambio Global IOCAG, Las Palmas Gran Canaria 35214, Spain.
   Dalhousie Univ, Dept Biol, Halifax, NS B3H 4R2, Canada.
C2 UNIV DUKE, USA
   UNIV VRIJE BRUSSEL, BELGIUM
   UNIV NORTH CAROLINA CHAPEL HILL, USA
   CNRS, FRANCE
   UNIV LAS PALMAS GRAN CANARIA, SPAIN
   UNIV DALHOUSIE, CANADA
   UBO, FRANCE
UM LEMAR
IN WOS Cotutelle UMR
   DOAJ
   copubli-europe
   copubli-int-hors-europe
IF 12.121
TC 72
UR https://archimer.ifremer.fr/doc/00484/59564/62548.pdf
   https://archimer.ifremer.fr/doc/00484/59564/62549.pdf
   https://archimer.ifremer.fr/doc/00484/59564/62550.pdf
   https://archimer.ifremer.fr/doc/00484/59564/62551.pdf
   https://archimer.ifremer.fr/doc/00484/59564/62552.xlsx
LA English
DT Article
AB Marine N-2 fixation supports a significant portion of oceanic primary production by making N-2 bioavailable to planktonic communities, in the process influencing atmosphere-ocean carbon fluxes and our global climate. However, the geographical distribution and controlling factors of marine N-2 fixation remain elusive largely due to sparse observations. Here we present unprecedented high-resolution underway N-2 fixation estimates across over 6000 kilometers of the western North Atlantic. Unexpectedly, we find increasing N-2 fixation rates from the oligotrophic Sargasso Sea to North America coastal waters, driven primarily by cyanobacterial diazotrophs. N-2 fixation is best correlated to phosphorus availability and chlorophylla concentration. Globally, intense N-2 fixation activity in the coastal oceans is validated by a meta-analysis of published observations and we estimate the annual coastal N-2 fixation flux to be 16.7 Tg N. This study broadens the biogeography of N-2 fixation, highlights the interplay of regulating factors, and reveals thriving diazotrophic communities in coastal waters with potential significance to the global nitrogen and carbon cycles. 
PY 2019
PD FEB
SO Nature Communications
SN 2041-1723
PU Nature Publishing Group
VL 10
IS 831
UT 000459055400005
DI 10.1038/s41467-019-08640-0
ID 59564
ER

EF