@article{fdi:010077125,
  title = {{B}iogeography of {N}-2 fixation influenced by the western boundary current intrusion in the {S}outh {C}hina {S}ea},
  author = {{L}u, {Y}. {Y}. and {W}en, {Z}. {Z}. and {S}hi, {D}. {L}. and {L}in, {W}. {F}. and {B}onnet, {S}ophie and {D}ai, {M}. {H}. and {K}ao, {S}. {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he {N}-2 fixation and primary production rates were measured simultaneously using {N}-15(2) and {C}-13 incubation assays in the northern {S}outh {C}hina {S}ea influenced by the {K}uroshio intrusion ({KI}) seasonally. {T}he degree of {KI} ({KI} index, range from 0 to 1) was assessed by applying an isopycnal mixing model. {T}he water column integrated {N}-2 fixation and primary production for stations with {KI} index larger than 0.5 were 463 +/- 260 mu mol {N} center dot m(-2)center dot day(-1) and 62 +/- 19 mmol {C} center dot m(-2)center dot day(-1), respectively, significantly higher than those for stations with {KI} index lower than 0.5 (50 +/- 10 mu mol {N} center dot m(-2)center dot day(-1) and 28 +/- 10 mmol {C} center dot m(-2)center dot day(-1), respectively). {T}richodesmium was the dominant diazotroph at stations with {KI} index larger than 0.5, with 2 orders of magnitude higher nif{H} gene abundance than that at stations with {KI} index lower than 0.5. {H}owever, the highest {N}-2 fixation rates were found in waters with moderate {KI} index around 0.6, suggesting that frontal zone mixing might stimulate {N}-2 fixation. {O}ur results demonstrated that diazotrophs (mainly {T}richodesmium) were tightly associated with the {KI}, which modulated the biogeographic distribution of {N}-2 fixers. {I}n summary, we found the transportation of {T}richodesmium by {KI}, then, we quantified the fraction of {KI} and {N}-2 fixation rates in the northern {S}outh {C}hina {S}ea. {T}he results suggested that {KI} generated a new biogeographic regime which could significantly influence the carbon and nitrogen cycles far away from the main stream.},
  keywords = {{MER} {DE} {CHINE}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {O}ceans},
  volume = {124},
  numero = {10},
  pages = {6983--6996},
  ISSN = {2169-9275},
  year = {2019},
  DOI = {10.1029/2018jc014781},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077125},
}