@article{fdi:010066985,
  title = {{I}ntroduction to the project {VAHINE} : {VA}riability of vertical and trop{H}lc transfer of diazotroph derived {N} in the south w{E}st {P}acific},
  author = {{B}onnet, {S}ophie and {M}outin, {T}. and {R}odier, {M}artine and {G}risoni, {J}. {M}. and {L}ouis, {F}. and {F}olcher, {E}ric and {B}ourgeois, {B}ertrand and {B}or{\'e}, {J}ean-{M}ichel and {R}enaud, {A}rmelle},
  editor = {},
  language = {{ENG}},
  abstract = {{O}n the global scale, {N}-2 fixation provides the major external source of reactive nitrogen to the surface ocean, surpassing atmospheric and riverine inputs, and sustains similar to 50 % of new primary production in oligotrophic environments. {T}he main goal of the {VA}riability of vertical and trop{H}lc transfer of diazotroph derived {N} in the south w{E}st {P}acific ({VAHINE}) project was to study the fate of nitrogen newly fixed by diazotrophs (or diazotroph-derived nitrogen) in oceanic food webs, and how it impacts heterotrophic bacteria, phytoplankton and zooplankton dynamics, stocks and fluxes of biogenic elements and particle export. {T}hree large volume (similar to 50 m(3)) mesocosms were deployed in a tropical oligotrophic ecosystem (the {N}ew {C}aledonia lagoon, southeastern {P}acific) and intentionally fertilized with similar to 0.8 mu {M} of dissolved inorganic phosphorus ({DIP}) to stimulate diazotrophy and follow subsequent ecosystem changes. {VAHINE} was a multidisciplinary project involving close collaborations between biogeochemists, molecular ecologist, chemists, marine opticians and modellers. {T}his introductory paper describes in detail the scientific objectives of the project as well as the implementation plan: the mesocosm description and deployment, the selection of the study site ({N}ew {C}aledonian lagoon), and the logistical and sampling strategy. {T}he main hydrological and biogeochemical conditions of the study site before the mesocosm deployment and during the experiment itself are described, and a general overview of the papers published in this special issue is presented.},
  keywords = {{NOUVELLE} {CALEDONIE} ; {PACIFIQUE} ; {NOUMEA} {LAGON}},
  booktitle = {},
  journal = {{B}iogeosciences},
  volume = {13},
  numero = {9},
  pages = {2803--2814},
  ISSN = {1726-4170},
  year = {2016},
  DOI = {10.5194/bg-13-2803-2016},
  URL = {https://www.documentation.ird.fr/hor/fdi:010066985},
}