@article{fdi:010094183,
  title = {{N}atural iron fertilization moderates hydrothermal mercury inputs from arc volcanoes},
  author = {{T}orres-{R}odriguez, {N}. and {Y}uan, {J}. {J}. and {D}ufour, {A}. and {Z}ivkovi, {I}. and {P}oint, {D}avid and {B}oulart, {C}. and {K}noery, {J}. and {H}orvat, {M}. and {A}mouroux, {D}. and {B}onnet, {S}ophie and {G}uieu, {C}. and {S}un, {R}. {Y}. and {H}eimbürger-{B}oavida, {L}. {E}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}ethylmercury is a bioaccumulative neurotoxin that poses severe risks to marine ecosystems and human health worldwide. {H}ydrothermal systems and submarine volcanoes are natural sources of mercury, yet the magnitude of emissions, their transport, and their impact on marine ecosystems remain poorly understood. {Q}uantifying natural mercury fluxes is essential to understanding anthropogenic perturbations and guiding effective reduction strategies. {W}e investigate hydrothermal mercury inputs at the {T}onga volcanic arc and their impact on the local ecosystem. {O}ur results show that hydrothermal and volcanic activity in the {T}onga {A}rc increases mercury concentrations in seawater. {C}omprehensive surveys identified mercury-rich plumes (up to 22.7 pmol {L}-1) associated with high mercury fluxes (4763 pmol m-2 day-1) reaching productive surface waters, resulting in an estimated total flux of 4.23 t y-1 for the entire {T}onga {A}rc. {D}espite these significant inputs, mercury concentrations in phytoplankton remain unexpectedly low. {W}e demonstrate that phytoplankton blooms, stimulated by natural iron fertilization from hydrothermal sources, dilute mercury at the cellular level, reducing the impact of hydrothermal mercury. {A}dditionally, we provide a revised global estimate of hydrothermal mercury inputs with a maximum of 120 t y-1, which is considerably lower than atmospheric and riverine inputs to the ocean.},
  keywords = {hydrothermal vents ; submarine volcanoes ; phytoplankton ; minamata ; convention on mercury, {GEOTRACES} ; {TONGA}},
  booktitle = {},
  journal = {{E}nvironmental {S}cience and {T}echnology},
  volume = {[{E}arly access]},
  numero = {},
  pages = {[12 p.]},
  ISSN = {0013-936{X}},
  year = {2025},
  DOI = {10.1021/acs.est.5c01767},
  URL = {https://www.documentation.ird.fr/hor/fdi:010094183},
}