@article{fdi:010092732,
  title = {{A}n extreme {N}orth {A}tlantic {O}scillation event drove the pelagic {S}argassum tipping point},
  author = {{J}ouanno, {J}ulien and {B}erthet, {S}. and {M}üller-{K}arger, {F}. and {A}umont, {O}livier and {S}heinbaum, {J}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he proliferation of pelagic {S}argassum in the tropical {A}tlantic since 2011 is causing considerable health and economic concerns as large amounts of this brown alga arrive and accumulate in coastal ecosystems of western {A}frica and of the greater {C}aribbean {S}ea every year. {M}any hypotheses have been proposed to explain the recurrence of {S}argassum blooms since 2011 and their year-to-year variability. {A}mong the hypotheses being debated about the origin and nutrient source to support the blooms are either: a) an increase in nutrient supply to the {A}tlantic {O}cean via continental, or atmospheric inputs, or b) long-distance transport of a seed population during the {N}orth {A}tlantic {O}scillation ({NAO}) event of 2009/2010 and stimulation of blooms in the tropical {N}orth {A}tlantic by nutrient supply primarily due to seasonal vertical mixing of the upper water column. {T}he aim of this study is to address these alternate hypotheses. {T}o this end, interannual numerical simulations (2002-2022) representing the transport, growth, and decay of pelagic {S}argassum have been developed at basin scale. {O}ur results confirm the role played by the {NAO} transport anomaly on the regime shift that occurred in 2010, and the primary role of vertical mixing in the tropical {A}tlantic as the primary nutrient source for the recurring blooms since 2011.},
  keywords = {{ATLANTIQUE} ; {CARAIBE} ; {ZONE} {TROPICALE} ; {ATLANTIQUE} {NORD}},
  booktitle = {},
  journal = {{C}ommunications {E}arth and {E}nvironment},
  volume = {6},
  numero = {1},
  pages = {95 [11 ]},
  year = {2025},
  DOI = {10.1038/s43247-025-02074-x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092732},
}