@article{fdi:010095461,
  title = {{E}levated carbon dioxide does not increase macroalgal community photosynthesis},
  author = {{W}ada, {S}. and {K}urosawa, {S}. and {A}gostini, {S}ylvain and {H}arvey, {B}. and {S}atoh, {Y}. and {M}ilazzo, {M}. and {H}all-{S}pencer, {J}. {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{O}cean acidification, driven by rising atmospheric carbon dioxide levels, has impacts on marine ecosystems. {W}hile elevated carbon dioxide concentrations have the potential to enhance {B}lue {C}arbon fixation and storage, the response of community photosynthesis in macroalgal-dominated ecosystems remains poorly understood. {H}ere, we investigated the effects of elevated carbon dioxide on macroalgal communities using volcanic carbon dioxide vents as a natural analogue of ocean acidification. {N}et community photosynthesis was assessed using chambers positioned on the seafloor as well as water mass dynamics monitoring. {D}espite a shift in algal community composition, only minimal differences in net community photosynthesis were observed between reference and high carbon dioxide sites. {T}he high carbon dioxide site had a lower abundance of algal species with carbon dioxide concentrating mechanisms, based on delta 13{C} isotope measurements. {C}arbon dioxide concentrating mechanisms facilitate photosynthesis under present-day levels of carbon dioxide in seawater, resulting in a negligible effect of elevated carbon dioxide on macroalgal community photosynthesis. {T}hese results challenge the assumption that ocean acidification will enhance {B}lue {C}arbon uptake and storage, necessitating a reevaluation of this perspective.},
  keywords = {{JAPON} ; {SHIKINE} {JIMA} {ILE}},
  booktitle = {},
  journal = {{C}ommunications {E}arth and {E}nvironment},
  volume = {6},
  numero = {1},
  pages = {840 [8 p.]},
  year = {2025},
  DOI = {10.1038/s43247-025-02730-2},
  URL = {https://www.documentation.ird.fr/hor/fdi:010095461},
}