@article{fdi:010089630,
  title = {{B}iogeochemical evidence of flow re-entrainment on the main fringing reef of {L}a {R}eunion {I}sland},
  author = {{L}agoutte, {E}lsa and {T}ribollet, {A}line and {B}ureau, {S}. and {C}ordier, {E}. and {M}angion, {P}. and {C}hauvin, {A}nne and {M}ouquet, {P}ascal and {B}igot, {L}. and {F}rouin, {P}. and {C}uet, {P}.},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding factors influencing seawater chemistry variability in coral reef environments is a major challenge to improve predictions of their evolution in the context of ocean acidification. {I}n this study, autonomous sensors for current speed and direction, photosynthetically active radiation ({PAR}), temperature, salinity, dissolved oxygen ({DO}) and p{HT} were deployed three times between 2021 and 2022 offshore and on three reef flat sites of the main fringing reef of {L}a {R}eunion {I}sland. {D}iscrete sampling of seawater for {DO}, p{HT} and total alkalinity ({TA}) at different times of the day complemented the monitoring. {D}iurnal variation of those variables on the reef flat was mainly driven by benthic community metabolism but hydrodynamics and reef geomorphology played also a key role. {DO} and p{HT} variations were decoupled in time, especially at night when we observed {DO} rebounds while p{HT} values were stationary. {T}he reef flat was also largely {TA} depleted compared to offshore waters. {W}e hypothesize that the strong offshore-alongshore current redirected {TA} depleted water exiting from reef channels into the reef flat. {T}his seawater re-entrainment could also explain specific variations of {DO} and p{HT} values. {T}his result highlights the important role of reef geomorphology in modulating changes in seawater chemistry. {N}eglecting this phenomenon could lead to substantial errors in the estimation of carbonate budgets when using the {E}ulerian approach.},
  keywords = {{C}oral reefs ; p{H} sensors ; {O}xygen sensors ; {A}lkalinity ; {C}arbonate budgets ; {H}ydrodynamics ; {REUNION}},
  booktitle = {},
  journal = {{M}arine {C}hemistry},
  volume = {259},
  numero = {},
  pages = {104352 [13 p.]},
  ISSN = {0304-4203},
  year = {2024},
  DOI = {10.1016/j.marchem.2024.104352},
  URL = {https://www.documentation.ird.fr/hor/fdi:010089630},
}