@article{fdi:010085370,
  title = {{H}igh coral recruitment despite coralline algal loss under extreme environmental conditions},
  author = {{T}anvet, {C}. and {B}enzoni, {F}rancesca and {P}eignon, {C}hristophe and {T}houzeau, {G}. and {R}odolfo-{M}etalpa, {R}iccardo},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he crucial role of crustose coralline algae ({CCA}) in inducing hard coral larval settlement and ensuring the replenishment of coral reefs is widely accepted, and so are the negative effects of anthropogenic {CO}2 emissions on both {CCA} abundance and coral development. {H}owever, diversified and well-developed coral reef communities have been recently discovered in natural conditions where {CCA} and corals would not be expected to thrive. {B}ack-reef pools, volcanic {CO}2 vents, mangrove estuaries, and semi-enclosed lagoons systems can present seawater p{H}, temperature, and dissolved oxygen values reaching or even exceeding the conditions currently predicted by the {I}nter {P}anel on {C}limate {C}hange ({IPCC}) for 2100. {I}n the semi-enclosed lagoon of {B}ourake ({N}ew {C}aledonia, southwest {P}acific {O}cean), seawater p{H}({T}), dissolved oxygen, and temperatures regularly fluctuate with the tide reaching respectively minimum values of 7.23 p{H}({T}) units, 2.28 mg {O}-2 {L}-1, and maximum of 33.85 degrees {C}. {T}his study reports the effect of such extreme environmental conditions on hard coral recruitment and {CCA} originally settled at a forereef on artificial substrates that were transplanted over two years in two fringing reef and at the {B}ourake lagoon. {O}ur data emphasize the negative effects of the extreme conditions in our study sites on the {CCA}, which decreased in cover by ca. 80% and lost in the competition with turf algae, which, in turn, increased up to 162% at the end of the two years. {C}onversely, hard coral recruitment remained high at {B}ourake throughout the study, three-fold higher than at two sites located outside {B}ourake where environmental conditions were typical for coastal fringing reefs. {O}ur findings show that while such extreme, climate change like-conditions have a direct and adverse effect on {CCA} abundance, and despite a certain persistence, coral larvae settlement was not affected. {B}ased on previous findings from {B}ourake, and the present observations, both coral recruits and adults seem to be unaffected despite the extreme environmental conditions. {T}his study supports previous research illustrating how extreme natural and variable environments may reveal unexpected and positive insights on the processes underlying coral acclimatization and adaptation to global change.},
  keywords = {coral recruitment ; crustose coralline algae ({CCA}) ; extreme environmental conditions ; persistence ; natural variability ; {PACIFIQUE} ; {NOUVELLE} {CALEDONIE} ; {BOURAKE}},
  booktitle = {},
  journal = {{F}rontiers in {M}arine {S}cience},
  volume = {9},
  numero = {},
  pages = {837877 [12 ]},
  year = {2022},
  DOI = {10.3389/fmars.2022.837877},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085370},
}