@article{fdi:010085180,
  title = {{L}ong-term exposure to an extreme environment induces species-specific responses in corals' photosynthesis and respiration rates},
  author = {{J}acquemont, {J}. and {H}oulbr{\`e}que, {F}anny and {T}anvet, {C}. and {R}odolfo-{M}etalpa, {R}iccardo},
  editor = {},
  language = {{ENG}},
  abstract = {{E}xtreme reef environments have become useful natural laboratories to investigate physiological specificities of species chronically exposed to future-like climatic conditions. {T}he lagoon of {B}ourake in {N}ew {C}aledonia (21 degrees 56 ' 56.16 ' {S}; 125 degrees 59 ' 36.82 ' {E}) is one of the only reef environments studied where the three main climatic stressors predicted to most severely impact corals occur. {I}n this lagoon, temperatures, seawater p{H}({T}) and dissolved oxygen chronically fluctuate between extreme and close-to-normal values (17.5-33.85 degrees {C}, 7.23-7.92 p{H}({T}) units and 1.87-7.24 mg {O}-2 {L}-1, respectively). {I}n {M}arch 2020, the endosymbiont functions (chl a, cell density and photosynthesis) and respiration rates were investigated in seven coral species from this lagoon and compared with those of corals from an adjacent reference site using hour-long incubations mimicking present-day and future conditions. {C}orals originating from {B}ourake displayed significant differences in these variables compared to reference corals, but these differences were species-specific. {P}hotosynthetic rates of {B}ourake corals were all significantly lower than those of reference corals but were partially compensated by higher chlorophyll contents. {R}espiration rates of the {B}ourake corals were either lower or comparable to those of reference corals. {C}onversely, photosynthesis and respiration rates of most studied species were similar regardless of the incubation conditions, which mimicked either present-day or future conditions. {T}his study supports previous work indicating that no unique response can explain corals' tolerance to sub-optimal conditions and that a variety of mechanisms will be at play for corals in a changing world.},
  keywords = {{C}oral reefs ; {E}xtreme environments ; {O}cean acidification ; {P}hotosynthesis ; {R}espiration ; {C}limate change ; {NOUVELLE} {CALEDONIE} ; {PACIFIQUE} ; {BOURAKE} {LAGON}},
  booktitle = {},
  journal = {{M}arine {B}iology},
  volume = {169},
  numero = {6},
  pages = {82 [15 p.]},
  ISSN = {0025-3162},
  year = {2022},
  DOI = {10.1007/s00227-022-04063-6},
  URL = {https://www.documentation.ird.fr/hor/fdi:010085180},
}