@article{fdi:010070243,
  title = {{I}nteractive effects of ultraviolet radiation and thermal stress on two reef-building corals},
  author = {{C}ourtial, {L}. and {R}oberty, {S}. and {S}hick, {J}. {M}. and {H}oulbr{\`e}que, {F}anny and {F}errier-{P}ages, {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n shallow tropical waters, ultraviolet radiation ({UVR}) occurs at high intensity simultaneously with high water temperatures, and both stressors are predicted to increase in the future and to have a major impact on reef coral survival. {T}he poor knowledge of the interactive effects of those two factors, however, prevents a good estimation of the coral resistance to climate change pressure. {T}he results obtained in this study on two genetically distant scleractinian coral species, {P}ocillopora damicornis and {T}urbinaria reniformis, highlight an interaction of temperature and {UVR} on the corals' physiology as well as a species-specific response. {O}verall, increase in {UVR} level exacerbated the negative impact of thermal stress. {W}hereas stressors did not reduce the autotrophic capacity (symbiont density, net photosynthetic rates) of {T}. reniformis, they significantly lowered it in {P}. damicornis, which initially contained twice more symbionts in its tissue. {O}nly grazing rates (heterotrophy) were significantly decreased in {T}. reniformis under thermal stress. {F}or both corals, calcification was slowed by the combination of thermal and {UVR} stress. {C}alcification was impaired likely due to a decrease in autotrophic energy supply in {P}. damicornis, and in heterotrophic energy supply in {T}. reniformis. {T}his study confirms that the response of corals to global change needs to be studied using multifactorial approaches and a combination of different environmental factors.},
  keywords = {},
  booktitle = {},
  journal = {{L}imnology and {O}ceanography},
  volume = {62},
  numero = {3},
  pages = {1000--1013},
  ISSN = {0024-3590},
  year = {2017},
  DOI = {10.1002/lno.10481},
  URL = {https://www.documentation.ird.fr/hor/fdi:010070243},
}