Response of two temperate scleractinian corals to projected ocean warming and marine heatwaves
The Mediterranean Sea is a hotspot of global change, particularly exposed to ocean warming and the increasing occurrence of marine heatwaves (MHWs). However, experiments based on long-term temperature data from the field are scarce. Here, we investigate the response of the zooxanthellate coral Clado...
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The Royal Society
2024-03-01
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| Series: | Royal Society Open Science |
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| Online Access: | https://royalsocietypublishing.org/doi/10.1098/rsos.231683 |
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| author | Chloe Carbonne Steeve Comeau Keyla Plichon Sébastien Schaub Jean-Pierre Gattuso Núria Teixidó |
| author_facet | Chloe Carbonne Steeve Comeau Keyla Plichon Sébastien Schaub Jean-Pierre Gattuso Núria Teixidó |
| author_sort | Chloe Carbonne |
| collection | DOAJ |
| description | The Mediterranean Sea is a hotspot of global change, particularly exposed to ocean warming and the increasing occurrence of marine heatwaves (MHWs). However, experiments based on long-term temperature data from the field are scarce. Here, we investigate the response of the zooxanthellate coral Cladocora caespitosa and the azooxanthellate coral Astroides calycularis to future warming and MHWs based on 8 years of in situ data. Corals were maintained in the laboratory for five months under four temperature conditions: Warming (3.2°C above the in situ mean from 2012 to 2020), Heatwave (temperatures of 2018 with two heatwaves), Ambient (in situ mean) and Cool (deeper water temperatures). Under the Warming treatment, some C. caespitosa colonies severely bleached and A. calycularis colonies presented necrosis. Cladocora caespitosa symbiosis was impaired by temperature with a decrease in the density of endosymbiotic algae and an increase in per cent whiteness in all the treatments except for the coolest. Recovery for both species was observed through different mechanisms such as regrowth of polyps of A. calycularis and recovery of pigmentation for C. caespitosa. These results suggest that A. calycularis and C. caespitosa may be resilient to heat stress and can recover from physiological stresses caused by heatwaves in the laboratory. |
| format | Article |
| id | doaj-art-3ccdb76022a74f3680b4e4a894c2db9a |
| institution | Kabale University |
| issn | 2054-5703 |
| language | English |
| publishDate | 2024-03-01 |
| publisher | The Royal Society |
| record_format | Article |
| series | Royal Society Open Science |
| spelling | doaj-art-3ccdb76022a74f3680b4e4a894c2db9a2025-01-23T10:10:30ZengThe Royal SocietyRoyal Society Open Science2054-57032024-03-0111310.1098/rsos.231683Response of two temperate scleractinian corals to projected ocean warming and marine heatwavesChloe Carbonne0Steeve Comeau1Keyla Plichon2Sébastien Schaub3Jean-Pierre Gattuso4Núria Teixidó5CNRS, Laboratoire d’Océanographie de Villefranche, Sorbonne Université , 181 chemin du Lazaret, Villefranche-sur-mer, Monaco 06230, FranceCNRS, Laboratoire d’Océanographie de Villefranche, Sorbonne Université , 181 chemin du Lazaret, Villefranche-sur-mer, Monaco 06230, FranceCNRS, Laboratoire d’Océanographie de Villefranche, Sorbonne Université , 181 chemin du Lazaret, Villefranche-sur-mer, Monaco 06230, FranceCNRS, Laboratoire de Biologie du Développement de Villefranche, Sorbonne Université , 181 chemin du Lazaret, Villefranche-sur-mer, Monaco 06230, FranceCNRS, Laboratoire d’Océanographie de Villefranche, Sorbonne Université , 181 chemin du Lazaret, Villefranche-sur-mer, Monaco 06230, FranceCNRS, Laboratoire d’Océanographie de Villefranche, Sorbonne Université , 181 chemin du Lazaret, Villefranche-sur-mer, Monaco 06230, FranceThe Mediterranean Sea is a hotspot of global change, particularly exposed to ocean warming and the increasing occurrence of marine heatwaves (MHWs). However, experiments based on long-term temperature data from the field are scarce. Here, we investigate the response of the zooxanthellate coral Cladocora caespitosa and the azooxanthellate coral Astroides calycularis to future warming and MHWs based on 8 years of in situ data. Corals were maintained in the laboratory for five months under four temperature conditions: Warming (3.2°C above the in situ mean from 2012 to 2020), Heatwave (temperatures of 2018 with two heatwaves), Ambient (in situ mean) and Cool (deeper water temperatures). Under the Warming treatment, some C. caespitosa colonies severely bleached and A. calycularis colonies presented necrosis. Cladocora caespitosa symbiosis was impaired by temperature with a decrease in the density of endosymbiotic algae and an increase in per cent whiteness in all the treatments except for the coolest. Recovery for both species was observed through different mechanisms such as regrowth of polyps of A. calycularis and recovery of pigmentation for C. caespitosa. These results suggest that A. calycularis and C. caespitosa may be resilient to heat stress and can recover from physiological stresses caused by heatwaves in the laboratory.https://royalsocietypublishing.org/doi/10.1098/rsos.231683ocean warmingmarine heatwavesMediterranean Seacoralbleaching |
| spellingShingle | Chloe Carbonne Steeve Comeau Keyla Plichon Sébastien Schaub Jean-Pierre Gattuso Núria Teixidó Response of two temperate scleractinian corals to projected ocean warming and marine heatwaves Royal Society Open Science ocean warming marine heatwaves Mediterranean Sea coral bleaching |
| title | Response of two temperate scleractinian corals to projected ocean warming and marine heatwaves |
| title_full | Response of two temperate scleractinian corals to projected ocean warming and marine heatwaves |
| title_fullStr | Response of two temperate scleractinian corals to projected ocean warming and marine heatwaves |
| title_full_unstemmed | Response of two temperate scleractinian corals to projected ocean warming and marine heatwaves |
| title_short | Response of two temperate scleractinian corals to projected ocean warming and marine heatwaves |
| title_sort | response of two temperate scleractinian corals to projected ocean warming and marine heatwaves |
| topic | ocean warming marine heatwaves Mediterranean Sea coral bleaching |
| url | https://royalsocietypublishing.org/doi/10.1098/rsos.231683 |
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