Sensitivity of calcification to thermal stress varies among genera of massive reef-building corals.
Reductions in calcification in reef-building corals occur when thermal conditions are suboptimal, but it is unclear how they vary between genera in response to the same thermal stress event. Using densitometry techniques, we investigate reductions in the calcification rate of massive Porites spp. fr...
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ftdoajarticles:oai:doaj.org/article:4525ef1151d2496eb950a27cf94d89cc 2023-05-15T17:50:59+02:00 Sensitivity of calcification to thermal stress varies among genera of massive reef-building corals. Juan P Carricart-Ganivet Nancy Cabanillas-Terán Israel Cruz-Ortega Paul Blanchon 2012-01-01T00:00:00Z https://doi.org/10.1371/journal.pone.0032859 https://doaj.org/article/4525ef1151d2496eb950a27cf94d89cc EN eng Public Library of Science (PLoS) http://europepmc.org/articles/PMC3291612?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0032859 https://doaj.org/article/4525ef1151d2496eb950a27cf94d89cc PLoS ONE, Vol 7, Iss 3, p e32859 (2012) Medicine R Science Q article 2012 ftdoajarticles https://doi.org/10.1371/journal.pone.0032859 2022-12-31T03:52:41Z Reductions in calcification in reef-building corals occur when thermal conditions are suboptimal, but it is unclear how they vary between genera in response to the same thermal stress event. Using densitometry techniques, we investigate reductions in the calcification rate of massive Porites spp. from the Great Barrier Reef (GBR), and P. astreoides, Montastraea faveolata, and M. franksi from the Mesoamerican Barrier Reef (MBR), and correlate them to thermal stress associated with ocean warming. Results show that Porites spp. are more sensitive to increasing temperature than Montastraea, with calcification rates decreasing by 0.40 g cm(-2) year(-1) in Porites spp. and 0.12 g cm(-2) year(-1) in Montastraea spp. for each 1°C increase. Under similar warming trends, the predicted calcification rates at 2100 are close to zero in Porites spp. and reduced by 40% in Montastraea spp. However, these predictions do not account for ocean acidification. Although yearly mean aragonite saturation (Ω(ar)) at MBR sites has recently decreased, only P. astreoides at Chinchorro showed a reduction in calcification. In corals at the other sites calcification did not change, indicating there was no widespread effect of Ω(ar) changes on coral calcification rate in the MBR. Even in the absence of ocean acidification, differential reductions in calcification between Porites spp. and Montastraea spp. associated with warming might be expected to have significant ecological repercussions. For instance, Porites spp. invest increased calcification in extension, and under warming scenarios it may reduce their ability to compete for space. As a consequence, shifts in taxonomic composition would be expected in Indo-Pacific reefs with uncertain repercussions for biodiversity. By contrast, Montastraea spp. use their increased calcification resources to construct denser skeletons. Reductions in calcification would therefore make them more susceptible to both physical and biological breakdown, seriously affecting ecosystem function in Atlantic reefs. Article in Journal/Newspaper Ocean acidification Directory of Open Access Journals: DOAJ Articles Pacific PLoS ONE 7 3 e32859 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Medicine R Science Q |
spellingShingle |
Medicine R Science Q Juan P Carricart-Ganivet Nancy Cabanillas-Terán Israel Cruz-Ortega Paul Blanchon Sensitivity of calcification to thermal stress varies among genera of massive reef-building corals. |
topic_facet |
Medicine R Science Q |
description |
Reductions in calcification in reef-building corals occur when thermal conditions are suboptimal, but it is unclear how they vary between genera in response to the same thermal stress event. Using densitometry techniques, we investigate reductions in the calcification rate of massive Porites spp. from the Great Barrier Reef (GBR), and P. astreoides, Montastraea faveolata, and M. franksi from the Mesoamerican Barrier Reef (MBR), and correlate them to thermal stress associated with ocean warming. Results show that Porites spp. are more sensitive to increasing temperature than Montastraea, with calcification rates decreasing by 0.40 g cm(-2) year(-1) in Porites spp. and 0.12 g cm(-2) year(-1) in Montastraea spp. for each 1°C increase. Under similar warming trends, the predicted calcification rates at 2100 are close to zero in Porites spp. and reduced by 40% in Montastraea spp. However, these predictions do not account for ocean acidification. Although yearly mean aragonite saturation (Ω(ar)) at MBR sites has recently decreased, only P. astreoides at Chinchorro showed a reduction in calcification. In corals at the other sites calcification did not change, indicating there was no widespread effect of Ω(ar) changes on coral calcification rate in the MBR. Even in the absence of ocean acidification, differential reductions in calcification between Porites spp. and Montastraea spp. associated with warming might be expected to have significant ecological repercussions. For instance, Porites spp. invest increased calcification in extension, and under warming scenarios it may reduce their ability to compete for space. As a consequence, shifts in taxonomic composition would be expected in Indo-Pacific reefs with uncertain repercussions for biodiversity. By contrast, Montastraea spp. use their increased calcification resources to construct denser skeletons. Reductions in calcification would therefore make them more susceptible to both physical and biological breakdown, seriously affecting ecosystem function in Atlantic reefs. |
format |
Article in Journal/Newspaper |
author |
Juan P Carricart-Ganivet Nancy Cabanillas-Terán Israel Cruz-Ortega Paul Blanchon |
author_facet |
Juan P Carricart-Ganivet Nancy Cabanillas-Terán Israel Cruz-Ortega Paul Blanchon |
author_sort |
Juan P Carricart-Ganivet |
title |
Sensitivity of calcification to thermal stress varies among genera of massive reef-building corals. |
title_short |
Sensitivity of calcification to thermal stress varies among genera of massive reef-building corals. |
title_full |
Sensitivity of calcification to thermal stress varies among genera of massive reef-building corals. |
title_fullStr |
Sensitivity of calcification to thermal stress varies among genera of massive reef-building corals. |
title_full_unstemmed |
Sensitivity of calcification to thermal stress varies among genera of massive reef-building corals. |
title_sort |
sensitivity of calcification to thermal stress varies among genera of massive reef-building corals. |
publisher |
Public Library of Science (PLoS) |
publishDate |
2012 |
url |
https://doi.org/10.1371/journal.pone.0032859 https://doaj.org/article/4525ef1151d2496eb950a27cf94d89cc |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
PLoS ONE, Vol 7, Iss 3, p e32859 (2012) |
op_relation |
http://europepmc.org/articles/PMC3291612?pdf=render https://doaj.org/toc/1932-6203 1932-6203 doi:10.1371/journal.pone.0032859 https://doaj.org/article/4525ef1151d2496eb950a27cf94d89cc |
op_doi |
https://doi.org/10.1371/journal.pone.0032859 |
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PLoS ONE |
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7 |
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3 |
container_start_page |
e32859 |
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