Ocean acidification and warming scenarios increase microbioerosion of coral skeletons
Abstract Biological mediation of carbonate dissolution represents a fundamental component of the destructive forces acting on coral reef ecosystems. Whereas ocean acidification can increase dissolution of carbonate substrates, the combined impact of ocean acidification and warming on the microbioero...
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crwiley:10.1111/gcb.12158 2024-06-23T07:55:48+00:00 Ocean acidification and warming scenarios increase microbioerosion of coral skeletons Reyes‐Nivia, Catalina Diaz‐Pulido, Guillermo Kline, David Guldberg, Ove‐Hoegh Dove, Sophie 2013 http://dx.doi.org/10.1111/gcb.12158 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12158 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12158 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Global Change Biology volume 19, issue 6, page 1919-1929 ISSN 1354-1013 1365-2486 journal-article 2013 crwiley https://doi.org/10.1111/gcb.12158 2024-06-06T04:23:32Z Abstract Biological mediation of carbonate dissolution represents a fundamental component of the destructive forces acting on coral reef ecosystems. Whereas ocean acidification can increase dissolution of carbonate substrates, the combined impact of ocean acidification and warming on the microbioerosion of coral skeletons remains unknown. Here, we exposed skeletons of the reef‐building corals, Porites cylindrica and Isopora cuneata , to present‐day (Control: 400 μatm – 24 °C) and future p CO 2 –temperature scenarios projected for the end of the century (Medium: +230 μatm – +2 °C; High: +610 μatm – +4 °C). Skeletons were also subjected to permanent darkness with initial sodium hypochlorite incubation, and natural light without sodium hypochlorite incubation to isolate the environmental effect of acidic seawater (i.e., Ω aragonite <1) from the biological effect of photosynthetic microborers. Our results indicated that skeletal dissolution is predominantly driven by photosynthetic microborers, as samples held in the dark did not decalcify. In contrast, dissolution of skeletons exposed to light increased under elevated p CO 2 –temperature scenarios, with P. cylindrica experiencing higher dissolution rates per month (89%) than I. cuneata (46%) in the high treatment relative to control. The effects of future p CO 2 –temperature scenarios on the structure of endolithic communities were only identified in P. cylindrica and were mostly associated with a higher abundance of the green algae Ostreobium spp. Enhanced skeletal dissolution was also associated with increased endolithic biomass and respiration under elevated p CO 2 –temperature scenarios. Our results suggest that future projections of ocean acidification and warming will lead to increased rates of microbioerosion. However, the magnitude of bioerosion responses may depend on the structural properties of coral skeletons, with a range of implications for reef carbonate losses under warmer and more acidic oceans. Article in Journal/Newspaper Ocean acidification Wiley Online Library Global Change Biology 19 6 1919 1929 |
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English |
description |
Abstract Biological mediation of carbonate dissolution represents a fundamental component of the destructive forces acting on coral reef ecosystems. Whereas ocean acidification can increase dissolution of carbonate substrates, the combined impact of ocean acidification and warming on the microbioerosion of coral skeletons remains unknown. Here, we exposed skeletons of the reef‐building corals, Porites cylindrica and Isopora cuneata , to present‐day (Control: 400 μatm – 24 °C) and future p CO 2 –temperature scenarios projected for the end of the century (Medium: +230 μatm – +2 °C; High: +610 μatm – +4 °C). Skeletons were also subjected to permanent darkness with initial sodium hypochlorite incubation, and natural light without sodium hypochlorite incubation to isolate the environmental effect of acidic seawater (i.e., Ω aragonite <1) from the biological effect of photosynthetic microborers. Our results indicated that skeletal dissolution is predominantly driven by photosynthetic microborers, as samples held in the dark did not decalcify. In contrast, dissolution of skeletons exposed to light increased under elevated p CO 2 –temperature scenarios, with P. cylindrica experiencing higher dissolution rates per month (89%) than I. cuneata (46%) in the high treatment relative to control. The effects of future p CO 2 –temperature scenarios on the structure of endolithic communities were only identified in P. cylindrica and were mostly associated with a higher abundance of the green algae Ostreobium spp. Enhanced skeletal dissolution was also associated with increased endolithic biomass and respiration under elevated p CO 2 –temperature scenarios. Our results suggest that future projections of ocean acidification and warming will lead to increased rates of microbioerosion. However, the magnitude of bioerosion responses may depend on the structural properties of coral skeletons, with a range of implications for reef carbonate losses under warmer and more acidic oceans. |
format |
Article in Journal/Newspaper |
author |
Reyes‐Nivia, Catalina Diaz‐Pulido, Guillermo Kline, David Guldberg, Ove‐Hoegh Dove, Sophie |
spellingShingle |
Reyes‐Nivia, Catalina Diaz‐Pulido, Guillermo Kline, David Guldberg, Ove‐Hoegh Dove, Sophie Ocean acidification and warming scenarios increase microbioerosion of coral skeletons |
author_facet |
Reyes‐Nivia, Catalina Diaz‐Pulido, Guillermo Kline, David Guldberg, Ove‐Hoegh Dove, Sophie |
author_sort |
Reyes‐Nivia, Catalina |
title |
Ocean acidification and warming scenarios increase microbioerosion of coral skeletons |
title_short |
Ocean acidification and warming scenarios increase microbioerosion of coral skeletons |
title_full |
Ocean acidification and warming scenarios increase microbioerosion of coral skeletons |
title_fullStr |
Ocean acidification and warming scenarios increase microbioerosion of coral skeletons |
title_full_unstemmed |
Ocean acidification and warming scenarios increase microbioerosion of coral skeletons |
title_sort |
ocean acidification and warming scenarios increase microbioerosion of coral skeletons |
publisher |
Wiley |
publishDate |
2013 |
url |
http://dx.doi.org/10.1111/gcb.12158 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.1111%2Fgcb.12158 https://onlinelibrary.wiley.com/doi/pdf/10.1111/gcb.12158 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Global Change Biology volume 19, issue 6, page 1919-1929 ISSN 1354-1013 1365-2486 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.1111/gcb.12158 |
container_title |
Global Change Biology |
container_volume |
19 |
container_issue |
6 |
container_start_page |
1919 |
op_container_end_page |
1929 |
_version_ |
1802648514460647424 |