Low coral cover in a high-CO2 world
Coral reefs generally exist within a relatively narrow band of temperatures, light, and seawater aragonite saturation states. The growth of coral reefs is minimal or nonexistent outside this envelope. Climate change, through its effect on ocean temperature, has already had an impact on the world...
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American Geophysical Union
2005
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:55716 2023-05-15T16:39:19+02:00 Low coral cover in a high-CO2 world Hoegh-Guldberg, Ove 2005-01-01 https://espace.library.uq.edu.au/view/UQ:55716/UQ55716_OA.pdf https://espace.library.uq.edu.au/view/UQ:55716 eng eng American Geophysical Union doi:10.1029/2004JC002528 issn:0148-0227 orcid:0000-0001-7510-6713 Oceanography Great-barrier-reef Co2 Partial-pressure Calcium-carbonate Saturation Vostok Ice Core Climate-change Ultraviolet-radiation Elevated-temperature Fish Communities Bleaching Event Stylophora-pistillata 069902 Global Change Biology Journal Article 2005 ftunivqespace https://doi.org/10.1029/2004JC002528 2020-12-28T23:22:03Z Coral reefs generally exist within a relatively narrow band of temperatures, light, and seawater aragonite saturation states. The growth of coral reefs is minimal or nonexistent outside this envelope. Climate change, through its effect on ocean temperature, has already had an impact on the world's coral reefs, with almost 30% of corals having disappeared since the beginning of the 1980s. Abnormally warm temperatures cause corals to bleach ( lose their brown dinoflagellate symbionts) and, if elevated for long enough, to die. Increasing atmospheric CO2 is also potentially affecting coral reefs by lowering the aragonite saturation state of seawater, making carbonate ions less available for calcification. The synergistic interaction of elevated temperature and CO2 is likely to produce major changes to coral reefs over the next few decades and centuries. Known tolerances of corals to projected changes to sea temperatures indicate that corals are unlikely to remain abundant on reefs and could be rare by the middle of this century if the atmospheric CO2 concentration doubles or triples. The combination of changes to sea temperature and carbonate ion availability could trigger large- scale changes in the biodiversity and function of coral reefs. The ramifications of these changes for the hundred of millions of coral reef - dependent people and industries living in a high- CO2 world have yet to be properly defined. The weight of evidence suggests, however, that projected changes will cause major shifts in the prospects for industries and societies that depend on having healthy coral reefs along their coastlines. Article in Journal/Newspaper ice core The University of Queensland: UQ eSpace Journal of Geophysical Research 110 C9 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Oceanography Great-barrier-reef Co2 Partial-pressure Calcium-carbonate Saturation Vostok Ice Core Climate-change Ultraviolet-radiation Elevated-temperature Fish Communities Bleaching Event Stylophora-pistillata 069902 Global Change Biology |
spellingShingle |
Oceanography Great-barrier-reef Co2 Partial-pressure Calcium-carbonate Saturation Vostok Ice Core Climate-change Ultraviolet-radiation Elevated-temperature Fish Communities Bleaching Event Stylophora-pistillata 069902 Global Change Biology Hoegh-Guldberg, Ove Low coral cover in a high-CO2 world |
topic_facet |
Oceanography Great-barrier-reef Co2 Partial-pressure Calcium-carbonate Saturation Vostok Ice Core Climate-change Ultraviolet-radiation Elevated-temperature Fish Communities Bleaching Event Stylophora-pistillata 069902 Global Change Biology |
description |
Coral reefs generally exist within a relatively narrow band of temperatures, light, and seawater aragonite saturation states. The growth of coral reefs is minimal or nonexistent outside this envelope. Climate change, through its effect on ocean temperature, has already had an impact on the world's coral reefs, with almost 30% of corals having disappeared since the beginning of the 1980s. Abnormally warm temperatures cause corals to bleach ( lose their brown dinoflagellate symbionts) and, if elevated for long enough, to die. Increasing atmospheric CO2 is also potentially affecting coral reefs by lowering the aragonite saturation state of seawater, making carbonate ions less available for calcification. The synergistic interaction of elevated temperature and CO2 is likely to produce major changes to coral reefs over the next few decades and centuries. Known tolerances of corals to projected changes to sea temperatures indicate that corals are unlikely to remain abundant on reefs and could be rare by the middle of this century if the atmospheric CO2 concentration doubles or triples. The combination of changes to sea temperature and carbonate ion availability could trigger large- scale changes in the biodiversity and function of coral reefs. The ramifications of these changes for the hundred of millions of coral reef - dependent people and industries living in a high- CO2 world have yet to be properly defined. The weight of evidence suggests, however, that projected changes will cause major shifts in the prospects for industries and societies that depend on having healthy coral reefs along their coastlines. |
format |
Article in Journal/Newspaper |
author |
Hoegh-Guldberg, Ove |
author_facet |
Hoegh-Guldberg, Ove |
author_sort |
Hoegh-Guldberg, Ove |
title |
Low coral cover in a high-CO2 world |
title_short |
Low coral cover in a high-CO2 world |
title_full |
Low coral cover in a high-CO2 world |
title_fullStr |
Low coral cover in a high-CO2 world |
title_full_unstemmed |
Low coral cover in a high-CO2 world |
title_sort |
low coral cover in a high-co2 world |
publisher |
American Geophysical Union |
publishDate |
2005 |
url |
https://espace.library.uq.edu.au/view/UQ:55716/UQ55716_OA.pdf https://espace.library.uq.edu.au/view/UQ:55716 |
genre |
ice core |
genre_facet |
ice core |
op_relation |
doi:10.1029/2004JC002528 issn:0148-0227 orcid:0000-0001-7510-6713 |
op_doi |
https://doi.org/10.1029/2004JC002528 |
container_title |
Journal of Geophysical Research |
container_volume |
110 |
container_issue |
C9 |
_version_ |
1766029656612405248 |