Bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios
The bioeroding sponge Cliona orientalis is photosymbiotic with dinoflagellates of the genus Symbiodinium and is pervasive on the Great Barrier Reef. We investigated how C. orientalis responded to past and future ocean conditions in a simulated community setting. The experiment lasted over an Austral...
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:724873 2023-05-15T17:51:40+02:00 Bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios Fang, James K. H. Schönberg, Christine H. L. Mello-Athayde, Matheus A. Achlatis, Michelle Hoegh-Guldberg, Ove Dove, Sophie 2018-03-24 https://espace.library.uq.edu.au/view/UQ:724873 eng eng Springer Verlag doi:10.1007/s00442-018-4105-7 issn:1432-1939 issn:0029-8549 orcid:0000-0002-2969-7978 orcid:0000-0001-7510-6713 orcid:0000-0003-1823-8634 Not set CE0561435 LP0775303 Acidification Cliona orientalis Great Barrier Reef Symbiodinium Warming 1105 Ecology Evolution Behavior and Systematics Journal Article 2018 ftunivqespace https://doi.org/10.1007/s00442-018-4105-7 2020-12-08T03:21:26Z The bioeroding sponge Cliona orientalis is photosymbiotic with dinoflagellates of the genus Symbiodinium and is pervasive on the Great Barrier Reef. We investigated how C. orientalis responded to past and future ocean conditions in a simulated community setting. The experiment lasted over an Austral summer under four carbon dioxide emission scenarios: a pre-industrial scenario (PI), a present-day scenario (PD; control), and two future scenarios of combined ocean acidification and ocean warming, i.e., B1 (intermediate) and A1FI (extreme). The four scenarios also simulated natural variability of carbon dioxide partial pressure and temperature in seawater. Responses of C. orientalis generally remained similar between the PI and PD treatments. C. orientalis under B1 displayed a dramatic increase in lateral tissue extension, but bleached and displayed reduced rates of respiration and photosynthesis. Some B1 sponge replicates died by the end of the experiment. Under A1FI, strong bleaching and subsequent mortality of all C. orientalis replicates occurred at an early stage of the experiment. Mortality arrested bioerosion by C. orientalis under B1 and A1FI. Overall, the absolute amount of calcium carbonate eroded by C. orientalis under B1 or A1FI was similar to that under PI or PD at the end of the experiment. Although bioerosion rates were raised by short-term experimental acidification in previous studies, our findings from the photosymbiotic C. orientalis imply that the effects of bioerosion on reef carbonate budgets may only be temporary if the bioeroders cannot survive long-term in the future oceans. Article in Journal/Newspaper Ocean acidification The University of Queensland: UQ eSpace Austral Oecologia 187 1 25 35 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Acidification Cliona orientalis Great Barrier Reef Symbiodinium Warming 1105 Ecology Evolution Behavior and Systematics |
spellingShingle |
Acidification Cliona orientalis Great Barrier Reef Symbiodinium Warming 1105 Ecology Evolution Behavior and Systematics Fang, James K. H. Schönberg, Christine H. L. Mello-Athayde, Matheus A. Achlatis, Michelle Hoegh-Guldberg, Ove Dove, Sophie Bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios |
topic_facet |
Acidification Cliona orientalis Great Barrier Reef Symbiodinium Warming 1105 Ecology Evolution Behavior and Systematics |
description |
The bioeroding sponge Cliona orientalis is photosymbiotic with dinoflagellates of the genus Symbiodinium and is pervasive on the Great Barrier Reef. We investigated how C. orientalis responded to past and future ocean conditions in a simulated community setting. The experiment lasted over an Austral summer under four carbon dioxide emission scenarios: a pre-industrial scenario (PI), a present-day scenario (PD; control), and two future scenarios of combined ocean acidification and ocean warming, i.e., B1 (intermediate) and A1FI (extreme). The four scenarios also simulated natural variability of carbon dioxide partial pressure and temperature in seawater. Responses of C. orientalis generally remained similar between the PI and PD treatments. C. orientalis under B1 displayed a dramatic increase in lateral tissue extension, but bleached and displayed reduced rates of respiration and photosynthesis. Some B1 sponge replicates died by the end of the experiment. Under A1FI, strong bleaching and subsequent mortality of all C. orientalis replicates occurred at an early stage of the experiment. Mortality arrested bioerosion by C. orientalis under B1 and A1FI. Overall, the absolute amount of calcium carbonate eroded by C. orientalis under B1 or A1FI was similar to that under PI or PD at the end of the experiment. Although bioerosion rates were raised by short-term experimental acidification in previous studies, our findings from the photosymbiotic C. orientalis imply that the effects of bioerosion on reef carbonate budgets may only be temporary if the bioeroders cannot survive long-term in the future oceans. |
format |
Article in Journal/Newspaper |
author |
Fang, James K. H. Schönberg, Christine H. L. Mello-Athayde, Matheus A. Achlatis, Michelle Hoegh-Guldberg, Ove Dove, Sophie |
author_facet |
Fang, James K. H. Schönberg, Christine H. L. Mello-Athayde, Matheus A. Achlatis, Michelle Hoegh-Guldberg, Ove Dove, Sophie |
author_sort |
Fang, James K. H. |
title |
Bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios |
title_short |
Bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios |
title_full |
Bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios |
title_fullStr |
Bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios |
title_full_unstemmed |
Bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios |
title_sort |
bleaching and mortality of a photosymbiotic bioeroding sponge under future carbon dioxide emission scenarios |
publisher |
Springer Verlag |
publishDate |
2018 |
url |
https://espace.library.uq.edu.au/view/UQ:724873 |
geographic |
Austral |
geographic_facet |
Austral |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
doi:10.1007/s00442-018-4105-7 issn:1432-1939 issn:0029-8549 orcid:0000-0002-2969-7978 orcid:0000-0001-7510-6713 orcid:0000-0003-1823-8634 Not set CE0561435 LP0775303 |
op_doi |
https://doi.org/10.1007/s00442-018-4105-7 |
container_title |
Oecologia |
container_volume |
187 |
container_issue |
1 |
container_start_page |
25 |
op_container_end_page |
35 |
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1766158889398566912 |