Conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral Pocillopora verrucosa
In densely populated communities, such as coral reefs, organisms can modify the physical and chemical environment for neighbouring individuals. We tested the hypothesis that colony density (12 colonies each placed ???0.5 cm apart versus ???8 cm apart) can modulate the physiological response (measure...
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ftcalifstateuniv:oai:dspace.calstate.edu:10211.3/198329 2023-05-15T17:49:55+02:00 Conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral Pocillopora verrucosa Evensen, Nicolas R. Edmunds, Peter J. 2017 http://hdl.handle.net/10211.3/198329 en eng The Journal of Experimental Biology doi.org/10.1242/jeb.152488 The Journal of Experimental Biology 220(6), 1097-1105. (2017) 0022-0949 http://hdl.handle.net/10211.3/198329 copyright 2017. Published by The Company of Biologist Ltd. pocillopora verrucosa ocean acidification densely aggregated corals conspecific aggregation Article 2017 ftcalifstateuniv https://doi.org/10.1242/jeb.152488 2022-04-13T11:38:19Z In densely populated communities, such as coral reefs, organisms can modify the physical and chemical environment for neighbouring individuals. We tested the hypothesis that colony density (12 colonies each placed ???0.5 cm apart versus ???8 cm apart) can modulate the physiological response (measured through rates of calcification, photosynthesis and respiration in the light and dark) of the coral Pocillopora verrucosa to partial pressure of CO2 (PCO2) treatments (???400 ??atm and ???1200 ??atm) by altering the seawater flow regimes experienced by colonies placed in aggregations within a flume at a single flow speed. While light calcification decreased 20% under elevated versus ambient PCO2 for colonies in low-density aggregations, light calcification of high-density aggregations increased 23% at elevated versus ambient PCO2. As a result, densely aggregated corals maintained calcification rates over 24 h that were comparable to those maintained under ambient PCO2, despite a 45% decrease in dark calcification at elevated versus ambient PCO2. Additionally, densely aggregated corals experienced reduced flow speeds and higher seawater retention times between colonies owing to the formation of eddies. These results support recent indications that neighbouring organisms, such as the conspecific coral colonies in the present example, can create small-scale refugia from the negative effects of ocean acidification. Article in Journal/Newspaper Ocean acidification California State University (CSU): DSpace Journal of Experimental Biology |
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Open Polar |
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California State University (CSU): DSpace |
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ftcalifstateuniv |
language |
English |
topic |
pocillopora verrucosa ocean acidification densely aggregated corals conspecific aggregation |
spellingShingle |
pocillopora verrucosa ocean acidification densely aggregated corals conspecific aggregation Evensen, Nicolas R. Edmunds, Peter J. Conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral Pocillopora verrucosa |
topic_facet |
pocillopora verrucosa ocean acidification densely aggregated corals conspecific aggregation |
description |
In densely populated communities, such as coral reefs, organisms can modify the physical and chemical environment for neighbouring individuals. We tested the hypothesis that colony density (12 colonies each placed ???0.5 cm apart versus ???8 cm apart) can modulate the physiological response (measured through rates of calcification, photosynthesis and respiration in the light and dark) of the coral Pocillopora verrucosa to partial pressure of CO2 (PCO2) treatments (???400 ??atm and ???1200 ??atm) by altering the seawater flow regimes experienced by colonies placed in aggregations within a flume at a single flow speed. While light calcification decreased 20% under elevated versus ambient PCO2 for colonies in low-density aggregations, light calcification of high-density aggregations increased 23% at elevated versus ambient PCO2. As a result, densely aggregated corals maintained calcification rates over 24 h that were comparable to those maintained under ambient PCO2, despite a 45% decrease in dark calcification at elevated versus ambient PCO2. Additionally, densely aggregated corals experienced reduced flow speeds and higher seawater retention times between colonies owing to the formation of eddies. These results support recent indications that neighbouring organisms, such as the conspecific coral colonies in the present example, can create small-scale refugia from the negative effects of ocean acidification. |
format |
Article in Journal/Newspaper |
author |
Evensen, Nicolas R. Edmunds, Peter J. |
author_facet |
Evensen, Nicolas R. Edmunds, Peter J. |
author_sort |
Evensen, Nicolas R. |
title |
Conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral Pocillopora verrucosa |
title_short |
Conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral Pocillopora verrucosa |
title_full |
Conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral Pocillopora verrucosa |
title_fullStr |
Conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral Pocillopora verrucosa |
title_full_unstemmed |
Conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral Pocillopora verrucosa |
title_sort |
conspecific aggregations mitigate the effects of ocean acidification on calcification of the coral pocillopora verrucosa |
publisher |
The Journal of Experimental Biology |
publishDate |
2017 |
url |
http://hdl.handle.net/10211.3/198329 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
doi.org/10.1242/jeb.152488 The Journal of Experimental Biology 220(6), 1097-1105. (2017) 0022-0949 http://hdl.handle.net/10211.3/198329 |
op_rights |
copyright 2017. Published by The Company of Biologist Ltd. |
op_doi |
https://doi.org/10.1242/jeb.152488 |
container_title |
Journal of Experimental Biology |
_version_ |
1766156433385062400 |