Ocean acidification and calcifying reef organisms: A mesocosm investigation
Abstract A long-term (10 months) controlled experiment was conducted to test the impact of increased partial pressure of carbon dioxide (pCO 2 ) on common calcifying coral reef organisms. The experiment was conducted in replicate continuous flow coral reef mesocosms flushed with unfiltered sea water...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1044.5523 2023-05-15T17:51:43+02:00 Ocean acidification and calcifying reef organisms: A mesocosm investigation P L Jokiel Ae K S Rodgers Ae I B Kuffner Ae A J Andersson Ae E F Cox Ae F T Mackenzie The Pennsylvania State University CiteSeerX Archives 2008 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1044.5523 http://www.soest.hawaii.edu/oceanography/faculty/mackenzie/acidification.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1044.5523 http://www.soest.hawaii.edu/oceanography/faculty/mackenzie/acidification.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.soest.hawaii.edu/oceanography/faculty/mackenzie/acidification.pdf text 2008 ftciteseerx 2020-04-05T00:16:08Z Abstract A long-term (10 months) controlled experiment was conducted to test the impact of increased partial pressure of carbon dioxide (pCO 2 ) on common calcifying coral reef organisms. The experiment was conducted in replicate continuous flow coral reef mesocosms flushed with unfiltered sea water from Kaneohe Bay, Oahu, Hawaii. Mesocosms were located in full sunlight and experienced diurnal and seasonal fluctuations in temperature and sea water chemistry characteristic of the adjacent reef flat. Treatment mesocosms were manipulated to simulate an increase in pCO 2 to levels expected in this century [midday pCO 2 levels exceeding control mesocosms by 365 ± 130 latm (mean ± sd)]. Acidification had a profound impact on the development and growth of crustose coralline algae (CCA) populations. During the experiment, CCA developed 25% cover in the control mesocosms and only 4% in the acidified mesocosms, representing an 86% relative reduction. Free-living associations of CCA known as rhodoliths living in the control mesocosms grew at a rate of 0.6 g buoyant weight year -1 while those in the acidified experimental treatment decreased in weight at a rate of 0.9 g buoyant weight year -1 , representing a 250% difference. CCA play an important role in the growth and stabilization of carbonate reefs, so future changes of this magnitude could greatly impact coral reefs throughout the world. Coral calcification decreased between 15% and 20% under acidified conditions. Linear extension decreased by 14% under acidified conditions in one experiment. Larvae of the coral Pocillopora damicornis were able to recruit under the acidified conditions. In addition, there was no significant difference in production of gametes by the coral Montipora capitata after 6 months of exposure to the treatments. Text Ocean acidification Unknown |
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Abstract A long-term (10 months) controlled experiment was conducted to test the impact of increased partial pressure of carbon dioxide (pCO 2 ) on common calcifying coral reef organisms. The experiment was conducted in replicate continuous flow coral reef mesocosms flushed with unfiltered sea water from Kaneohe Bay, Oahu, Hawaii. Mesocosms were located in full sunlight and experienced diurnal and seasonal fluctuations in temperature and sea water chemistry characteristic of the adjacent reef flat. Treatment mesocosms were manipulated to simulate an increase in pCO 2 to levels expected in this century [midday pCO 2 levels exceeding control mesocosms by 365 ± 130 latm (mean ± sd)]. Acidification had a profound impact on the development and growth of crustose coralline algae (CCA) populations. During the experiment, CCA developed 25% cover in the control mesocosms and only 4% in the acidified mesocosms, representing an 86% relative reduction. Free-living associations of CCA known as rhodoliths living in the control mesocosms grew at a rate of 0.6 g buoyant weight year -1 while those in the acidified experimental treatment decreased in weight at a rate of 0.9 g buoyant weight year -1 , representing a 250% difference. CCA play an important role in the growth and stabilization of carbonate reefs, so future changes of this magnitude could greatly impact coral reefs throughout the world. Coral calcification decreased between 15% and 20% under acidified conditions. Linear extension decreased by 14% under acidified conditions in one experiment. Larvae of the coral Pocillopora damicornis were able to recruit under the acidified conditions. In addition, there was no significant difference in production of gametes by the coral Montipora capitata after 6 months of exposure to the treatments. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
P L Jokiel Ae K S Rodgers Ae I B Kuffner Ae A J Andersson Ae E F Cox Ae F T Mackenzie |
spellingShingle |
P L Jokiel Ae K S Rodgers Ae I B Kuffner Ae A J Andersson Ae E F Cox Ae F T Mackenzie Ocean acidification and calcifying reef organisms: A mesocosm investigation |
author_facet |
P L Jokiel Ae K S Rodgers Ae I B Kuffner Ae A J Andersson Ae E F Cox Ae F T Mackenzie |
author_sort |
P L Jokiel |
title |
Ocean acidification and calcifying reef organisms: A mesocosm investigation |
title_short |
Ocean acidification and calcifying reef organisms: A mesocosm investigation |
title_full |
Ocean acidification and calcifying reef organisms: A mesocosm investigation |
title_fullStr |
Ocean acidification and calcifying reef organisms: A mesocosm investigation |
title_full_unstemmed |
Ocean acidification and calcifying reef organisms: A mesocosm investigation |
title_sort |
ocean acidification and calcifying reef organisms: a mesocosm investigation |
publishDate |
2008 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1044.5523 http://www.soest.hawaii.edu/oceanography/faculty/mackenzie/acidification.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
http://www.soest.hawaii.edu/oceanography/faculty/mackenzie/acidification.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1044.5523 http://www.soest.hawaii.edu/oceanography/faculty/mackenzie/acidification.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
_version_ |
1766158953128919040 |