Data Set (knb-lter-mcr.5005.4)

MCR LTER: Coral Reef: Coral Growth in Temperature and Alkalinity Treatments: Edmunds 2011 Limnology & Oceanography

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Data Set General Information:
Identifier: knb-lter-mcr.5005.4 (in the knb Catalog System)

These data were generated from a one-time experiment in support of a coral ecophysiology manuscript; published in

Edmunds, PJ (2011) Limnology and Oceanography 56: 2402-2410 doi: 10.4319/lo.2011.56.6.2402

I tested the hypothesis that the effects of high pCO2 and temperature on massive Porites spp. (Scleractinia) are modified by heterotrophic feeding (zooplanktivory). Small colonies of massive Porites spp. from the back reef of Moorea, French Polynesia, were incubated for 1 month under combinations of temperature (29.3 C vs. 25.6 C), pCO2 (41.6 vs. 81.5 Pa), and feeding regimes (none vs. ad libitum access to live Artemia spp.), with the response assessed using calcification and biomass. Area-normalized calcification was unaffected by pCO2, temperature, and the interaction between the two, although it increased 40% with feeding. Biomass increased 35% with feeding and tended to be higher at 25.6 C compared to 29.3 C, and as a result, biomass-normalized calcification statistically was unaffected by feeding, but was depressed 12-17% by high pCO2, with the effect accentuated at 25.6 C. These results show that massive Porites spp. has the capacity to resist the effects on calcification of 1 month exposure to 81.5 Pa pCO2 through heterotrophy and changes in biomass. Area-normalized calcification is sustained at high pCO2 by a greater biomass with a reduced biomass-normalized rate of calcification. This mechanism may play a role in determining the extent to which corals can resist the long-term effects of ocean acidification.

Publication Date: 2012-02-08
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Time Period:
Detailed Data Description and Download:
Data published in Fig. 1A and Fig. 1C of Edmunds, PJ (2011) Limnology and Oceanography 56: 2402-2410.
Biomass and Zooxanthellae
Data published in Fig. 1B and Fig. 2a and b of Edmunds, PJ (2011) Limnology and Oceanography 56: 2402-2410. Zooxanthellae per biomass (as in Fig. 2b) is calculated by dividing total zooxanthellae by biomass. Zooxanthallae per area (as in Fig. 2a) is calculated by dividing total zooxanthellae by area.
Seawater conditions
Data published in Table 1 of Edmunds, PJ (2011) Limnology and Oceanography 56: 2402-2410.
People and Organizations:
View complete information for all parties
Contact: Information Manager, Moorea Coral Reef LTER [  email ]
Organization Moorea Coral Reef LTER
Owner: Edmunds, Peter (Moorea Coral Reef LTER, Principal Investigator) [  email ]
Associate: Moriarty, Vincent (Moorea Coral Reef LTER, Lead Field Technician)

Data Set Citation

How to cite this dataset: Edmunds, P of Moorea Coral Reef LTER. 2012. MCR LTER: Coral Reef: Coral Growth in Temperature and Alkalinity Treatments: Edmunds 2011 Limnology & Oceanography. knb-lter-mcr.5005.4

To request a DOI, send an email request for more information about this package's identifiers to use in a citation.

Key Words and Terms

By Thesaurus:
MCR, LTER, Long-term Time Series, French Polynesia, Moorea, University of California Santa Barbara, California State University Northridge, NSF, Gordon and Betty Moore Foundation, Richard B. Gump South Pacific Research Station
Scleractinia, Porites, Scleractinian Coral
NBII Biocomplexity Thesaurus Corals, Populations, Carbonate rocks, Coral Reefs, Lagoons, Shallow water, Marine environments, Polyps (organisms)
LTER Core Research Area Disturbance
MCR Research Theme Ocean Acidification, Reef Resistance and Resilience
MCR-LTER Working Group Population and Community Dynamics

Data Set Usage Rights

Data collected under the auspices of the MCR LTER are available to the public after primary publication, or at most two years after the completion of the study unless proprietary restrictions are warranted. Use of MCR LTER data is subject to acceptance of the following conditions:

  • 1. The user agrees to provide valid name and contact information prior to downloading online data. This information will be used to contact the user in case of changes to the data, and may also be used by data set authors and MCR LTER project administrators to document data usage.
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  • 8. Any violation of the terms of this agreement will result in immediate forfeiture of the data and loss of access privileges to other MCR LTER data sets.

Additional Metadata

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