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  • MCR LTER: Coral Reef: Coral Larval Metabolism in pH and Temperature Treatments
  • Moorea Coral Reef LTER
  • Rivest, Emily; Moorea Coral Reef LTER
  • 2014-01-28
  • In this study, we explored plasticity of physiological responses of coral larvae from a reef in French Polynesia. The study was motivated by these questions: (1) what is the present-day exposure of Pocillopora damicornis to natural variability of pH and temperature on the natal reef?, (2) what is the response of P. damicornis larvae to conditions of decreased pH and warming, measured via two indices of metabolism - rates of oxygen consumption and citrate synthase activity?, and (3) are there differences in larval sensitivity to environmental change between cohorts that are released from adult colonies at different times? P. damicornis larvae were incubated for 6 hours in seawater containing combinations of CO2 concentration (450 and 950 μatm) and temperature (28 and 30C). Rates of larval oxygen consumption were higher at elevated temperatures. In contrast, high CO2 levels elicited depressed metabolic rates, most dramatically for larvae released later in the spawning period. Rates of citrate synthase, a rate-limiting enzyme in aerobic metabolism, suggested a biochemical limit for increasing oxidative capacity in a warming, acidifying ocean. Biological responses were also compared between cohorts, larvae released from adult colonies on the same day. The metabolic physiology of P. damicornis larvae varied significantly by day of release. Without adaptation or acclimatization, only a portion of naive P. damicornis larvae may have suitable metabolic phenotypes for maintaining function and fitness in an end-of-the century ocean. These data are published in Rivest, E.B. and G.E. Hofmann. 2014. Responses of the metabolism of the larvae of Pocillopora damicornis to ocean acidification and warming. PLoS ONE DOI:10.1371/journal.pone.0096172
  • N: -17.4803      S: -17.4803      E: -149.7989      W: -149.7989
  • knb-lter-mcr.2008.2  
  • 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. 2. The user agrees to cite the data set author and MCR LTER in all publications in which the data are used, as per the instructions in the data documentation. If no specific instructions are provided in the data documentation, the user is requested to include the following statement: "Data sets were provided by the Moorea Coral Reef Ecosystem LTER, funded by the US National Science Foundation (OCE-0417412)." 3. The user agrees to provide one copy of any manuscript based on MCR LTER data to the data set author prior to submitting it for publication. 4. The user agrees to send two hard copies of any published manuscript based on MCR LTER data to the following address: Dr. Andrew J. Brooks Deputy Program Director, MCR LTER Marine Science Institute University of California Santa Barbara, CA 93106-6150 The user also agrees to send one electronic copy (pdf format) to the following e-mail address: 5. Users are prohibited from selling or redistributing any data provided by MCR LTER without explicit prior permission. 6. Users are encouraged to contact original investigators responsible for data. Where appropriate, researchers whose projects are integrally dependent on MCR LTER data are encouraged to consider collaboration and/or co-authorship with original investigators. 7. Extensive efforts are made to ensure that online data are accurate and up to date, but the authors and the MCR LTER will not take responsibility for any errors that may exist in data provided online. Furthermore, the user assumes all responsibility for errors in analysis or judgment resulting from use of the data. 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.
  • doi:10.6073/pasta/4aaa551e16e5a1fbf0ea8eebca68c10b
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