Data from: Elevated pCO2 affects tissue biomass composition, but not calcification, in a reef coral under two light regimes ...

• Main Authors: Wall, Christopher B., Mason, Robert A. B., Ellis, William R., Cunning, Ross, Gates, Ruth D.
• Format: Dataset
• Language: English
• Published: Dryad 2017
• Subjects: Pocillopora acuta; present; reef coral; Holocene; energy reserves; Ocean acidification
• Online Access: https://dx.doi.org/10.5061/dryad.5vg70; https://datadryad.org/stash/dataset/doi:10.5061/dryad.5vg70

Ocean acidification (OA) is predicted to reduce reef coral calcification rates and threaten the long-term growth of coral reefs under climate change. Reduced coral growth at elevated pCO2 may be buffered by sufficiently high irradiances; however, the interactive effects of OA and irradiance on other fundamental aspects of coral physiology, such as the composition and energetics of coral biomass, remain largely unexplored. This study tested the effects of two light treatments (7.5 versus 15.7 mol photons m−2 d−1) at ambient or elevated pCO2 (435 versus 957 µatm) on calcification, photopigment and symbiont densities, biomass reserves (lipids, carbohydrates, proteins), and biomass energy content (kJ) of the reef coral Pocillopora acuta from Kāne‘ohe Bay, Hawai‘i. While pCO2 and light had no effect on either area- or biomass-normalized calcification, tissue lipids gdw−1 and kJ gdw−1 were reduced 15% and 14% at high pCO2, and carbohydrate content increased 15% under high light. The combination of high light and ... : R markdown .Rmd fileThis is an R markdown .Rmd file. This file is opened in RStudio and has all script and code that generates the html R markdown output.Wall et al. OA_light coral biomass.RmdR markdown graphing and analyzing OA and light effectsThis R markdown has the code used to analyze seawater chemistry, generate normalized response variables, perform principal component analyses, run mixed effect models, and generate figures.Wall_et_al._OA_light_coral_biomass.htmlWall et al. OA-Light response variablesThis dataframe has all response variable measured in the experiment. Normalizing the responses to skeletal area or tissue biomass is performed in accompanying R-markdown.Wall et al_OAxLight_R.csvMetadata_Wall et al_OAxLight_R.docxWall et al. OA-Light seawater chemistryDataframe shows seawater chemistry for experimental pCO2 manipulations. See R markdown for more analyses.Seacarb_ALL TANKS.csvMetadata_SWchem_Treatments_OAxLight.docxWall et al. OA-Light seawater temperature and salinityThis data file ...