Seawater carbonate chemistry and gross photosynthesis rate, respiration rate, alpha diversity index and numbers of sequences distributed over samples of three reef building coral species

• Main Authors: Camp, Emma F, Suggett, David J, Pogoreutz, Claudia, Nitschke, Matthew R, Houlbrèque, Fanny, Hume, Benjamin C C, Gardner, Stephanie G, Zampighi, Marco, Rodolfo-Metalpa, Riccardo, Voolstra, Christian R
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2020
• Subjects: Acropora muricata; Acropora pulchra; Animalia; Benthic animals; Benthos; Cnidaria; Coast and continental shelf; Community composition and diversity; Field observation; Oxygen; Porites lutea; Primary production/Photosynthesis; Respiration; Single species; South Pacific; Tropical; Event label; Type; Habitat; Species; Registration number of species; Uniform resource locator/link to reference; Respiration rate, oxygen; Respiration rate, oxygen, standard error; Gross photosynthesis rate, oxygen; Gross photosynthesis rate, oxygen, standard error; Symbiodiniaceae; Symbiodiniaceae, standard error; Gross photosynthesis rate, oxygen, per cell; Gross photosynthesis rate, oxygen, per cell, standard error; Replicate; Chao 1 richness; Simpson's index; Evenness of species; Number of sequences; pH; pH, standard error; Temperature, water; Temperature, water, standard error; Oxygen, standard error; Salinity; Salinity, standard error; Alkalinity, total; Alkalinity, total, standard error; Aragonite saturation state; Aragonite saturation state, standard error; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air, standard error; Bicarbonate ion; Bicarbonate ion, standard error; Carbonate ion; Carbonate ion, standard error; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Carbon, inorganic, dissolved; Calcite saturation state; Experiment; Potentiometric; Potentiometric titration; Calculated using CO2SYS; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Pacific; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.925184; https://doi.pangaea.de/10.1594/PANGAEA.925184

Climate change threatens the survival of scleractinian coral from exposure to concurrent ocean warming, acidification and deoxygenation; how corals can potentially adapt to this trio of stressors is currently unknown. This study investigates three coral species (Acropora muricata, Acropora pulchra and Porites lutea) dominant in an extreme mangrove lagoon (Bouraké, New Caledonia) where abiotic conditions exceed those predicted for many reef sites over the next 100 years under climate change and compared them to conspecifics from an environmentally more benign reef habitat. We studied holobiont physiology as well as plasticity in coral-associated microorganisms (Symbiodiniaceae and bacteria) through ITS2 and 16S rRNA sequencing, respectively. We hypothesised that differences in coral-associated microorganisms (Symbiodiniaceae and bacteria) between the lagoonal and adjacent reef habitats may support coral host productivity and ultimately the ability of corals to live in extreme environments. In the lagoon, all coral species exhibited a metabolic adjustment of reduced photosynthesis-to-respiration ratios (P/R), but this was accompanied by highly divergent coral host-specific microbial associations. This was substantiated by the absence of shared ITS2-type profiles (proxies for Symbiodiniaceae genotypes). We observed that ITS2 profiles originating from Durusdinium taxa made up : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2020) was used to compute a complete and consistent set of carbonate system variables, as described by Nisumaa et al. (2010). In this dataset the original values were archived in addition with the recalculated parameters (see related PI). The date of carbonate chemistry calculation by seacarb is 2020-11-20.