Seawater carbonate chemistry and combined responses of primary coral polyps and their algal endosymbionts to decreasing seawater pH ...

• Main Authors: Scucchia, Federica, Malik, Assaf, Zaslansky, P, Putnam, H M, Mass, Tali
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Animalia; Benthic animals; Benthos; Cnidaria; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Growth/Morphology; Laboratory experiment; Mortality/Survival; Other studied parameter or process; Primary production/Photosynthesis; Red Sea; Reproduction; FOS Medical biotechnology; Respiration; Single species; Stylophora pistillata; Temperate; Zooplankton; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment duration; Treatment; Coral polyp; Identification; Section; Calyx area; Crown area; Septa thickness; Number of rapid accretion deposits; Basal area; Number of rapid accretion deposits per basal area; Sample code/label; Larvae, settled; Larvae, swimming; Larvae; Larvae, dead; Survival; Fluorescence intensity; Maximum quantum yield of photosystem II; Irradiance; Electron transport rate, relative; Non photochemical quenching; Initial slope of rapid light curve; Minimal photoinhibition point; Planar area; Chlorophyll a; Number of cells; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.938670; https://doi.pangaea.de/10.1594/PANGAEA.938670

With coral reefs declining globally, resilience of these ecosystems hinges on successful coral recruitment. However, knowledge of the acclimatory and/or adaptive potential in response to environmental challenges such as ocean acidification (OA) in earliest life stages is limited. Our combination of physiological measurements, microscopy, computed tomography techniques and gene expression analysis allowed us to thoroughly elucidate the mechanisms underlying the response of early-life stages of corals, together with their algal partners, to the projected decline in oceanic pH. We observed extensive physiological, morphological and transcriptional changes in surviving recruits, and the transition to a less-skeleton/more-tissue phenotype. We found that decreased pH conditions stimulate photosynthesis and endosymbiont growth, and gene expression potentially linked to photosynthates translocation. Our unique holistic study discloses the previously unseen intricate net of interacting mechanisms that regulate the ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2021) 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 2021-11-22. ...