Seawater carbonate chemistry and tissue necrosis, photosynthetic efficiency and colour index of seven coral species ...

• Main Authors: Godefroid, Mathilde, Arçuby, Robin, Lacube, Yann, Espiau, Benoit, Dupont, Sam, Gazeau, Frédéric, Metian, Marc, Hédouin, Laetitia
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Acropora cytherea; Acropora hyacinthus; Acropora pulchra; Animalia; Benthic animals; Benthos; Cnidaria; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Laboratory experiment; Leptastrea pruinosa; Montipora grisea; Mortality/Survival; Other studied parameter or process; Pavona cactus; Pocillopora verrucosa; Primary production/Photosynthesis; Single species; South Pacific; Tropical; Type; Species; Registration number of species; Uniform resource locator/link to reference; Identification; Treatment; Colony number/ID; Individuals; Change; Replicate; Number; Photosynthetic efficiency; Proportion; Temperature, water; Temperature, water, standard error; Salinity; Salinity, standard error; pH; pH, standard error; Alkalinity, total; Alkalinity, total, standard error; Partial pressure of carbon dioxide water at sea surface temperature wet air; Aragonite saturation state; Carbon, inorganic, dissolved; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Calcite saturation state; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.943216; https://doi.pangaea.de/10.1594/PANGAEA.943216

Responses of corals to seawater acidification have been extensively studied. Sensitivity varies widely between species, highlighting the need to avoid extrapolation from one to another to get an accurate understanding of coral community responses. We tested the responses of seven coral species (Acropora cytherea, Acropora hyacinthus, Acropora pulchra, Leptastrea pruinosa, Montipora grisea, Pavona cactus, Pocillopora verrucosa) from the Mo'orea lagoon to a 48-day exposure to three pH scenarios (pH 7.95, 7.7 and 7.3). Tissue necrosis, mortality, growth rates, photophysiological performances and colour index were recorded. Few significant differences were noted between pH 7.95 and 7.7, but species-specific responses were observed at pH 7.3. While our data do not allow identification of the mechanisms behind this diversity in response between species inhabiting the same environment, it can exclude several hypotheses such as local adaptation, skeletal type, corallum morphology or calcification rate as sole ... : 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 2022-04-11. ...