Seawater carbonate chemistry and photochemical efficiency and symbiont density of reef coral Pocillopora damicornis ...

• Main Authors: Jiang, Lei, Sun, You-Fan, Zhang, Yuyang, Tian, Yuan, Lei, Xinming, Zhou, Guowei, Yuan, Tao, Yuan, Xiangcheng, Liu, S, Huang, Hui
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Animalia; Bottles or small containers/Aquaria <20 L; Cnidaria; Coast and continental shelf; Laboratory experiment; Mortality/Survival; North Pacific; Other studied parameter or process; Pelagos; Pocillopora damicornis; Primary production/Photosynthesis; Respiration; Single species; Temperature; Tropical; Zooplankton; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment duration; Treatment; Respiration rate, oxygen, per individual; Net photosynthesis rate, oxygen, per individual; Gross photosynthesis rate, oxygen, per individual; Ratio; Symbiont cell density per larvae; Photochemical efficiency; Malondialdehyde, per protein mass; Survival; Temperature, water; Temperature, water, standard deviation; Salinity; Salinity, standard deviation; pH; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Aragonite saturation state; Aragonite saturation state, standard deviation; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Calcite saturation state; Experiment; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.941570; https://doi.pangaea.de/10.1594/PANGAEA.941570

Establishing the thermal reaction norm of coral larvae under elevated pCO2 is crucial to anticipate how larval dispersal and population maintenance may be affected by future climate change. Here, we characterized the functional relationship between temperature (27−33 °C) and larval performance of the reef coral Pocillopora damicornis under two pCO2 levels. The results showed that the temperature threshold of larvae was between 32 and 33 °C, as evidenced by the abrupt declines in photochemical efficiency and symbiont density, whereas no oxidative damage was observed between 27 and 33 °C and elevated pCO2 did not influence any of these parameters. In addition, larval respiration and photosynthesis rates exhibited parabolic responses to temperature, and this relationship conformed to the Gaussian–Gompertz model with an optimal temperature around 31.5 °C, which was approximately 2.5 °C above the summer mean temperature, suggesting the potential for thermal acclimation. Most importantly, elevated pCO2 ... : 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 2022-3-1. ...