Seawater carbonate chemistry and competition for growth, photosynthetic performance and biochemical composition in Neopyropia yezoensis and Ulva prolifera ...

• Main Authors: Sun, Jingyi, Bao, Menglin, Xu, Tianpeng, Li, Futian, Wu, Hailong, Li, Xinshu, Xu, Juntian
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Benthos; Bottles or small containers/Aquaria <20 L; Chlorophyta; Coast and continental shelf; Growth/Morphology; Laboratory experiment; Macroalgae; Neopyropia yezoensis; North Pacific; Other studied parameter or process; Plantae; Primary production/Photosynthesis; Rhodophyta; Single species; Species interaction; Temperate; Ulva prolifera; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment; Treatment; Growth rate; Growth rate, standard deviation; Irradiance; Net photosynthesis rate, oxygen; Net photosynthesis rate, standard deviation; Local Time; Quantum yield efficiency of photosystem II; Quantum yield efficiency of photosystem II, standard deviation; Electron transport rate, relative; Electron transport rate, relative, standard deviation; Chlorophyll a; Chlorophyll a, standard deviation; Carotenoids; Carotenoids, standard deviation; Proteins, soluble; Proteins, soluble, standard deviation; Carbohydrates, soluble; Carbohydrates, soluble, standard deviation; Salinity; Phosphate; Silicate; Temperature, water; pH; pH, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Carbon, inorganic, dissolved; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.941474; https://doi.pangaea.de/10.1594/PANGAEA.941474

The occurrence of various marine macroalgae in the same niche will inevitably lead to interspecific competition due to similar environmental requirements. With the increasing global atmospheric CO2 concentration, the resulting ocean acidification can potentially influence competition among macroalgae in the future. Neopyropia yezoensis (Rhodophyta, formerly Pyropia yezoensis) and the epiphytic alga Ulva prolifera (Chlorophyta) were selected for investigating competition among macroalgae grown under different CO2 conditions. The results showed that when cultured with U. prolifera, N. yezoensis' growth rate was significantly inhibited along with a sharp decrease in net photosynthetic rate. Although CO2 decreased the growth rate of N. yezoensis, it enhanced the resistance of the alga to the allelopathic effect of U. prolifera. While no difference was found between U. prolifera grown in monoculture and biculture, strong competitive ability was observed. CO2 could enhance this ability with higher net ... : 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 2022-2-24. ...