Physiological plasticity and local adaptation to elevated pCO2 in calcareous algae: an ontogenetic and geographic approach

• Main Authors: Padilla-Gamiño, Jacqueline L, Gaitán-Espitia, Juan Diego, Kelly, Morgan W, Hofmann, Gretchen E
• Format: Dataset
• Language: English
• Published: PANGAEA - Data Publisher for Earth & Environmental Science 2016
• Subjects: Benthos; Bottles or small containers/Aquaria <20 L; Coast and continental shelf; Corallina vancouveriensis Yendo; Growth/Morphology; Laboratory experiment; Macroalgae; Mortality/Survival; North Pacific; Plantae; Primary production/Photosynthesis; Respiration; Rhodophyta; Single species; Temperate; Event label; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment duration; Treatment; Time in days; Area/locality; Site; Sample ID; Light mode; Net photosynthesis rate, oxygen; Respiration rate, oxygen; Gross photosynthesis rate, oxygen; Chlorophyll a; Phycoerythrin; Phycocyanin; Carotenoids; Growth rate; Identification; Growth; Mortality; Partial pressure of carbon dioxide water at sea surface temperature wet air; pH; Temperature, water; Salinity; Alkalinity, total; Calcite saturation state; Aragonite saturation state; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Carbon, inorganic, dissolved; Experiment; Spectrophotometric; Potentiometric; Calculated using CO2calc; 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.874861; https://doi.pangaea.de/10.1594/PANGAEA.874861

To project how ocean acidification will impact biological communities in the future, it is critical to understand the potential for local adaptation and the physiological plasticity of marine organisms throughout their entire life cycle, as some stages may be more vulnerable than others. Coralline algae are ecosystem engineers that play significant functional roles in oceans worldwide and are considered vulnerable to ocean acidification. Using different stages of coralline algae, we tested the hypothesis that populations living in environments with higher environmental variability and exposed to higher levels of pCO2 would be less affected by high pCO2 than populations from a more stable environment experiencing lower levels of pCO2. Our results show that spores are less sensitive to elevated pCO2 than adults. Spore growth and mortality were not affected by pCO2 level; however, elevated pCO2 negatively impacted the physiology and growth rates of adults, with stronger effects in populations that experienced both lower levels of pCO2 and lower variability in carbonate chemistry, suggesting local adaptation. Differences in physiological plasticity and the potential for adaptation could have important implications for the ecological and evolutionary responses of coralline algae to future environmental changes. : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2016) 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 2017-04-26.