Seawater carbonate chemistry and the growth rate of marine diatom Skeletonema marinoi ...

• Main Authors: Scheinin, Matias, Riebesell, Ulf, Rynearson, T A, Lohbeck, Kai T, Collins, Sinéad
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: Bottles or small containers/Aquaria <20 L; Chromista; Coast and continental shelf; Growth/Morphology; Laboratory experiment; North Atlantic; Ochrophyta; Other studied parameter or process; Pelagos; Phytoplankton; Single species; Skeletonema marinoi; Temperate; Type; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Block; Treatment partial pressure of carbon dioxide; Mesocosm label; Identification; Time in hours; Salinity; Temperature, water; Carbon, inorganic, dissolved; pH; Partial pressure of carbon dioxide water at sea surface temperature wet air; Phosphate; Silicate; Carbonate system computation flag; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Alkalinity, total; Aragonite saturation state; Calcite saturation state; Biological sample; Calculated using seacarb after Nisumaa et al. 2010; Ocean Acidification International Coordination Centre OA-ICC; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.956080; https://doi.pangaea.de/10.1594/PANGAEA.956080

Because of their large population sizes and rapid cell division rates, marine microbes have, or can generate, ample variation to fuel evolution over a few weeks or months, and subsequently have the potential to evolve in response to global change. Here we measure evolution in the marine diatom Skeletonema marinoi evolved in a natural plankton community in CO2-enriched mesocosms deployed in situ. Mesocosm enclosures are typically used to study how the species composition and biogeochemistry of marine communities respond to environmental shifts, but have not been used for experimental evolution to date. Using this approach, we detect a large evolutionary response to CO2 enrichment in a focal marine diatom, where population growth rate increased by 1.3-fold in high CO2-evolved lineages. This study opens an exciting new possibility of carrying out in situ evolution experiments to understand how marine microbial communities evolve in response to environmental change. ... : 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 2023-02-28. ...