Seawater carbonate chemistry and seasonal variations of Fucus vesiculosus fertility in the western Baltic Sea ...

• Main Authors: Graiff, Angelika, Dankworth, Marie, Wahl, Martin, Karsten, Ulf, Bartsch, Inka
• Format: Dataset
• Language: English
• Published: PANGAEA 2023
• Subjects: Benthos; Chromista; Coast and continental shelf; Fucus vesiculosus; Laboratory experiment; Macroalgae; Mesocosm or benthocosm; North Atlantic; Ochrophyta; Reproduction; FOS Medical biotechnology; Single species; Temperate; Temperature; Event label; Type of study; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Experiment; Sample code/label; Treatment; DATE/TIME; Maturation stage; Counts; Proportion; Reproductive allocation ratio; Temperature, water; Temperature, water, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Carbon, inorganic, dissolved; Salinity; Salinity, standard deviation; Carbonate system computation flag; pH; Carbon dioxide; Fugacity of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide water at sea surface temperature wet air; Bicarbonate ion; Carbonate ion; Aragonite saturation state; Calcite saturation state; Mesocosm experiment; 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.958968; https://doi.pangaea.de/10.1594/PANGAEA.958968

Ocean warming and acidification may substantially affect the reproduction of keystone species such as Fucus vesiculosus (Phaeophyceae). In four consecutive benthic mesocosm experiments, we compared the reproductive biology and quantified the temporal development of Baltic Sea Fucus fertility under the single and combined impact of elevated seawater temperature and pCO2 (1100 ppm). In an additional experiment, we investigated the impact of temperature (0–25°C) on the maturation of North Sea F. vesiculosus receptacles. A marked seasonal reproductive cycle of F. vesiculosus became apparent in the course of 1 year. The first appearance of receptacles on vegetative apices and the further development of immature receptacles of F. vesiculosus in autumn were unaffected by warming or elevated pCO2. During winter, elevated pCO2 in both ambient and warmed temperatures increased the proportion of mature receptacles significantly. In spring, warming and, to a lesser extent, elevated pCO2 accelerated the maturation of ... : In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2022) 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 2023-05-15. ...