Seawater carbonate chemistry and growth response of calcifying marine epibionts ...

• Main Authors: Johnson, Mildred Jessica, Hennigs, Laura Margarethe, Sawall, Yvonne, Pansch, Christian, Wall, Marlene
• Format: Dataset
• Language: English
• Published: PANGAEA 2021
• Subjects: Animalia; Arthropoda; Balanus improvisus; Baltic Sea; Benthic animals; Benthos; Bryozoa; Coast and continental shelf; Containers and aquaria 20-1000 L or < 1 m**2; Electra pilosa; Growth/Morphology; Laboratory experiment; Other; Single species; Temperate; Temperature; Type; Species; Registration number of species; Uniform resource locator/link to reference; Experiment duration; Replicate; Treatment temperature; Treatment pH; Treatment; Position; Growth rate; Growth efficency; Growth; Size; pH; pH, standard deviation; Replicates; Salinity; Salinity, standard deviation; Carbon, inorganic, dissolved; Carbon, inorganic, dissolved, 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; Calcite saturation state; Calcite 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; Aragonite saturation state; Calculated using seacarb; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.929951; https://doi.pangaea.de/10.1594/PANGAEA.929951

In coastal marine environments, physical and biological forces can cause dynamic pH fluctuations from microscale (diffusive boundary layer [DBL]) up to ecosystem‐scale (benthic boundary layer [BBL]). In the face of ocean acidification (OA), such natural pH variations may modulate an organism's response to OA by providing temporal refugia. We investigated the effect of pH fluctuations, generated by the brown alga Fucus serratus' biological activity, on the calcifying epibionts Balanus improvisus and Electra pilosa under OA. For this, both epibionts were grown on inactive and biologically active surfaces and exposed to (1) constant pH scenarios under ambient (pH 8.1) or OA conditions (pH 7.7), or (2) oscillating pH scenarios mimicking BBL conditions at ambient (pH 7.7–8.6) or OA scenarios (pH 7.4–8.2). Furthermore, all treatment combinations were tested at 10°C and 15°C. Against our expectations, OA treatments did not affect epibiont growth under constant or fluctuating (BBL) pH conditions, indicating rather ... : 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 2021-03-30. ...