Seawater carbonate chemistry and test density, trace elements ratios of Peneroplis spp. ...

• Main Authors: Charrieau, Laurie M, Nagai, Yukiko, Kimoto, Katsunori, Below, Beatrice, Fujita, Kazuhiko, Toyofuku, Takashi
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: Benthos; Biomass/Abundance/Elemental composition; Bottles or small containers/Aquaria <20 L; Calcification/Dissolution; Chromista; Coast and continental shelf; Foraminifera; Heterotrophic prokaryotes; Laboratory experiment; North Pacific; Peneroplis sp.; Single species; Temperate; Type; Species; Experiment; Experiment day; Treatment pH; Replicate; Density; Treatment; Identification; Boron/Calcium ratio; Boron/Calcium ratio, standard deviation; Zinc/Calcium ratio; Zinc/Calcium ratio, standard deviation; Magnesium/Calcium ratio; Magnesium/Calcium ratio, standard deviation; Strontium/Calcium ratio; Strontium/Calcium ratio, standard deviation; Manganese/Calcium ratio; Manganese/Calcium ratio, standard deviation; Temperature, water; Salinity; Salinity, standard deviation; pH; pH, standard deviation; Alkalinity, total; Alkalinity, total, standard deviation; Calcite saturation state; Carbonate ion; Calcium; Carbonate system computation flag; Carbon dioxide; Carbon dioxide, standard deviation; Fugacity of carbon dioxide water at sea surface temperature wet air; Fugacity of carbon dioxide in seawater, standard deviation; Partial pressure of carbon dioxide water at sea surface temperature wet air; Partial pressure of carbon dioxide, standard deviation; Bicarbonate ion; Ocean acidification
• Online Access: https://dx.doi.org/10.1594/pangaea.947963; https://doi.pangaea.de/10.1594/PANGAEA.947963

Large Benthic Foraminifera are a crucial component of coral-reef ecosystems, which are currently threatened by ocean acidification. We conducted culture experiments to evaluate the impact of low pH on survival and test dissolution of the symbiont-bearing species Peneroplis spp., and to observe potential calcification recovery when specimens are placed back under reference pH value (7.9). We found that Peneroplis spp. displayed living activity up to 3 days at pH 6.9 (Omega cal < 1) or up to 1 month at pH 7.4 (Omega cal > 1), despite the dark and unfed conditions. Dissolution features were observed under low Omega cal values, such as changes in test density, peeled extrados layers, and decalcified tests with exposed organic linings. A new calcification phase started when specimens were placed back at reference pH. This calcification's resumption was an addition of new chambers without reparation of the dissolved parts, which is consistent with the porcelaneous calcification pathway of Peneroplis spp. The ... : 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 2022-09-06. ...