PANGAEA_974439 Seawater carbonate chemistry and morphology and nutrient physiology of the cosmopolitan marine diatom Thalassiosira rotula Wyatt, Shea N; McNabb, Brandon J; Varela, Diana E Seawater carbonate chemistry and morphology and nutrient physiology of the cosmopolitan marine diatom Thalassiosira rotula 2025-01-09 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.974439 Investigator Diana E Varela dvarela@sfu.ca Investigator Yan Yang yangyan@xmu.edu.cn Earth Science Type of study Species, unique identification Species, unique identification (URI) Species, unique identification (Semantic URI) Sample ID Treatment: partial pressure of carbon dioxide pH, total scale Growth rate Cell density Cell, length Cell, diameter Cell surface area Cell biovolume Cell surface area/cell volume ratio Chlorophyll a Carbon, organic, particulate Nitrogen, organic, particulate Biogenic silica Carbon/Nitrogen ratio Silicon/Carbon, molar ratio Silicon/Nitrogen, molar ratio Carbon, organic, particulate/Chlorophyll a ratio Carbon utilization rate Nitrate utilization rate Silicon utilization rate Carbon utilization/nitrate utilization ratio Silicon utilization/carbon utilization ratio Silicon utilization/nitrate utilization, ratio Chlorophyll a Carbon, organic, particulate Nitrogen, organic, particulate Biogenic silica quota, per volume Biogenic silica per surface area Carbon utilization rate, per volume Nitrate utilization rate, per volume Silicon utilization rate, per volume Chlorophyll a per cell Carbon, organic, particulate, per cell Nitrogen, organic, particulate, per cell Biogenic silica, per cell Carbon utilization rate, per cell Nitrate utilization rate, per cell Silicon utilization rate, per cell Chlorophyll a, per mass carbon Carbon, organic, particulate, per mass carbon Nitrogen, organic, particulate, per mass carbon Biogenic silica quota, per mass carbon Carbon utilization rate, per mass carbon Nitrate utilization rate, per mass carbon Silicon utilization rate, per mass carbon Temperature, water Salinity Phosphate Silicate pH, standard deviation Carbon, inorganic, dissolved Alkalinity, total Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Carbonate system computation flag Carbon dioxide Fugacity of carbon dioxide (water) at sea surface temperature (wet air) Bicarbonate ion Carbonate ion Aragonite saturation state Calcite saturation state geoscientificInformation Biomass/Abundance/Elemental composition Bottles or small containers/Aquaria (<20 L) Chromista Growth/Morphology Heterokontophyta Laboratory experiment Laboratory strains Not applicable Ocean acidification Other metabolic rates Pelagos Phytoplankton Primary production/Photosynthesis Single species Thalassiosira rotula Potentiometric Calculated using CO2SYS Complete OA-ICC Ocean Acidification International Coordination Centre unrestricted CC-BY-4.0: Creative Commons Attribution 4.0 International English PANGAEA Data Publisher for Earth & Environmental Science https://www.pangaea.de/ Data Center Contact Michael Diepenbroek info@pangaea.de

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Bremen Bremen 28359 Germany online 403 data points text/tab-separated-values Wyatt, Shea N; McNabb, Brandon J; Varela, Diana E (2024): Morphological and physiological responses of the cosmopolitan marine diatom Thalassiosira rotula to acidification. Diatom Research, 39(2), 61-74, https://doi.org/10.1080/0269249X.2024.2369049 Wyatt, Shea N; McNabb, Brandon J; Varela, Diana E (2024): Morphological and physiological responses of the cosmopolitan marine diatom Thalassiosira rotula to acidification [dataset]. Borealis, https://doi.org/10.5683/SP3/IUEQIN Nisumaa, Anne-Marin; Pesant, Stephane; Bellerby, Richard G J; Delille, Bruno; Middelburg, Jack J; Orr, James C; Riebesell, Ulf; Tyrrell, Toby; Wolf-Gladrow, Dieter A; Gattuso, Jean-Pierre (2010): EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification. Earth System Science Data, 2(2), 167-175, https://doi.org/10.5194/essd-2-167-2010 Yang, Yan; Brockmann, Patrick; Galdino, Carolina; Schindler, Uwe; Gazeau, Frédéric (2024): An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal. Earth System Science Data, 16(8), 3771-3780, https://doi.org/10.5194/essd-16-3771-2024 Yang, Yan; Hansson, L; Gattuso, Jean-Pierre (2016): Data compilation on the biological response to ocean acidification: an update. Earth System Science Data, 8(1), 79-87, https://doi.org/10.5194/essd-8-79-2016 Gattuso, Jean-Pierre; Epitalon, Jean-Marie; Lavigne, Héloïse; Orr, James; Gentili, Bernard; Hagens, Mathilde; Hofmann, Andreas; Mueller, Jens-Daniel; Proye, Aurélien; Rae, James; Soetaert, Karline (2024): seacarb: seawater carbonate chemistry with R. R package version 3.3.3. https://cran.r-project.org/web/packages/seacarb/index.html

We investigated the effect of decreased pH on the morphology and nutrient physiology of the cosmopolitan marine diatom Thalassiosira rotula (CCMP3362) by acclimating unialgal cultures to two different CO2 gas concentrations under optimal light, temperature and nutrient conditions. This dataset is included in the OA-ICC data compilation maintained in the framework of the IAEA Ocean Acidification International Coordination Centre (see https://oa-icc.ipsl.fr). Original data were downloaded from UVic Research Data Collection (see Source) by the OA-ICC data curator. In order to allow full comparability with other ocean acidification data sets, the R package seacarb (Gattuso et al, 2024) 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 2025-01-08. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.974439"!

http://mel.xmu.edu.cn/en/ https://cran.r-project.org/web/packages/seacarb/index.html seacarb: seawater carbonate chemistry with R. R package version 3.3.3 https://doi.org/10.1080/0269249X.2024.2369049 Morphological and physiological responses of the cosmopolitan marine diatom Thalassiosira rotula to acidification https://doi.org/10.5194/essd-16-3771-2024 An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal https://doi.org/10.5194/essd-2-167-2010 EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification https://doi.org/10.5194/essd-8-79-2016 Data compilation on the biological response to ocean acidification: an update https://doi.org/10.5683/SP3/IUEQIN Morphological and physiological responses of the cosmopolitan marine diatom Thalassiosira rotula to acidification https://hdl.handle.net/10013/epic.32187.d001 Chlorophyll a https://www.iaea.org/services/oa-icc/science-and-collaboration/data-access-and-management OA-ICC DIF 9.4 2025-01-09 2026-05-19