PANGAEA_995632 Seawater carbonate chemistry and boron isotope ratios in marine bivalve shells Thatcher, Diana L; Stewart, Joseph A; LaVigne, M; Williams, Branwen; Whitney, Nina M; Giss, Maya; McMahon, Teagan; Jellison, Brittany M; Guay, Katherine; Franklin, Heidi; Wanamaker, Alan D Seawater carbonate chemistry and boron isotope ratios in marine bivalve shells 2026-06-22 PANGAEA Dataset https://doi.pangaea.de/10.1594/PANGAEA.995632 Investigator Diana L Thatcher thatcher@iastate.edu Investigator Yan Yang yangyan@xmu.edu.cn Earth Science Event label Type of study Sample ID Species, unique identification Species, unique identification (URI) Species, unique identification (Semantic URI) Sample comment Temperature, water pH, total scale Salinity δ11B Boron/Calcium ratio pH, difference Carbon, inorganic, dissolved Carbon, inorganic, dissolved, standard deviation Alkalinity, total Alkalinity, total, standard deviation Aragonite saturation state Aragonite saturation state, standard deviation Calcite saturation state Calcite saturation state, standard deviation 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) Partial pressure of carbon dioxide (water) at sea surface temperature (wet air) Bicarbonate ion Carbonate ion geoscientificInformation Acid-base regulation Animalia Arctica islandica Benthic animals Benthos Coast and continental shelf Jonesport Laboratory experiment Mercenaria mercenaria Mollusca Mya arenaria North Atlantic Ocean acidification Placopecten magellanicus Single species Temperate Temperature Calculated with seacarb package in R Calculated using seacarb after Nisumaa et al. (2010) 2021-09-01 2021-09-30 Complete 44.5541 44.5541 -67.2697 -67.2697 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 3101 data points text/tab-separated-values Thatcher, Diana L; Stewart, Joseph A; LaVigne, M; Williams, Branwen; Whitney, Nina M; Giss, Maya; McMahon, Teagan; Jellison, Brittany M; Guay, Katherine; Franklin, Heidi; Wanamaker, Alan D (2026): Controls on boron isotope ratios in marine bivalve shells: Insights from a controlled experiment across pH and temperature gradients. Geochimica et Cosmochimica Acta, S0016703726002619, https://doi.org/10.1016/j.gca.2026.04.035 Thatcher, Diana L; LaVigne, Michele; Wanamaker, Alan D; Williams, Branwen; Jellison, Brittany M; McMahon, Teagan; Whitney, Nina M; Stewart, Joseph A (2026): Boron isotope data from bivalves from 2022 tank experiment in the Gulf of Maine, USA [dataset]. Biological and Chemical Oceanography Data Management Office (BCO-DMO), https://www.bco-dmo.org/dataset/995690 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

A 20.5-week flowthrough tank experiment was conducted in which four species of commercially important bivalves from the northwest Atlantic Ocean were grown in tanks with controlled pHT (pH 7.4 to 8.0) and temperature conditions (6 to 12 °C). A total of 106 shell samples from 99 individuals of adult and juvenile Arctica islandica (ocean quahog), juvenile Mercenaria mercenaria (northern quahog or hard clam), juvenile Mya arenaria (soft-shell clam), and juvenile Placopecten magellanicus (Atlantic sea scallop) were analyzed from this controlled experiment to assess the seawater pH, temperature, and growth rate controls on shell δ11Bc. 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 Biological and Chemical Oceanography Data Management Office (BCO-DMO) (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 2026-06-23. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.995632"!

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/10.1016/j.gca.2026.04.035 Controls on boron isotope ratios in marine bivalve shells: Insights from a controlled experiment across pH and temperature gradients 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 Calculated using seacarb after Nisumaa et al. (2010) 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://www.bco-dmo.org/dataset/995690 Boron isotope data from bivalves from 2022 tank experiment in the Gulf of Maine, USA https://www.iaea.org/services/oa-icc/science-and-collaboration/data-access-and-management OA-ICC DIF 9.4 2026-06-22 2026-07-22