<?xml version="1.0" encoding="UTF-8"?><!--*** Generated from internal PANGAEA metadata schema by dif.xslt ***--><DIF xsi:schemaLocation="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/ http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/dif_v9.4.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://gcmd.gsfc.nasa.gov/Aboutus/xml/dif/">
<Entry_ID>PANGAEA_974367</Entry_ID>
<Entry_Title>Seawater carbonate chemistry and larva size, elemental composition of Pacific razor clams (Siliqua patula) in Alaska</Entry_Title>
<Data_Set_Citation>
<Dataset_Creator>Alcantar, Marina W; Hetrick, Jeff; Ramsay, Jacqueline; Kelley, Amanda L</Dataset_Creator>
<Dataset_Title>Seawater carbonate chemistry and larva size, elemental composition of Pacific razor clams (Siliqua patula) in Alaska</Dataset_Title>
<Dataset_Release_Date>2025-01-03</Dataset_Release_Date>
<Dataset_Publisher>PANGAEA</Dataset_Publisher>
<Data_Presentation_Form>Dataset</Data_Presentation_Form>
<Online_Resource>https://doi.pangaea.de/10.1594/PANGAEA.974367</Online_Resource>
</Data_Set_Citation>
<Personnel>
<Role>Investigator</Role>
<First_Name>Marina W</First_Name>
<Last_Name>Alcantar</Last_Name>
<Email>mwalcantar@alaska.edu</Email>
</Personnel>
<Personnel>
<Role>Investigator</Role>
<First_Name>Yan</First_Name>
<Last_Name>Yang</Last_Name>
<Email>yangyan@xmu.edu.cn</Email>
</Personnel>
<Discipline>
<Discipline_Name>Earth Science</Discipline_Name>
</Discipline>
<Parameters>
<Detailed_Variable>Type of study</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Species, unique identification</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Species, unique identification (URI)</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Species, unique identification (Semantic URI)</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Time in days</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Treatment</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Area</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Area, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Length</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Length, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Width</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Width, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Number of samples</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Elements</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Location</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Percentage</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Percentage, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Percentage, standard error</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Salinity</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Salinity, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>pH, total scale</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>pH, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Partial pressure of carbon dioxide, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aragonite saturation state</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Aragonite saturation state, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Alkalinity, total</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Alkalinity, total, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Temperature, water</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Temperature, water, standard deviation</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Carbonate system computation flag</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Carbon dioxide</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Fugacity of carbon dioxide (water) at sea surface temperature (wet air)</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Bicarbonate ion</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Carbonate ion</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Carbon, inorganic, dissolved</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Alkalinity, total</Detailed_Variable>
</Parameters>
<Parameters>
<Detailed_Variable>Calcite saturation state</Detailed_Variable>
</Parameters>
<ISO_Topic_Category>geoscientificInformation</ISO_Topic_Category>
<Keyword>Animalia</Keyword>
<Keyword>Biomass/Abundance/Elemental composition</Keyword>
<Keyword>Bottles or small containers/Aquaria (&lt;20 L)</Keyword>
<Keyword>Calcification/Dissolution</Keyword>
<Keyword>Coast and continental shelf</Keyword>
<Keyword>Growth/Morphology</Keyword>
<Keyword>Laboratory experiment</Keyword>
<Keyword>Mollusca</Keyword>
<Keyword>North Pacific</Keyword>
<Keyword>Ocean acidification</Keyword>
<Keyword>Pelagos</Keyword>
<Keyword>Polly_Creek_Beach</Keyword>
<Keyword>Siliqua patula</Keyword>
<Keyword>Single species</Keyword>
<Keyword>Temperate</Keyword>
<Keyword>Zooplankton</Keyword>
<Temporal_Coverage>
<Start_Date>2018-06-28</Start_Date>
<Stop_Date>2018-06-28</Stop_Date>
</Temporal_Coverage>
<Data_Set_Progress>Complete</Data_Set_Progress>
<Spatial_Coverage>
<Southernmost_Latitude>60.2819</Southernmost_Latitude>
<Northernmost_Latitude>60.2819</Northernmost_Latitude>
<Westernmost_Longitude>-152.46125</Westernmost_Longitude>
<Easternmost_Longitude>-152.46125</Easternmost_Longitude>
</Spatial_Coverage>
<Project>
<Short_Name>OA-ICC</Short_Name>
<Long_Name>Ocean Acidification International Coordination Centre</Long_Name>
</Project>
<Access_Constraints>unrestricted</Access_Constraints>
<Use_Constraints>CC-BY-4.0: Creative Commons Attribution 4.0 International</Use_Constraints>
<Data_Set_Language>English</Data_Set_Language>
<Data_Center>
<Data_Center_Name>
<Short_Name>PANGAEA</Short_Name>
<Long_Name>Data Publisher for Earth &amp; Environmental Science</Long_Name>
</Data_Center_Name>
<Data_Center_URL>https://www.pangaea.de/</Data_Center_URL>
<Personnel>
<Role>Data Center Contact</Role>
<First_Name>Michael</First_Name>
<Last_Name>Diepenbroek</Last_Name>
<Email>info@pangaea.de</Email>
<Contact_Address>
<Address>Leobener Str.</Address>
<City>Bremen</City>
<Province_or_State>Bremen</Province_or_State>
<Postal_Code>28359</Postal_Code>
<Country>Germany</Country>
</Contact_Address>
</Personnel>
</Data_Center>
<Distribution>
<Distribution_Media>online</Distribution_Media>
<Distribution_Size>3756 data points</Distribution_Size>
<Distribution_Format>text/tab-separated-values</Distribution_Format>
</Distribution>
<Reference>Alcantar, Marina W; Hetrick, Jeff; Ramsay, Jacqueline; Kelley, Amanda L (2024): Examining the impacts of elevated, variable pCO2 on larval Pacific razor clams (Siliqua patula) in Alaska. Frontiers in Marine Science, 11, 1253702, https://doi.org/10.3389/fmars.2024.1253702</Reference>
<Reference>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</Reference>
<Reference>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</Reference>
<Reference>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</Reference>
<Reference>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</Reference>
<Summary>This study examines the effects of OA on embryonic and larval Pacific razor clams (Siliqua patula), a bivalve that produces a concretion during early shell development. Larvae were spawned and cultured over 28 days under three pCO2 treatments: a static high pCO2 of 867 matm, a variable, diel pCO2 of 357 to 867 matm, and an ambient pCO2 of 357 matm.
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 extracted from tables in the related paper (see Related to) 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 2025-01-03. ** For all details see the full metadata description at "https://doi.pangaea.de/10.1594/PANGAEA.974367"!</Summary>
<Related_URL>
<URL>http://mel.xmu.edu.cn/en/</URL>
</Related_URL>
<Related_URL>
<URL>https://cran.r-project.org/web/packages/seacarb/index.html</URL>
<Description>seacarb: seawater carbonate chemistry with R. R package version 3.3.3</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.3389/fmars.2024.1253702</URL>
<Description>Examining the impacts of elevated, variable pCO2 on larval Pacific razor clams (Siliqua patula) in Alaska</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5194/essd-16-3771-2024</URL>
<Description>An update of data compilation on the biological response to ocean acidification and overview of the OA-ICC data portal</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5194/essd-2-167-2010</URL>
<Description>EPOCA/EUR-OCEANS data compilation on the biological and biogeochemical responses to ocean acidification</Description>
</Related_URL>
<Related_URL>
<URL>https://doi.org/10.5194/essd-8-79-2016</URL>
<Description>Data compilation on the biological response to ocean acidification: an update</Description>
</Related_URL>
<Related_URL>
<URL>https://en.wikipedia.org/wiki/Alkalinity</URL>
<Description>Alkalinity, total</Description>
</Related_URL>
<Related_URL>
<URL>https://www.iaea.org/services/oa-icc/science-and-collaboration/data-access-and-management</URL>
<Description>OA-ICC</Description>
</Related_URL>
<Metadata_Name>DIF</Metadata_Name>
<Metadata_Version>9.4</Metadata_Version>
<DIF_Creation_Date>2025-01-03</DIF_Creation_Date>
<Last_DIF_Revision_Date>2026-07-15</Last_DIF_Revision_Date>
</DIF>
