<?xml version="1.0" encoding="UTF-8"?><resource xsi:schemaLocation="http://datacite.org/schema/kernel-4 http://schema.datacite.org/meta/kernel-4.3/metadata.xsd" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://datacite.org/schema/kernel-4"><identifier identifierType="DOI">10.1594/PANGAEA.992922</identifier><creators><creator><creatorName>Anderson, Sean R</creatorName><givenName>Sean R</givenName><familyName>Anderson</familyName><affiliation>University of New Hampshire</affiliation><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/03zbnzt98">Woods Hole Oceanographic Institution</affiliation></creator><creator><creatorName>Silliman, Katherine</creatorName><givenName>Katherine</givenName><familyName>Silliman</familyName><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/02z5nhe81">National Oceanic and Atmospheric Administration</affiliation><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/0432jq872">Mississippi State University</affiliation></creator><creator><creatorName>Barbero, Leticia</creatorName><givenName>Leticia</givenName><familyName>Barbero</familyName><nameIdentifier schemeURI="http://orcid.org/" nameIdentifierScheme="ORCID">0000-0002-8858-5247</nameIdentifier><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/02z5nhe81">National Oceanic and Atmospheric Administration</affiliation><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/02dgjyy92">University of Miami</affiliation></creator><creator><creatorName>Gomez, Fabian A</creatorName><givenName>Fabian A</givenName><familyName>Gomez</familyName><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/0432jq872">Mississippi State University</affiliation><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/02z5nhe81">National Oceanic and Atmospheric Administration</affiliation></creator><creator><creatorName>Stauffer, Beth A</creatorName><givenName>Beth A</givenName><familyName>Stauffer</familyName><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/01x8rc503">University of Louisiana at Lafayette</affiliation></creator><creator><creatorName>Schnetzer, Astrid</creatorName><givenName>Astrid</givenName><familyName>Schnetzer</familyName><nameIdentifier schemeURI="http://orcid.org/" nameIdentifierScheme="ORCID">0000-0003-2063-0635</nameIdentifier><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/04tj63d06">North Carolina State University</affiliation></creator><creator><creatorName>Kelble, Christopher R</creatorName><givenName>Christopher R</givenName><familyName>Kelble</familyName><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/02z5nhe81">National Oceanic and Atmospheric Administration</affiliation></creator><creator><creatorName>Thompson, Luke R</creatorName><givenName>Luke R</givenName><familyName>Thompson</familyName><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/02z5nhe81">National Oceanic and Atmospheric Administration</affiliation><affiliation affiliationIdentifierScheme="ROR" affiliationIdentifier="https://ror.org/0432jq872">Mississippi State University</affiliation></creator></creators><titles><title>Seawater carbonate chemistry and microbial community dynamics over large spatial and environmental gradients in a subtropical ocean basin</title></titles><publisher>PANGAEA</publisher><publicationYear>2026</publicationYear><subjects><subject>Coast and continental shelf</subject><subject>Community composition and diversity</subject><subject>Entire community</subject><subject>Field observation</subject><subject>North Atlantic</subject><subject>Open ocean</subject><subject>Pelagos</subject><subject>Temperate</subject><subject>Tropical</subject><subject subjectScheme="Parameter">Type of study</subject><subject subjectScheme="Parameter">Sample code/label</subject><subject subjectScheme="Parameter">Group</subject><subject subjectScheme="Parameter">Replicate</subject><subject subjectScheme="Parameter">Station label</subject><subject subjectScheme="Parameter">Subregion</subject><subject subjectScheme="Parameter">LATITUDE</subject><subject subjectScheme="Parameter">LONGITUDE</subject><subject subjectScheme="Parameter">DEPTH, water</subject><subject subjectScheme="Parameter">Water depth description</subject><subject subjectScheme="Parameter">Water volume, filtered</subject><subject subjectScheme="Parameter">Salinity</subject><subject subjectScheme="Parameter">Temperature, water</subject><subject subjectScheme="Parameter">Oxygen</subject><subject subjectScheme="Parameter">Phosphate</subject><subject subjectScheme="Parameter">Silicate</subject><subject subjectScheme="Parameter">Nitrate</subject><subject subjectScheme="Parameter">Nitrite</subject><subject subjectScheme="Parameter">Ammonium</subject><subject subjectScheme="Parameter">Carbon, inorganic, dissolved</subject><subject subjectScheme="Parameter">Alkalinity, total</subject><subject subjectScheme="Parameter">Carbonate ion</subject><subject subjectScheme="Parameter">Aragonite saturation state</subject><subject subjectScheme="Parameter">pH, total scale</subject><subject subjectScheme="Parameter">Partial pressure of carbon dioxide (water) at sea surface temperature (wet air)</subject><subject subjectScheme="Parameter">Deoxyribonucleic acid</subject><subject subjectScheme="Parameter">Fluorescence</subject><subject subjectScheme="Parameter">Ratio</subject><subject subjectScheme="Parameter">Comment</subject><subject subjectScheme="Parameter">Carbonate system computation flag</subject><subject subjectScheme="Parameter">Carbon dioxide</subject><subject subjectScheme="Parameter">Fugacity of carbon dioxide (water) at sea surface temperature (wet air)</subject><subject subjectScheme="Parameter">Bicarbonate ion</subject><subject subjectScheme="Parameter">Calcite saturation state</subject><subject subjectScheme="Method">Calculated using seacarb after Nisumaa et al. (2010)</subject><subject subjectScheme="Project">Ocean Acidification International Coordination Centre (OA-ICC)</subject></subjects><contributors><contributor contributorType="DataCollector"><contributorName>Yang, Yan</contributorName><givenName>Yan</givenName><familyName>Yang</familyName><nameIdentifier schemeURI="http://orcid.org/" nameIdentifierScheme="ORCID">0000-0003-4900-5606</nameIdentifier></contributor></contributors><resourceType resourceTypeGeneral="Dataset">Dataset</resourceType><relatedIdentifiers><relatedIdentifier relatedIdentifierType="DOI" relationType="References">10.1128/aem.01889-25</relatedIdentifier><relatedIdentifier relatedIdentifierType="DOI" relationType="References">10.5194/essd-2-167-2010</relatedIdentifier><relatedIdentifier relatedIdentifierType="DOI" relationType="References">10.5194/essd-16-3771-2024</relatedIdentifier><relatedIdentifier relatedIdentifierType="DOI" relationType="References">10.5194/essd-8-79-2016</relatedIdentifier><relatedIdentifier relatedIdentifierType="URL" relationType="References">https://cran.r-project.org/web/packages/seacarb/index.html</relatedIdentifier><relatedIdentifier relatedIdentifierType="URL" relationType="IsDocumentedBy">https://zenodo.org/records/13102580</relatedIdentifier><relatedIdentifier relatedIdentifierType="DOI" relationType="IsDocumentedBy">10.25921/4TWF-PP50</relatedIdentifier><relatedIdentifier relatedIdentifierType="DOI" relationType="IsDocumentedBy">10.15468/SM6FPZ</relatedIdentifier></relatedIdentifiers><sizes><size>18138 data points</size></sizes><formats><format>text/tab-separated-values</format></formats><rightsList><rights rightsURI="https://creativecommons.org/licenses/by/4.0/" schemeURI="https://spdx.org/licenses/" rightsIdentifierScheme="SPDX" rightsIdentifier="CC-BY-4.0">Creative Commons Attribution 4.0 International</rights></rightsList><descriptions><description descriptionType="Abstract">Microbes are fundamental to ocean ecosystem function, yet they remain understudied across broad spatial and environmental scales in dynamic regions like the Gulf of America/Gulf of Mexico (GOM). We employed DNA metabarcoding to characterize prokaryotes (16S V4–V5) and protists (18S V9) across 51 stations, spanning 16 inshore–offshore transects and three depths. <br/>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 2026-03-11.</description></descriptions><geoLocations><geoLocation><geoLocationBox><westBoundLongitude>79.618</westBoundLongitude><eastBoundLongitude>97.639</eastBoundLongitude><southBoundLatitude>18.836</southBoundLatitude><northBoundLatitude>30.111</northBoundLatitude></geoLocationBox></geoLocation></geoLocations></resource>