Carbonate mineralogy and geochemistry of bryozoans along the South African coast

Carbonate mineralogy and geochemistry of bryozoans along the South African coast | Research Square window.SnipcartSettings = { analytics: { enabled: false } }; (function() { var accessVector = localStorage.getItem('access_vector') || ''; window.dataLayer = window.dataLayer || []; if (accessVector) { window.dataLayer.push({ user: { profile: { profileInfo: { snid: accessVector } } } }); } })(); (function(w,d,s,l,i){w[l]=w[l]||[];w[l].push({'gtm.start':new Date().getTime(),event:'gtm.js'});var f=d.getElementsByTagName(s)[0],j=d.createElement(s),dl=l!='dataLayer'?'&l='+l:'';j.async=true;j.src='https://www.googletagmanager.com/gtm.js?id='+i+dl;f.parentNode.insertBefore(j,f);})(window,document,'script','dataLayer','GTM-K279D39R'); Browse Preprints In Review Journals COVID-19 Preprints AJE Video Bytes Research Tools Research Promotion AJE Professional Editing AJE Rubriq About Preprint Platform In Review Editorial Policies Our Team Advisory Board Help Center Sign In Submit a Preprint Cite Share Download PDF Research Article Carbonate mineralogy and geochemistry of bryozoans along the South African coast Małgorzata Krzemińska, Anna Piwoni-Piórewicz, Melissa Boonzaaier-Davids, and 5 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-4490542/v1 This work is licensed under a CC BY 4.0 License Status: Published Journal Publication published 04 Dec, 2024 Read the published version in Marine Biology → Version 1 posted 5 You are reading this latest preprint version Abstract The main aim of this study was to investigate whether environmental or biological factors predominantly influence bryozoan mineralization along the South African coast (spanning from 29.263°S; 16.87°E to 27.540°S; 32.677°E), a region known for its diverse oceanographic conditions. New data into the mineralogical (calcite vs. aragonite) and geochemical (Mg content in calcite) composition of bryozoans are provided thereby enhancing the global database and understanding of biomineralization patterns. To date, there has been a notable scarcity of data on bryozoan skeletal composition in tropical and subtropical regions, representing a significant gap in our knowledge and understanding of the impacts of climate change on marine, calcifying organisms. Our research reveals a diverse array of carbonate skeletons across nearly half of the known bryozoan species in the region, with calcitic forms dominating, followed by bimineralic and aragonite-based forms. The prevalence of aragonite-containing skeletons, particularly within the Cheilostomatida, mirrors global patterns, indicating a correlation with sea temperature gradients. Significant mineralogy and magnesium calcite variability exist within the Flustrina and Membraniporina suborders (Cheilostomatida). Despite exploring various environmental parameters such as temperature, salinity, or impact of currents (Agulhas, Benguela, or mixed), no clear correlation with mineralogical patterns emerged. Instead, the study underscores the substantial influence of biological factors (including specific chemical, biochemical, or genetic controls), on bryozoan skeletal carbonate mineralogy and geochemistry. These findings highlight the importance of comprehensive, multi-parametric analyses to unravel environmental signals in bryozoan biomineralization, contributing to a deeper understanding of the impacts of climate and local conditions on marine calcifiers. biomineralogy calcite aragonite calcifiers skeleton biomineralization marine invertebrates climate change Full Text Additional Declarations Table 1 and 2 are available in the Supplementary Files section. Supplementary Files Table1.docx Table 1. Sampling stations coordinates and environmental data (temperature, salinity [PSU], dominant current) Table2.docx Table 2. Statistically significant differences in mol%MgCO 3 indicated by Dunn-Bonferroni post-hoc test, between pair of means of (a) families and (b) suborders. Z is the value of each pairwise comparison, and p is a significance level (when p<0.05). BryoMINSouthAfrica.csv Cite Share Download PDF Status: Published Journal Publication published 04 Dec, 2024 Read the published version in Marine Biology → Version 1 posted Editorial decision: Revise and Resubmit 17 Jul, 2024 Reviewers agreed at journal 30 May, 2024 Reviewers invited by journal 30 May, 2024 Editor assigned by journal 28 May, 2024 First submitted to journal 28 May, 2024 You are reading this latest preprint version Research Square lets you share your work early, gain feedback from the community, and start making changes to your manuscript prior to peer review in a journal. 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Also discoverable on Platform About Our Team In Review Editorial Policies Advisory Board Help Center Resources Author Services Accessibility API Access RSS feed Manage Cookie Preferences © Research Square 2026 | ISSN 2693-5015 (online) Privacy Policy Terms of Service Do Not Sell My Personal Information {"props":{"pageProps":{"initialData":{"identity":"rs-4490542","acceptedTermsAndConditions":true,"allowDirectSubmit":false,"archivedVersions":[],"articleType":"Research Article","associatedPublications":[],"authors":[{"id":308507279,"identity":"08b3b734-9558-46ef-bc36-42f348eaebae","order_by":0,"name":"Małgorzata Krzemińska","email":"data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAZAAAAAyAQMAAABI0h/eAAAABlBMVEX///8AAABVwtN+AAAACXBIWXMAAA7EAAAOxAGVKw4bAAABBklEQVRIiWNgGAWjYDACHjApAWIwPkiACgK5DDLEaGE2QNbCQ0ALmMEmAWPj1aLbc/bxh485FnnyPYefVTyouCNvzsB+8cYPhjs4tZidbTcwnLlNotjgbJvZjYQzzwx3NvAUW/YwPMOt5TwbQzLvNonEDfwMZjcS2w4zbjjAkybBw3AYr5bDf4Fa5vezfysAarEHaZH8g0/L2TbGZkagloazPWYMQC2JGw6wH5PGa8uZY8yMvSCHnTlTLAH0S/KGwzzM1jIGePxyJo35w89tdYnze9I3fvxRccd2w/H2hzffVNyRw6UFHRxgYGDmMWBgMDhArA6QFgb2B1DGKBgFo2AUjAIwAACN+13T/+LFdgAAAABJRU5ErkJggg==","orcid":"https://orcid.org/0000-0001-7823-1253","institution":"Polish Academy of Sciences Institute of Oceanology: Instytut Oceanologii Polskiej Akademii Nauk","correspondingAuthor":true,"prefix":"","firstName":"Małgorzata","middleName":"","lastName":"Krzemińska","suffix":""},{"id":308507280,"identity":"9b038084-522c-4e11-a6d4-133dd7bfaf09","order_by":1,"name":"Anna Piwoni-Piórewicz","email":"","orcid":"","institution":"University of Gdańsk: Uniwersytet Gdanski","correspondingAuthor":false,"prefix":"","firstName":"Anna","middleName":"","lastName":"Piwoni-Piórewicz","suffix":""},{"id":308507281,"identity":"4a5db197-1f4f-4faf-8c17-33b3fbfd3e74","order_by":2,"name":"Melissa Boonzaaier-Davids","email":"","orcid":"","institution":"Republic of South Africa Department of Forestry Fisheries and the Environment","correspondingAuthor":false,"prefix":"","firstName":"Melissa","middleName":"","lastName":"Boonzaaier-Davids","suffix":""},{"id":308507282,"identity":"5b9060a2-1f61-4d08-982f-31a49f16076b","order_by":3,"name":"Wayne Florence","email":"","orcid":"","institution":"Iziko South African Museum","correspondingAuthor":false,"prefix":"","firstName":"Wayne","middleName":"","lastName":"Florence","suffix":""},{"id":308507283,"identity":"d8d798f5-83d8-4554-a9b8-6968ed8f7bd4","order_by":4,"name":"Andrea Waeschenbach","email":"","orcid":"","institution":"Natural History Museum","correspondingAuthor":false,"prefix":"","firstName":"Andrea","middleName":"","lastName":"Waeschenbach","suffix":""},{"id":308507284,"identity":"0c6132d8-da6b-44ad-9ad9-316cea1d4518","order_by":5,"name":"Jens Najorka","email":"","orcid":"","institution":"Natural History Museum","correspondingAuthor":false,"prefix":"","firstName":"Jens","middleName":"","lastName":"Najorka","suffix":""},{"id":308507285,"identity":"f0bacc57-1325-47ed-8850-4b9e8ecd7e7c","order_by":6,"name":"Helen Jenkins","email":"","orcid":"","institution":"Natural History Museum","correspondingAuthor":false,"prefix":"","firstName":"Helen","middleName":"","lastName":"Jenkins","suffix":""},{"id":308507286,"identity":"95761a9b-e12a-4a6c-a2a4-0877c4707dd5","order_by":7,"name":"Piotr Kuklinski","email":"","orcid":"","institution":"Polish Academy of Sciences Institute of Oceanology: Instytut Oceanologii Polskiej Akademii Nauk","correspondingAuthor":false,"prefix":"","firstName":"Piotr","middleName":"","lastName":"Kuklinski","suffix":""}],"badges":[],"createdAt":"2024-05-28 11:26:44","currentVersionCode":1,"declarations":"","doi":"10.21203/rs.3.rs-4490542/v1","doiUrl":"https://doi.org/10.21203/rs.3.rs-4490542/v1","draftVersion":[],"editorialEvents":[{"content":"https://doi.org/10.1007/s00227-024-04557-5","type":"published","date":"2024-12-04T15:57:00+00:00"}],"editorialNote":"","failedWorkflow":false,"files":[{"id":70964604,"identity":"28b95077-6157-491e-aeb4-4fd2edd4142d","added_by":"auto","created_at":"2024-12-09 16:11:13","extension":"pdf","order_by":1,"title":"","display":"","copyAsset":false,"role":"manuscript-pdf","size":1511328,"visible":true,"origin":"","legend":"","description":"","filename":"RPAMIN.pdf","url":"https://assets-eu.researchsquare.com/files/rs-4490542/v1_covered_4507c451-1adc-44a5-9fdf-d516c09e9633.pdf"},{"id":58185592,"identity":"69991dbd-79d5-42c3-93cd-dd03fe731da3","added_by":"auto","created_at":"2024-06-12 07:12:06","extension":"docx","order_by":1,"title":"","display":"","copyAsset":false,"role":"supplement","size":19722,"visible":true,"origin":"","legend":"\u003cp\u003eTable 1. 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