Patterns and driving mechanism of global marine phytoplankton blooms

Patterns and driving mechanism of global marine phytoplankton blooms | 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 Article Patterns and driving mechanism of global marine phytoplankton blooms Jian-rong Ma, Wei Hu, Hans Paerl, Erik Jeppesen, Justin Brookes, and 2 more This is a preprint; it has not been peer reviewed by a journal. https://doi.org/ 10.21203/rs.3.rs-5065614/v1 This work is licensed under a CC BY 4.0 License Status: Posted Version 1 posted You are reading this latest preprint version Abstract Marine phytoplankton blooms have negatively affected environmental and human health, and economic welfare by producing toxins, creating hypoxia, harming fisheries, and disrupting food webs. By integrating and analyzing data from multiple databases, we found that the area of phytoplankton blooms in the Northern Hemisphere exceeds that in the Southern Hemisphere and the seasonal pattern differed between hemispheres. In the Northern Hemisphere, a bimodal pattern driven by interactive effects of human activities and natural factors has led to bloom outbreaks, dominated by a diatoms and dinoflagellates. In contrast, in the Southern Hemisphere, where human activity is comparatively low, phytoplankton blooms are primarily driven by natural factors and dominated by dinoflagellates. Through statistical analysis of geoscientific models, we determined the explanatory power of single-factor effects and the coupled effects of every two factors, which quantitatively reveals the driving mechanism of global marine phytoplankton blooms. Our findings provide a global perspective for a deeper understanding of the formation and driving processes of algal blooms in the context of global climate change and intensified human activities, which can provide guidance for global marine algal bloom prediction, early warning and management. Biological sciences/Ecology/Biooceanography/Microbial biooceanography Earth and environmental sciences/Ocean sciences/Marine biology Full Text Additional Declarations There is NO Competing Interest. Supplementary Files ExtendedData.pdf Extended Data for Patterns and driving mechanism of global marine phytoplankton blooms SupplementaryInformation.pdf Supplementary Information for Patterns and driving mechanism of global marine phytoplankton blooms SupplementaryInformation.pdf NCOMMS2459902Tnrreportingsummary1.pdf Reporting Summary Cite Share Download PDF Status: Posted Version 1 posted 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. As a division of Research Square Company, we’re committed to making research communication faster, fairer, and more useful. We do this by developing innovative software and high quality services for the global research community. Our growing team is made up of researchers and industry professionals working together to solve the most critical problems facing scientific publishing. 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-5065614","acceptedTermsAndConditions":true,"allowDirectSubmit":true,"archivedVersions":[],"articleType":"Article","associatedPublications":[],"authors":[{"id":380116573,"identity":"dde79ecd-b308-426e-9184-6545783292a8","order_by":0,"name":"Jian-rong 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