Biogeosciences
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Articles | Volume 23, issue 5
Articles | Volume 23, issue 5
https://doi.org/10.5194/bg-23-1859-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-1859-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 5
Research article
 | 
11 Mar 2026
Research article |  | 11 Mar 2026

On the role of light and vertical mixing in shaping Southwestern Atlantic shelf blooms

Ana I. Dogliotti, Reinaldo A. Maenza, Moira Luz Clara, Vivian A. Lutz, and Robert Frouin

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Short summary
We analyzed 22 years of satellite and modeled data to study how light and mixing shape phytoplankton blooms on the Argentine Continental Shelf. Blooms start earlier on the central shelf and coast, and later on the deeper, colder Patagonian Shelf. Bloom intensity is highest in nutrient-rich, well-lit waters. Light penetration and mixing are key drivers, but local ocean features also influence bloom patterns. These findings improve our ability to predict ocean productivity and ecosystem behavior.
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