Biogeosciences
Biogeosciences
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Articles | Volume 23, issue 12
Articles | Volume 23, issue 12
https://doi.org/10.5194/bg-23-4187-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-4187-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 23, issue 12
Research article
 | 
25 Jun 2026
Research article |  | 25 Jun 2026

Experimental assessment of benthic foraminifera as salinity bioindicators: Integrating morphological and eDNA approaches

Yifei Cao, Wenlong Fa, and Yanli Lei

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Short summary
Tiny marine organisms called foraminifera help track ocean health. We grew them in varying salt levels and analyzed them using microscopes and genetic tools. While traditional methods saw shells decline, genetics revealed a hidden group of soft-bodied types thriving under stress. We also created a model to estimate salinity based on these populations. This proves that combining old and new methods offers a sharper lens for monitoring coastal ecosystems and Earth's history.
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