Journal of Micropalaeontology
Journal of Micropalaeontology
JM
Articles | Volume 44, issue 2
Articles | Volume 44, issue 2
https://doi.org/10.5194/jm-44-193-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/jm-44-193-2025
© Author(s) 2025. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 44, issue 2
Research article
 | 
30 Jul 2025
Research article |  | 30 Jul 2025

Change in biodiversity and abundance of benthic foraminifera with distance from the Rainbow hydrothermal vent field, Mid-Atlantic Ridge

Hannah Krüger, Gerhard Schmiedl, Zvi Steiner, Zhouling Zhang, Eric P. Achterberg, and Nicolaas Glock

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Short summary
The biodiversity and abundance of benthic foraminifera tend to increase with distance within a transect from the Rainbow hydrothermal vent field. Miliolids dominate closer to the vents and may be better adapted to the potentially hydrothermal conditions than hyaline and agglutinated species. The reason for this remains unclear, but there are indications that elevated trace-metal concentrations in the porewater and intrusion of acidic hydrothermal fluids could have an influence on the foraminifera.
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