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Peer-reviewedCC BYPLOS One

Hudson River Estuary sediments contain high fractional abundances of preserved globothalamean foraminiferal organic linings at Piermont, New York

  • Logan Brenner1
  • Laura Haynes2
  • Batoul Saad1,3
  • Maisie Klem1
  • Amelia Lang1
  • Elizabeth Grey Linsley1
  • William Riley2
  • Sophie Spink1
  • Carolyn Zhao1
  • Margie Turrin4
  • Lorelei Curtin5
5 affiliations
  1. 1Department of Environmental Science, Barnard College, New York, NY, United States of America.
  2. 2Department of Earth Science and Geography, Vassar College, Poughkeepsie, NY, United States of America.
  3. 3School of Earth Sciences, The Ohio State University, Columbus, OH, United States of America.
  4. 4Lamont-Doherty Earth Observatory, Palisades, NY, United States of America.
  5. 5Department of Geology and Environmental Geosciences, Bucknell University, Lewisburg, PA, United States of America.
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Abstract

Foundational to an estuarine ecosystem is the composition of its sediments, with benthic foraminifera serving as a key component. While it is common to find intact and deformed tests, foraminiferal organic linings (FOLs; foraminifera whose tests dissolved) are not always present in sediment samples. Identifying where FOLs are preserved is a necessary first step towards determining what promotes their development and burial. Here we document the prevalence of globothalamean FOLs in the Hudson River Estuary (HRE) at the Pier in Piermont, New York, USA. We also identified six agglutinated foraminifera species and successfully imaged foraminifera that were collected while in the process of losing their tests. There are a multitude of factors that can lead to test dissolution with FOL preservation, but most are related to suboptimal growth conditions. While the HRE has a history of sediment pollution, studies utilizing foraminifera or FOLs to study the modern benthic environment are not common. Our study provides some of the first evidence for FOLs preserved in the HRE. This exploratory work is a critical step towards utilizing foraminifera as a proxy for benthic conditions, with specific recommendations for future FOL sampling to monitor sediment conditions in the HRE.

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Cite

BibTeXRIS
BibTeX
@article{brenner2026hudson,
  title = {{Hudson River Estuary sediments contain high fractional abundances of preserved globothalamean foraminiferal organic linings at Piermont, New York}},
  author = {Logan Brenner and Laura Haynes and Batoul Saad and Maisie Klem and Amelia Lang and Elizabeth Grey Linsley and William Riley and Sophie Spink and Carolyn Zhao and Margie Turrin and Lorelei Curtin},
  journal = {PLOS One},
  year = {2026},
  month = oct,
  doi = {10.1371/journal.pone.0361863},
  url = {https://doi.org/10.1371/journal.pone.0361863},
  note = {CC BY},
}
RIS
TY  - JOUR
TI  - Hudson River Estuary sediments contain high fractional abundances of preserved globothalamean foraminiferal organic linings at Piermont, New York
AU  - Logan Brenner
AU  - Laura Haynes
AU  - Batoul Saad
AU  - Maisie Klem
AU  - Amelia Lang
AU  - Elizabeth Grey Linsley
AU  - William Riley
AU  - Sophie Spink
AU  - Carolyn Zhao
AU  - Margie Turrin
AU  - Lorelei Curtin
PY  - 2026
DA  - 2026/10/30
JO  - PLOS One
DO  - 10.1371/journal.pone.0361863
UR  - https://doi.org/10.1371/journal.pone.0361863
AB  - Foundational to an estuarine ecosystem is the composition of its sediments, with benthic foraminifera serving as a key component. While it is common to find intact and deformed tests, foraminiferal organic linings (FOLs; foraminifera whose tests dissolved) are not always present in sediment samples. Identifying where FOLs are preserved is a necessary first step towards determining what promotes their development and burial. Here we document the prevalence of globothalamean FOLs in the Hudson River Estuary (HRE) at the Pier in Piermont, New York, USA. We also identified six agglutinated foraminifera species and successfully imaged foraminifera that were collected while in the process of losing their tests. There are a multitude of factors that can lead to test dissolution with FOL preservation, but most are related to suboptimal growth conditions. While the HRE has a history of sediment pollution, studies utilizing foraminifera or FOLs to study the modern benthic environment are not common. Our study provides some of the first evidence for FOLs preserved in the HRE. This exploratory work is a critical step towards utilizing foraminifera as a proxy for benthic conditions, with specific recommendations for future FOL sampling to monitor sediment conditions in the HRE.
SN  - 1932-6203
ER  -