Articles | Volume 23, issue 3
https://doi.org/10.5194/bg-23-1137-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-23-1137-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Feb 2026
Research article |
| 06 Feb 2026
| 06 Feb 2026
Community structures and taphonomic controls on benthic foraminiferal community from an Antarctic Fjord (Edisto Inlet, Victoria Land)
Department of Environmental Science Informatics and Statistics, Ca' Foscari University of Venice, via Torino 155, 30172, Venice, Italy
Departmnet of Earth Sciences, University of Pisa, via Santa Maria 56, 56126, Pisa, Italy
Climate Geochemistry Department, Max Planck Institute for Chemistry, Hahn-Meitner-Weg 1, 55128 Mainz, Germany
Francesca Caridi
Department of Life and Environmental Sciences, Polytechnic University of Marche, via delle Brecce Bianche, 60131, Ancona, Italy
Patrizia Giordano
Istitute of Polar Sciences, National Research Council (CNR), Via Piero Gobetti 101, 40129, Bologna, Italy
Caterina Morigi
Departmnet of Earth Sciences, University of Pisa, via Santa Maria 56, 56126, Pisa, Italy
Anna Sabbatini
Department of Life and Environmental Sciences, Polytechnic University of Marche, via delle Brecce Bianche, 60131, Ancona, Italy
Leonardo Langone
Istitute of Polar Sciences, National Research Council (CNR), Via Piero Gobetti 101, 40129, Bologna, Italy
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In the Edisto Inlet, Ross Sea, over the last 3.6 kyr, a marked transition at 2.7–2.5 kyr BP occurred. Geochemical proxies and changes in the foraminiferal community suggest a change from multi-year to seasonal sea ice, likely linked to mCDW (modified Circumpolar Deep Water) intrusion. The study integrates ecological information and geochemical data to unveil connections between mCDW, sea-ice conditions and the SAM (Southern Annular Mode) in Edisto, highlighting it as a key site for regional paleoclimate reconstruction over the Ross Sea.
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Our study provides guidelines improving the reuse of marine microfossil assemblage data, which are valuable for understanding past ecosystems and environmental change. Based on a survey of 113 researchers, we identified key data attributes required for effective reuse. Analysis of a selection of datasets available online reveals a gap between the attributes scientists consider essential and the data currently available, highlighting the need for clearer data documentation and sharing practices.
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A sediment core was analysed, focusing over the 2000 years, in Edisto Inlet. Benthic and planktic foraminifera were picked and used to determine changes in the faunal composition. Using other nearby cores, by comparing different proxies, we were able to identify a succession of three different environmental phases over the studied period: a seasonal-cycle phase (from 2000 to around 1500 years BP), a transitional phase (from 1500 to 700 years BP) and a cold phase (from 700 years to present).
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In the Edisto Inlet, Ross Sea, over the last 3.6 kyr, a marked transition at 2.7–2.5 kyr BP occurred. Geochemical proxies and changes in the foraminiferal community suggest a change from multi-year to seasonal sea ice, likely linked to mCDW (modified Circumpolar Deep Water) intrusion. The study integrates ecological information and geochemical data to unveil connections between mCDW, sea-ice conditions and the SAM (Southern Annular Mode) in Edisto, highlighting it as a key site for regional paleoclimate reconstruction over the Ross Sea.
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J. Micropalaeontol., 44, 145–168, https://doi.org/10.5194/jm-44-145-2025, https://doi.org/10.5194/jm-44-145-2025, 2025
Short summary
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Our study provides guidelines improving the reuse of marine microfossil assemblage data, which are valuable for understanding past ecosystems and environmental change. Based on a survey of 113 researchers, we identified key data attributes required for effective reuse. Analysis of a selection of datasets available online reveals a gap between the attributes scientists consider essential and the data currently available, highlighting the need for clearer data documentation and sharing practices.
Giacomo Galli, Caterina Morigi, Romana Melis, Alessio Di Roberto, Tommaso Tesi, Fiorenza Torricella, Leonardo Langone, Patrizia Giordano, Ester Colizza, Lucilla Capotondi, Andrea Gallerani, and Karen Gariboldi
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Short summary
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A sediment core was analysed, focusing over the 2000 years, in Edisto Inlet. Benthic and planktic foraminifera were picked and used to determine changes in the faunal composition. Using other nearby cores, by comparing different proxies, we were able to identify a succession of three different environmental phases over the studied period: a seasonal-cycle phase (from 2000 to around 1500 years BP), a transitional phase (from 1500 to 700 years BP) and a cold phase (from 700 years to present).
Francesco Paladini de Mendoza, Katrin Schroeder, Leonardo Langone, Jacopo Chiggiato, Mireno Borghini, Patrizia Giordano, Giulio Verazzo, and Stefano Miserocchi
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This work presents the dataset of continuous monitoring in the southern Adriatic Margin, providing a unique observatory of deep-water dynamics. The study area is influenced by episodic dense-water cascading, which is a fundamental process for water renewal and deep-water dynamics. Information about the frequency and intensity variations of these events is observed along a time series. The monitoring activities are still ongoing and the moorings are part of the EMSO-ERIC network.
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Short summary
We examine benthic foraminiferal communities along an inner-to-outer transect in a fjord of Victoria Land. Community structure reflects organic matter flux, sedimentation rates, and circulation regimes. Inner sites show signs of stress, likely tied to oxygen depletion after sea-ice break up. Outer sites have higher densities, suggesting improved conditions. Comparison between paleocommunities and modern assemblages shows that communities are still recovering from late Holocene changes.
We examine benthic foraminiferal communities along an inner-to-outer transect in a fjord of...
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