Planktic foraminiferal changes in the western Mediterranean Anthropocene
The increase in anthropogenic induced warming over the last two centuries is impacting marine environment. Planktic foraminifera are a globally distributed calcifying marine zooplankton responding sensitively to changes in sea surface temperatures and interacting with the food web structure. Here, w...
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ftcsic:oai:digital.csic.es:10261/248052 2024-02-11T10:06:40+01:00 Planktic foraminiferal changes in the western Mediterranean Anthropocene Pallacks, Sven Ziveri, Patrizia Martrat, Belen Mortyn, P. Graham Grelaud, Michael Schiebel, Ralf Incarbona, Alessandro García-Orellana, Jordi Anglada-Ortiz, Griselda 2021-09 http://hdl.handle.net/10261/248052 https://doi.org/10.1016/j.gloplacha.2021.103549 en eng Elsevier Publisher's version https://doi.org/10.1016/j.gloplacha.2021.103549 Sí Global and Planetary Change 204: 103549 (2021) http://hdl.handle.net/10261/248052 doi:10.1016/j.gloplacha.2021.103549 open Western Mediterranean Sea Last 1500 years Planktic foraminifera Natural variability Anthropogenic warming Marine surface production artículo http://purl.org/coar/resource_type/c_6501 2021 ftcsic https://doi.org/10.1016/j.gloplacha.2021.103549 2024-01-16T11:12:17Z The increase in anthropogenic induced warming over the last two centuries is impacting marine environment. Planktic foraminifera are a globally distributed calcifying marine zooplankton responding sensitively to changes in sea surface temperatures and interacting with the food web structure. Here, we study two high resolution multicore records from two western Mediterranean Sea regions (Alboran and Balearic basins), areas highly affected by both natural climate change and anthropogenic warming. Cores cover the time interval from the Medieval Climate Anomaly to present. Reconstructed sea surface temperatures are in good agreement with other results, tracing temperature changes through the Common Era (CE) and show a clear warming emergence at about 1850 CE. Both cores show opposite abundance fluctuations of planktic foraminiferal species (Globigerina bulloides, Globorotalia inflata and Globorotalia truncatulinoides), a common group of marine calcifying zooplankton. The relative abundance changes of Globorotalia truncatulinoides plus Globorotalia inflata describe the intensity of deep winter mixing in the Balearic basin. In the Alboran Sea, Globigerina bulloides and Globorotalia inflata instead respond to local upwelling dynamics. In the pre-industrial era, changes in planktic foraminiferal productivity and species composition can be explained mainly by the natural variability of the North Atlantic Oscillation, and, to a lesser extent, by the Atlantic Multidecadal Oscillation. In the industrial era, starting from about 1800 CE, this variability is affected by anthropogenic surface warming, leading to enhanced vertical stratification of the upper water column, and resulting in a decrease of surface productivity at both sites. We found that natural planktic foraminiferal population dynamics in the western Mediterranean is already altered by enhanced anthropogenic impact in the industrial era, suggesting that in this region natural cycles are being overprinted by human influences. We are grateful to George ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation Digital.CSIC (Spanish National Research Council) Global and Planetary Change 204 103549 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
English |
topic |
Western Mediterranean Sea Last 1500 years Planktic foraminifera Natural variability Anthropogenic warming Marine surface production |
spellingShingle |
Western Mediterranean Sea Last 1500 years Planktic foraminifera Natural variability Anthropogenic warming Marine surface production Pallacks, Sven Ziveri, Patrizia Martrat, Belen Mortyn, P. Graham Grelaud, Michael Schiebel, Ralf Incarbona, Alessandro García-Orellana, Jordi Anglada-Ortiz, Griselda Planktic foraminiferal changes in the western Mediterranean Anthropocene |
topic_facet |
Western Mediterranean Sea Last 1500 years Planktic foraminifera Natural variability Anthropogenic warming Marine surface production |
description |
The increase in anthropogenic induced warming over the last two centuries is impacting marine environment. Planktic foraminifera are a globally distributed calcifying marine zooplankton responding sensitively to changes in sea surface temperatures and interacting with the food web structure. Here, we study two high resolution multicore records from two western Mediterranean Sea regions (Alboran and Balearic basins), areas highly affected by both natural climate change and anthropogenic warming. Cores cover the time interval from the Medieval Climate Anomaly to present. Reconstructed sea surface temperatures are in good agreement with other results, tracing temperature changes through the Common Era (CE) and show a clear warming emergence at about 1850 CE. Both cores show opposite abundance fluctuations of planktic foraminiferal species (Globigerina bulloides, Globorotalia inflata and Globorotalia truncatulinoides), a common group of marine calcifying zooplankton. The relative abundance changes of Globorotalia truncatulinoides plus Globorotalia inflata describe the intensity of deep winter mixing in the Balearic basin. In the Alboran Sea, Globigerina bulloides and Globorotalia inflata instead respond to local upwelling dynamics. In the pre-industrial era, changes in planktic foraminiferal productivity and species composition can be explained mainly by the natural variability of the North Atlantic Oscillation, and, to a lesser extent, by the Atlantic Multidecadal Oscillation. In the industrial era, starting from about 1800 CE, this variability is affected by anthropogenic surface warming, leading to enhanced vertical stratification of the upper water column, and resulting in a decrease of surface productivity at both sites. We found that natural planktic foraminiferal population dynamics in the western Mediterranean is already altered by enhanced anthropogenic impact in the industrial era, suggesting that in this region natural cycles are being overprinted by human influences. We are grateful to George ... |
format |
Article in Journal/Newspaper |
author |
Pallacks, Sven Ziveri, Patrizia Martrat, Belen Mortyn, P. Graham Grelaud, Michael Schiebel, Ralf Incarbona, Alessandro García-Orellana, Jordi Anglada-Ortiz, Griselda |
author_facet |
Pallacks, Sven Ziveri, Patrizia Martrat, Belen Mortyn, P. Graham Grelaud, Michael Schiebel, Ralf Incarbona, Alessandro García-Orellana, Jordi Anglada-Ortiz, Griselda |
author_sort |
Pallacks, Sven |
title |
Planktic foraminiferal changes in the western Mediterranean Anthropocene |
title_short |
Planktic foraminiferal changes in the western Mediterranean Anthropocene |
title_full |
Planktic foraminiferal changes in the western Mediterranean Anthropocene |
title_fullStr |
Planktic foraminiferal changes in the western Mediterranean Anthropocene |
title_full_unstemmed |
Planktic foraminiferal changes in the western Mediterranean Anthropocene |
title_sort |
planktic foraminiferal changes in the western mediterranean anthropocene |
publisher |
Elsevier |
publishDate |
2021 |
url |
http://hdl.handle.net/10261/248052 https://doi.org/10.1016/j.gloplacha.2021.103549 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
Publisher's version https://doi.org/10.1016/j.gloplacha.2021.103549 Sí Global and Planetary Change 204: 103549 (2021) http://hdl.handle.net/10261/248052 doi:10.1016/j.gloplacha.2021.103549 |
op_rights |
open |
op_doi |
https://doi.org/10.1016/j.gloplacha.2021.103549 |
container_title |
Global and Planetary Change |
container_volume |
204 |
container_start_page |
103549 |
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1790604505593675776 |