Fluxes and isotopic composition of planktonic foraminifera off Hainan Island, northern South China Sea: Implications for paleoceanographic studies
Planktonic foraminifera collected from a sediment trap deployed off Hainan in the northwestern South China Sea (SCS-NW) between July 2012 and April 2013 were studied to evaluate their seasonal variability and ecology as well as to infer the factors controlling their shell fluxes. The total planktoni...
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ftchinacscnigpas:oai:ir.nigpas.ac.cn:332004/32520 2023-05-15T18:00:24+02:00 Fluxes and isotopic composition of planktonic foraminifera off Hainan Island, northern South China Sea: Implications for paleoceanographic studies Ladigbolu, Ismail Adejare Li, Bao-Hua Li, Hong-Liang Wiesner, Martin G. Yu, Zhou-Fei Zhang, Jing-Jing Sun, Lin Ran, Li-Hua Ye, Ying Chen, Jian-Fang 2020-09-01 http://ir.nigpas.ac.cn/handle/332004/32520 https://doi.org/10.1016/j.palwor.2019.07.006 英语 eng ELSEVIER PALAEOWORLD http://ir.nigpas.ac.cn/handle/332004/32520 doi:10.1016/j.palwor.2019.07.006 Planktonic foraminifera Sediment trap flux Stable isotope Seasonality Northwestern South China Sea SEDIMENT TRAP SEASONAL-VARIATIONS SURFACE TEMPERATURE PHYTOPLANKTON DEPOSITION PRODUCTIVITY ENHANCEMENT VARIABILITY NITROGEN HABITAT Paleontology 期刊论文 2020 ftchinacscnigpas https://doi.org/10.1016/j.palwor.2019.07.006 2020-12-04T01:05:29Z Planktonic foraminifera collected from a sediment trap deployed off Hainan in the northwestern South China Sea (SCS-NW) between July 2012 and April 2013 were studied to evaluate their seasonal variability and ecology as well as to infer the factors controlling their shell fluxes. The total planktonic foraminifera flux, as well as the fluxes of the dominant species (Globigerinoides ruber, Globigerinoides sacculifer and Neogloboquadrina dutertrei), showed three distinct maxima during SW-monsoon in August 2012, the SW-NE intermonsoon in October 2012 and the NE-monsoon in December 2012-February 2013. These periods were characterized by upwelling, aerosol fallout, and intense wind mixing, respectively, from which the foraminiferal assemblages benefitted, as indicated by the close correlation between wind speed, sea surface temperature (SST), chlorophyll a concentration (Chl-a), delta O-18 of G. ruber and the shell fluxes. The correlation also suggests that temperature and food availability might have been the primary drivers of the observed changes in foraminiferal abundance. The offset between the SST deduced from flux-weighted of G. ruber delta O-18 and annual mean SST is only similar to 0.3 degrees C, much lower than similar to 5.2 degrees C between the summer and winter temperature, indicating a balanced seasonality bias in the shell flux. The linear regression between the satellite-derived sea surface temperature and G. ruber delta O-18 reveals the strong potential of this species, at least in the studied region, as an ecological indicator for past oceanic environments. (C) 2019 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved. Report Planktonic foraminifera Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) Palaeoworld 29 3 636 647 |
institution |
Open Polar |
collection |
Nanjing Institute of Geology and Palaeontology: NIGPAS OpenIR (Chinese Academy of Sciences) |
op_collection_id |
ftchinacscnigpas |
language |
English |
topic |
Planktonic foraminifera Sediment trap flux Stable isotope Seasonality Northwestern South China Sea SEDIMENT TRAP SEASONAL-VARIATIONS SURFACE TEMPERATURE PHYTOPLANKTON DEPOSITION PRODUCTIVITY ENHANCEMENT VARIABILITY NITROGEN HABITAT Paleontology |
spellingShingle |
Planktonic foraminifera Sediment trap flux Stable isotope Seasonality Northwestern South China Sea SEDIMENT TRAP SEASONAL-VARIATIONS SURFACE TEMPERATURE PHYTOPLANKTON DEPOSITION PRODUCTIVITY ENHANCEMENT VARIABILITY NITROGEN HABITAT Paleontology Ladigbolu, Ismail Adejare Li, Bao-Hua Li, Hong-Liang Wiesner, Martin G. Yu, Zhou-Fei Zhang, Jing-Jing Sun, Lin Ran, Li-Hua Ye, Ying Chen, Jian-Fang Fluxes and isotopic composition of planktonic foraminifera off Hainan Island, northern South China Sea: Implications for paleoceanographic studies |
topic_facet |
Planktonic foraminifera Sediment trap flux Stable isotope Seasonality Northwestern South China Sea SEDIMENT TRAP SEASONAL-VARIATIONS SURFACE TEMPERATURE PHYTOPLANKTON DEPOSITION PRODUCTIVITY ENHANCEMENT VARIABILITY NITROGEN HABITAT Paleontology |
description |
Planktonic foraminifera collected from a sediment trap deployed off Hainan in the northwestern South China Sea (SCS-NW) between July 2012 and April 2013 were studied to evaluate their seasonal variability and ecology as well as to infer the factors controlling their shell fluxes. The total planktonic foraminifera flux, as well as the fluxes of the dominant species (Globigerinoides ruber, Globigerinoides sacculifer and Neogloboquadrina dutertrei), showed three distinct maxima during SW-monsoon in August 2012, the SW-NE intermonsoon in October 2012 and the NE-monsoon in December 2012-February 2013. These periods were characterized by upwelling, aerosol fallout, and intense wind mixing, respectively, from which the foraminiferal assemblages benefitted, as indicated by the close correlation between wind speed, sea surface temperature (SST), chlorophyll a concentration (Chl-a), delta O-18 of G. ruber and the shell fluxes. The correlation also suggests that temperature and food availability might have been the primary drivers of the observed changes in foraminiferal abundance. The offset between the SST deduced from flux-weighted of G. ruber delta O-18 and annual mean SST is only similar to 0.3 degrees C, much lower than similar to 5.2 degrees C between the summer and winter temperature, indicating a balanced seasonality bias in the shell flux. The linear regression between the satellite-derived sea surface temperature and G. ruber delta O-18 reveals the strong potential of this species, at least in the studied region, as an ecological indicator for past oceanic environments. (C) 2019 Elsevier Ireland Ltd Elsevier B.V. and Nanjing Institute of Geology and Palaeontology, CAS. All rights reserved. |
format |
Report |
author |
Ladigbolu, Ismail Adejare Li, Bao-Hua Li, Hong-Liang Wiesner, Martin G. Yu, Zhou-Fei Zhang, Jing-Jing Sun, Lin Ran, Li-Hua Ye, Ying Chen, Jian-Fang |
author_facet |
Ladigbolu, Ismail Adejare Li, Bao-Hua Li, Hong-Liang Wiesner, Martin G. Yu, Zhou-Fei Zhang, Jing-Jing Sun, Lin Ran, Li-Hua Ye, Ying Chen, Jian-Fang |
author_sort |
Ladigbolu, Ismail Adejare |
title |
Fluxes and isotopic composition of planktonic foraminifera off Hainan Island, northern South China Sea: Implications for paleoceanographic studies |
title_short |
Fluxes and isotopic composition of planktonic foraminifera off Hainan Island, northern South China Sea: Implications for paleoceanographic studies |
title_full |
Fluxes and isotopic composition of planktonic foraminifera off Hainan Island, northern South China Sea: Implications for paleoceanographic studies |
title_fullStr |
Fluxes and isotopic composition of planktonic foraminifera off Hainan Island, northern South China Sea: Implications for paleoceanographic studies |
title_full_unstemmed |
Fluxes and isotopic composition of planktonic foraminifera off Hainan Island, northern South China Sea: Implications for paleoceanographic studies |
title_sort |
fluxes and isotopic composition of planktonic foraminifera off hainan island, northern south china sea: implications for paleoceanographic studies |
publisher |
ELSEVIER |
publishDate |
2020 |
url |
http://ir.nigpas.ac.cn/handle/332004/32520 https://doi.org/10.1016/j.palwor.2019.07.006 |
genre |
Planktonic foraminifera |
genre_facet |
Planktonic foraminifera |
op_relation |
PALAEOWORLD http://ir.nigpas.ac.cn/handle/332004/32520 doi:10.1016/j.palwor.2019.07.006 |
op_doi |
https://doi.org/10.1016/j.palwor.2019.07.006 |
container_title |
Palaeoworld |
container_volume |
29 |
container_issue |
3 |
container_start_page |
636 |
op_container_end_page |
647 |
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1766169476402774016 |