Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study
The West Antarctic Peninsula (WAP) exhibits strong spatial and temporal oceanographic variability, resulting in highly heterogeneous biological productivity. Calcifying organisms that live in the waters off the WAP respond to temporal and spatial variations in ocean temperature and chemistry. These...
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Online Access: | http://nora.nerc.ac.uk/id/eprint/521468/ https://nora.nerc.ac.uk/id/eprint/521468/1/bg-16-3267-2019.pdf https://www.biogeosciences.net/16/3267/2019/ |
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ftnerc:oai:nora.nerc.ac.uk:521468 2023-05-15T13:41:42+02:00 Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study Mikis, Anna Hendry, Katharine R. Pike, Jennifer Schmidt, Daniela N. Edgar, Kirsty M. Peck, Victoria Peeters, Frank J.C. Leng, Melanie J. Meredith, Michael P. Todd, Chloe L. Stammerjohn, Sharon Ducklow, Hugh 2019-08-30 text http://nora.nerc.ac.uk/id/eprint/521468/ https://nora.nerc.ac.uk/id/eprint/521468/1/bg-16-3267-2019.pdf https://www.biogeosciences.net/16/3267/2019/ en eng https://nora.nerc.ac.uk/id/eprint/521468/1/bg-16-3267-2019.pdf Mikis, Anna; Hendry, Katharine R.; Pike, Jennifer; Schmidt, Daniela N.; Edgar, Kirsty M.; Peck, Victoria orcid:0000-0002-7948-6853 Peeters, Frank J.C.; Leng, Melanie J. orcid:0000-0003-1115-5166 Meredith, Michael P. orcid:0000-0002-7342-7756 Todd, Chloe L.; Stammerjohn, Sharon; Ducklow, Hugh. 2019 Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study. Biogeosciences, 16. 3267-3282. https://doi.org/10.5194/bg-16-3267-2019 <https://doi.org/10.5194/bg-16-3267-2019> cc_by_4 CC-BY Publication - Article PeerReviewed 2019 ftnerc https://doi.org/10.5194/bg-16-3267-2019 2023-02-04T19:47:20Z The West Antarctic Peninsula (WAP) exhibits strong spatial and temporal oceanographic variability, resulting in highly heterogeneous biological productivity. Calcifying organisms that live in the waters off the WAP respond to temporal and spatial variations in ocean temperature and chemistry. These marine calcifiers are potentially threatened by regional climate change with waters already naturally close to carbonate undersaturation. Future projections of carbonate production in the Southern Ocean are challenging due to the lack of historical data collection and complex, decadal climate variability. Here we present a 6-year-long record of the shell fluxes, morphology and stable isotope variability of the polar planktic foraminifera Neogloboquadrina pachyderma (sensu stricto) from near Palmer Station, Antarctica. This species is fundamental to Southern Ocean planktic carbonate production as it is one of the very few planktic foraminifer species adapted to the marine polar environments. We use these new data to obtain insights into its ecology and to derive a robust assessment of the response of this polar species to environmental change. Morphology and stable isotope composition reveal the presence of different growth stages within this tightly defined species. Inter- and intra-annual variability of foraminiferal flux and size is evident and driven by a combination of environmental forcing parameters, most importantly food availability, temperature and sea ice duration and extent. Foraminiferal growth occurs throughout the austral year and is influenced by environmental change, a large portion of which is driven by the Southern Annular Mode and El Niño–Southern Oscillation. A distinct seasonal production is observed, with the highest shell fluxes during the warmest and most productive months of the year. The sensitivity of calcifying foraminifera to environmental variability in this region, from weeks to decades, has implications both for their response to future climatic change and for their use as palaeoclimate ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Neogloboquadrina pachyderma Sea ice Southern Ocean Natural Environment Research Council: NERC Open Research Archive Antarctic Southern Ocean Antarctic Peninsula Austral Palmer Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) Palmer-Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) Biogeosciences 16 16 3267 3282 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
English |
description |
The West Antarctic Peninsula (WAP) exhibits strong spatial and temporal oceanographic variability, resulting in highly heterogeneous biological productivity. Calcifying organisms that live in the waters off the WAP respond to temporal and spatial variations in ocean temperature and chemistry. These marine calcifiers are potentially threatened by regional climate change with waters already naturally close to carbonate undersaturation. Future projections of carbonate production in the Southern Ocean are challenging due to the lack of historical data collection and complex, decadal climate variability. Here we present a 6-year-long record of the shell fluxes, morphology and stable isotope variability of the polar planktic foraminifera Neogloboquadrina pachyderma (sensu stricto) from near Palmer Station, Antarctica. This species is fundamental to Southern Ocean planktic carbonate production as it is one of the very few planktic foraminifer species adapted to the marine polar environments. We use these new data to obtain insights into its ecology and to derive a robust assessment of the response of this polar species to environmental change. Morphology and stable isotope composition reveal the presence of different growth stages within this tightly defined species. Inter- and intra-annual variability of foraminiferal flux and size is evident and driven by a combination of environmental forcing parameters, most importantly food availability, temperature and sea ice duration and extent. Foraminiferal growth occurs throughout the austral year and is influenced by environmental change, a large portion of which is driven by the Southern Annular Mode and El Niño–Southern Oscillation. A distinct seasonal production is observed, with the highest shell fluxes during the warmest and most productive months of the year. The sensitivity of calcifying foraminifera to environmental variability in this region, from weeks to decades, has implications both for their response to future climatic change and for their use as palaeoclimate ... |
format |
Article in Journal/Newspaper |
author |
Mikis, Anna Hendry, Katharine R. Pike, Jennifer Schmidt, Daniela N. Edgar, Kirsty M. Peck, Victoria Peeters, Frank J.C. Leng, Melanie J. Meredith, Michael P. Todd, Chloe L. Stammerjohn, Sharon Ducklow, Hugh |
spellingShingle |
Mikis, Anna Hendry, Katharine R. Pike, Jennifer Schmidt, Daniela N. Edgar, Kirsty M. Peck, Victoria Peeters, Frank J.C. Leng, Melanie J. Meredith, Michael P. Todd, Chloe L. Stammerjohn, Sharon Ducklow, Hugh Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study |
author_facet |
Mikis, Anna Hendry, Katharine R. Pike, Jennifer Schmidt, Daniela N. Edgar, Kirsty M. Peck, Victoria Peeters, Frank J.C. Leng, Melanie J. Meredith, Michael P. Todd, Chloe L. Stammerjohn, Sharon Ducklow, Hugh |
author_sort |
Mikis, Anna |
title |
Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study |
title_short |
Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study |
title_full |
Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study |
title_fullStr |
Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study |
title_full_unstemmed |
Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study |
title_sort |
temporal variability in foraminiferal morphology and geochemistry at the west antarctic peninsula: a sediment trap study |
publishDate |
2019 |
url |
http://nora.nerc.ac.uk/id/eprint/521468/ https://nora.nerc.ac.uk/id/eprint/521468/1/bg-16-3267-2019.pdf https://www.biogeosciences.net/16/3267/2019/ |
long_lat |
ENVELOPE(-64.050,-64.050,-64.770,-64.770) ENVELOPE(-64.050,-64.050,-64.770,-64.770) |
geographic |
Antarctic Southern Ocean Antarctic Peninsula Austral Palmer Station Palmer-Station |
geographic_facet |
Antarctic Southern Ocean Antarctic Peninsula Austral Palmer Station Palmer-Station |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Neogloboquadrina pachyderma Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Neogloboquadrina pachyderma Sea ice Southern Ocean |
op_relation |
https://nora.nerc.ac.uk/id/eprint/521468/1/bg-16-3267-2019.pdf Mikis, Anna; Hendry, Katharine R.; Pike, Jennifer; Schmidt, Daniela N.; Edgar, Kirsty M.; Peck, Victoria orcid:0000-0002-7948-6853 Peeters, Frank J.C.; Leng, Melanie J. orcid:0000-0003-1115-5166 Meredith, Michael P. orcid:0000-0002-7342-7756 Todd, Chloe L.; Stammerjohn, Sharon; Ducklow, Hugh. 2019 Temporal variability in foraminiferal morphology and geochemistry at the West Antarctic Peninsula: a sediment trap study. Biogeosciences, 16. 3267-3282. https://doi.org/10.5194/bg-16-3267-2019 <https://doi.org/10.5194/bg-16-3267-2019> |
op_rights |
cc_by_4 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.5194/bg-16-3267-2019 |
container_title |
Biogeosciences |
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16 |
container_issue |
16 |
container_start_page |
3267 |
op_container_end_page |
3282 |
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1766154068436189184 |