Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula
The West Antarctic Peninsula (WAP) is a climatically-sensitive region where periods of strong warming have caused significant changes in marine ecosystem and food web processes. Tight coupling between phytoplankton and higher trophic levels implies that the coastal WAP is a bottom-up controlled syst...
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2018
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ftawi:oai:epic.awi.de:47294 2023-05-15T13:03:58+02:00 Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula Kim, Hyewon Ducklow, H. W. Abele, Doris Ruiz Barlett, E. M. Buma, A. G. J. Meredith, P. G. Rozema, Patrick D. Schofield, O. M. Venables, Hugh J. Schloss, I. R. 2018-06-28 https://epic.awi.de/id/eprint/47294/ https://hdl.handle.net/10013/epic.bb8da856-829b-4a3b-8875-87a704de04f6 unknown ROYAL SOC Kim, H. , Ducklow, H. W. , Abele, D. orcid:0000-0002-5766-5017 , Ruiz Barlett, E. M. , Buma, A. G. J. , Meredith, P. G. , Rozema, P. D. , Schofield, O. M. , Venables, H. J. and Schloss, I. R. (2018) Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula , Philosophical Transactions of the Royal Society A-Mathematical Physical and Engin, 376 (2122) . doi:10.1098/rsta2017.0174 <https://doi.org/10.1098/rsta2017.0174> , hdl:10013/epic.bb8da856-829b-4a3b-8875-87a704de04f6 info:eu-repo/semantics/openAccess EPIC3Philosophical Transactions of the Royal Society A-Mathematical Physical and Engin, ROYAL SOC, 376(2122), ISSN: 1364-503X Article isiRev info:eu-repo/semantics/article 2018 ftawi https://doi.org/10.1098/rsta2017.0174 2021-12-24T15:43:52Z The West Antarctic Peninsula (WAP) is a climatically-sensitive region where periods of strong warming have caused significant changes in marine ecosystem and food web processes. Tight coupling between phytoplankton and higher trophic levels implies that the coastal WAP is a bottom-up controlled system, where changes in phytoplankton dynamics may largely impact other food web components. Here, we analyzed the interdecadal time series of year-round chlorophyll-a (Chl) collected from three stations along the coastal WAP, Carlini Station at Potter Cove (PC) on King George Island, Palmer Station on Anvers Island, and Rothera Station on Adelaide Island. There were trends toward increased phytoplankton biomass at Carlini Station (PC) and Palmer Station, while phytoplankton biomass declined significantly at Rothera Station over the studied period. The impacts of two relevant climate modes to the WAP, the El Niño-Southern Oscillation and the Southern Annular Mode, on winter and spring phytoplankton biomass appear to be different among three sampling stations, suggesting a possibly more important role of local-scale forcing than large-scale forcing on phytoplankton dynamics at each station. The interannual variability of seasonal bloom progression derived from considering all three stations together captured ecologically meaningful, seasonally co-occurring bloom patterns which were primarily constrained by water-column stability strength. Our findings highlight a coupled link between phytoplankton and physical and climate dynamics along the coastal WAP, understanding of which is crucial in predicting overall WAP food web responses to climate change and variability. Article in Journal/Newspaper Adelaide Island Antarc* Antarctic Antarctic Peninsula Anvers Island King George Island Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Adelaide Island ENVELOPE(-68.914,-68.914,-67.762,-67.762) Antarctic Antarctic Peninsula Anvers ENVELOPE(-63.500,-63.500,-64.600,-64.600) Anvers Island ENVELOPE(-63.500,-63.500,-64.600,-64.600) Carlini Station ENVELOPE(-58.664,-58.664,-62.238,-62.238) King George Island Palmer Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) Palmer-Station ENVELOPE(-64.050,-64.050,-64.770,-64.770) Potter Cove Rothera ENVELOPE(-68.130,-68.130,-67.568,-67.568) Rothera Station ENVELOPE(-68.120,-68.120,-67.569,-67.569) |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
The West Antarctic Peninsula (WAP) is a climatically-sensitive region where periods of strong warming have caused significant changes in marine ecosystem and food web processes. Tight coupling between phytoplankton and higher trophic levels implies that the coastal WAP is a bottom-up controlled system, where changes in phytoplankton dynamics may largely impact other food web components. Here, we analyzed the interdecadal time series of year-round chlorophyll-a (Chl) collected from three stations along the coastal WAP, Carlini Station at Potter Cove (PC) on King George Island, Palmer Station on Anvers Island, and Rothera Station on Adelaide Island. There were trends toward increased phytoplankton biomass at Carlini Station (PC) and Palmer Station, while phytoplankton biomass declined significantly at Rothera Station over the studied period. The impacts of two relevant climate modes to the WAP, the El Niño-Southern Oscillation and the Southern Annular Mode, on winter and spring phytoplankton biomass appear to be different among three sampling stations, suggesting a possibly more important role of local-scale forcing than large-scale forcing on phytoplankton dynamics at each station. The interannual variability of seasonal bloom progression derived from considering all three stations together captured ecologically meaningful, seasonally co-occurring bloom patterns which were primarily constrained by water-column stability strength. Our findings highlight a coupled link between phytoplankton and physical and climate dynamics along the coastal WAP, understanding of which is crucial in predicting overall WAP food web responses to climate change and variability. |
format |
Article in Journal/Newspaper |
author |
Kim, Hyewon Ducklow, H. W. Abele, Doris Ruiz Barlett, E. M. Buma, A. G. J. Meredith, P. G. Rozema, Patrick D. Schofield, O. M. Venables, Hugh J. Schloss, I. R. |
spellingShingle |
Kim, Hyewon Ducklow, H. W. Abele, Doris Ruiz Barlett, E. M. Buma, A. G. J. Meredith, P. G. Rozema, Patrick D. Schofield, O. M. Venables, Hugh J. Schloss, I. R. Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula |
author_facet |
Kim, Hyewon Ducklow, H. W. Abele, Doris Ruiz Barlett, E. M. Buma, A. G. J. Meredith, P. G. Rozema, Patrick D. Schofield, O. M. Venables, Hugh J. Schloss, I. R. |
author_sort |
Kim, Hyewon |
title |
Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula |
title_short |
Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula |
title_full |
Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula |
title_fullStr |
Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula |
title_full_unstemmed |
Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula |
title_sort |
interdecadal variability of phytoplankton biomass accumulation along the coastal west antarctic peninsula |
publisher |
ROYAL SOC |
publishDate |
2018 |
url |
https://epic.awi.de/id/eprint/47294/ https://hdl.handle.net/10013/epic.bb8da856-829b-4a3b-8875-87a704de04f6 |
long_lat |
ENVELOPE(-68.914,-68.914,-67.762,-67.762) ENVELOPE(-63.500,-63.500,-64.600,-64.600) ENVELOPE(-63.500,-63.500,-64.600,-64.600) ENVELOPE(-58.664,-58.664,-62.238,-62.238) ENVELOPE(-64.050,-64.050,-64.770,-64.770) ENVELOPE(-64.050,-64.050,-64.770,-64.770) ENVELOPE(-68.130,-68.130,-67.568,-67.568) ENVELOPE(-68.120,-68.120,-67.569,-67.569) |
geographic |
Adelaide Island Antarctic Antarctic Peninsula Anvers Anvers Island Carlini Station King George Island Palmer Station Palmer-Station Potter Cove Rothera Rothera Station |
geographic_facet |
Adelaide Island Antarctic Antarctic Peninsula Anvers Anvers Island Carlini Station King George Island Palmer Station Palmer-Station Potter Cove Rothera Rothera Station |
genre |
Adelaide Island Antarc* Antarctic Antarctic Peninsula Anvers Island King George Island |
genre_facet |
Adelaide Island Antarc* Antarctic Antarctic Peninsula Anvers Island King George Island |
op_source |
EPIC3Philosophical Transactions of the Royal Society A-Mathematical Physical and Engin, ROYAL SOC, 376(2122), ISSN: 1364-503X |
op_relation |
Kim, H. , Ducklow, H. W. , Abele, D. orcid:0000-0002-5766-5017 , Ruiz Barlett, E. M. , Buma, A. G. J. , Meredith, P. G. , Rozema, P. D. , Schofield, O. M. , Venables, H. J. and Schloss, I. R. (2018) Interdecadal variability of phytoplankton biomass accumulation along the coastal West Antarctic Peninsula , Philosophical Transactions of the Royal Society A-Mathematical Physical and Engin, 376 (2122) . doi:10.1098/rsta2017.0174 <https://doi.org/10.1098/rsta2017.0174> , hdl:10013/epic.bb8da856-829b-4a3b-8875-87a704de04f6 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1098/rsta2017.0174 |
_version_ |
1766349230325104640 |