Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula
The Palmer Long-Term Ecological Research program has sampled waters of the western Antarctic Peninsula (wAP) annually each summer since 1990. However, information about the wAP prior to the peak of the phytoplankton bloom in January is sparse. Here we present results from a spring process cruise tha...
Published in: | Journal of Geophysical Research: Oceans |
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Main Authors: | , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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2017
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Online Access: | https://hdl.handle.net/11370/e31c4952-954f-451f-892d-544dbbeb1358 https://research.rug.nl/en/publications/e31c4952-954f-451f-892d-544dbbeb1358 https://doi.org/10.1002/2017JC013281 https://pure.rug.nl/ws/files/54244698/Arrigo_et_al_2017_Journal_of_Geophysical_Research_Oceans.pdf |
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ftunigroningenpu:oai:pure.rug.nl:publications/e31c4952-954f-451f-892d-544dbbeb1358 2024-09-15T17:39:11+00:00 Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula Arrigo, Kevin R. Dijken, Gert L. van Alderkamp, Anne‐Carlijn Erickson, Zachary K. Lewis, Kate M. Lowry, Kate E. Joy‐Warren, Hannah L. Middag, Rob Nash‐Arrigo, Janice E. Selz, Virginia Poll, Willem van de 2017-12-01 application/pdf https://hdl.handle.net/11370/e31c4952-954f-451f-892d-544dbbeb1358 https://research.rug.nl/en/publications/e31c4952-954f-451f-892d-544dbbeb1358 https://doi.org/10.1002/2017JC013281 https://pure.rug.nl/ws/files/54244698/Arrigo_et_al_2017_Journal_of_Geophysical_Research_Oceans.pdf eng eng https://research.rug.nl/en/publications/e31c4952-954f-451f-892d-544dbbeb1358 info:eu-repo/semantics/openAccess Arrigo , K R , Dijken , G L V , Alderkamp , AC , Erickson , Z K , Lewis , K M , Lowry , K E , Joy‐Warren , H L , Middag , R , Nash‐Arrigo , J E , Selz , V & Poll , W V D 2017 , ' Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula ' , Journal of geophysical research: Oceans , vol. 122 , no. 11 , pp. 9350-9369 . https://doi.org/10.1002/2017JC013281 Phytoplankton Antarctic ROSS SEA FRAGILARIOPSIS-CYLINDRUS NORTHERN MARGUERITE BAY MELTING GLACIERS FUELS ICE ZONE WEST SOUTHERN-OCEAN SEA-ICE INTERANNUAL VARIABILITY DRAKE PASSAGE AMUNDSEN SEA article 2017 ftunigroningenpu https://doi.org/10.1002/2017JC013281 2024-07-01T14:49:23Z The Palmer Long-Term Ecological Research program has sampled waters of the western Antarctic Peninsula (wAP) annually each summer since 1990. However, information about the wAP prior to the peak of the phytoplankton bloom in January is sparse. Here we present results from a spring process cruise that sampled the wAP in the early stages of phytoplankton bloom development in 2014. Sea ice concentrations were high on the shelf relative to nonshelf waters, especially toward the south. Macronutrients were high and nonlimiting to phytoplankton growth in both shelf and nonshelf waters, while dissolved iron concentrations were high only on the shelf. Phytoplankton were in good physiological condition throughout the wAP, although biomass on the shelf was uniformly low, presumably because of heavy sea ice cover. In contrast, an early stage phytoplankton bloom was observed beneath variable sea ice cover just seaward of the shelf break. Chlorophyll a concentrations in the bloom reached 2 mg m−3 within a 100–150 km band between the SBACC and SACCF. The location of the bloom appeared to be controlled by a balance between enhanced vertical mixing at the position of the two fronts and increased stratification due to melting sea ice between them. Unlike summer, when diatoms overwhelmingly dominate the phytoplankton population of the wAP, the haptophyte Phaeocystis antarctica dominated in spring, although diatoms were common. These results suggest that factors controlling phytoplankton abundance and composition change seasonally and may differentially affect phytoplankton populations as environmental conditions within the wAP region continue to change. Article in Journal/Newspaper Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica Drake Passage Ross Sea Sea ice Southern Ocean University of Groningen research database Journal of Geophysical Research: Oceans 122 12 9350 9369 |
institution |
Open Polar |
collection |
University of Groningen research database |
op_collection_id |
ftunigroningenpu |
language |
English |
topic |
Phytoplankton Antarctic ROSS SEA FRAGILARIOPSIS-CYLINDRUS NORTHERN MARGUERITE BAY MELTING GLACIERS FUELS ICE ZONE WEST SOUTHERN-OCEAN SEA-ICE INTERANNUAL VARIABILITY DRAKE PASSAGE AMUNDSEN SEA |
spellingShingle |
Phytoplankton Antarctic ROSS SEA FRAGILARIOPSIS-CYLINDRUS NORTHERN MARGUERITE BAY MELTING GLACIERS FUELS ICE ZONE WEST SOUTHERN-OCEAN SEA-ICE INTERANNUAL VARIABILITY DRAKE PASSAGE AMUNDSEN SEA Arrigo, Kevin R. Dijken, Gert L. van Alderkamp, Anne‐Carlijn Erickson, Zachary K. Lewis, Kate M. Lowry, Kate E. Joy‐Warren, Hannah L. Middag, Rob Nash‐Arrigo, Janice E. Selz, Virginia Poll, Willem van de Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula |
topic_facet |
Phytoplankton Antarctic ROSS SEA FRAGILARIOPSIS-CYLINDRUS NORTHERN MARGUERITE BAY MELTING GLACIERS FUELS ICE ZONE WEST SOUTHERN-OCEAN SEA-ICE INTERANNUAL VARIABILITY DRAKE PASSAGE AMUNDSEN SEA |
description |
The Palmer Long-Term Ecological Research program has sampled waters of the western Antarctic Peninsula (wAP) annually each summer since 1990. However, information about the wAP prior to the peak of the phytoplankton bloom in January is sparse. Here we present results from a spring process cruise that sampled the wAP in the early stages of phytoplankton bloom development in 2014. Sea ice concentrations were high on the shelf relative to nonshelf waters, especially toward the south. Macronutrients were high and nonlimiting to phytoplankton growth in both shelf and nonshelf waters, while dissolved iron concentrations were high only on the shelf. Phytoplankton were in good physiological condition throughout the wAP, although biomass on the shelf was uniformly low, presumably because of heavy sea ice cover. In contrast, an early stage phytoplankton bloom was observed beneath variable sea ice cover just seaward of the shelf break. Chlorophyll a concentrations in the bloom reached 2 mg m−3 within a 100–150 km band between the SBACC and SACCF. The location of the bloom appeared to be controlled by a balance between enhanced vertical mixing at the position of the two fronts and increased stratification due to melting sea ice between them. Unlike summer, when diatoms overwhelmingly dominate the phytoplankton population of the wAP, the haptophyte Phaeocystis antarctica dominated in spring, although diatoms were common. These results suggest that factors controlling phytoplankton abundance and composition change seasonally and may differentially affect phytoplankton populations as environmental conditions within the wAP region continue to change. |
format |
Article in Journal/Newspaper |
author |
Arrigo, Kevin R. Dijken, Gert L. van Alderkamp, Anne‐Carlijn Erickson, Zachary K. Lewis, Kate M. Lowry, Kate E. Joy‐Warren, Hannah L. Middag, Rob Nash‐Arrigo, Janice E. Selz, Virginia Poll, Willem van de |
author_facet |
Arrigo, Kevin R. Dijken, Gert L. van Alderkamp, Anne‐Carlijn Erickson, Zachary K. Lewis, Kate M. Lowry, Kate E. Joy‐Warren, Hannah L. Middag, Rob Nash‐Arrigo, Janice E. Selz, Virginia Poll, Willem van de |
author_sort |
Arrigo, Kevin R. |
title |
Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula |
title_short |
Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula |
title_full |
Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula |
title_fullStr |
Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula |
title_full_unstemmed |
Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula |
title_sort |
early spring phytoplankton dynamics in the western antarctic peninsula |
publishDate |
2017 |
url |
https://hdl.handle.net/11370/e31c4952-954f-451f-892d-544dbbeb1358 https://research.rug.nl/en/publications/e31c4952-954f-451f-892d-544dbbeb1358 https://doi.org/10.1002/2017JC013281 https://pure.rug.nl/ws/files/54244698/Arrigo_et_al_2017_Journal_of_Geophysical_Research_Oceans.pdf |
genre |
Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica Drake Passage Ross Sea Sea ice Southern Ocean |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctic Peninsula Antarctica Drake Passage Ross Sea Sea ice Southern Ocean |
op_source |
Arrigo , K R , Dijken , G L V , Alderkamp , AC , Erickson , Z K , Lewis , K M , Lowry , K E , Joy‐Warren , H L , Middag , R , Nash‐Arrigo , J E , Selz , V & Poll , W V D 2017 , ' Early Spring Phytoplankton Dynamics in the Western Antarctic Peninsula ' , Journal of geophysical research: Oceans , vol. 122 , no. 11 , pp. 9350-9369 . https://doi.org/10.1002/2017JC013281 |
op_relation |
https://research.rug.nl/en/publications/e31c4952-954f-451f-892d-544dbbeb1358 |
op_rights |
info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1002/2017JC013281 |
container_title |
Journal of Geophysical Research: Oceans |
container_volume |
122 |
container_issue |
12 |
container_start_page |
9350 |
op_container_end_page |
9369 |
_version_ |
1810477960102150144 |