Data from: 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...
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Online Access: | https://doi.org/10.5061/dryad.8j40q |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::2a87df74872c5aaefe8a6f75e3e31cff 2023-05-15T13:44:33+02:00 Data from: Early spring phytoplankton dynamics in the western Antarctic Peninsula Arrigo, Kevin R. Van Dijken, Gert L. Alderkamp, Anne-Carlijn Erickson, Zachary K. Lewis, Kate M. Lowry, Kate E. Joy-Warren, Hannah L. Middag, Rob Nash-Arrigo, Janice E. Selz, Virginia Van De Poll, Willem H. Van De Poll, Willem 2018-10-27 https://doi.org/10.5061/dryad.8j40q undefined unknown http://dx.doi.org/10.5061/dryad.8j40q https://dx.doi.org/10.5061/dryad.8j40q lic_creative-commons oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:99545 oai:easy.dans.knaw.nl:easy-dataset:99545 10.5061/dryad.8j40q 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 Life sciences medicine and health care bloom phytoplankton iron nutrients Western Antarctic Peninsula Antarctica envir geo Dataset https://vocabularies.coar-repositories.org/resource_types/c_ddb1/ 2018 fttriple https://doi.org/10.5061/dryad.8j40q 2023-01-22T17:23:35Z 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 non-shelf waters, especially toward the south. Macronutrients were high and non-limiting to phytoplankton growth in both shelf and non-shelf 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 to 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. CTD Profile DataCTD Sensor Profile Data Cruise NBP1409.nbp1409_ctd.txtCruise Bottle FileBottle file in WOCE WHP Exchange Format. Contains data from samples collected from Niskin bottles and CTD sensor data from cruise NBP1409.NBP1409_Arrigo_2017JC013281_hy1.csv Dataset Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice Unknown Antarctic Antarctic Peninsula |
institution |
Open Polar |
collection |
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op_collection_id |
fttriple |
language |
unknown |
topic |
Life sciences medicine and health care bloom phytoplankton iron nutrients Western Antarctic Peninsula Antarctica envir geo |
spellingShingle |
Life sciences medicine and health care bloom phytoplankton iron nutrients Western Antarctic Peninsula Antarctica envir geo Arrigo, Kevin R. Van Dijken, Gert L. Alderkamp, Anne-Carlijn Erickson, Zachary K. Lewis, Kate M. Lowry, Kate E. Joy-Warren, Hannah L. Middag, Rob Nash-Arrigo, Janice E. Selz, Virginia Van De Poll, Willem H. Van De Poll, Willem Data from: Early spring phytoplankton dynamics in the western Antarctic Peninsula |
topic_facet |
Life sciences medicine and health care bloom phytoplankton iron nutrients Western Antarctic Peninsula Antarctica envir geo |
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 non-shelf waters, especially toward the south. Macronutrients were high and non-limiting to phytoplankton growth in both shelf and non-shelf 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 to 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. CTD Profile DataCTD Sensor Profile Data Cruise NBP1409.nbp1409_ctd.txtCruise Bottle FileBottle file in WOCE WHP Exchange Format. Contains data from samples collected from Niskin bottles and CTD sensor data from cruise NBP1409.NBP1409_Arrigo_2017JC013281_hy1.csv |
format |
Dataset |
author |
Arrigo, Kevin R. Van Dijken, Gert L. Alderkamp, Anne-Carlijn Erickson, Zachary K. Lewis, Kate M. Lowry, Kate E. Joy-Warren, Hannah L. Middag, Rob Nash-Arrigo, Janice E. Selz, Virginia Van De Poll, Willem H. Van De Poll, Willem |
author_facet |
Arrigo, Kevin R. Van Dijken, Gert L. Alderkamp, Anne-Carlijn Erickson, Zachary K. Lewis, Kate M. Lowry, Kate E. Joy-Warren, Hannah L. Middag, Rob Nash-Arrigo, Janice E. Selz, Virginia Van De Poll, Willem H. Van De Poll, Willem |
author_sort |
Arrigo, Kevin R. |
title |
Data from: Early spring phytoplankton dynamics in the western Antarctic Peninsula |
title_short |
Data from: Early spring phytoplankton dynamics in the western Antarctic Peninsula |
title_full |
Data from: Early spring phytoplankton dynamics in the western Antarctic Peninsula |
title_fullStr |
Data from: Early spring phytoplankton dynamics in the western Antarctic Peninsula |
title_full_unstemmed |
Data from: Early spring phytoplankton dynamics in the western Antarctic Peninsula |
title_sort |
data from: early spring phytoplankton dynamics in the western antarctic peninsula |
publishDate |
2018 |
url |
https://doi.org/10.5061/dryad.8j40q |
geographic |
Antarctic Antarctic Peninsula |
geographic_facet |
Antarctic Antarctic Peninsula |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Sea ice |
op_source |
oai:services.nod.dans.knaw.nl:Products/dans:oai:easy.dans.knaw.nl:easy-dataset:99545 oai:easy.dans.knaw.nl:easy-dataset:99545 10.5061/dryad.8j40q 10|eurocrisdris::fe4903425d9040f680d8610d9079ea14 10|re3data_____::84e123776089ce3c7a33db98d9cd15a8 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 re3data_____::r3d100000044 10|re3data_____::94816e6421eeb072e7742ce6a9decc5f 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 |
op_relation |
http://dx.doi.org/10.5061/dryad.8j40q https://dx.doi.org/10.5061/dryad.8j40q |
op_rights |
lic_creative-commons |
op_doi |
https://doi.org/10.5061/dryad.8j40q |
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1766203066010304512 |