Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño
Diatoms play crucial functions in trophic structure and biogeochemical cycles. Due to poleward warming, there has been a substantial decrease in diatom biomass, especially in Antarctic regions that experience strong physical changes. Here we analyze the phytoplankton contents of water samples collec...
Published in: | Communications Earth & Environment |
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2021
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Online Access: | https://ueaeprints.uea.ac.uk/id/eprint/82738/ https://ueaeprints.uea.ac.uk/id/eprint/82738/1/Published_Version.pdf https://doi.org/10.1038/s43247-021-00322-4 |
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:82738 2023-05-15T14:04:01+02:00 Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño Costa, Raul Rodrigo Mendes, Carlos Rafael Borges Ferreira, Afonso Tavano, Virginia Maria Dotto, Tiago Segabinazzi Secchi, Eduardo Resende 2021-12-09 application/pdf https://ueaeprints.uea.ac.uk/id/eprint/82738/ https://ueaeprints.uea.ac.uk/id/eprint/82738/1/Published_Version.pdf https://doi.org/10.1038/s43247-021-00322-4 en eng https://ueaeprints.uea.ac.uk/id/eprint/82738/1/Published_Version.pdf Costa, Raul Rodrigo, Mendes, Carlos Rafael Borges, Ferreira, Afonso, Tavano, Virginia Maria, Dotto, Tiago Segabinazzi and Secchi, Eduardo Resende (2021) Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño. Communications Earth & Environment, 2 (1). ISSN 2662-4435 doi:10.1038/s43247-021-00322-4 cc_by CC-BY Article PeerReviewed 2021 ftuniveastangl https://doi.org/10.1038/s43247-021-00322-4 2023-01-30T21:56:19Z Diatoms play crucial functions in trophic structure and biogeochemical cycles. Due to poleward warming, there has been a substantial decrease in diatom biomass, especially in Antarctic regions that experience strong physical changes. Here we analyze the phytoplankton contents of water samples collected in the spring/summer of 2015/2016 off the North Antarctic Peninsula during the extreme El Niño event and compare them with corresponding satellite chlorophyll-a data. The results suggest a close link between large diatom blooms, upper ocean physical structures and sea ice cover, as a consequence of the El Niño effects. We observed massive concentrations (up to 40 mg m–3 of in situ chlorophyll-a) of diatoms coupled with substantially colder atmospheric and oceanic temperatures and high mean salinity values associated with a lower input of meltwater. We hypothesize that increased meltwater concentration due to continued atmospheric and oceanic warming trends will lead to diatom blooms becoming more episodic and spatially/temporally restricted. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Sea ice University of East Anglia: UEA Digital Repository Antarctic Antarctic Peninsula The Antarctic Communications Earth & Environment 2 1 |
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Open Polar |
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University of East Anglia: UEA Digital Repository |
op_collection_id |
ftuniveastangl |
language |
English |
description |
Diatoms play crucial functions in trophic structure and biogeochemical cycles. Due to poleward warming, there has been a substantial decrease in diatom biomass, especially in Antarctic regions that experience strong physical changes. Here we analyze the phytoplankton contents of water samples collected in the spring/summer of 2015/2016 off the North Antarctic Peninsula during the extreme El Niño event and compare them with corresponding satellite chlorophyll-a data. The results suggest a close link between large diatom blooms, upper ocean physical structures and sea ice cover, as a consequence of the El Niño effects. We observed massive concentrations (up to 40 mg m–3 of in situ chlorophyll-a) of diatoms coupled with substantially colder atmospheric and oceanic temperatures and high mean salinity values associated with a lower input of meltwater. We hypothesize that increased meltwater concentration due to continued atmospheric and oceanic warming trends will lead to diatom blooms becoming more episodic and spatially/temporally restricted. |
format |
Article in Journal/Newspaper |
author |
Costa, Raul Rodrigo Mendes, Carlos Rafael Borges Ferreira, Afonso Tavano, Virginia Maria Dotto, Tiago Segabinazzi Secchi, Eduardo Resende |
spellingShingle |
Costa, Raul Rodrigo Mendes, Carlos Rafael Borges Ferreira, Afonso Tavano, Virginia Maria Dotto, Tiago Segabinazzi Secchi, Eduardo Resende Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño |
author_facet |
Costa, Raul Rodrigo Mendes, Carlos Rafael Borges Ferreira, Afonso Tavano, Virginia Maria Dotto, Tiago Segabinazzi Secchi, Eduardo Resende |
author_sort |
Costa, Raul Rodrigo |
title |
Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño |
title_short |
Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño |
title_full |
Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño |
title_fullStr |
Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño |
title_full_unstemmed |
Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño |
title_sort |
large diatom bloom off the antarctic peninsula during cool conditions associated with the 2015/2016 el niño |
publishDate |
2021 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/82738/ https://ueaeprints.uea.ac.uk/id/eprint/82738/1/Published_Version.pdf https://doi.org/10.1038/s43247-021-00322-4 |
geographic |
Antarctic Antarctic Peninsula The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Sea ice |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Sea ice |
op_relation |
https://ueaeprints.uea.ac.uk/id/eprint/82738/1/Published_Version.pdf Costa, Raul Rodrigo, Mendes, Carlos Rafael Borges, Ferreira, Afonso, Tavano, Virginia Maria, Dotto, Tiago Segabinazzi and Secchi, Eduardo Resende (2021) Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño. Communications Earth & Environment, 2 (1). ISSN 2662-4435 doi:10.1038/s43247-021-00322-4 |
op_rights |
cc_by |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1038/s43247-021-00322-4 |
container_title |
Communications Earth & Environment |
container_volume |
2 |
container_issue |
1 |
_version_ |
1766274968051515392 |