Large diatom bloom off the Antarctic Peninsula during cool conditions associated with the 2015/2016 El Niño
Abstract 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 sampl...
Published in: | Communications Earth & Environment |
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2021
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Online Access: | http://dx.doi.org/10.1038/s43247-021-00322-4 https://www.nature.com/articles/s43247-021-00322-4.pdf https://www.nature.com/articles/s43247-021-00322-4 |
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crspringernat:10.1038/s43247-021-00322-4 2023-05-15T14:06:04+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 EC | Horizon 2020 Framework Programme Ministry of Science, Technology and Innovation | Conselho Nacional de Desenvolvimento Científico e Tecnológico 2021 http://dx.doi.org/10.1038/s43247-021-00322-4 https://www.nature.com/articles/s43247-021-00322-4.pdf https://www.nature.com/articles/s43247-021-00322-4 en eng Springer Science and Business Media LLC https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 CC-BY Communications Earth & Environment volume 2, issue 1 ISSN 2662-4435 General Earth and Planetary Sciences General Environmental Science journal-article 2021 crspringernat https://doi.org/10.1038/s43247-021-00322-4 2022-01-04T16:28:34Z Abstract 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 Springer Nature (via Crossref) Antarctic Antarctic Peninsula The Antarctic Communications Earth & Environment 2 1 |
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Open Polar |
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Springer Nature (via Crossref) |
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crspringernat |
language |
English |
topic |
General Earth and Planetary Sciences General Environmental Science |
spellingShingle |
General Earth and Planetary Sciences General Environmental Science 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 |
topic_facet |
General Earth and Planetary Sciences General Environmental Science |
description |
Abstract 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. |
author2 |
EC | Horizon 2020 Framework Programme Ministry of Science, Technology and Innovation | Conselho Nacional de Desenvolvimento Científico e Tecnológico |
format |
Article in Journal/Newspaper |
author |
Costa, Raul Rodrigo Mendes, Carlos Rafael Borges Ferreira, Afonso Tavano, Virginia Maria Dotto, Tiago Segabinazzi Secchi, Eduardo Resende |
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 |
publisher |
Springer Science and Business Media LLC |
publishDate |
2021 |
url |
http://dx.doi.org/10.1038/s43247-021-00322-4 https://www.nature.com/articles/s43247-021-00322-4.pdf https://www.nature.com/articles/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_source |
Communications Earth & Environment volume 2, issue 1 ISSN 2662-4435 |
op_rights |
https://creativecommons.org/licenses/by/4.0 https://creativecommons.org/licenses/by/4.0 |
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_ |
1766277822559551488 |