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dc.contributor.authorMoreau, Sebastien
dc.contributor.authorHattermann, Tore
dc.contributor.authorde Steur, Laura
dc.contributor.authorKauko, Hanna M.
dc.contributor.authorAhonen, Heidi
dc.contributor.authorArdelan, Murat
dc.contributor.authorAssmy, Philipp
dc.contributor.authorChierici, Melissa
dc.contributor.authorDescamps, Sebastien
dc.contributor.authorDinter, Tilman
dc.contributor.authorFalkenhaug, Tone
dc.contributor.authorFransson, Agneta
dc.contributor.authorGrønningsæter, Eirik
dc.contributor.authorHallfredsson, Elvar H.
dc.contributor.authorHuhn, Oliver
dc.contributor.authorLebrun, Anais
dc.contributor.authorLowther, Andrew
dc.contributor.authorLübcker, Nico
dc.contributor.authorMonteiro, Pedro
dc.contributor.authorPeeken, Ilka
dc.contributor.authorRoychoudhury, Alakendra
dc.contributor.authorRóżańska, Magdalena
dc.contributor.authorRyan-Keogh, Thomas
dc.contributor.authorSanchez, Nicolas
dc.contributor.authorSingh, Asmita
dc.contributor.authorSimonsen, Jan Henrik
dc.contributor.authorSteiger, Nadine
dc.contributor.authorThomalla, Sandy J.
dc.contributor.authorvan Tonder, Andre
dc.contributor.authorWiktor, Jozef M.
dc.contributor.authorSteen, Harald
dc.coverage.spatialWeddell Gyreen_US
dc.coverage.spatialSouthern Oceanen_US
dc.date.accessioned2023-09-23T20:34:17Z
dc.date.available2023-09-23T20:34:17Z
dc.date.issued2023
dc.identifier.doihttps://doi.org/10.1038/s41467-023-36992-1
dc.identifier.urihttp://hdl.handle.net/1834/42793
dc.description.abstractThe Southern Ocean is a major sink of anthropogenic CO2 and an important foraging area for top trophic level consumers. However, iron limitation sets an upper limit to primary productivity. Here we report on a considerably dense late summer phytoplankton bloom spanning 9000 km2 in the open ocean of the eastern Weddell Gyre. Over its 2.5 months duration, the bloom accumulated up to 20 g C m−2 of organic matter, which is unusually high for Southern Ocean open waters. We show that, over 1997–2019, this open ocean bloom was likely driven by anomalies in easterly winds that push sea ice southwards and favor the upwelling of Warm Deep Water enriched in hydrothermal iron and, possibly, other iron sources. This recurring open ocean bloom likely facilitates enhanced carbon export and sustains high standing stocks of Antarctic krill, supporting feeding hot spots for marine birds and baleen whales.
dc.language.isoenen_US
dc.relation.urihttps://www.nature.com/articles/s41467-023-36992-1en_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subject.otherPrimary productionen_US
dc.subject.otherPhytoplankton bloomen_US
dc.titleWind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre.en_US
dc.typeJournal Contributionen_US
dc.bibliographicCitation.issue1303en_US
dc.bibliographicCitation.titleNature Communicationsen_US
dc.bibliographicCitation.volume14en_US
dc.description.notesChallenge 4. 9en_US
dc.description.statusPublisheden_US
refterms.dateFOA2023-09-23T20:34:18Z
html.description.abstractThe Southern Ocean is a major sink of anthropogenic CO2 and an important foraging area for top trophic level consumers. However, iron limitation sets an upper limit to primary productivity. Here we report on a considerably dense late summer phytoplankton bloom spanning 9000 km2 in the open ocean of the eastern Weddell Gyre. Over its 2.5 months duration, the bloom accumulated up to 20 g C m−2 of organic matter, which is unusually high for Southern Ocean open waters. We show that, over 1997–2019, this open ocean bloom was likely driven by anomalies in easterly winds that push sea ice southwards and favor the upwelling of Warm Deep Water enriched in hydrothermal iron and, possibly, other iron sources. This recurring open ocean bloom likely facilitates enhanced carbon export and sustains high standing stocks of Antarctic krill, supporting feeding hot spots for marine birds and baleen whales.en_US
dc.description.refereedRefereeden_US


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Attribution 4.0 International
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