Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre

This study reports a dense, late summer phytoplankton bloom in the Southern Ocean that accumulated unusually high levels of organic matter and supported feeding hot spots for birds and whales. The authors show that this recurring open ocean bloom is driven by anomalies in easterly winds that push se...

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Main Authors: Sebastien Moreau, Tore Hattermann, Laura de Steur, Hanna M. Kauko, Heidi Ahonen, Murat Ardelan, Philipp Assmy, Melissa Chierici, Sebastien Descamps, Tilman Dinter, Tone Falkenhaug, Agneta Fransson, Eirik Grønningsæter, Elvar H. Hallfredsson, Oliver Huhn, Anais Lebrun, Andrew Lowther, Nico Lübcker, Pedro Monteiro, Ilka Peeken, Alakendra Roychoudhury, Magdalena Różańska, Thomas Ryan-Keogh, Nicolas Sanchez, Asmita Singh, Jan Henrik Simonsen, Nadine Steiger, Sandy J. Thomalla, Andre van Tonder, Jozef M. Wiktor, Harald Steen
Format: Article
Language:English
Published: Nature Portfolio 2023-03-01
Series:Nature Communications
Online Access:https://doi.org/10.1038/s41467-023-36992-1
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author Sebastien Moreau
Tore Hattermann
Laura de Steur
Hanna M. Kauko
Heidi Ahonen
Murat Ardelan
Philipp Assmy
Melissa Chierici
Sebastien Descamps
Tilman Dinter
Tone Falkenhaug
Agneta Fransson
Eirik Grønningsæter
Elvar H. Hallfredsson
Oliver Huhn
Anais Lebrun
Andrew Lowther
Nico Lübcker
Pedro Monteiro
Ilka Peeken
Alakendra Roychoudhury
Magdalena Różańska
Thomas Ryan-Keogh
Nicolas Sanchez
Asmita Singh
Jan Henrik Simonsen
Nadine Steiger
Sandy J. Thomalla
Andre van Tonder
Jozef M. Wiktor
Harald Steen
author_facet Sebastien Moreau
Tore Hattermann
Laura de Steur
Hanna M. Kauko
Heidi Ahonen
Murat Ardelan
Philipp Assmy
Melissa Chierici
Sebastien Descamps
Tilman Dinter
Tone Falkenhaug
Agneta Fransson
Eirik Grønningsæter
Elvar H. Hallfredsson
Oliver Huhn
Anais Lebrun
Andrew Lowther
Nico Lübcker
Pedro Monteiro
Ilka Peeken
Alakendra Roychoudhury
Magdalena Różańska
Thomas Ryan-Keogh
Nicolas Sanchez
Asmita Singh
Jan Henrik Simonsen
Nadine Steiger
Sandy J. Thomalla
Andre van Tonder
Jozef M. Wiktor
Harald Steen
author_sort Sebastien Moreau
collection DOAJ
description This study reports a dense, late summer phytoplankton bloom in the Southern Ocean that accumulated unusually high levels of organic matter and supported feeding hot spots for birds and whales. The authors show that this recurring open ocean bloom is driven by anomalies in easterly winds that push sea ice southwards and favour the upwelling of deep waters enriched in hydrothermal iron.
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spelling doaj.art-c4c9e6ae595d4b25bde3046024c97c182023-03-22T11:43:45ZengNature PortfolioNature Communications2041-17232023-03-0114111210.1038/s41467-023-36992-1Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell GyreSebastien Moreau0Tore Hattermann1Laura de Steur2Hanna M. Kauko3Heidi Ahonen4Murat Ardelan5Philipp Assmy6Melissa Chierici7Sebastien Descamps8Tilman Dinter9Tone Falkenhaug10Agneta Fransson11Eirik Grønningsæter12Elvar H. Hallfredsson13Oliver Huhn14Anais Lebrun15Andrew Lowther16Nico Lübcker17Pedro Monteiro18Ilka Peeken19Alakendra Roychoudhury20Magdalena Różańska21Thomas Ryan-Keogh22Nicolas Sanchez23Asmita Singh24Jan Henrik Simonsen25Nadine Steiger26Sandy J. Thomalla27Andre van Tonder28Jozef M. Wiktor29Harald Steen30Norwegian Polar InstituteNorwegian Polar InstituteNorwegian Polar InstituteNorwegian Polar InstituteNorwegian Polar InstituteNTNU, Trondheim UniversityNorwegian Polar InstituteInstitute of Marine ResearchNorwegian Polar InstituteAlfred Wegener InstituteInstitute of Marine ResearchNorwegian Polar InstituteNorwegian Polar InstituteInstitute of Marine ResearchInstitute of Environmental Physics, University of BremenLaboratoire d’Océanographie de Villefranche, Sorbonne Université, CNRSNorwegian Polar InstituteDepartment of Biology, University of New MexicoSouthern Ocean Carbon and Climate Observatory, CSIRAlfred Wegener InstituteDepartment of Earth Sciences, Stellenbosch UniversityInstitute of Oceanology PANSouthern Ocean Carbon and Climate Observatory, CSIRNTNU, Trondheim UniversitySouthern Ocean Carbon and Climate Observatory, CSIRInstitute of Marine ResearchGeophysical Institute, University of Bergen and Bjerknes Centre for Climate ResearchSouthern Ocean Carbon and Climate Observatory, CSIRMammal Research Institute, Department of Zoology and Entomology, University of PretoriaInstitute of Oceanology PANNorwegian Polar InstituteThis study reports a dense, late summer phytoplankton bloom in the Southern Ocean that accumulated unusually high levels of organic matter and supported feeding hot spots for birds and whales. The authors show that this recurring open ocean bloom is driven by anomalies in easterly winds that push sea ice southwards and favour the upwelling of deep waters enriched in hydrothermal iron.https://doi.org/10.1038/s41467-023-36992-1
spellingShingle Sebastien Moreau
Tore Hattermann
Laura de Steur
Hanna M. Kauko
Heidi Ahonen
Murat Ardelan
Philipp Assmy
Melissa Chierici
Sebastien Descamps
Tilman Dinter
Tone Falkenhaug
Agneta Fransson
Eirik Grønningsæter
Elvar H. Hallfredsson
Oliver Huhn
Anais Lebrun
Andrew Lowther
Nico Lübcker
Pedro Monteiro
Ilka Peeken
Alakendra Roychoudhury
Magdalena Różańska
Thomas Ryan-Keogh
Nicolas Sanchez
Asmita Singh
Jan Henrik Simonsen
Nadine Steiger
Sandy J. Thomalla
Andre van Tonder
Jozef M. Wiktor
Harald Steen
Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre
Nature Communications
title Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre
title_full Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre
title_fullStr Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre
title_full_unstemmed Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre
title_short Wind-driven upwelling of iron sustains dense blooms and food webs in the eastern Weddell Gyre
title_sort wind driven upwelling of iron sustains dense blooms and food webs in the eastern weddell gyre
url https://doi.org/10.1038/s41467-023-36992-1
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