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Journal Articles Oceanography Year : 2023

Hot Vents Beneath an Icy Ocean: The Aurora Vent Field, Gakkel Ridge, Revealed

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Eva Ramirez-Llodra
  • Function : Author
Claudio Argentino
  • Function : Author
Maria Baker
  • Function : Author
Antje Boetius
  • Function : Author
Carolina Costa
  • Function : Author
Håkon Dahle
  • Function : Author
Emily Denny
  • Function : Author
Pierre-Antoine Dessandier
  • Function : Author
Mari Eilertsen
  • Function : Author
Benedicte Ferre
  • Function : Author
Christopher German
  • Function : Author
Kevin Hand
  • Function : Author
Ana Hilário
  • Function : Author
Lawrence Hislop
  • Function : Author
John Jamieson
  • Function : Author
Achim Mall
  • Function : Author
Giuliana Panieri
  • Function : Author
Autun Purser
  • Function : Author
Sofia Ramalho
  • Function : Author
Eoghan Reeves
  • Function : Author
Leighton Rolley
  • Function : Author
Samuel Pereira
  • Function : Author
Pedro Ribeiro
  • Function : Author
Muhammed Fatih Sert
  • Function : Author
Ida Steen
  • Function : Author
Marie Stetzler
  • Function : Author
Runar Stokke
  • Function : Author
Lissette Victorero
  • Function : Author
Francesca Vulcano
  • Function : Author
Stig Vågenes
  • Function : Author
Kate Waghorn
  • Function : Author
Stefan Buenz
  • Function : Author

Abstract

Evidence of hydrothermal venting on the ultra-slow spreading Gakkel Ridge in the Central Arctic Ocean has been available since 2001, with first visual evidence of black smokers on the Aurora Vent Field obtained in 2014. But it was not until 2021 that the first ever remotely operated vehicle (ROV) dives to hydrothermal vents under permanent ice cover in the Arctic were conducted, enabling the collection of vent fluids, rocks, microbes, and fauna. In this paper, we present the methods employed for deep-sea ROV operations under drifting ice. We also provide the first description of the Aurora Vent Field, which includes three actively venting black smokers and diffuse flow on the Aurora mound at ~3,888 m depth on the southern part of the Gakkel Ridge (82.5°N). The biological communities are dominated by a new species of cocculinid limpet, two small gastropods, and a melitid amphipod. The ongoing analyses of Aurora Vent Field samples will contribute to positioning the Gakkel Ridge hydrothermal vents in the global biogeographic puzzle of hydrothermal vents.
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Dates and versions

hal-03876877 , version 1 (29-11-2022)

Licence

Attribution - CC BY 4.0

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Eva Ramirez-Llodra, Claudio Argentino, Maria Baker, Antje Boetius, Carolina Costa, et al.. Hot Vents Beneath an Icy Ocean: The Aurora Vent Field, Gakkel Ridge, Revealed. Oceanography, 2023, 36 (1), ⟨10.5670/oceanog.2023.103⟩. ⟨hal-03876877⟩
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