OB014
Linking Hydrothermal Iron Fluxes to Surface Productivity, Nutrient Uptake and Carbon Sequestration

Session ID#: 257900

Session Description:
Linking Hydrothermal Iron Fluxes to Surface Productivity, Nutrient Uptake and Carbon Sequestration

 

Hydrothermal iron (Fe) inputs are increasingly recognized as a vital source of bioavailable iron supporting phytoplankton and microbial growth in areas of the ocean where Fe inputs are minimal and trace-metal availability is limiting. Unlike atmospheric dust, hydrothermal sources are located throughout the global Ocean with distal Fe transport facilitated through its stabilization by organic ligands. This session will highlight physical and biogeochemical mechanisms that deliver hydrothermal Fe from mid-ocean ridges and submarine volcanoes to the euphotic zone and will examine the role of hydrothermal Fe in modulating surface productivity, plankton diversity, nutrient uptake, and carbon sequestration in these regions. We invite presentations and posters that showcase new observational, experimental, and modeling approaches aimed at quantifying hydrothermal Fe fluxes, tracing their transport pathways, and evaluating their ecological and biogeochemical impacts on community structure, productivity and the ocean carbon cycle.

Co-Sponsor(s):
  • Ocean Biology and Biogeochemistry -
  • Physical-Biological Interactions -
Index Terms:

3017 Hydrothermal systems [MARINE GEOLOGY AND GEOPHYSICS]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4855 Phytoplankton [OCEANOGRAPHY: BIOLOGICAL]
4875 Trace elements [OCEANOGRAPHY: CHEMICAL]
Student/Early Career Chair:  Amanda Vanegas Ledesma, Stanford University, Earth System Sciences, Stanford, United States
Primary Chair:  Matthew M Mills, Stanford University, Earth System Science, Stanford, United States
Co-chairs:  Pamela Barrett, University of Washington and NOAA/PMEL, Cooperative Institute for Climate, Oceans, and Ecosystem Studies, Seattle, United States and Sophie Bonnet, Aix Marseille Univ, Université de Toulon, CNRS, IRD, MIO UM 110, Marseille, France
 
Helium isotope ratios and dissolved methane concentrations in a massive hydrothermal plume observed at the Australian-Antarctic Ridge in the Southern Ocean (2007798)
Tamara Baumberger1, Pamela Barrett2, Anson MacKenzie Antriasian3, Sharon L Walker4, Susan G Merle5, Patrick Monreal6, Nathaniel J. Buck7, Jessalyn E Davis6, Elise Herzfeld6, Hope V Jerris8, Kevin R Arrigo9, Joseph A Resing10 and Randelle M Bundy6, (1)Oregon State University, Cooperative Institute for Marine Resource & Ecosystem Studies, Newport, United States, (2)University of Washington and NOAA/PMEL, Cooperative Institute for Climate, Oceans, and Ecosystem Studies, Seattle, United States, (3)Oregon State University, Newport, United States, (4)NOAA/PMEL, Seattle, United States, (5)Oregon State University, Cooperative Institute for Marine Ecosystem and Resource Studies, Newport, United States, (6)University of Washington, School of Oceanography, Seattle, United States, (7)University of Washington Seattle Campus, School of Oceanography, Seattle, United States, (8)Middlebury College, Earth and Climate Sciences, Middlebury, VT, United States, (9)Stanford University, Earth System Science, Stanford, United States, (10)University of Washington Cooperative Institute for Climate, Ocean & Ecosystem Studies; NOAA Pacific Marine Environmental Laboratory, Seattle, United States
 
Diffuse venting in the crater of a shallow seamount inputs stable, organically-complexed dissolved iron to the upper water column of the Australian-Antarctic Ridge bloom region (2011868)
Patrick Monreal1,2, Pamela Barrett3, Tamara Baumberger4,5, Nathaniel J. Buck6, Jessalyn E Davis1, Sophie E Jenness6, Stevie Walker7, Hope V Jerris8, Elise Herzfeld1, Gert van Dijken9, Kevin R Arrigo9, Randelle M Bundy1 and Joseph A Resing6,10, (1)University of Washington, School of Oceanography, Seattle, United States, (2)University of Washington, Astrobiology Program, Seattle, United States, (3)University of Washington and NOAA/PMEL, Cooperative Institute for Climate, Oceans, and Ecosystem Studies, Seattle, United States, (4)Oregon State University, Corvallis, United States, (5)NOAA Pacific Marine Environmental Laboratory, Newport, Oregon, United States, (6)University of Washington Seattle Campus, School of Oceanography, Seattle, United States, (7)University of Washington, Oceanography, Seattle, United States, (8)Middlebury College, Earth and Climate Sciences, Middlebury, VT, United States, (9)Stanford University, Earth System Science, Stanford, United States, (10)NOAA Pacific Marine Environmental Laboratory, Seattle, United States
 
Identifying Manganese Inputs to the Australian-Antarctic Ridge Phytoplankton Bloom During a Suspected Hydrothermal Eruption (2016798)
Hope V Jerris1, Pamela Barrett2, Elise Herzfeld3, Christina Stuhl3,4, Patrick Monreal3, Jessalyn E Davis3, Casey Schine5, Kevin R Arrigo6, Tamara Baumberger7, Randelle M Bundy3 and Joseph A Resing2,3, (1)Middlebury College, Earth and Climate Sciences, Middlebury, VT, United States, (2)University of Washington and NOAA/PMEL, Cooperative Institute for Climate, Oceans, and Ecosystem Studies, Seattle, United States, (3)University of Washington, School of Oceanography, Seattle, United States, (4)University of Washington, Department of Earth and Space Sciences, Seattle, United States, (5)Middlebury College, Biology, Middlebury, United States, (6)Stanford University, Earth System Science, Stanford, United States, (7)NOAA/PMEL & Oregon State University, Newport, United States
 
Addition of hydrothermally influenced water relieves iron limitation in surface waters of the Australian-Antarctic Ridge (2021767)
James Lauer1, Matthew M Mills1, Patrick Monreal2, Pamela Barrett3, Nathaniel J. Buck4, Jessalyn E Davis2, Gert van Dijken1, Sophie E Jenness4, Stevie Walker5, Tamara Baumberger6, Randelle M Bundy2, Joseph A Resing4 and Kevin R Arrigo1, (1)Stanford University, Earth System Science, Stanford, United States, (2)University of Washington, School of Oceanography, Seattle, United States, (3)University of Washington and NOAA/PMEL, Cooperative Institute for Climate, Oceans, and Ecosystem Studies, Seattle, United States, (4)University of Washington Seattle Campus, School of Oceanography, Seattle, United States, (5)University of Washington, Oceanography, Seattle, United States, (6)University of Bergen, Bergen, Norway
 
Vertical extent and mixing of hydrothermal plumes in a changing Arctic (2024054)
Maren Walter1, Jonathan Mette1 and Christian Mertens2, (1)University of Bremen, Institute of Environmental Physics, MARUM, Bremen, Germany, (2)University of Bremen, Bremen, Germany
 
Tracing Hydrothermal processes using Isotopic signatures (2026306)
Swastika Bhaumik, Faculty of Geosciences and MARUM, University of Bremen, Bremen, Germany, Anette Meixner, Faculty of Geosciences and MARUM,University of Bremen, Bremen, Germany, Eva Meckel, Constructor University Bremen, Germany, Department of Physics and Earth Sciences, Bremen, Germany, Andrea Koschinsky, Constructor University, Department of Physics and Earth Sciences, Bremen, Germany and Simone Kasemann, University of Bremen, Faculty of Geosciences, Bremen, Germany
 
A mesoscale approach to understanding hydrothermal Fe particle dynamics at the Juan de Fuca Ridge (2030965)
Kristie Dick1, Mary Dinneen2, Christopher R German3, James W Moffett4, Alan M Seltzer5, Guangyu Xu6, William J Jenkins3 and Jessica N Fitzsimmons1, (1)Texas A&M University College Station, Oceanography, College Station, United States, (2)University of Southern California, Department of Biological Sciences, Los Angeles, United States, (3)WHOI, Woods Hole, MA, United States, (4)University of Southern California, Los Angeles, CA, United States, (5)Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, United States, (6)Applied Physics Laboratory University of Washington, Seattle, WA, United States
 
Surface Phytoplankton Communities Over the Australian-Antarctic Ridge in Relation to Hydrothermal Inputs. (2040293)
Matthew M Mills1, Amanda Vanegas Ledesma2, Pamela Barrett3, James Lauer1, Patrick Monreal4, Nathaniel J Buck5, Jessalyn E Davis4, Gert van Dijken1, Lemona Yingzhuo Niu1, Tamara Baumberger6, Randelle M Bundy4, Joseph Resing7, Leif N Thomas8 and Kevin R Arrigo1, (1)Stanford University, Earth System Science, Stanford, United States, (2)Stanford University, Earth System Sciences, Stanford, United States, (3)University of Washington and NOAA/PMEL, Cooperative Institute for Climate, Oceans, and Ecosystem Studies, Seattle, United States, (4)University of Washington, School of Oceanography, Seattle, United States, (5)Oregon State University, Newport, United States, (6)University of Bergen, Bergen, Norway, (7)University of Washington, Cooperative Institute for Climate, Ocean, and Ecosystem Studies, Seattle, United States, (8)Stanford University, Stanford, CA, United States
 
Iron partitioning and geochemical characteristics of particles from a diffuse vent field and eruptive plume along the Australian-Antarctic Ridge impacting near-surface waters (2040337)
Pamela M Barrett1, Tamara Baumberger2, Sophie E Jenness3, Jessalyn E Davis4, Patrick Monreal4, Stevie Walker5, Nathaniel J. Buck3, Kevin R Arrigo6, Randelle M Bundy4 and Joseph Resing1, (1)University of Washington, Cooperative Institute for Climate, Ocean, and Ecosystem Studies, Seattle, United States, (2)NOAA/PMEL & Oregon State University, Newport, United States, (3)University of Washington Seattle Campus, School of Oceanography, Seattle, United States, (4)University of Washington, School of Oceanography, Seattle, United States, (5)University of Washington, Oceanography, Seattle, United States, (6)Stanford University, Earth System Science, Stanford, United States
 
Linking Physical and Geochemical Processes at Trans-Atlantic Geotraverse (TAG): A Modeling Approach to Tracer Transport and Iron Cycling (2040802)
Maria Gabriela Escobar Franco1, Clément Vic1, Thomas Gorgues1, Jonathan Gula1 and Cecile Cathalot2, (1)Laboratoire d’Océanographie Physique et Spatiale (LOPS), University of Brest, CNRS, Ifremer, IRD, IUEM, Plouzané, France, (2)Geo-Ocean, University of Brest, CNRS, Ifremer, IRD, IUEM, Plouzané, France
 
Highlights from the 2024-2025 Bloom Raiders Cruise to the Australian-Antarctic Ridge (2040977)
Kevin R Arrigo1, Joseph A Resing2, Randelle M Bundy3, Tamara Baumberger4, Leif N Thomas5, Pamela Barrett6, Gert van Dijken1, Matthew M Mills1, Patrick Monreal3, Amanda Vanegas Ledesma7, Jessalyn E Davis3, Lemona Yingzhuo Niu1, Nathaniel J. Buck2 and Stevie Walker8, (1)Stanford University, Earth System Science, Stanford, United States, (2)University of Washington Seattle Campus, School of Oceanography, Seattle, United States, (3)University of Washington, School of Oceanography, Seattle, United States, (4)University of Bergen, Bergen, Norway, (5)Stanford University, Stanford, CA, United States, (6)University of Washington and NOAA/PMEL, Cooperative Institute for Climate, Oceans, and Ecosystem Studies, Seattle, United States, (7)Stanford University, Earth System Sciences, Stanford, United States, (8)University of Washington, Oceanography, Seattle, United States
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