CT14A:
Abiotic and Biotic Retention, Recycling, and Remineralization of Metals in the Ocean II Posters


Session ID#: 23502

Session Description:
Trace metals shape both the biogeochemical functioning and the biological structure of oceanic provinces, and considerable insight into trace metal distributions have been gleaned from international programs like GEOTRACES. To date, observational and modelling efforts have mainly focused on modes of external metal supply from different sources. While this has yielded important advances, we also know that metals undergo key internal transformations such as biotic uptake, scavenging, recycling, and remineralization. These internal transformations play crucial roles in shaping the biogeochemical cycling of metals by governing their bioavailability, oceanic distributions, and residence times. In this session we solicit presentations that address key questions regarding the abiotic and biotic processes regulating (i) the retention timescale for metals in the upper ocean, (ii) surface ocean metal recycling and bioavailability, (iii) the subsurface regeneration length scales for metals in the ocean interior, and (iv) the role of mineral versus organic characteristics of sinking particles on metal scavenging. We also seek presentations that provide insights into how these key questions are mediated by differing physico-chemical and microbial processes in contrasting ocean settings. Presentations showing insights from the diverse standpoints of biogeochemical oceanography and molecular ecology, from both observational and modelling perspectives, are strongly encouraged.
Primary Chair:  Philip W Boyd, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia
Co-chairs:  Kristen N Buck, University of South Florida Tampa, College of Marine Science, Tampa, FL, United States; University of South Florida, College of Marine Science, St. Petersburg, FL, United States, Jessica N Fitzsimmons, Texas A&M University College Station, Department of Oceanography, College Station, TX, United States and Alessandro Tagliabue, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom
Moderators:  Kristen N Buck, University of South Florida, St, Bermuda, Alessandro Tagliabue, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom and Jessica N Fitzsimmons, Texas A&M University College Station, Department of Oceanography, College Station, TX, United States
Student Paper Review Liaison:  Kristen N Buck, University of South Florida, St, Bermuda
Index Terms:

4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4807 Chemical speciation and complexation [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4875 Trace elements [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • BN - Biogeochemistry and Nutrients
  • MM - Microbiology and Molecular Ecology
  • OM - Ocean Modeling

Abstracts Submitted to this Session:

Evaluation of rare earth elements in groundwater of Gujarat States, India (302488)
Ketankumar Joitaram Panchal, Sardar Patel University, B.R.D.School of Biosciences, Surat, India, Ankitkumar I Parekh, Shraddha Food and Bevarages, R&D, Anand, India, Pranavkumar I Parekh, Jeumont electric India Pvt Ltd., Vadodara, India and Bhumika T Gajjar, Dr. Sajay laboratories, Anand, India
Isotopic Composition of Lead in Bivalve’s Shells by LA-ICP-MS. (304388)
Igor Araujo Pessoa, UERJ Rio de Janeiro State University, Rio De Janeiro, Brazil and Mauro Cesar Geraldes, UERJ Rio de Janeiro State University, Geology, Rio De Janeiro, Brazil
Using Flow-Field Flow Fractionation coupled with Inductively Coupled Plasma Mass Spectrometry to examine the physicochemical speciation of marine iron colloids in coastal Maine seawater (305615)
Kimber De Salvo, Texas A&M University College Station, Oceanography, College Station, TX, United States, Mark L Wells, University of Maine, School of Marine Sciences, Orono, ME, United States and Jessica N Fitzsimmons, Texas A & M University College Station, Oceanography, College Station, TX, United States
Importance of Coccolithophore-associated Organic Biopolymers for Fractionating Particle-reactive Radionuclides (234Th, 233Pa, 210Pb, 210Po and 7Be) in the Ocean (306784)
Peng Lin1, Chen Xu1, Saijin Zhang1, Kathleen Schwehr1, Luni Sun1, Laura Bretherton2, Antonietta Quigg2 and Peter H Santschi1, (1)Texas A&M University at Galveston, Department of Marine Sciences, Galveston, TX, United States, (2)Texas A&M University at Galveston, Marine Biology, Galveston, TX, United States
Particulate Cd isotopes demonstrate a dynamic oceanic Cd cycle (307429)
David Janssen1,2, Wafa Abouchami3, Stephen J G Galer2, Kathryn Purdon1 and Jay T. Cullen4, (1)University of Victoria, Victoria, BC, Canada, (2)Max Planck Institute for Chemistry, Mainz, Germany, (3)Institut de Physique du Globe de Paris, Paris, France, (4)University of Victoria, School of Earth and Ocean Sciences, Victoria, BC, Canada
Iron Geochemistry in Two Contrasting Continental Margin Sediments and Its Impact on Sedimentary Sources of Iron to the Water Column (307922)
David Burdige, Old Dominion University, Dept. of Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States, Tomoko Komada, Romberg Tiburon Center, Tiburon, CA, United States and John Christensen, New England Oceanographic Laboratory, ME, United States
Trace element composition of suspended particulate matter along CLIVAR sections I9N/I8S and I6S: Impact of scavenging on particulate Al distributions in the Southern Ocean (309161)
Pamela M Barrett, University of Washington, Seattle, WA, United States, Joseph A Resing, Joint Institute for the Study of the Atmosphere and Ocean, and NOAA/PMEL, Seattle, WA, United States, Maxime M Grand, University of Southampton, National Oceanography Centre, Ocean and Earth Science, Southampton, United Kingdom, Chris I Measures, University of Hawaii at Manoa, Oceanography, Honolulu, HI, United States and William M Landing, Florida State University, Earth, Ocean, and Atmospheric Science, Tallahassee, FL, United States
Physical and Chemical Characterization of Dissolved Arsenic in the Oligotrophic South China Sea (309706)
Chih-Ping Lee and Liang-Saw Wen, National Taiwan University, Institute of Oceanography, Taipei, Taiwan
Maximum uptake stoichiometry as a key control on differential oceanic nutrient cycles (310396)
Mark Moore, University of Southampton, Southampton, United Kingdom, Raffaele Bernardello, Barcelona Supercomputing Center, Earth Sciences, Barcelona, Spain and Adrian Martin, National Oceanography Centre, United Kingdom
Controls On Barium-Isotope Fractionation During Barite Precipitation (311039)
Julia E Middleton1,2, Maureen E E Auro2,3, Elizabeth M Griffith4 and Tristan J Horner3,5, (1)MIT-WHOI Joint Program in Oceanography, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (2)Woods Hole Oceanographic Institution, NIRVANA Laboratories, Woods Hole, MA, United States, (3)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States, (4)Ohio State University, School of Earth Sciences, Columbus, OH, United States, (5)NIRVANA Laboratories, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Iron isotopic insights into the iron cycle around the Kerguelen Islands. (312305)
Lise Artigue1, Francois Lacan1, Catherine Pradoux1 and Geraldine Sarthou2, (1)LEGOS, University of Toulouse, CNRS, CNES, IRD, UPS, Toulouse, France, (2)LEMAR UMR 6539 CNRS UBO IRD IFREMER, IUEM, Plouzané, France
The relative importance of aeolian, sedimentary, and hydrothermal iron for supporting export production: estimates from an inverse model of the ocean's coupled phosphorus, silicon, and iron cycles (315671)
Benoit Pasquier, University of New South Wales, Sydney, NSW, Australia and Mark Holzer, University of New South Wales, Sydney, Australia
What Controls Fe(II) Concentrations in Surface Seawater? (315692)
Mark James Hopwood1, Julian Gallego Urrea2, Carolina Santana-González3, Eric P. Achterberg1 and David R Turner2, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany, (2)University of Gothenburg, Gothenburg, Sweden, (3)Universidad de Las Palmas de Gran Canaria, Las Palmas de Gran Canaria, Spain
Developing a Novel Data-Based Approach for Trace Metal Modeling (316091)
Saeed Roshan and Timothy DeVries, University of California Santa Barbara, Santa Barbara, CA, United States
Speciation of dissolved copper in North Atlantic along the GEOTRACES GA01 section (317498)
Arthur Gourain1, Pascal Salaun2, Alessandro Tagliabue3, Stan MG van den Berg4, Julia Boutorh5, Marie Cheize5,6, Leonardo Pereira Contreira7, Pascale Lherminier8, Jan-Lukas Menzel Barraqueta9, Hélène Planquette5, Geraldine Sarthou5 and Rachel Shelley10,11, (1)University of Liverpool, Earth Ocean & Ecological Sciences, Liverpool, United Kingdom, (2)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, (3)University of Liverpool, Liverpool, United Kingdom, (4)Univ Liverpool, Liverpool, United Kingdom, (5)IUEM Institut Universitaire Européen de la Mer, LEMAR, Plouzané, France, (6)Laboratoire Cycles Géochimiques et ressources, IFREMER, Plouzané, France, (7)Universidade Federal do Rio Grande, Rio Grande, Brazil, (8)IFREMER, Plouzané, France, (9)GEOMAR, Kiel, Germany, (10)Florida State University, Earth, Ocean and Atmospheric Science, Tallahassee, FL, United States, (11)LEMAR/UBO, Plouzané, France
Copper - Phospholipid Interaction at Cell Membrane Model Hydrophobic Surfaces (317752)
Marina Mlakar1, Vlado Cuculić1, Sanja Frka Milosavljevic2, Blazenka Gasparovic3 and Sanja Frka Milosavljević, (1)Ruđer Bošković Institute, Division for Marine and Environmental Research, Zagreb, Croatia, (2)National Institute of Chemistry, Analytical Chemistry Laboratory, Ljubljana, Slovenia, (3)Ruder Boskovic Institute, Division for Marine and Environmental Research, Zagreb, Croatia
REE Patterns in the Surface Waters of Todos os Santos Bay and Its Adjacent Seas (318717)
Raíza Lopes Borges Andrade1, Rodrigo Mateus Aguiar Pedreira1 and Vanessa Hatje2, (1)UFBA Federal University of Bahia, Salvador, Brazil, (2)Universidade Federal da Bahia, Química Analítica - CIENAM, Salvador, Brazil
Photochemical Degradation of Copper Ligands in the California Current (320475)
Angel Ruacho and Katherine Barbeau, Scripps Institution of Oceanography, Geosciences Research Division, La Jolla, CA, United States
How do Variations in Iron Distribution and Cycling Affect Biological Productivity across the Subtropical North Atlantic? (320999)
Korinna Kunde1, Neil Wyatt2, David González-Santana3, Lewis Wrightson4, Luke Johnson4, Clare Davis5, Malcolm Woodward6, Claire Mahaffey5 and Maeve C Lohan3, (1)University of Southampton, Southampton, United Kingdom, (2)University of Southampton, United Kingdom, (3)University of Southampton, Earth and Ocean Sciences, National Oceanography Centre, Southampton, United Kingdom, (4)University of Liverpool, Liverpool, United Kingdom, (5)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, (6)Plymouth Marine Laboratory, Plyymouth, United Kingdom
Significant Iron Supply from Oxic Shelf-slope Sediments (321013)
Amber Annett, University of Southampton, Southampton, United Kingdom, Walter Geibert, Alfred Wegener Institute Helmholtz-Center for Polar and Marine Research Bremerhaven, Bremerhaven, Germany, Antony Birchill, Plymouth University, School of Geography, Earth and Environmental Sciences, Plymouth, United Kingdom, Maeve C Lohan, University of Southampton, Earth and Ocean Sciences, National Oceanography Centre, Southampton, United Kingdom, Jo Hopkins, National Oceanography Centre, Marine Physics and Ocean Climate, Liverpool, United Kingdom, William B Homoky, University of Oxford, Department of Earth Sciences, United Kingdom, Angela Milne, University of Plymouth, Plymouth, United Kingdom, Malcolm Woodward, Plymouth Marine Laboratory, Plyymouth, United Kingdom, Peter John Statham, Univ Southampton, Southampton, United Kingdom, Dagmara Rusiecka, GEOMAR Helmholtz Centre for Ocean Research, Chemistry, Kiel, Germany, Alexander Llewellyn Thomas, University of Edinburgh, Edinburgh, United Kingdom, Eric P Achterberg, GEOMAR Helmholtz-Zentrum für Ozeanforschung, Kiel, Germany and Jonathan Sharples, University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom
Seasonal Cycling and Off-shelf Transport of Iron from an Oxic Shelf Margin (321874)
Angela Milne1, Antony Birchill2, Simon Ussher3, Paul J Worsfold2 and Maeve C Lohan4, (1)Plymouth University, School of Geography, Earth and Environmental Sciences, Plymouth, PL4, United Kingdom, (2)Plymouth University, School of Geography, Earth and Environmental Sciences, Plymouth, United Kingdom, (3)Plymouth University, Plymouth, United Kingdom, (4)University of Southampton, Earth and Ocean Sciences, National Oceanography Centre, Southampton, United Kingdom
Trace Metal Distribution in Remote Rivers in the Canadian Arctic Archipelago: Geochemical Characterization of a Pristine Environment (322531)
Manuel Colombo, University of British Columbia, Department of Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada, Kristina Brown, Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States and Kristin J Orians, Univ British Columbia, Department of Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada
Scavenging is key to the marine cycling of Zn and Zn isotopes in the modern ocean and geological record (324281)
Seth John1, Thomas S Weber2, Paulina Pinedo-Gonzalez1, Alessandro Tagliabue3 and Timothy DeVries4, (1)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (2)University of Rochester, Rochester, NY, United States, (3)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, United Kingdom, (4)University of California Santa Barbara, Santa Barbara, CA, United States
Distribution of trace metals in surface North Pacific Ocean using a new ultra-high resolution sampling robot (324697)
Paulina Pinedo-Gonzalez1, Nicholas J Hawco1, Seth John1, E. Virginia Armbrust2, Francois Ribalet2 and Sara Ferrón3, (1)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (2)University of Washington, School of Oceanography, Seattle, WA, United States, (3)University of Hawaii, Honolulu, HI, United States
Distribution of Particulate Rare Earth Elements in the Western Arctic (324753)
Phoebe J Lam1, Yang Xiang1, Kira Mizell2 and Jong-Mi Lee3, (1)University of California Santa Cruz, Department of Ocean Sciences, Santa Cruz, CA, United States, (2)University of California Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States, (3)University of California Santa Cruz, Santa Cruz, CA, United States

See more of: Chemical Tracers, Organic Matter and Trace Elements