CT34B:
Trace Metal Speciation in Seawater: Measurements, Modeling, and Impact on Marine Biogeochemistry III Posters


Session ID#: 9231

Session Description:
Global change processes, in particular ocean acidification, are changing the chemistry of seawater. The carbon dioxide system and trace metal speciation are expected to be among the chemical components of seawater most strongly affected by global change processes. The distribution and identity of organic metal complexing ligands in the marine system, and modelling of the chemical speciation using updated parameters, play an important role in understanding the changes that take place and in projecting future changes. This session builds on two SCOR working groups : WG139 which is focused on organic metal-binding ligands; and WG145 which is focused on modelling metal speciation in seawater. One aspect of metal speciation that is receiving particular attention is the bioavailability of trace metals, with extensive measurement programmes on the complexation of bioactive trace metals currently under way, in particular within the GEOTRACES program. This work is producing exciting new field data that will benefit from improved speciation modelling and additional measurements. We invite contributions on the identification, distribution and provenance of organic ligands in the marine environment, the modelling of inorganic and organic metal speciation, and linkages of trace metal speciation with ocean acidification and other factors of climate change.
Primary Chair:  David R Turner, University of Gothenburg, Gothenburg, Sweden
Chairs:  Stan MG van den Berg, University of Liverpool, Liverpool, L69, United Kingdom, Sylvia Gertrud Sander, University of Otago, Dunedin, New Zealand, Kristen N Buck, University of South Florida Tampa, College of Marine Science, Tampa, FL, United States, Eric P. Achterberg, Geomar - Hemholtz Centre for Ocean Research, Chemical Oceanography, Kiel, Germany, Peter L Morton, National High Magnetic Field Laboratory, Geochemistry, Tallahassee, FL, United States, Rachel Shelley, University of Western Brittany, Brest, France and Christian Schlosser, GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany
Moderators:  David R Turner, University of Gothenburg, Gothenburg, Sweden, Stan MG van den Berg, University of Liverpool, Liverpool, L69, United Kingdom, Rachel Shelley, University of Western Brittany, Brest, France and Christian Schlosser, GEOMAR Helmholtz Centre for Ocean Research Kiel, Chemical Oceanography, Kiel, Germany
Student Paper Review Liaison:  Rachel Shelley, University of Western Brittany, Brest, France
Index Terms:

4807 Chemical speciation and complexation [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4835 Marine inorganic chemistry [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Co-Sponsor(s):
  • B - Biogeochemistry and Nutrients
  • EC - Estuarine and Coastal

Abstracts Submitted to this Session:

 
CT34B-0181
Selenium Cycling in Low Oxygen Waters of the Equatorial Pacific Ocean (84406)
Zoe Rizzo Wambaugh and Gregory A Cutter, Old Dominion University, Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States
 
CT34B-0182
Dissolved Low-Molecular Weight Thiol Concentrations from the U.S. GEOTRACES North Atlantic Ocean Zonal Transect (86895)
Carl H Lamborg, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
 
CT34B-0183
Dissolved Strontium and Barium in Fresh and Saltwater: a 2-year Study in the Calcasieu River to the Gulf of Mexico (87749)
Songjie He, Louisiana State University, Baton Rouge, LA, United States and Yi-Jun Xu, Louisiana State University, School of Renewable Natural Resources, Baton Rouge, LA, United States
 
CT34B-0184
U.S. GEOTRACES: Distribution of Mercury Species in the Western Arctic Ocean (87736)
Alison M Agather1, Chad R Hammerschmidt1, Carl H Lamborg2 and Katlin L Bowman3, (1)Wright State University Main Campus, Dayton, OH, 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
 
CT34B-0185
Distributions and Geochemical Cycles of Platinum in Estuaries and Rivers of Tokyo and Otsuchi Areas, Japan (88122)
Asami Suzuki Mashio, Tokyo University, Japan, Hajime Obata, The University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan, Hirofumi Tazoe, Hirosaki University, Aomori, Japan and Toshitaka Gamo, University of Tokyo, Bunkyo-ku, Japan
 
CT34B-0186
Sampling in the Middle Adriatic Sea – Relations Between Mercury and Microbial Species (87698)
Igor Zivkovic1, Milena Horvat1, Mladen Solic2, Joze Kotnik1 and Vesna Fajon1, (1)Jozef Stefan Institute, Ljubljana, Slovenia, (2)Institute of Oceanography and Fisheries, Split, Croatia
 
CT34B-0187
Colloidal Pumping as a Removal Process of Dissolved Iron: a Model Study (89307)
Kazuhiro Misumi1, Adrian Burd2, Matthew C Long3, Jefferson Keith Moore4, Keith T Lindsay5, Daisuke Tsumune1 and Takaki Tsubono1, (1)Central Research Institute of Electric Power Industry, Abiko, Japan, (2)University of Georgia, Athens, GA, United States, (3)National Center for Atmospheric Research, Climate and Global Dynamics, Boulder, CO, United States, (4)University of California Irvine, Department of Earth System Science, Irvine, CA, United States, (5)National Center for Atmospheric Research, Boulder, CO, United States
 
CT34B-0188
Aluminum and Manganese Distributions in the Solomon Sea: Results from the 2012 PANDORA Cruise (90442)
Susanna Marie Michael, University of Washington, Oceanography, Seattle, WA, United States, Joseph A Resing, Joint Institute for the Study of the Atmosphere and Ocean, and NOAA/PMEL, Seattle, WA, United States, Catherine Jeandel, Université de Toulouse, (IRD, CNES, CNRS, UPS), Toulouse, France, Toulouse, France and Francois Lacan, CNRS-LEGOS, Toulouse, France
 
CT34B-0189
Dissolved zinc and its speciation in the coastal hydrothermal area of Japan (88419)
Hajime Obata1, Taejin Kim1, Toshitaka Gamo2 and Shigenobu Takeda3, (1)Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan, (2)University of Tokyo, Bunkyo-ku, Japan, (3)Nagasaki University, Nagasaki, Japan
 
CT34B-0190
Mercury profiles in the Arctic Ocean near the Lomonosov Ridge (93616)
Jeff Jeremiason, Gustavus Adolphus College, St. Peter, MN, United States and Katarina Gårdfeldt, Chalmers University of Technology, Centre for Environment and Sustainability, GMV, Gothenburg, Sweden
 
CT34B-0191
Whether metal (Pb, Cd, Zn) binding property of natural organic matter is source-dependent--A study based on spectroscopy, potentiometry, and voltammetry (88504)
Weibin Chen, Trent University, Environmental and Life Science Program, Peterborough, ON, Canada, Celine Gueguen, Trent University, Department of Chemistry, Peterborough, ON, Canada and Scott Smith, Wilfrid Laurier University, Department of Chemistry and biochemistry, Waterloo, ON, Canada
 
CT34B-0192
Distribution of Bioactive Trace Metals (Fe, Co, Ni, Cu and Zn) in the semiarid Kuwait Bay, stressed by natural and anthropogenic processes (90150)
Turki Fahad Al-Said1, Tanuspong Pokavanich2, Ali Al-Hashem1 and Raziya Kedila1, (1)Ecosystem Based Managment of marine Resources Program- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait, (2)Coastal Management Program - Environment and Life Science Research Center, Kuwait Institute for Scientific Research, Kuwait City, Kuwait
 
CT34B-0193
Dimethylmercury: A Source of Monomethylmercury in Fog Mechelle Johnson, BS in progress, Math and Science, Kirkwood Community College, Cedar Rapids, IA and Kenneth Coale, PhD, Chemical Oceanography, Moss Landing Marine Laboratories, Moss Landing, CA (93738)
Mechelle Johnson, California State University Monterey Bay, Seaside, CA, United States
 
CT34B-0194
Concurrent Diurnal Variations of High-molecular-weight Dissolved Arsenic and Organic Phosphorus in the Upper Euphotic Zone (88534)
Chih-Ping Lee1, Chia-Yu Cheng1 and Liang-Saw Wen1,2, (1)National Taiwan University, Institute of Oceanography, Taipei, Taiwan, (2)Taiwan Ocean Research Institute, Kaohsiung, Taiwan
 
CT34B-0196
Dissolved gaseous Hg and mercury speciation in the Mediterranean Sea: temporal and spatial trends over 15 years of observations (88721)
Joze Kotnik, Jozef Stefan Institute, Ljubljana, Slovenia
 
CT34B-0197
Determination of the side-reaction coefficient of the trihydroxamate siderophore desferrioxamine B in metal-free seawater (89571)
Johan Schijf, UMCES, Chesapeake Biological Laboratory, Solomons, MD, United States and Shannon M. Burns, University of Georgia, Athens, GA, United States
 
CT34B-0199
Copper Speciation Results From The U.S. GEOTRACES Eastern Tropical South Pacific Cruise (90457)
Angel Ruacho1, Randelle M Bundy2,3, Katherine Barbeau1, Claire Parker4, Kenneth W Bruland4, Saeed Roshan5 and Jingfeng Wu5, (1)Scripps Institution of Oceanography, Geosciences Research Division, La Jolla, CA, United States, (2)University of Washington, School of Oceanography, Seattle, WA, United States, (3)Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States, (4)University of California Santa Cruz, Santa Cruz, CA, United States, (5)University of Miami, Miami, FL, United States
 
CT34B-0200
Iron-Virus Interactions in the Oceans (91366)
Chelsea Cecelia Bonnain1, Kristen N Buck2 and Mya Breitbart1, (1)University of South Florida, College of Marine Science, St Petersburg, FL, United States, (2)University of South Florida Tampa, College of Marine Science, Tampa, FL, United States
 
CT34B-0201
Investigating feedbacks between natural metal-binding organic ligands and particle dissolution in central California coast seawater (92308)
Salvatore Caprara1,2, Jessica N Fitzsimmons3, Daniel Ohnemus4, Benjamin S Twining4, Dreux Chappell5, Robert M Sherrell6, Damiano Monticelli1 and Kristen N Buck7, (1)Università degli Studi dell'Insubria, Scienza ed Alta Tecnologia, Como, Italy, (2)University of South Florida, College of Marine Science, Saint Petersburg, FL, United States, (3)Texas A & M University College Station, Oceanography, College Station, TX, United States, (4)Bigelow Lab for Ocean Sciences, East Boothbay, ME, United States, (5)Old Dominion University, Ocean, Earth and Atmospheric Sciences, Norfolk, VA, United States, (6)Rutgers University, Marine and Coastal Sciences and Earth and Planetary Sciences, New Brunswick, NJ, United States, (7)University of South Florida Tampa, College of Marine Science, Tampa, FL, United States
 
CT34B-0203
Modeling of Complexometric Titration Data: Applications and Implications of New Computational Tools and Thermodynamic Data (93677)
Robert Hudson, University of Illinios, Natural Resources and Environmental Sciences, Urbana, IL, United States, Dario Omanovic, Ruder Boskovic Institute, Center for Marine and Environmental Research, Zagreb, Croatia, Megan Kogut, Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States and Bettina M Voelker, Colorado School of Mines, Chemistry and Geochemistry, Golden, CO, United States
See more of: Chemical Tracers, DOM and Trace Metals