CT44C:
Controls on Trace Metal Biogeochemistry and Physicochemical Speciation in Seawater V Poster
Session ID#: 93291
Session Description:
Trace metals function as essential micronutrients and pollutants in the ocean. Organic complexation, size partitioning, and redox changes of trace elements can be mediated by biological processes including uptake, regeneration, cell lysis, and organic ligand production. Additional processes influencing the production, degradation, and composition of organic matter also play an important role in controlling trace metal distributions, and both vary across environments (e.g. estuaries, open ocean, air-sea-sediment interfaces, hydrothermal systems). In turn, resulting changes in bioavailability and cycling of trace elements governs the function and composition of marine phytoplankton communities. Recent efforts, particularly within GEOTRACES, have expanded the database of trace metal concentrations and physicochemical speciation. This session seeks to link our understanding of biology, organic matter, and trace metal chemistry from molecular to basin-wide scales, from studies related to biologically-mediated transformations of trace elements to the wider processes controlling metal distributions, size partitioning, and fluxes. We welcome submissions highlighting how marine organisms influence the physicochemical speciation of trace elements in seawater, and how changes in trace element chemistry impact the structure and function of marine ecosystems. In addition to observational, experimental and modelling studies, we also invite contributions on the production, degradation, and characterization of metal-binding compounds and colloids.
Co-Sponsor(s):
Primary Chair: Hannah Whitby, University of Liverpool, United Kingdom
Co-chairs: Randelle M Bundy, University of Washington Seattle Campus, School of Oceanography, Seattle, United States, Jessica N Fitzsimmons, Texas A & M University, Department of Oceanography, College Station, United States and Andrea Koschinsky, Jacobs University Bremen, Department of Physics and Earth Sciences, Bremen, Germany
Primary Liaison: Hannah Whitby, University of Liverpool, United Kingdom
Moderators: Emily Estes, University of Delaware, Newark and Veronique Oldham, University of Delaware, College of Earth, Ocean, and Environment, Lewes, United States
Student Paper Review Liaison: Emily Estes, University of Delaware, Newark
Abstracts Submitted to this Session:
Heavy metal content of water, sediment and fish (Oreochromis niloticus, Linnaeus, 1758) from industrial effluent-polluted aquatic ecosystem in Lagos, Nigeria (639652)
Hijrah YETUNDE Kushoro, Department of Fisheries, Faculty of Science, Lagos State University, Lagos, Nigeria and Prince Emeka Emeka Ndimele, Department of Fisheries, Faculty of Science, Lagos State University, Ojo,, Department of Fisheries, Faculty of Science,, Lagos, Nigeria
Assessment of Heavy Metal Concentration in Chrysichthys nigrodigitatus (Lacépède, 1803) and Eichhornia crassipes [Mart.] Solms from Ologe Lagoon and its Tributaries in Lagos, Nigeria (647906)
Alayode Segun Sunmoni, National Open University of Nigeria, Biology, Lagos, Nigeria and Oluwafunmilola Esther Ndimele, University of Uyo, Akwa-Ibom State, Nigeria, Uyo, Nigeria
Heavy Metals Concentration in Water, Sediment, Plant and Bathygobious soporator from Ologe Lagoon, Lagos State, Nigeria (648515)
Adejuwon Ayomide Mustapha, Lagos State University, Ojo, Lagos State, Nigeria, Fisheries, Lagos, Nigeria
Trace metals and copper isotope dynamics in the Ala Wai watershed and estuary, Hawaiʻi: Comparing the 1990s to today, and storm runoff to baseflow. (644401)
Lucie Anna Christa Maria Knor, University of Hawaii at Manoa, Oceanography, Honolulu, HI, United States, Olivier Rouxel, Geo-Ocean, Univ Brest, CNRS, Ifremer, UMR6538, Plouzané, France and Eric Heinen De Carlo, Univ Hawaii, Honolulu, HI, United States
Interactions between terrestrial dissolved organic matter and trace metals in the Amazon River plume (650843)
Michael Seidel1, Melina Knoke2, Jomar S. J. Marques2, Hannelore Waska2, Heike Simon2, Carlos Eduardo Rezende3, Andrea Koschinsky4 and Thorsten Dittmar5, (1)Institute for Chemistry and Biology of the Marine Environment (ICBM), Carl von Ossietzky University of Oldenburg, Oldenburg, Germany, (2)University of Oldenburg, Oldenburg, Germany, (3)UENF State University of Northern of Rio de Janeiro, Rio De Janeiro, Brazil, (4)Jacobs University Bremen, Department of Physics and Earth Sciences, Bremen, Germany, (5)University of Oldenburg, Institute for Chemistry and Biology of the Marine Environment (ICBM), Oldenburg, Germany
New Players and Pathways in Manganese Oxidation Along an Estuarine Gradient (643354)
Jennifer Necker1, Veronique Oldham2,3, Scott D. Wankel4 and Colleen Hansel4, (1)Eckerd College, St. Petersburg, United States, (2)University of Rhode Island, Graduate School of Oceanography, Narragansett, United States, (3)Woods Hole Oceanographic Institution, Department of Marine Chemistry and Geochemistry, Woods Hole, MA, United States, (4)Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, MA, United States
The Elemental Composition of Size Fractionated Particulate Matter Samples from the Central Arabian Gulf: Biotic and Abiotic sources (642028)
Oguz Yigiterhan1, Ibrahim S Al-Ansari1, Alex Nelson2, Mohamed Abdel-Moati3, Jesse Turner4, Hamood A Alsaadi1, Barbara Paul2, Ibrahim Abdullatif Al-Maslamani5, Mehsin Al-Ansi6 and James W Murray2, (1)Qatar University, Environmental Science Center, Doha, Qatar, (2)University of Washington, School of Oceanography, Seattle, WA, United States, (3)Qatar Ministry of Municipality and Environment, Environmental Assessment Department, Doha, Qatar, (4)University of Washington Seattle Campus, Civil and Environmental Engineering, Seattle, WA, United States, (5)Qatar University, Office of Vice President for Research and Graduate Studies, Doha, Qatar, (6)Qatar University, Department of Environmental and Biological Sciences, Doha, Qatar
An algorithm to characterize cobalt ligands in GEOTRACES samples (647408)
Jingxuan LI, MIT-WHOI Joint Program, Chemical Oceanography, Woods Hole, MA, United States, Lydia Babcock-Adams, Woods Hole Oceanographic Institution, Marine Chemistry & Geochemistry, Woods Hole, United States, Zhongchang Song, Woods Hole Oceanographic Institution, United States, Matthew R McIlvin, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, United States and Daniel Repeta, Woods Hole Oceanographic Institution, Marine Chemistry and Geochemistry, Woods Hole, MA, United States
Accumulation of metal(loid)s in plankton in coastal waters (638764)
Jadran Faganeli1, Ingrid Falnoga2, Nives Kovac1, Darja Mazej2, Patricija Mozetic3 and Tea Zuliani4, (1)National Institute of Biology, Marine Biology Station, Piran, Slovenia, (2)Jozef Stefan Institute, Dept. Environ. Sci., Ljubljana, Slovenia, (3)National Institute of Biology, Piran, Slovenia, (4)Jozef Stefan Institute, Dept. Environ. Sci, Ljubljana, Slovenia
The effects of temperature, salinity, and sediment organic carbon on MeHg uptake in phytoplankton (640775)
Amanda Curtis1,2, Kate Buckman1, Vivien F. Taylor1, Brian P Jackson1 and Celia Chen1, (1)Dartmouth College, Hanover, NH, United States, (2)University of Illinois at Urbana Champaign, Urbana, IL, United States
