ME51C:
Resolving OMZ Processes: Single Cells to Ecosystems, Coasts to Open Ocean II


Session ID#: 11526

Session Description:
Areas of low oxygen have spread dramatically over the past 40 years and represent a significant ecosystem perturbation. The formation and persistence of both natural and anthropogenically induced oxygen minimum zones (OMZs) result from linkages among physical, chemical and biological processes. OMZs are spatially diverse and found worldwide in marine environments, particularly in upwelling or nutrient rich coastal systems. In these OMZs, oxygen is consumed more rapidly than it is resupplied, and declining oxygen concentrations result in a shift from aerobic to anaerobic metabolisms. This transition can result in production of potent greenhouse gasses such as methane and nitrous oxide. Thus, OMZs represent a potential positive feedback loop for global warming. This session will explore the current state of knowledge on OMZs, scaling from genes and transcripts to microbial cells and populations, and finally to whole ecosystems in coastal and open ocean OMZs. Of particular interest is work that integrates biological, chemical and/or physical data across micro to macro-spatial scales. Contributions are encouraged from biologists across all ecological levels, and from both chemical and physical oceanographers studying regions of low dissolved oxygen.
Primary Chair:  Gordon T Taylor, Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States
Chairs:  Cameron Thrash, Louisiana State University, Biological Sciences, Baton Rouge, LA, United States, Olivia U Mason, Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States, Frank J Stewart, Georgia Institute of Technology, Atlanta, GA, United States and Martina Sollai, Royal Netherlands Institute for Sea Research, 't Horntje, Netherlands
Moderators:  Gordon T Taylor, Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States, Frank J Stewart, Georgia Institute of Technology, Atlanta, GA, United States and Martina Sollai, Royal Netherlands Institute for Sea Research, 't Horntje, Netherlands
Student Paper Review Liaisons:  Frank J Stewart, Georgia Institute of Technology, Atlanta, GA, United States and Martina Sollai, Royal Netherlands Institute for Sea Research, 't Horntje, Netherlands
Index Terms:

1952 Modeling [INFORMATICS]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4902 Anthropogenic effects [PALEOCEANOGRAPHY]
Co-Sponsor(s):
  • B - Biogeochemistry and Nutrients
  • HI - Human Use and Impacts
  • MM - Microbiology and Molecular Biology
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

ME51C-01
Characterization of the intra-annual variability in the Oxygen Minimum Zone (OMZ) off Peru (88738)
Aurélien Paulmier1, Fernando Campos2,3, Boris Dewitte1, Veronique Garcon4, Serena Illig5, Edgardo Carrasco6, Olivier Depretz de Gesincourt7, Jacques Grelet8, Jesus Alejandro Ledesma6, Christophe Maes9, Ivonne Montes3, Andreas Oschlies10, Jorge Quispe2,6 and Lionel Scouarnec7, (1)LEGOS/IRD, SYSCO2, TOULOUSE, France, (2)UNAC, LIMA, Peru, (3)Instituto Geofísico del Perú, Lima, Peru, (4)CNRS-LEGOS, Toulouse, France, (5)LEGOS/UMR 5566, Toulouse, France, (6)IMARPE, Callao, Peru, (7)DT-INSU/CNRS, BREST, France, (8)IRD, Brest, France, (9)Laboratoire de Physique des Océans, Brest, France, (10)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
ME51C-02
Planktonic Marine Iron-Oxidizers Drive Iron(III) Mineralization Under Low Oxygen Conditions (88019)
George W Luther III1, Erin K Field2, Alyssa Findlay3, Daniel J MacDonald4, Clara Sze-Yue Chan5 and Shingo Kato4, (1)University of Delaware, College of Earth, Ocean and Environment, Lewes, DE, United States, (2)University of Delaware, Lewes, DE, United States, (3)University of Delaware, College of Earth, Ocean, and Environment, Lewes, DE, United States, (4)University of Delaware, Newark, DE, United States, (5)Woods Hole Oceanographic Inst, Newark, DE, United States
ME51C-03
Microbial nitrogen sinks in the water column of a large coastal hypoxic area, the Gulf of Mexico “Dead Zone” (92299)
Mary Katherine Rogener1, Brian J Roberts2, Nancy N Rabalais2, Frank J Stewart3 and Samantha Benton Joye4, (1)University of Georgia, Marine Sciences, Athens, GA, United States, (2)Louisiana Universities Marine Consortium, Chauvin, LA, United States, (3)Georgia Institute of Technology, Atlanta, GA, United States, (4)University of Georgia, Department of Marine Sciences, Athens, GA, United States
ME51C-04
A Metagenomic Assembly-Based Approach to Decoding Taxa in the Dead Zone (91610)
Cameron Thrash1, Brett Baker2, Kiley Seitz2, Lauren Gillies3, Ben Temperton4, Nancy N Rabalais5 and Olivia U Mason3, (1)Louisiana State University, Biological Sciences, Baton Rouge, LA, United States, (2)University of Texas at Austin, Austin, TX, United States, (3)Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States, (4)University of Exeter, Exeter, United Kingdom, (5)Louisiana Universities Marine Consortium, Chauvin, LA, United States
ME51C-05
Oxygen Minimum Zones in Miniature: Microbial Community Diversity, Activity, and Assembly Across Oxygen Gradients in Meromictic Marine Lakes, Palau (92534)
J Michael Beman, University of California Merced, Merced, CA, United States
ME51C-06
Rogoznica Lake – a Conceptual Framework to Study Sulfate-reducing Bacteria Across a Wide Range of Anoxic/hypoxic Marine Environments (87446)
Milan Cankovic1, Gavin Collins2, Ines Petrić1 and Irena Ciglenečki1, (1)Ruder Boskovic Institute, Division for Marine and Environmental Research, Zagreb, Croatia, (2)NUI Galway, School of Natural Sciences, Microbiology, Galway, Ireland
ME51C-07
Chemoautotrophy: Discerning the Key Perpetrators from the Cariaco Redoxcline Lineup of Suspects (89963)
Virginia P Edgcomb1, Maria Pachiadaki2, Gordon T Taylor3 and Elizabeth Suter3, (1)Woods Hole Oceanographic Inst, Geology and Geophysics Department, Woods Hole, MA, United States, (2)Bigelow Laboratory for Ocean Sciences, East Boothbay, ME, United States, (3)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States
See more of: Marine Ecosystems