ME34D:
Resolving OMZ Processes: Single Cells to Ecosystems, Coasts to Open Ocean I Posters

Submit an Abstract to this Session

Session ID#: 9533

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, 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:  Olivia U Mason, Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States and Cameron Thrash, Louisiana State University, Biological Sciences, Baton Rouge, United States
Student Paper Review Liaisons:  Olivia U Mason, Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States and Cameron Thrash, Louisiana State University, Biological Sciences, Baton Rouge, United States
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:

 
ME34D-0821
Remineralization and preservation of the Organic Matter (OM) in the Peruvian Oxygen Minimum Zone (89411)
Marine Bretagnon1, Aurélien Paulmier2, Veronique Garcon3, Boris Dewitte4, Christophe Maes4,5, Fernando Campos6,7, Edgardo Carrasco8, Laurent Coppola9,10, Olivier Depretz de Gesincourt11, Carl Gojak12, Jacques Grelet13, Serena Illig14, Nathalie Leblond10,15, Dominique Lefevre16, Philippe Martinez17, Andreas Oschlies18, Christos Panagiotopoulos19, Lionel Scouarnec20 and Federico Velazco8, (1)LEGOS/ACRI, TOULOUSE, France, (2)LEGOS/IRD, UMR5566, Toulouse, France, (3)LEGOS/CNRS, SYSCO2, TOULOUSE, France, (4)LEGOS/IRD, SYSCO2, TOULOUSE, France, (5)Laboratoire de Physique des Océans, Brest, France, (6)UNAC, LIMA, Peru, (7)Instituto Geofísico del Perú, Lima, Peru, (8)IMARPE, Callao, Peru, (9)Laboratoire d'Océanographie de Villefranche (LOV), UMR 7093, Sorbonne Université, Villefranche-sur-Mer, France, (10)OOV, Villefranche sur Mer, France, (11)INSU/CNRS, DT, BREST, France, (12)INSU/CNRS, DT, France, (13)IRD, Brest, France, (14)LEGOS/IRD, Toulouse, France, (15)LOV, Villefranche sur Mer, France, (16)Mediterranean Institute of Oceanography, Marseille, France, (17)EPOC, Bordeaux, France, (18)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (19)MIO/CNRS, Marseille, France, (20)DT-INSU/CNRS, BREST, France
 
ME34D-0822
Microbial degradation on POC flux in the eastern tropical Pacific oxygen minimum zone (88962)
Emma Cavan, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, Mark Trimmer, Queen Mary University of London, School of Biological and Behavioural Sciences, London, United Kingdom, Felicity Shelley, Queen Mary University of London, School of Biological and Chemical Sciences, London, United Kingdom and Richard Sanders, National Oceanography Centre, Southampton, United Kingdom
 
ME34D-0823
A Phosphate Minimum in the Oxygen Minimum Zone (OMZ) off Peru (89420)
Mélanie Giraud1, Aurélien Paulmier2, Joël Sudre3, Justyna Jonca4, Violeta Leon5, Octavio Moron5, Boris Dewitte6, Gaute Lavik7, Patricia Grasse8, Martin Frank9, Lothar Stramma10 and Veronique Garcon4, (1)France Energie Marine, BREST, France, (2)LEGOS/IRD, UMR5566, Toulouse, France, (3)LEGOS/CNRS, SYSCO2, Toulouse, France, (4)LEGOS/CNRS, SYSCO2, TOULOUSE, France, (5)IMARPE, CALLAO, Peru, (6)LEGOS/IRD, SYSCO2, TOULOUSE, France, (7)Max Planck Institute for Marine Microbiology, Bremen, Germany, (8)iDiv University of Leipzig, Leipzig, Germany, (9)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (10)GEOMAR, Kiel, Germany
 
ME34D-0824
Location and continuity of the annual northern Gulf of Mexico hypoxic zone influences microbial diversity (87424)
Lauren Gillies1, Cameron Thrash2, Nancy N Rabalais3 and Olivia U Mason1, (1)Florida State University, Earth, Ocean and Atmospheric Sciences, Tallahassee, FL, United States, (2)Louisiana State University, Biological Sciences, Baton Rouge, United States, (3)Louisiana Universities Marine Consortium, Chauvin, LA, United States
 
ME34D-0825
Anomalous δ13C in POC at the chemoautotrophy maximum in the Cariaco Basin (87903)
Mary I Scranton1, Gordon T Taylor2, Robert Thunell3,4, Eric Tappa5, Claudia R Benitez-Nelson4, Frank E Muller-Karger6, Laura Lorenzoni7 and Yrene Margarita Astor8, (1)Stony Brook University, School of Marine & Atmospheric Sciences, Stony Brook, NY, United States, (2)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States, (3)University of South Carolina, SEOE, Columbia, SC, United States, (4)Univ South Carolina, Columbia, SC, United States, (5)Univ South Carolina, SEOE, Columbia, SC, United States, (6)University of South Florida St. Petersburg, IMaRS, St Petersburg, United States, (7)University of South Florida, College of Marine Science, St. Petersburg, FL, United States, (8)Fundacion LaSalle EDIMAR, Punta De Piedras, Isla de Margarita, Venezuela
 
ME34D-0826
Linking Prokaryotic Assemblages and Biogeochemistry to Long-Term Declines in Chemoautotrophy in the Cariaco Basin (89902)
Gordon T Taylor1, Elizabeth Suter2, Stephanie Chow2, Dallyce Stinton2, Yrene Margarita Astor3 and Mary I Scranton2, (1)Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States, (2)Stony Brook University, School of Marine & Atmospheric Sciences, Stony Brook, NY, United States, (3)Fundacion LaSalle EDIMAR, Punta De Piedras, Isla de Margarita, Venezuela
 
ME34D-0828
Modeling anoxic aggregates in the ocean - implications for nitrogen, sulfur and trace metal cycling (90655)
Daniele Bianchi, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Thomas S Weber, University of Washington Seattle Campus, School of Oceanography, Seattle, WA, United States and Curtis A. Deutsch, University of Washington Seattle Campus, School of Oceanography, Seattle, United States
 
ME34D-0829
Activity and diversity of aerobic methanotrophs in a coastal marine oxygen minimum zone (90354)
Cory C Padilla1, Laura A Bristow2, Neha D Sarode1, Emilio Garcia-Robledo3, Peter R Girguis4, Bo Thamdrup5 and Frank J Stewart1, (1)Georgia Institute of Technology, Atlanta, GA, United States, (2)University of Southern Denmark, Odense M, Denmark, (3)Aarhus University, Aarhus, Denmark, (4)Harvard University, Organismic and Evolutionary Biology, Cambridge, MA, United States, (5)University of Southern Denmark, Department of Biology, Odense, Denmark
 
ME34D-0830
Denitrifying SUP05 Require Exogenous Nitrogen (91935)
Vega Shah1, Bonnie X Chang2 and Robert M Morris1, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)Univ Washington, Seattle, United States
 
ME34D-0831
Slow Growth and High Substrate Affinity of Anammox Bacteria in an Oxygen Minimum Zone (90981)
Laura A Bristow1, Cory C Padilla2, Neha D Sarode3, Frank J Stewart3 and Bo Thamdrup4, (1)University of Southern Denmark, Odense M, Denmark, (2)Georgia Institute of Technology Main Campus, Atlanta, GA, United States, (3)Georgia Institute of Technology, Atlanta, GA, United States, (4)University of Southern Denmark, Department of Biology, Odense, Denmark
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