OB027
Structure, function and biogeochemical role of plankton communities in the nutrient limited open ocean
Session ID#: 85869
Session Description:
The nearly constant nutrient limitation found in ocean gyres and high nutrient low chlorophyll (HNLC) regions yields unique planktonic communities with particular morphological, physiological, and behavioral adaptations. Recent work has demonstrated new and previously unrecognized links in nutrient limited regions between plankton biodiversity and trophic interactions, dissolved nutrients, the cycling of organic matter, and ocean biogeochemical functioning. These efforts include new interdisciplinary field programs (e.g. EXPORTS, BIOS-SCOPE), long-term time series (e.g. BATS, HOT), and new technologies (AUVs, 'omics approaches). This session will examine how adaptations to oligotrophic conditions influence planktonic community structure and function, including mechanisms governing cellular resource requirements and utilization or production of DOM. We invite contributions that include field, laboratory, theoretical and modeling efforts to identify and understand how plankton composition, physiology and metabolism influence food web structure, elemental composition, DOM cycling, energy transfer, and carbon export in nutrient constrained environments. We anticipate a lively session covering a diverse range of organisms (from viruses to zooplankton) and the interactions between them.
Index Terms:
4273 Physical and biogeochemical interactions [OCEANOGRAPHY: GENERAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: CHEMICAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL]
4817 Food webs, structure, and dynamics [OCEANOGRAPHY: BIOLOGICAL]
4845 Nutrients and nutrient cycling [OCEANOGRAPHY: CHEMICAL]
4845 Nutrients and nutrient cycling [OCEANOGRAPHY: CHEMICAL]
4858 Population dynamics and ecology [OCEANOGRAPHY: BIOLOGICAL]
Primary Chair: Tatiana A Rynearson, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States
Co-chairs: Adam Martiny, University of California Irvine, Earth System Science, Irvine, CA, United States, Bethany D. Jenkins, University of Rhode Island, Cell and Molecular Biology, Kingstown, RI, United States and Robert T Letscher, University of New Hampshire, Earth Sciences, Durham, NH, United States
Primary Liaison: Tatiana A Rynearson, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States
Nutrient Limitation Induce Photoinhibition in a Planktonic Diatom Skeletonema costatum (636968)
Ryoko Yano, Hiroshima University, Graduate School of Integrated Sciences for Life, Higashi-hiroshima, Japan, Shizuka Ohara, Hiroshima University, Graduate School of Biosphere Science, Higashi-hiroshima, Japan and Kazuhiko Koike, Hiroshima University, Graduate School of Integrated Sciences for Life, Higashi-Hiroshima, Japan
Understanding the Role of Nutrient Limitation on Plankton Biomass over Arabian Sea via 1-D Coupled Biogeochemical Model and Bio-Argo Observations. (640443)
Anju Mallissery1, Sreeush M G1, Vinu Valsala1, Smitha B R2, Faseela Hamza3, Bharathi G4 and Chennu Venkateswara Naidu4, (1)Indian Institute of Tropical Meteorology, Pune, India, (2)Centre for Marine Living Resources and Ecology, Ministry of Earth Sciences, Kochi, India, (3)Indian Institute of Tropical Meteorology, Development of Skilled Manpower in Earth System Science, Pune, India, (4)Andhra University, Department of Meteorology and Oceanography, Vishakhapatnam, India
POC Export Regulated by Plankton Community Structure in the Contrast Ecosystems of Marginal Sea (641217)
Bangqin Huang1, Yong Qiu2, Xin Liu1, Edward A. Laws3 and Yuyuan Xie4, (1)Xiamen University, State Key Laboratory of Marine Environmental Science, Xiamen, China, (2)Quanzhou Normal University, Quanzhou, China, (3)Louisiana State University, School of the Coast & Environment, Baton Rouge, LA, United States, (4)Xiamen University, China
Induced Nutrient Assimilation in Oligotrophs: Not Beneficial, Not Possible, Both or Neither? (643431)
Stephen Noell1, Ferdi Hellweger2 and Stephen J Giovannoni1, (1)Oregon State University, Department of Microbiology, Corvallis, OR, United States, (2)Technical University of Berlin, Water Quality Engineering, Berlin, Germany
Production and cross-feeding of nitrite in Prochlorococcus populations (643858)
Paul Berube1, Tyler J O'Keefe1, Anna Nichole Rasmussen2 and Sallie W Chisholm1, (1)Massachusetts Institute of Technology, Civil and Environmental Engineering, Cambridge, MA, United States, (2)Stanford University, Earth System Science, Stanford, CA, United States
Herbivorous protist grazing balances phytoplankton growth in the North Pacific, leaving little primary production for export. (646240)
Heather Mcnair1, Françoise Morison2, Jason Graff3, Tatiana A Rynearson1 and Susanne Menden-Deuer1, (1)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (2)University of Rhode Island, Oceanography, Narragansett, RI, United States, (3)Oregon State University, Corvallis, OR, United States
Come Rain or Shine: Depth, Not Season, Shapes Protistan Community Structure in the NPSG (646746)
Gerid Ollison, University of Southern California, Los Angeles, CA, United States and David A Caron, University of Southern California, Biological Sciences, Los Angeles, CA, United States
Defining Conserved Epibiotic Bacterial Genomes in the Trichodesmium Holobiont Using New Isolate Genomes and Field ‘Omic Techniques (646828)
Eric A Webb1, Yiming Zhao2, Noelle Held3, Elaina D Graham4, Asa Conover5, Jacob Semones5, Yuan Yuan Feng6, Feixue Fu7, Mak A Saito8 and David A Hutchins7, (1)University of Southern California, Marine and Environmental Biology, Los Angeles, CA, United States, (2)University of Southern California, Department of Biological Sciences, Los Angeles, CA, United States, (3)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (4)University of Southern California, Marine & Environmental Biology, CA, United States, (5)University of Southern California, Marine and Environmental Biology Section, Los Angeles, CA, United States, (6)Tianjin University of Science and Technology, College of Marine and Environmental Sciences,, Tianjin, China, (7)University of Southern California, Los Angeles, CA, United States, (8)WHOI, Woods Hole, MA, United States
Determining Fe-limited remodeling of chloroplasts in the Subarctic Pacific through “Meta-Plastid” Analyses (646852)
Kristofer M Gomes, University of Rhode Island, Cell and Molecular Biology, Kingston, RI, United States, Sarah Lerch, University of Rhode Island, Kingston, RI, United States, Kristen N Buck, University of South Florida, College of Marine Science, Saint Petersburg, United States, Mark A Brzezinski, University of California, Marine Science Institute, Santa Barbara, CA, United States and Bethany D. Jenkins, University of Rhode Island, Cell and Molecular Biology, Kingstown, RI, United States
Proteomic assessment of nitrogen assimilation in the North Pacific Subtropical Gyre (647834)
Amy E Zimmerman1, Maureen Coleman2 and Jacob Waldbauer1, (1)University of Chicago, Geophysical Sciences, Chicago, IL, United States, (2)University of Chicago, Chicago, IL, United States
Assessing community metabolism and flexibility: metabolomics and microbial diversity across the North Pacific Transition Zone and in response to nutrient amendments (648526)
Angela Boysen1, Katherine Heal1, Mary Rose Gradoville2, Nicholas Hawco3, Bryndan Paige Durham1, Ryan D Groussman1, Laura T Carlson4, Paulina Pinedo-Gonzalez3, Francois Ribalet1, Jonathan P Zehr5, Randelle M Bundy1, Seth John6, Virginia Armbrust1 and Anitra E Ingalls1, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)University of California Santa Cruz, Ocean Sciences, Santa Cruz, CA, United States, (3)University of Southern California, Earth Sciences, Los Angeles, CA, United States, (4)University of Washington, School of Oceanography, United States, (5)University of California, Ocean Sciences, Santa Cruz, CA, United States, (6)University of Southern California, Department of Earth Sciences, Los Angeles, CA, United States
Phytoplankton Community Composition and Taxon-Specific Growth and Microzooplankton Grazing Rates in Subantarctic HNLC Waters Under Contrasting Mixing and Iron Limiting Conditions (649645)
Andres Gutierrez-Rodriguez1, Mikel Latasa2, Antonia Cristi-Martínez3, Priscillia Gourvil4, Karl Safi5, Dominique Marie4, Adriana Lopes dos Santos6, Daniel Vaulot4 and Scott D Nodder7, (1)National Institute of Water and Atmospheric Research, New Zealand, Marine Biogeochemistry, Wellington, New Zealand, (2)Instituto Español de Oceanografía, Gijon, Spain, (3)Universidad Catolica de la Santisima Concepcion, Concepci�n, Chile, (4)Station Biologique de Roscoff, Roscoff, France, (5)National Institute of Water and Atmospheric Research, Hamilton, New Zealand, (6)Nanyang Technological University, Singapore, Singapore, (7)National Institute of Water and Atmospheric Research (NIWA), Marine Biogeochemistry, Wellington, New Zealand
Running Aground in Paradise: Community Differentiation as Plankton in the Nutrient Limited Open Ocean Encounter Coral Reefs. (650238)
Craig Nelson, University of Hawaiʻi at Mānoa, School of Ocean and Earth Science and Technology, Honolulu, HI, United States, James L Hench, Duke University, Nicholas School of the Environment, Beaufort, NC, United States, Jacqueline Comstock, University of California Santa Barbara, Ecology, Evolution, and Marine Biology, Santa Barbara, CA, United States, Craig A Carlson, University of California Santa Barbara, Marine Science Institute/Department of Ecology, Evolution and Marine Biology, Santa Barbara, CA, United States, Kristina Remple, University of Hawaii at Manoa, Oceanography, Honolulu, HI, United States, Anna James, University of California at Santa Barbara, Marine Science, Santa Barbara, CA, United States, Libe Washburn, Marine Science Institute, Santa Barbara, CA, United States and Alice L Alldredge, University of California Santa Barbara, Santa Barbara, CA, United States
Synergistic Effects of Combined Viral and Protistan Predation on Marine Cyanobacterium Synechococcus Physiology (651595)
Sheri Floge1, Cristina Howard-Varona2, Simon Roux3, Benjamin Bowen4, Rebecca Lau5, Sarah M Schwenck6, Samuel Schwartz7, Tanja Woyke8, Trent Northen4 and Matthew B Sullivan9, (1)Wake Forest University, Biology, Winston-Salem, NC, United States, (2)Ohio State University Main Campus, Microbiology, Columbus, OH, United States, (3)Joint Genome Institute, Environmental Genomics, Walnut Creek, CA, United States, (4)Lawrence Berkeley National Laboratory, Berkeley, CA, United States, (5)Lawrence Berkeley National Lab, Berkeley, CA, United States, (6)Scripps Institution of Oceanography, La Jolla, CA, United States, (7)Wake Forest University, Biochemistry and Molecular Biology, Winston-Salem, NC, United States, (8)DOE Joint Genome Institute, Walnut Creek, CA, United States, (9)Ohio State University Main Campus, Microbiology, Columbus, United States
From nutrient deplete to replete: phytoplankton community composition from the oligotrophic open ocean to eutrophic coastal waters (652148)
Samantha Setta1, Bethany D. Jenkins2, Sonya Dyhrman3 and Tatiana A Rynearson1, (1)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (2)University of Rhode Island, South Kingstown, RI, United States, (3)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States
Diel gene expression patterns in an iron-limited phytoplankton community (652187)
Weida Gong1, Olivia Torano1, Garrett Sharpe1, Alex Niebergall2, Nicolas Cassar3, Scott Michael Gifford1 and Adrian Marchetti1, (1)University of North Carolina at Chapel Hill, Marine Sciences, Chapel Hill, NC, United States, (2)Duke University, Nicholas School of the Environment, Durham, United States, (3)Duke University, Nicholas School of the Environment, Durham, NC, United States
Documenting shifts in diatom physiology across a natural nutrient gradient in the western North Atlantic (653276)
Sarah Lerch1, Matthew Harke2, Samantha Setta3, Tatiana A Rynearson3, Sonya Dyhrman4 and Bethany D. Jenkins5, (1)University of Rhode Island, Kingston, RI, United States, (2)Columbia University of New York, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States, (4)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (5)University of Rhode Island, South Kingstown, RI, United States
Determining the Contributions of Microorganisms to H2O2 Degradation and its Implications for the Success of Prochlorococcus in the Oligotrophic Ocean (653984)
Benjamin Carter Calfee, University of Tennessee, Microbiology, Knoxville, TN, United States, David Talmy, The University of Tennessee, Microbiology, Knoxville, TN, United States, Steven Wilhelm, University of Tennessee, Knoxville, TN, United States and Erik Zinser, University of Tennessee, Department of Microbiology, Knoxville, TN, United States
Light Sensing in Open Ocean Eukaryotic Plankton (653990)
Sacha Coesel1, Ryan D Groussman1, Bryndan Paige Durham2, Rhonda Morales1, Francois Ribalet1 and E. Virginia Armbrust1, (1)University of Washington, School of Oceanography, Seattle, WA, United States, (2)University of Florida, Gainesville, FL, United States
Comparing the Bioavailability of a Natural and Synthetic Iron Source: Do Past Experiments Accurately Model Diatom Growth in Response to Episodic Iron Addition? (654113)
Clayton Mazur1, Suzanne Strom1 and Ana Aguilar-Islas2, (1)Shannon Point Marine Ctr, Anacortes, WA, United States, (2)University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States
Cyanophage Host-Derived Genes Reflect Changes in Host Ecotype and Depth in the Water Column (655184)
David Garcia Prieto1, Matthew Hays1, Michael Carlson2 and Clara A Fuchsman1, (1)University of Maryland Center for Environmental Science Horn Point Laboratory, Cambridge, MD, United States, (2)Technion Israel Institute of Technology, Faculty of Biology, Haifa, Israel
Quantifying microzooplankton communities along open ocean salinity gradients (656784)
Sebastian Grimm, Bard College, Center for Environmental Policy, Annandale-On-Hudson, NY, United States, Marco Spodek, Bard College, Center for the Study of Land, Air, and Water, Annandale-On-Hudson, NY, United States, Andrew R Juhl, Lamont-Doherty Earth Observatory, Columbia University, Division of Biology and Paleo Environment, Palisades, NY, United States, Ajit Subramaniam, Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States and M. Elias Dueker, Bard College Center for the Study of Land, Air, and Water, Environmental and Urban Studies, Biology, Annandale-on-Hudson, NY, United States
Community Interactions and Nutrient Concentrations Affect Diel Periodicity of Microbial Gene Expression in Oligotrophic Sunlit Waters. (657149)
Alice Vislova1, Anna E Romano2, John Eppley3 and Edward DeLong2, (1)University of Hawaii, Oceanography, Honolulu, HI, United States, (2)Daniel K. Inouye Center for Microbial Oceanography: Research and Education, University of Hawaii at Manoa, Honolulu, HI, United States, (3)University of Hawaii, United States
Pelagic Sargassum in the Western Tropical North Atlantic: Does the Amazon Plume Drive Sargassum Growth? (657516)
Joseph Peter Montoya1, Erica Kelley Strope1, Ajit Subramaniam2, Elana Jasmine Ames3, Richard N Peterson4, Mengqiu Wang5 and Chuanmin Hu6, (1)Georgia Institute of Technology, School of Biological Sciences, Atlanta, GA, United States, (2)Columbia University, Lamont-Doherty Earth Observatory, Palisades, NY, United States, (3)Coastal Carolina University, Conway, SC, United States, (4)Coastal Carolina University, Coastal and Marine Systems Science, Conway, SC, United States, (5)University of South Florida, College of Marine Science, Saint Petersburg, FL, United States, (6)University of South Florida St. Petersburg, Optical Oceanography, St Petersburg, FL, United States
