CT24A:
Integrative Approaches and Emerging Techniques to Study the Sources and Cycling of Organic Matter Through Isotope Ecology and Geochemistry Posters


Session ID#: 28465

Session Description:
The sources and cycling of organic matter play a major role in the structure and function of life on Earth. These processes influence everything from individual consumer-resource relationships to ecosystem responses to climate change. Recent advances in the stable and radio-isotope analysis of individual compounds (e.g., amino acids, fatty acids, etc.) have opened new doors to studying a wide range of interconnected topics, including: physiology, diet and trophic dynamics, animal migration and reproduction, biogeochemical cycling, and the processing of organic matter. This session focuses on the development and integrative application of novel techniques for isotope geochemistry (both compound-specific and cutting edge bulk) to study these ecological and biogeochemical dynamics in marine systems. We encourage submissions across a range of isotopes, compounds, and scales of biological organization (e.g., molecular, organismal, and ecosystem). This session seeks to open new discussions about current and emerging tools, their benefits and limitations, and applications to new questions and systems that push the evolution of this field.
Primary Chair:  Kelton McMahon, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI, United States
Co-chairs:  Yasuhiko T Yamaguchi, The University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Chiba, Japan, Yoshito Chikaraishi, Hokkaido University, Institute of Low Temperature Science, Sapporo, Japan and Michael J Polito, Louisiana State University, Oceanography and Coastal Sciences, Baton Rouge, LA, United States
Moderators:  Yoshito Chikaraishi, Hokkaido University, Institute of Low Temperature Science, Sapporo, Japan and Kelton McMahon, Institute of Marine Sciences, University of California Santa Cruz, Santa Cruz, CA, United States
Student Paper Review Liaison:  Yasuhiko T Yamaguchi, Lake Biwa Environmental Research Institute, Otsu, Shiga, Japan
Index Terms:

4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4817 Food webs, structure, and dynamics [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4858 Population dynamics and ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4870 Stable isotopes [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • BN - Biogeochemistry and Nutrients
  • MM - Microbiology and Molecular Ecology

Abstracts Submitted to this Session:

Are All Algae Created Equal? Determining the Ability of Compound-Specific Stable Isotope Analysis to Identify Different Phyla of Macroalgae for Use in Trophic Ecology (303067)
Julianna J Renzi, University of Arizona, Tucson, AZ, United States, Leah A Houghton, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Simon Thorrold, WHOI, Woods Hole, MA, United States
Contribution of microbially-derived carbon to benthic invertebrates across the Chukchi Sea shelf using amino acid specific stable isotope analyses (320917)
Ann-Christine Zinkann1, Katrin Iken2, Matthew J Wooller2 and Diane O´Brien3, (1)University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, United States, (2)University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States, (3)University of Alaska Fairbanks, Institute of Arctic Biology, Fairbanks, AK, United States
Amino Acid-specific d15N Trophic Enrichment Factor in Fish Fed with Formulated Diets Varying in Protein Quantity and Quality (305043)
Maria Teresa Nuche1, Sharon Z Herzka2, Juan Pablo Lazo1 and Rocio I. Ruiz-Cooley3, (1)CICESE, Ensenada, Mexico, (2)CICESE, Biological Oceanography, Ensenada, Mexico, (3)Moss Landing Marine Labs, Ocean Sciences, Moss Landing, CA, United States
Investigate the effects of hypoxia on trophic positions of croakers in the northern Gulf of Mexico using δ15N in individual amino acids. (309375)
Lin Zhang, Texas A&M University Corpus Christi, Corpus Christi, TX, United States and Mark A Altabet, Univ Massachusetts Darmouth, New Bedford, MA, United States
A changing nitrogen source for phytoplankton in the central Yellow Sea revealed by Compound-Specific Isotope Analysis of amino acids (310906)
Hyuntae Choi1, Bohyung Choi1, Yoshito Chikaraishi2, Yoshinori Takano3, Haryun Kim4, Kitack Lee5, Dhong-Il Lim6 and Kyung-Hoon Shin1, (1)Hanyang University, Department of marine science and convergence technology, Ansan, South Korea, (2)Hokkaido University, Institute of Low Temperature Science, Sapporo, Japan, (3)JAMSTEC, Yokosuka, Japan, (4)Department of Ecology and Conservation, National Marine Biodiversity Institute of Korea, Seochon, South Korea, (5)Pohang Univ Sci Tech, Pohang, South Korea, (6)Korea Institute of Ocean Science and Technology, South Sea Research Institute, Jangmok, South Korea
Investigating the Utility of Compound Specific Stable Nitrogen Isotopes Measured in the Periostracum of Arctica islandica Shells as a Proxy for Hydrographic Dynamics during the Late Holocene in the Gulf of Maine (318296)
Nina Whitney1, Beverly J Johnson2, Philip T. Dostie3, Katie Luzier4 and Alan D Wanamaker1, (1)Iowa State University, Geological and Atmospheric Sciences, Ames, IA, United States, (2)Bates College, Lewiston, ME, United States, (3)Bates College, Geology, Lewiston, ME, United States, (4)Iowa State University, Ames, IA, United States
Unique Sources and Cycling of Semi-Labile and Refractory Marine Dissolved Organic Nitrogen in the Major Ocean Basins (322718)
Taylor Broek, University of California, Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States; Lawrence Livermore National Laboratory, Center for Accelerator Mass Spectrometry, Livermore, CA, United States and Matthew D. McCarthy, University of California Santa Cruz, Ocean Sciences Department, Santa Cruz, CA, United States
Ground-truthing the Foraminifera-bound Nitrogen Isotope Paleo-proxy in the Modern Southern Ocean (305714)
Sandi Smart, Stellenbosch University, Department of Earth Sciences, Matieland, South Africa, Fawcett Sarah, University of Cape Town, Oceanography, Cape Town, South Africa, Haojia Abby Ren, Academia Sinica, Research Center for Environmental Changes, Taipei, Taiwan, Ralf Schiebel, Max Planck Institute for Chemistry, Climate Geochemistry Department, Mainz, Germany, Alfredo Martinez-Garcia, ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland, Mira A Weigand, Princeton University, Department of Geosciences, Princeton, NJ, United States, Alakendra N Roychoudhury, Stellenbosch University, Earth Sciences, Stellenbosch, South Africa, Gerald Haugh, Max Planck Institute for Chemistry, Mainz, Germany and Daniel Mikhail Sigman, Princeton University, Princeton, NJ, United States
Compound-Specific Stable Isotope Analysis of Aqueous and Gas Phase Ethanol Using Solid Phase Microextraction (322258)
Megumi S Shimizu1, Sarah Lyn Summerlin1, Matthew Casas1, J David Felix2, Brooks Avery1, Ralph N Mead1, Chad Lane3, Robert J Kieber1 and Joan D Willey1, (1)University of North Carolina Wilmington, Department of Chemistry and Biochemistry, Wilmington, NC, United States, (2)Texas A&M University Corpus Christi, Department of Physical and Environmental Science, Corpus Christi, TX, United States, (3)University of North Carolina at Wilmington, Earth and Ocean Sciences, Wilmington, NC, United States
Radiocarbon as an indicator of animal migration in the ocean: An application to the breeding ecology of Japanese chum salmon (325042)
Yasuhiko T Yamaguchi1,2, Shigenori Nobata1, Tatsuya Kawakami1, Kotaro Shirai1, Kentaro Honda3, Yosuke Miyairi1, Yusuke Yokoyama1 and Toshi Nagata1, (1)The University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Chiba, Japan, (2)Lake Biwa Environmental Research Institute, Otsu, Shiga, Japan, (3)Japan Fisheries Research and Education Agency, Hokkaido National Fisheries Research Institute, Sapporo, Hokkaido, Japan
Trace Element Ratios in Sea Turtle Humerus Bones Track Ontogenetic Changes in Resource Use (313900)
Matthew David Ramirez, Oregon State University, Fisheries and Wildlife, Corvallis, OR, United States, Jessica A Miller, Oregon State University, Fisheries and Wildlife, Newport, OR, United States, Larisa Avens, NOAA NMFS, Southeast Fisheries Science Center, Beaufort Laboratory, Beaufort, NC, United States, Jeffrey A Seminoff, NOAA NMFS, Southwest Fisheries Science Center, La Jolla, CA, United States, Eric Parks, Savannah State University, Savannah, GA, United States and Selina S Heppell, Oregon State University, Department of Fisheries and Wildlife, Corvallis, OR, United States

See more of: Chemical Tracers, Organic Matter and Trace Elements