ME21A:
Ecology and Biogeochemistry of Macroalgae I

Session ID#: 93058

Session Description:
Macroalgal primary production structures many nearshore systems by physically engineering habitat and fundamentally altering biogeochemical processes. The development and advancement of remote sensing, physical oceanographic instrumentation, and sequencing technologies are greatly expanding our understanding of the ecology of macroalgal communities and the influence of these communities on carbon and nutrient dynamics in the coastal environment. For example, aerial hyperspectral imaging are vastly enhancing the spatiotemporal resolution of macroalgal physiological state monitoring; while advancements in genomic analysis are elucidating shifts in macroalgal microbiomes from healthy to diseased states. Synthesis of these interdisciplinary studies is key to constructing frameworks for predicting the potential effects of current and future ocean change on coastal macroalgal ecology and cycling of key elements (e.g. carbon and nitrogen) in coastal regions.

This session focuses on the technological advancements and interdisciplinary studies that are enhancing our understanding of macroalgal ecology and the influence of various macroalgal species on coastal carbon and nutrient cycling. Presentations that highlight developments in our understanding of invasive species, macroalgal microbiomes, phase-shifts on coral reefs, macroalgal health, and other topics related to macroalgal ecology and controls on coastal biogeochemistry are encouraged.

Co-Sponsor(s):
  • OB - Ocean Biology and Biogeochemistry
  • PI - Physical-Biological Interactions
Index Terms:

4217 Coastal processes [OCEANOGRAPHY: GENERAL]
4273 Physical and biogeochemical interactions [OCEANOGRAPHY: GENERAL]
4845 Nutrients and nutrient cycling [OCEANOGRAPHY: CHEMICAL]
4894 Instruments, sensors, and techniques [OCEANOGRAPHY: BIOLOGICAL]
Primary Chair:  Anna James, University of California at Santa Barbara, Marine Science, Santa Barbara, CA, United States
Co-chairs:  Robert J. Miller, University of California, Marine Science Institute, Santa Barbara, CA, United States, Christie Yorke, Interdepartmental Graduate Program in Marine Science, Ecology, Evolution, and Marine Biology, Santa Barbara, CA, United States and Tom William Bell, University of California, Santa Barbara, Earth Research Institute, Santa Barbara, CA, United States
Primary Liaison:  Tom William Bell, University of California, Santa Barbara, Earth Research Institute, Santa Barbara, CA, United States
Moderators:  Anna James, University of California at Santa Barbara, Marine Science, Santa Barbara, CA, United States and Tom William Bell, Leidos, Maritime Solutions Division, Arlington, VA, United States
Student Paper Review Liaison:  Christie Yorke, Interdepartmental Graduate Program in Marine Science, Ecology, Evolution, and Marine Biology, Santa Barbara, CA, United States

Abstracts Submitted to this Session:

Nutrient availability and programmed senescence spatially structure the dynamics of an ecosystem engineer (637221)
Tom William Bell, University of California, Santa Barbara, Earth Research Institute, Santa Barbara, CA, United States and David Siegel, Univ of California Santa Barbara, Santa Barbara, CA, United States
Drivers of biogeochemical variability in a California kelp forest and implications for local amelioration against ocean acidification (656412)
Heidi Hirsh1, Kerry Jean Nickols2, Yuichiro Takeshita3, Sarah Traiger2, David Mucciarone1, Stephen G Monismith1 and Robert B Dunbar1, (1)Stanford University, Stanford, CA, United States, (2)California State University Northridge, Northridge, CA, United States, (3)Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States
Disturbance, Resources, and Climate Interactively Synchronize Kelp Forests Across Scales (638850)
Max Castorani, University of Virginia, Department of Environmental Sciences, Charlottesville, VA, United States, Tom William Bell, University of California, Santa Barbara, Earth Research Institute, Santa Barbara, CA, United States, Jonathan A Walter, University of Virginia, Department of Environmental Sciences, Charlottesville, United States, Daniel C Reuman, University of Kansas, Department of Ecology and Evolutionary Biology, Lawrence, United States and Lawrence W Sheppard, University of Kansas, Department of Ecology and Evolutionary Biology, Lawrence, KS, United States
Geographic Variation in Growth Response of Ulva spp.to Ocean Acidification and Productivity in High Carbon, Low Oxygen Conditions (658010)
Janet Kubler, California State University, Northridge, Biology, Northridge, CA, United States, Steven R Dudgeon, California State University at Northridge, Biology, Northridge, CA, United States and Samuel R Scoma, California State University Northridge, Biology, Northridge, CA, United States
Increased Nitrogen Fixation Observed With Degrading Sargassum Communities (649677)
Yubin Raut and Douglas G Capone, University of Southern California, Los Angeles, CA, United States
Host Mortality and Morphology Influence Crustose Coralline Algal-Associated Invertebrate Diversity in Moorea, French Polynesia (656416)
Jessica Glanz, California State University, Northridge, Biology, Northridge, CA, United States and Robert Carpenter, California State University of Northridge, CA, United States
Physiological Responses of Two Key Tropical Macroalgae to Variable Environmental Conditions (646851)
Jayslen Serrano, California State University Northridge, Biology, Northridge, CA, United States and Robert Carpenter, California State University of Northridge, CA, United States