OB022
Nutrient Co-limitation of Marine Microbes: Exploring Cellular to Ecosystem-Level Effects

Session ID#: 255521

Session Description:
Nutrient availability limits microbial growth in marine ecosystems globally. Accumulating evidence has highlighted the prevalence of nutrient co-limitation, whereby two or more nutrients restrict marine microbial growth simultaneously. Ocean warming is predicted to exacerbate nutrient limitation in general, and may also strengthen biogeochemical links among nutrients, increasing the potential for co-limitation. Accurate diagnosis of nutrient co-limitation is thus crucial for assessing climate change driven impacts on marine ecosystems and ocean biogeochemistry. Yet, we lack fundamental understandings of how microbes adapt their physiology, and allocate resources, to cope with nutrient co-limitation. Such insights could be invaluable in developing biomarkers facilitating quantification of co-limitation in the field and for developing strategies for incorporation of co-limitation into modelling frameworks.

This session aims to bridge the gap between cells, communities and ocean biogeochemistry by bringing together cell biologists,  theoretical modelers, and seagoing oceanographers to discuss experimental design, theory, and mechanisms behind co-limitation  and to explore its  biogeochemical and ecological consequences.

Co-Sponsor(s):
  • Marine Ecology and Biodiversity -
  • Ocean Biology and Biogeochemistry -
Index Terms:

4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4845 Nutrients and nutrient cycling [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
4855 Phytoplankton [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Student/Early Career Chair:  Ana C Franco, Barcelona Supercomputing Center, Barcelona, Spain
Primary Chair:  Katherine Helliwell, University of Exeter; Marine Biological Association, Exeter/Plymouth, United Kingdom
Co-chairs:  Erin Marie Bertrand, Dalhousie University, Department of Biology, Halifax, NS, Canada, Noelle Held, University of Southern California, Department of Biological Sciences, Marine and Environmental Biology Section, United States and Mark Moore, University of Southampton, School of Ocean and Earth Science, Southampton, United Kingdom
 
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