BN24B:
Evolution of Biogeochemical Cycles in the Arctic Ocean: Predicting the Impact from and on Climate Change II Posters


Session ID#: 27885

Session Description:
The Arctic Ocean shelves, particularly those in the Bering, Chukchi and Beaufort seas, are highly productive ecosystems that host large populations of marine mammals, seabirds and fish. Climate change is dramatically altering primary productivity and water column biogeochemistry as ongoing loss of shore-fast ice and longer ice-free seasons increase light availability, promoting phytoplankton growth. Unknown are impacts from changes in the supply and recycling of essential macro (e.g. N, P. Si) or micro (trace elements, e.g., Co, Fe, Zn) nutrients, which are likely critical for sustaining high productivity in this region. Modifications in carbon cycling and primary productivity may also influence emissions of climatically important traces gases (CO2, CH4, N2O). This session invites contributions investigating biogeochemical cycling of major nutrients and traces elements as well and emissions of greenhouse gases and their impacts on primary productivity and climate in the Arctic Ocean. Presentations based on either field experiments (using for example natural or tracer-level isotopes and molecular microbial ecology techniques), laboratory approaches, or model simulations are welcome.
Primary Chair:  Annie Bourbonnais, Woods Hole Oceanographic Institution, Woods Hole, MA, United States; University of Massachusetts Dartmouth, New Bedford, MA, United States
Co-chairs:  Mark A Altabet, University of Massachusetts Dartmouth, New Bedford, MA, United States, Julie Granger, University of Connecticut, Department of Marine Sciences, Groton, CT, United States and Cara C Manning, University of British Columbia, Vancouver, BC, Canada
Moderators:  Annie Bourbonnais, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Cara C Manning, University of British Columbia, Vancouver, BC, Canada, Julie Granger, University of Connecticut, Department of Marine Sciences, Groton, CT, United States and Mark A Altabet, University of Massachusetts Dartmouth, New Bedford, MA, United States
Student Paper Review Liaisons:  Annie Bourbonnais, Woods Hole Oceanographic Institution, Woods Hole, MA, United States and Cara C Manning, University of British Columbia, Vancouver, BC, Canada
Index Terms:

1615 Biogeochemical cycles, processes, and modeling [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4840 Microbiology and microbial ecology [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]
Cross-Topics:
  • AI - Air-Sea Interactions
  • CT - Chemical Tracers, Organic Matter and Trace Elements
  • HE - High Latitude Environments
  • PC - Past, Present and Future Climate

Abstracts Submitted to this Session:

The influence of Eurasian shelf waters in the Western Arctic basins: trace element signals from the Transpolar Drift Stream (Invited) (320876)
Laura M Whitmore, University of Southern Mississippi, Department of Marine Science, Stennis Space Center, MS, United States and Alan M Shiller, University of Southern Mississippi, Marine Science, Stennis Space Center, MS, United States

See more of: Biogeochemistry and Nutrients