HE21A:
Changing Biogeochemical Fluxes, Biodiversity, and Ecological Processes in the Polar Seas, with Special Emphasis on the Coastal Arctic and Sustaining an Integrated Arctic Ocean Observing System I

Session ID#: 92313

Session Description:
Inextricably linked to climate change, the Polar Seas are undergoing drastic changes with global implications. Arctic and Antarctic sea ice and ice sheets are melting, the ocean is acidifying, freshwater fluxes and mixing regimes are changing. Yet, the impacts on marine biodiversity, biogeochemistry, and the function of polar communities and ecosystems remain poorly characterized. These factors, among others, will influence the design, implementation, and enhancement of sustained and integrated polar ocean observing systems urgently needed to assess current conditions and enable improved predictions. This session will bring together modelers, observationalists, and other stakeholders to exchange information and improve understanding on the current state-of-knowledge, gaps, and challenges in observing and modelling the coupled physical, biogeochemical, and ecological processes in the rapidly changing polar oceans, with an emphasis on the coastal Arctic. Submissions are also encouraged on multipurpose observing technology and platforms that form an integrated shared infrastructure for use in the Arctic Ocean (e.g., acoustics and cabled systems). We seek interdisciplinary data and synthesis products that relate climate change to biodiversity changes, altered biogeochemical cycles, and ecological shifts across spatial scales, how feedbacks and controls operate and, ultimately, what new conditions might be present in Earth’s polar systems on decadal and longer time scales.
Co-Sponsor(s):
  • CP - Coastal and Estuarine Processes
  • IS - Ocean Observatories, Instrumentation and Sensing Technologies
  • ME - Marine Ecology and Biodiversity
  • OB - Ocean Biology and Biogeochemistry
  • OM - Ocean Modeling
  • PI - Physical-Biological Interactions
Index Terms:

1621 Cryospheric change [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
1630 Impacts of global change [GLOBAL CHANGE]
1640 Remote sensing [GLOBAL CHANGE]
4207 Arctic and Antarctic oceanography [OCEANOGRAPHY: GENERAL]
4262 Ocean observing systems [OCEANOGRAPHY: GENERAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL]
9315 Arctic region [GEOGRAPHIC LOCATION]
9315 Arctic region [GEOGRAPHIC LOCATION]
9805 Instruments useful in three or more fields [GENERAL OR MISCELLANEOUS]
Primary Chair:  Maria Tzortziou, Columbia University of New York, New York, United States
Co-chairs:  Ilka Peeken, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Polar Biological Oceanography, Bremerhaven, Germany and Dr. Bruce M Howe, PhD, University of Hawaii, Honolulu, United States
Primary Liaison:  Maria Tzortziou, Columbia University of New York, New York, United States
Moderators:  Maria Tzortziou, Columbia University of New York, New York, United States, Ilka Peeken, Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Polar Biological Oceanography, Bremerhaven, Germany, Dr. Bruce M Howe, PhD, University of Hawaii, Honolulu, United States and Maria Vernet, Scripps Institution of Oceanography, La Jolla, CA, United States
Student Paper Review Liaison:  Maria Vernet, Scripps Institution of Oceanography, La Jolla, CA, United States

Abstracts Submitted to this Session:

HE21A-01
Impacts of the Physical Ocean Environment on Sea Ice Biogeochemistry (652963)
Araleigh Cranch1, Brent Else1, Laura A Dalman2, Richard Peter Sims3, Becky Segal4 and Samantha Jones1, (1)University of Calgary, Department of Geography, Calgary, AB, Canada, (2)University of Manitoba, Centre for Earth Observation Science, Winnipeg, MB, Canada, (3)University of Calgary, Geography, Calgary, AB, Canada, (4)University of Victoria, Victoria, BC, Canada
HE21A-02
Effects of sea ice coverage on sedimentary iron and manganese cycling at the Eurasian Arctic Margin (643726)
Allyson Tessin, Kent State University Kent Campus, Kent, United States, Christian März, University of Leeds, Leeds, United Kingdom, Hans-J Brumsack, University of Oldenburg, Oldenburg, Germany, Jens J Matthiessen, Alfred Wegener Institute, Bremerhaven, Germany, Marie-Amélie Blais, Université Laval, QC, Canada, Matt O'Regan, Stockholm University, Department of Geological Sciences, Stockholm, Sweden and Bernhard Schnetger, University of Oldenburg, ICBM Microbiogeochemistry Research Group, Oldenburg, Germany
HE21A-03
Silicon Cycling in Greenlandic fjords: Comparison of Marine and Land-Terminating Glaciers (645728)
Jade Hatton1, Hong Chin Ng2, Alexander Beaton3, Lorenz Meire4 and Katharine R Hendry2, (1)Charles University, Department of Ecology, Prague, Czech Republic, (2)University of Bristol, School of Earth Sciences, Bristol, United Kingdom, (3)National Oceanography Centre, Ocean Technology and Engineering Group, Southampton, United Kingdom, (4)Greenland Institute of Natural Resources, Nuuk, Greenland
HE21A-04
First Measurements of Spring Primary Production in central Hudson Bay (643225)
Lisa Matthes1, Laura A Dalman1, Jens K Ehn1, Jean-Eric Tremblay2, Janghan Lee3, Simon Belanger4, Ilka Peeken5 and C. J. Mundy1, (1)University of Manitoba, Centre for Earth Observation Science, Winnipeg, MB, Canada, (2)Laval University, Biology, Quebec City, QC, Canada, (3)Laval University, Quebec City, QC, Canada, (4)Université du Québec à Rimouski, Biology, Chemistry and Geography, Rimouski, QC, Canada, (5)Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und Meeresforschung, Polar Biological Oceanography, Bremerhaven, Germany
HE21A-05
Biogeographical shifts in key Calanus species in the Arctic Ocean driven by sea-ice decline (649924)
Elizaveta Ershova, UiT The Arctic University of Norway, Tromsø, Norway, Ksenia N. Kosobokova, Russian Academy of Sciences, P.P. Shirsov Institute of Oceanology, Moscow, Russia, Neil Banas, University of Strathclyde, Glasgow, United Kingdom, Barbara Niehoff, Alfred Wegener Institute, Polar Biology, Bremerhaven, Germany, Nicole Hildebrandt, Alfred Wegener Institute, Germany and Ingrid Ellingsen, SINTEF Ocean, Trondheim, Norway
HE21A-06
Observation of prolonged ice algae bloom in drifting Arctic pack ice from autonomous buoy. (642412)
Victoria J Hill, Old Dominion University, Ocean, Earth, and Atmospheric Science, Norfolk, VA, United States, Michael Steele, Univ Washington, Seattle, United States and Bonnie Light, University of Washington, Seattle, WA, United States
HE21A-07
Glacial Discharge and its Impact on Phytoplankton Taxonomic Composition in an Antarctic Fjord (653344)
B. Jack Pan1, Maria Vernet2, Lauren Manck3, Kiefer Forsch3, Lindsey Ekern1, Martina Mascioni4, Katherine Barbeau3, Gastón O. Almandoz4 and Alexander James Orona5, (1)Scripps Institution of Oceanography, Integrative Oceanography Division, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Scripps Institution of Oceanography, Geosciences Research Division, La Jolla, CA, United States, (4)Universidad Nacional de La Plata, La Plata, Argentina, (5)Ocean Motion Technologies, Inc., DS & ML, San Diego, CA, United States
HE21A-08
How do light and iron affect phytoplankton populations in the western Antarctic Peninsula? (638171)
Hannah L Joy-Warren1, Anne-Carlijn Alderkamp2, Evan Baldonado3, Molly Glickman3, Gert van Dijken4, Kate M Lewis4, Kate E Lowry4, Willem van de Poll5 and Kevin R Arrigo4, (1)University of Washington & NOAA Pacific Marine Environmental Laboratory, Cooperative Institute for Climate, Ocean, and Ecosystem Studies, Seattle, United States, (2)Foothill College, Department of Biology, Los Altos Hills, CA, United States, (3)Stanford University, Stanford, CA, United States, (4)Stanford University, Earth System Science, Stanford, CA, United States, (5)University of Groningen, Groningen, Netherlands
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