OB44D:
Complexity, Connectivity, and Change in Southern Ocean Food Webs III Posters

Session ID#: 93471

Session Description:
Changes in ice, ocean and ecosystem dynamics in the Southern Ocean are affecting biodiversity at all trophic levels, from plankton to whales. These reflect multiple drivers of change and the complexity and heterogeneity of ecosystems and ecological responses. Food-web processes are fundamental in maintaining the structure, functioning and resilience of ecosystems and hence in ecological responses to change. Improved understanding of Southern Ocean food webs is crucial for developing models to project the impacts of future change and informing decision making for conservation and management. An international and interdisciplinary approach is required to link studies of food webs with analyses of biogeochemical cycles and physical and chemical processes at multiple scales. This session is intended to bring together studies on emerging areas of research including the spatial and temporal variability and connectivity of food webs, food web resilience properties and biodiversity, interactions between pelagic, sea-ice or benthic food webs, importance of food-web processes in biogeochemical cycles (including carbon budgets) and combined effects of past and current harvesting and climate-related changes on individual species and their food web interactions. Presentations that report field, data syntheses and modelling studies that elucidate the structure and dynamics of Southern Ocean food webs are encouraged.
Co-Sponsor(s):
  • AI - Air-Sea Interactions
  • ME - Marine Ecology and Biodiversity
  • PI - Physical-Biological Interactions
Index Terms:
Primary Chair:  Nadine Johnston, NERC British Antarctic Survey, Ecosystems, Cambridge, United Kingdom
Co-chairs:  Andrea M Pinones, Instituto de Ciencias Marinas y Limnol√≥gicas, Valdivia, Chile, Eugene John Murphy, British Antarctic Survey, Cambridge, United Kingdom and Eileen E Hofmann, Old Dominion University, Center for Coastal Physical Oceanography, Norfolk, VA, United States
Primary Liaison:  Nadine Johnston, NERC British Antarctic Survey, Ecosystems, Cambridge, United Kingdom
Moderators:  Eugene John Murphy, British Antarctic Survey, Cambridge, United Kingdom and Eileen E Hofmann, Old Dominion University, Center for Coastal Physical Oceanography, Norfolk, VA, United States
Student Paper Review Liaison:  Stuart Corney, University of Tasmania, Hobart, Australia

Abstracts Submitted to this Session:

 
Physiology of Lipid-storing Copepods During Summer Along the West Antarctic Peninsula (648138)
Ann M Tarrant, Woods Hole Oceanographic Institution, Department of Biology, Woods Hole, MA, United States, Deborah K Steinberg, Virginia Institute of Marine Science, Department of Biological Sciences, Gloucester Point, VA, United States and Cory A Berger, Woods Hole Oceanographic Institution, Woods Hole, United States
 
Trophic interactions of micro- and mesozooplankton in the Amundsen Sea polynya during austral late summer (651114)
Eun Jin Yang, Youngju Lee, Sang Hoon Lee and Tae-Wan Kim, Korea Polar Research Institute, Incheon, South Korea
 
Regional variability of Antarctic krill (Euphausia superba) diet as determined using lipid, fatty acid and sterol composition (649475)
Nicole Hellessey1, Jessica A Ericson2, Peter D Nichols3, So Kawaguchi4, Stephen Nicol5, Nils Hoem6 and Patti Virtue1, (1)Institute for Marine and Antarctic Studies, Ecology and Biodiversity, Hobart, TAS, Australia, (2)Cawthorn Institute, Nelson, New Zealand, (3)Commonwealth Scientific and Industrial Research Organisation, Oceans and Atmosphere, Hobart, TAS, Australia, (4)Australian Antarctic Division, Krill Aquarium, Kingston, TAS, Australia, (5)Institute for Marine and Antarctic Studies, Taroona, TAS, Australia, (6)Aker BioMarine, Cheif Scientist, New York, NY, United States
 
The Environmental Drivers of the Physiological Condition of Young-of-Year and Mature Female Antarctic Krill: Implications for Krill Recruitment (643270)
Kirsten Steinke1, Kim Sarah Bernard1, Robin M Ross2 and Langdon Quetin3, (1)Oregon State University, College of Earth, Ocean, and Atmospheric Sciences, Corvallis, OR, United States, (2)University of California, Santa Barbara, Marine Science Institute (Retired), United States, (3)University of California Santa Barbara, Santa Barbara, United States
 
Calibration, operation, and analysis of data from the Nortek Signature100 ADCP to estimate biomass and transport of Antarctic krill (647517)
George Cutter1, Sven Nylund2, Christian Reiss1 and David Velasco3, (1)NOAA Southwest Fisheries Science Center, Antarctic Ecosystem Research Division, La Jolla, CA, United States, (2)Nortek Group, Norway, (3)Nortek AS, San Diego, CA, UNITED STATES
 
Modelling the distribution of Antarctic krill at the South Orkney Islands: the impact of krill behaviour on large-scale population connectivity (645637)
Sally E Thorpe1, Emma Frances Young1, Eugene J Murphy1 and Angelika Renner2, (1)British Antarctic Survey, Cambridge, United Kingdom, (2)Institute of Marine Research, Troms√ł, Norway
 
Lowered Cameras Reveal Hidden Seasonal, Diel, and Swarm Density Shifts in Antarctic Krill Behaviors Throughout the Water Column (651979)
Mary Kathryn Kane, Plymouth Marine Laboratory, Plymouth, United Kingdom, Angus Atkinson, Plymouth Marine Lab, Plymouth, United Kingdom and Susanne Menden-Deuer, University of Rhode Island, Graduate School of Oceanography, Narragansett, United States
 
How will Antarctic krill habitat respond to future climate change? (644345)
Devi Veytia, University of Tasmania, Battery Point, Australia, Stuart Paul Corney, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, So Kawaguchi, Australian Antarctic Division, Krill Aquarium, Kingston, TAS, Australia, Klaus Meiners, Australian Antarctic Division, Department of the Environment, Kingston, ACT, Australia, Eugene John Murphy, British Antarctic Survey, Cambridge, United Kingdom and Sophie Bestley, Australian Antarctic Division, Kingston, TAS, Australia
 
Developing projections of change for conservation and management in the Southern Ocean (645679)
Eugene John Murphy, British Antarctic Survey, Cambridge, United Kingdom, Nadine Johnston, NERC British Antarctic Survey, Ecosystems, Cambridge, United Kingdom, Stuart Paul Corney, University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, TAS, Australia, Keith Reid, Commission for the Conservation of Antarctic Marine Living Resources, Hobart, TAS, Australia and Rachel ~D Cavanagh, NERC British Antarctic Survey, Cambridge, United Kingdom
 
A Review of the Impacts of Climate Change and Fishing on Penguins in the Western Antarctic Peninsula and Scotia Sea Region (657068)
Nicole C Bransome, The Pew Charitable Trusts, Protecting Antarctica's Southern Ocean, Washington, DC, United States, Cassandra M. Brooks, University of Colorado at Boulder, Boulder, United States and Annika Cobb, University of Colorado at Boulder, United States
 
Foraging Behavior and Movement Patterns of the Leopard Seal in the Antarctic Peninsula (653859)
Daniel P Costa, University of California Santa Cruz, Santa Cruz, CA, United States, Sarah S Kienle, University of California Santa Cruz, Dept of Ecology and Evolutionary Biology, Santa Cruz, CA, United States, Stephen Trumble, Baylor University, Biology, Waco, TX, United States, Shane Kanatous, Colorado State University, Fort Collins, CO, United States, Michael E Goebel, National Marine Fisheries Service, Antarctic Marine Living Resources Division, La Jolla, United States and Daniel E. Crocker, Sonoma State University, Biology, Rohnert Park, CA, United States