H12E:
Aquatic Ecosystem Responses to Human Disturbances and Management: A Comparative Discussion of Inland and Coastal Ecosystems and Their Contributing Watersheds I


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Session ID#: 61945

Session Description:
Inland and coastal ecosystems are often impaired by multiple stressors, which complicates both problem description and restoration. Better understanding ecosystem responses to human disturbances and management is an increasingly important theme of hydrologic studies. Addressing such complex and widespread issues requires multidisciplinary approaches and consideration of ecosystem spatial and temporal characteristics. This session will develop an integrated understanding of how and why ecosystems have responded differently to human disturbances and management, including a synthesis of analysis tools for quantifying ecosystem improvement and establishing linkage to management efforts. The session welcomes large-scale studies (e.g., Chesapeake Bay, Great Lakes, Gulf of Mexico, Yangtze River, Baltic Sea) and small-scale studies that have broader implications. The session will feature ecosystem-specific presentations and a collective discussion on cross-system comparison. Presentations are encouraged to discuss a common set of issues, including primary impairments, management actions, watershed characteristics, restoration progress, and factors responsible for lack of progress.
Primary Convener:  Joel Blomquist, U.S. Geological Survey, Integrated Modeling and Prediction Division, Baltimore, United States
Conveners:  Dr. Qian Zhang, Qian Zhang, University of Maryland Center for Environmental Science, USEPA Chesapeake Bay Program, Annapolis, United States, Edward Stets, U.S. Geological Survey, Water Mission Area, Mounds View, MN, United States and Nandita B Basu, University of Waterloo, Department of Civil and Environmental Engineering, Waterloo, ON, Canada
Primary Liaison:  Dr. Qian Zhang, Qian Zhang, University of Maryland Center for Environmental Science, USEPA Chesapeake Bay Program, Annapolis, United States
Chairs:  Joel Blomquist, U.S. Geological Survey, Integrated Modeling and Prediction Division, Baltimore, United States and Dr. Qian Zhang, Qian Zhang, University of Maryland Center for Environmental Science, USEPA Chesapeake Bay Program, Annapolis, United States
OSPA Liaison:  Dr. Qian Zhang, Qian Zhang, University of Maryland Center for Environmental Science, USEPA Chesapeake Bay Program, Annapolis, United States

Cross-Listed:
  • B - Biogeosciences
  • GC - Global Environmental Change
  • OS - Ocean Sciences
Index Terms:

0478 Pollution: urban, regional and global [BIOGEOSCIENCES]
1803 Anthropogenic effects [HYDROLOGY]
1879 Watershed [HYDROLOGY]
4251 Marine pollution [OCEANOGRAPHY: GENERAL]

Abstracts Submitted to this Session:

Biogeochemical Asynchrony: Ecosystem Drivers of Seasonal Concentration Regimes across the Great Lakes Basin (Invited) (465725)
Kimberly Van Meter1, Shadman Chowdhury2, Danyka K Byrnes2 and Nandita B Basu3, (1)University of Waterloo, Waterloo, ON, Canada, (2)University of Waterloo, Civil and Environmental Engineering, Waterloo, ON, Canada, (3)University of Waterloo, Department of Civil and Environmental Engineering, Waterloo, ON, Canada
Delayed Response to Management of Chesapeake Bay Nitrogen Sources Caused by Long-Term Storage of Nitrogen in Groundwater (Invited) (397830)
Richard Smith, United States Geological Survey (USGS), Reston, United States, Andrew Sekellick, USGS Maryland/Delaware/District of Columbia Water Science Center, Baltimore, MD, United States, Ward E Sanford, United States Geological Survey, Reston, Virginia, United States, Joel Blomquist, U.S. Geological Survey, Integrated Modeling and Prediction Division, Baltimore, United States, Anna Baker, University of Minnesota Twin Cities, Water Resources Science, Minneapolis, MN, United States, Gregory E. Schwarz, U.S. Geological Survey, Reston, VA, United States and John W Brakebill, USGS, Reston, VA, United States
Understanding Hydrobiogeochemical Controls of Nutrient Export Using Process-based Watershed Modeling (366437)
Li Li, Pennsylvania State University Main Campus, Department of Civil and Environmental Engineering, University Park, PA, United States, Wei Zhi, Pennsylvania State University Main Campus, Department of Civil and Environmental Engineering, University Park, United States, Christopher Duffy, Pennsylvania State University Main Campus, Department of Environmental and Civil Engineering, University Park, United States and Gopal Bhatt, Penn State University, University Park, PA, United States
Anthropogenic nitrogen inputs to Saipan’s coastal waters: Exploring sources, pathways, and ecosystem resilience (369465)
Karen L. Knee1, Alexandra Morris2, Naomi Geeraert3, Yvonne Yau4 and Kiho Kim1, (1)American University, Environmental Science, Washington, United States, (2)American University, Environmental Science, Washington, DC, United States, (3)University of Hong Kong, Hong Kong, Hong Kong, (4)University of Hong Kong, School of Biological Sciences, Hong Kong, Hong Kong
Impact of a Temporally-Displaced Mississippi River Spring Flood on Nutrient and Aquatic Ecosystem Responses in Estuarine Waters: A Hydrologic Harbinger of a Shifting Climatic Future Affecting Coastal Food Webs (466693)
John R White, Louisiana State University, Oceanography & Coastal Sciences, Baton Rouge, LA, United States, Nandita B Basu, University of Waterloo, Department of Civil and Environmental Engineering, Waterloo, ON, Canada, Eric D. Roy, University of Vermont, Rubenstein School of Environment and Natural Resources, Burlington, VT, United States, Sibel Bargu, Louisiana State University, Oceanography & Coastal Sciences, Baton Rouge, United States and Stephen R Midway, Louisiana State University, Oceanography and Coastal Sciences, Baton Rouge, LA, United States
Evaluating Impacts of Riparian Buffers on Headwater Stream Ecosystem Dynamics Across Southern British Columbia, Canada (449828)
Claire Marie Ruffing-Cathcart, University of British Columbia, Vancouver, BC, Canada and John S Richardson, University of British Columbia, Forest and Conservation Sciences, Vancouver, BC, Canada
Evaluation of stream restoration strategies for urban residential watersheds by coupling riparian and aquatic ecosystem modeling (417291)
Lawrence E Band, University of Virginia, Engineering Systems and Environment, Charlottesville, VA, United States, Laurence Lin, University of Alabama, Tuscaloosa, AL, United States, Alexander Joseph Reisinger, University of Florida, Soil, Water, and Ecosystem Sciences, Gainesville, United States, Emma J Rosi, Cary Institute of Ecosystem Studies, Millbrook, NY, United States, Sujay Kaushal, University of Maryland, Department of Geology and Earth System Science Interdisciplinary Center, College Park, United States and Peter M Groffman, Cary Inst Ecosystem Studies, Millbrook, United States
Trends in U.S. stream quality: Distinguishing the effects of changes in streamflow versus changes in watershed management (416246)
Jennifer Murphy, US Geological Survey, Central Midwest Water Science Center, DeKalb, IL, United States and Lori A. Sprague, U.S. Geological Survey, Water Mission Area, Lakewood, United States

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