EP006
Biophysical processes of rivers under extreme and changing conditions

Session ID#: 75933

Session Description:
Rivers are naturally dynamic systems, characterized by a suite of biophysical processes that are regularly subject to exogenous factors. Under ranges of natural variability, the physics and biota of rivers are resilient to external changes. However, river basins globally are undergoing landscape-scale changes. These changes, which are associated with widespread land use, water management, and climate change, can fundamentally alter biophysical processes.

This session focuses on the science and management of integrated biophysical processes in river systems undergoing changing variability, including greater and/or more frequent extremes. Topics may address questions such as: How do changing and extreme events (e.g. streamflow magnitude, frequency, timing, temperature) influence river processes or form and resultant ecosystem structure and function (e.g. habitat quality and availability, egg survival, food webs, algal blooms)? How should management and restoration of rivers be designed and prioritized to mitigate and/or be resilient to these large-scale changes?

Index Terms:

0439 Ecosystems, structure and dynamics [BIOGEOSCIENCES]
0481 Restoration [BIOGEOSCIENCES]
1825 Geomorphology: fluvial [HYDROLOGY]
4327 Resilience [NATURAL HAZARDS]

Primary Convener:  Desiree D Tullos, Oregon State University, Corvallis, OR, United States
Conveners:  Hamish J. Moir, cbec eco-engineering UK Ltd, Inverness, Scotland, United Kingdom, Lee Harrison, NOAA, Santa Cruz, CA, United States and John M Buffington, US Forest Service, Boise, ID, United States
Primary Liaison:  Desiree D Tullos, Oregon State University, Corvallis, OR, United States
 
The Mekong River Basin: Landscape-scale Changes to Biophysical Processes (Invited) (491962)
G Mathias Kondolf, University of California Berkeley, Center for Environmental Design Research, Berkeley, CA, United States and Rafael J. P. Schmitt, University of California Berkeley, Department of Landscape Architecture and Environmental Planning, Berkeley, CA, United States
 
Shifting Habitat Mosaics of Free-flowing Rivers and Fish Production in an Uncertain Future (500170)
Sean Brennan, University of Washington, School of Aquatic and Fisheries Sciences, Seattle, WA, United States and Daniel Schindler, University of Washington, Seattle, WA, United States
 
Assessing the Impact of Altered Peak Flow Regimes on Salmon Populations (507819)
COLIN Nicol, Jeff Jorgensen, Caleb Brooks Fogel and Timothy J Beechie, NOAA Northwest Fisheries Science Center, Seattle, WA, United States
 
Habitat Restoration May Increase Salmon Resilience to Increasing Extremes in Peak Flow and Stream Temperature (507878)
Timothy J Beechie1, COLIN Nicol2, Caleb Brooks Fogel3 and Jeff Jorgensen3, (1)NOAA Seattle, Northwest Fisheries Science Center, Seattle, WA, United States, (2)NOAA, Seattle, WA, United States, (3)NOAA Northwest Fisheries Science Center, Seattle, WA, United States
 
Salmonid Response to Rising Stream Temperatures in the Chehalis River Basin (507889)
Caleb Brooks Fogel1, COLIN Nicol2, Jeff Jorgensen1 and Timothy J Beechie1, (1)NOAA Northwest Fisheries Science Center, Seattle, WA, United States, (2)NOAA, Seattle, WA, United States
 
Ecosystem response to the removal of two large dams in the Pacific Northwest (508160)
George R Pess1, Mike McHenry2, Samual Brenkman3, Roger Peters4, Keith Denton5, Joe Anderson6, John McMillan7, Martin C Liermann1, Sarah Morley8, Jeffrey Duda9, Christopher Tonra10, Andrew C Ritchie11 and Amy E East12, (1)NOAA Seattle, Seattle, WA, United States, (2)Lower Elwha Klallam Tribe, Port Angeles, WA, United States, (3)National Park Service, Port Angeles, WA, United States, (4)USFWS, Lacey, WA, United States, (5)KPD Consulting LLC, Sequim, WA, United States, (6)WDFW, Olympia, WA, United States, (7)Trout Unlimited, Port Angeles, WA, United States, (8)NOAA, NWFSC - Fish Ecology, Seattle, WA, United States, (9)U.S. Geological Survey, Western Fisheries Research Center, Seattle, WA, United States, (10)Ohio State University Main Campus, School of Environment and Natural Resources, Columbus, OH, United States, (11)U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA, United States, (12)USGS San Diego Field Station, San Diego, United States
 
RAPID TIDAL MARSH DEVELOPMENT IN RESPONSE TO ANTHROPOGENIC SHORELINE MODIFICATION- HUDSON RIVER ESTUARY (510462)
Caroline Ladlow, University of Massachusetts Amherst, Department of Geosciences, Amherst, MA, United States, Brian Yellen, University of Massachusetts Amherst, Amherst, MA, United States, Jonathan D Woodruff, Woods Hole Oceanographic Inst, Woods Hole, MA, United States, Waverly Lau, University of Massachusetts Amherst, GeoSciences, Amherst, MA, United States, Brian Premo, University of Massachusetts Amherst, Geosciences, Amherst, MA, United States and David K Ralston, WHOI, Applied Ocean Physics & Engineering, Woods Hole, MA, United States
 
Modeling Floods and Channel Migration in a Changing Climate (Invited) (510573)
Sarah Davidson, BGC Engineering Vancouver, Vancouver, BC, Canada, Brett C Eaton, Univ British Columbia, Vancouver, BC, Canada and Matthias Jakob, BGC Engineering, Vancouver, BC, Canada
 
How restoring natural physical riverine processes can mitigate the impacts of an increasingly extreme hydrological regime. (511507)
Hamish J. Moir, cbec eco-engineering UK Ltd, Inverness, Scotland, United Kingdom; University of the Highlands and Islands, Rivers and Lochs Institute, Inverness, Scotland, United Kingdom and Eric Gillies, cbec eco-engineering UK, Inverness, United Kingdom; University of Glasgow, Glasgow, United Kingdom
 
What is Fluvial Geomorphic Equilibrium?: Evaluating Morphological and Sedimentological Understandings of Channel Equilibrium following Dam Removal in a Small Upland Catchment (511765)
Jordan Fields, Dartmouth College, Department of Earth Sciences, Hanover, NH, United States, Frank J Magilligan, Dartmouth College, Hanover, NH, United States and Carl E Renshaw, Dartmouth College, Department of Earth Sciences & Thayer School of Engineering, Hanover, NH, United States
 
ARTIFICIAL GENTLE FLOW TOPOGRAPHY AS JUVENILE CHUM SALMON HABITAT IN THE TOKACHI RIVER ESTUARY, NORTHERN JAPAN (514564)
Masanori Nunokawa1, Atsushi Tanise2 and Masaaki Murayama1, (1)PWRI Public Works Research Institute, Civil Engineering Research Institute for cold regions, Sapporo, Japan, (2)PWRI Public Works Research Instituite, CERI Civil Engineering Research Institute for cold region, Sapporo, Japan
 
Does variable channel morphology lead to dynamic salmon habitat? (545072)
David Reid1, Marwan A Hassan2, Stephen A Bird3, Robin Pike4 and Peter Tschaplinski4, (1)University of British Columbia, Geography, Vancouver, BC, Canada, (2)Univ British Columbia, Vancouver, BC, Canada, (3)Fluvial Systems Research Inc., White Rock, BC, Canada, (4)Government of British Columbia, Victoria, Canada
 
Evaluation of Floodplain Connectivity and Larval Fish Transport During an Extreme Event (547522)
Edward A Bulliner IV, U. S. Geological Survey, Columbia Environmental Research Center, Columbia, MO, United States, Caroline M Elliott, USGS, Baltimore, MD, United States, Susannah O. Erwin, US Geological Survey, Columbia, MO, United States and Robert B Jacobson, USGS, Columbia, MO, United States
 
Lithology-Mediated Differences in the Physical Disturbance Regimes and Recovery of Primary Production in Mountain Streams (558150)
Samantha Cargill, Oregon State University, Water Resources Graduate Program, Corvallis, OR, United States, Catalina Segura, Oregon State University, Forest Engineering, Resources, and Management; Water Resources Graduate Program, Corvallis, OR, United States and Dana Warren, Oregon State University, Corvallis, OR, United States
 
Integrating juvenile habitat quality and river connectivity models to prioritise the management of manmade barriers to migration for Atlantic salmon across spatial scales (602881)
Bas Buddendorf1, Faye L Jackson2, Iain Malcolm2, Karen Jane Millidine2 and Chris Soulsby1, (1)University of Aberdeen, Northern Rivers Institute, Aberdeen, United Kingdom, (2)Marine Scotland Science, Freshwater Fisheries Laboratory, Pitlochry, United Kingdom
 
Channel and Fish Habitat Response to Dam Removal and a Large Flood in a Mountain River (608061)
Alec C Fojtik, University of Illinois at Urbana Champaign, Geography and Geographic Information Science, Urbana, IL, United States and Piotr Cienciala, University of Illinois at Urbana Champaign, Department of Geography and Geographic Information Science, Urbana, IL, United States
 
Relative influences of catchment geometry, valley geology, flood hydrology and land use change on two forested mountain rivers on the Olympic Peninsula, Washington. (616134)
Kristin L Jaeger1, Adrian Landstedt2, Christopher A Curran3 and Scott Wallace Anderson1, (1)USGS Washington Water Science Center, Tacoma, WA, United States, (2)USGS, Tacoma, United States, (3)U.S. Geological Survey, Washington Water Science Center, Tacoma, WA, United States
 
Partitioning a mass-balance sediment budget by sand-size classes to understand where, when, and why channel change occurs (616483)
Christina Leonard1, John C Schmidt1, David J. Topping2 and Ronald E. Griffiths2, (1)Utah State University, Watershed Sciences, Logan, UT, United States, (2)USGS Grand Canyon Monitoring and Research Center, Southwest Biological Science Center, Flagstaff, AZ, United States
 
The Effects of Freshwater Mussel Assemblages on River Form and Function (625422)
Brandon J Sansom, Sean Joseph Bennett and Joseph F Atkinson, University at Buffalo, Buffalo, NY, United States
 
Wood Debris Sources and Logjam Distribution and Dynamics Before and After Two Large Dam Removals on the Elwha River, WA (629687)
Vivian Leung, University of Washington, Seattle, WA, United States, David Montgomery, University of Washington Seattle Campus, Earth and Space Sciences, Seattle, WA, United States, Mike McHenry, Lower Elwha Klallam Tribe, Port Angeles, WA, United States and Randall McCoy, Lower Elwha Klallam Tribe, Natural Resources, Port Angeles, United States
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