Glen Canyon Dam Adaptive Management Program 

Annual Reporting Meeting 2021 

WebEx: https://bor.webex.com/bor/j.php?MTID=mb12e3159360158cb8099dac6cbc22c74 

Meeting # 199 863 7739 

Password: AR20 

Phone: (415) 524-5035 Access code: 199 863 7739

TIME Wednesday, January 20, 2021

8:30 – 8:40

(:10)

Welcome and Administrative: Seth Shanahan, Technical Work Group (TWG) Chair

• Introductions: Michael Moran, Deputy Chief, USGS GCMRC

Modeling Tools for Management

8:40 – 9:00

(:20) 

Mike Runge, USGS Patuxent Wildlife Research Center, Introduction to modeling tools for adaptive 

management

9:00 – 9:15

(:15) Brad Butterfield, NAU, Riparian vegetation

9:20 – 9:35

(:15) Charles Yackulic, USGS GCMRC, Fish populations in Lees Ferry and the Little Colorado River

9:40 – 9:55

(:15) Kim Dibble, USGS GCMRC, Fish populations in the Western Grand Canyon

10:00 – 10:20

(:20) BREAK

10:20 – 10:35

(:15) Paul Grams, USGS GCMRC, Sediment in the Grand Canyon

10:40 – 10:55

(:15) Lucas Bair, USGS GCMRC, Recreational use in Glen and Grand Canyons

11:00 – 11:15

(:15) Clayton Palmer, WAPA, Hydropower

11:20 – 12:00

(:40) 

Panel Discussion, Modeling Tools for Management: Mike Runge, Charles Yackulic, and Lucas Bair, 

moderators

12:00 – 12:45

(:45) LUNCH

Humpback Chub and Other Native Fish

12:45 – 1:45

(:60) Maria Dzul, USGS GCMRC, Randy VanHaverbeke, USFWS, Humpback chub in the Grand Canyon

1:50 – 2:10

(:20) Brian Healy, NPS, Humpback chub translocations

2:15 – 2:35

(:20)

Dave Rogowski, AGFD, Colorado River native and nonnative fish abundance and distribution including

Pearce Ferry rapid

2:35 – 2:50

(:15) 

Stakeholder Discussion: Management implications of humpback chub and other native fish

monitoring and research: TBD, moderator

2:50 – 3:05

(:15) BREAK

Water Quality/Ecosystem Drivers/Aquatic Food Base

3:05 – 3:25

(:20)

Bridget Deemer, USGS GCMRC, Flows and phosphorus: the influence of Lake Powell on primary 

production dynamics in the Colorado River

3:30 – 3:50

(:20) Jeff Muehlbauer and Ted Kennedy, USGS GCMRC, Bug flows 2020

3:50 – 4:05

(:15)

Stakeholder Discussion: Management implications of water quality, ecosystem drivers, and 

aquatic food base monitoring and research, TBD, moderator

Rainbow Trout Fishery

4:05 – 4:25

(:20) Jan Boyer, AGFD, Lees Ferry fishery monitoring

4:30 – 4:50

(:20) Mike Yard, USGS GCMRC, Rainbow trout in Glen and Grand canyons

4:50 – 5:05

(:15) 

Stakeholder Discussion: Management implications of rainbow trout fishery monitoring and 

research: TBD, moderator

5:05 Adjourn

5:30 – 7:00 POSTER SESSION (list of posters attached)
Poster Session: 5:30 – 6:30 PM

Click Here for Poster Session

Poster Title Author

Water Quality/Ecosystem Drivers/Aquatic Food Base

Sources and forms of phosphorus in the Colorado River in Grand Canyon: Lightning talk at 

5:30 PM Somer Morris, USGS GCMRC

Thermal tolerance and riverbed drying resistance of a pestiferous net-spinning caddisfly, 

Smicridea fasciatella, below the Davis Dam: Lightning talk at 5:45 PM

Michael Cavallaro, Bullhead 

City, AZ

Archaeological Resources/Riparian Vegetation/Hydropower and Energy

Vegetation monitoring, status and trends: Lightning talk at 6:00 PM

Emily Palmquist, USGS 

GCMRC, Brad Butterfield

NAU, and Erica Fraley, USGS 

GCMRC

Nonnative Invasive Species

Effects of common carp predation on survival of humpback chub eggs and larvae: Lightning 

talk at 6:15 PM David Ward, USGS GCMRC
Glen Canyon Dam Adaptive Management Program 

Annual Reporting Meeting 2021 

WebEx: https://bor.webex.com/bor/j.php?MTID=maf32ead06e432fa4935ec92e3b393c8e

Meeting Number: 199 678 0474

Password: AR21

Phone Number: 415-527-5035

Access Code: 199 678 0474

TIME Thursday, January 21, 2021

8:30 – 8:40

(:10)

Welcome and Administrative: Seth Shanahan, TWG Chair

• Introductions: Scott VanderKooi, Chief, USGS, GMCRC

Tribal Resources

8:40 – 9:00

(:20)

Lucas Bair, USGS GCMRC, Incorporating tribal knowledge and preferences into adaptive 

management: A survey of the Hualapai Tribe

9:00 – 9:15

(:15) 

Kurt Dongoske, Pueblo of Zuni, Place, time, and consciousness in the Glen Canyon Dam Adaptive 

Management Program (Session organizer), Introduction to session

9:15 – 9:35

(20)

Giorgio Hadi Curti, San Diego State, What does science do? A disparate dance of states of affairs and 

cartographic events

9:35 – 9:55

(20) Edward Wemytewa, Pueblo of Zuni

9:55 – 10:15

(20) Lucas Bair, Emily Palmquist, and Charles Yackulic, USGS GCMRC

10:15 – 10:35

(20) Simone Athayde, Amazon Dams Network

10:35 – 10:55

(20) Claire Smith, Flinders University, Australia

10:55 – 11:15

(20) Rebecca Tsosie, James E. Rogers College of Law, University of Arizona, Discussant

11:15 – 101:45

(:30) 

Panel Discussion: Place, time, and consciousness in the Glen Canyon Dam Adaptive 

Management Program, Kurt Dongoske, Pueblo of Zuni

11:45 – 12:30

(:45) LUNCH

Sediment, Sandbars, and Geomorphology

12:30 – 12:50

(:20)

David Topping, USGS GCMRC, The long-term sustainability of sand resources in the Colorado River 

ecosystem remains an open question

12:55 – 1:15

(:20)

Paul Grams, USGS GCMRC, The effects of high-flow experiments and dam releases on sandbar 

erosion and deposition in Marble and Grand Canyons

1:20 – 1:40

(:20)

Alan Kasprak, Fort Lewis College, Future regulated flows of the Colorado River in Grand Canyon 

foretell decreased areal extent of sediment and increases in riparian vegetation

1:40 – 1:55

(:15)

Stakeholder Discussion: Management implications of sediment, sand bars, and geomorphology 

monitoring and research: TBD, moderator

Archaeological Resources/Riparian Vegetation/Hydropower and Energy

1:55 – 2:15

(:20)

Lonnie Pilkington, NPS and Joel Sankey USGS GCMRC, Vegetation management in the Grand 

Canyon

2:20 – 2:40

(:20)

Helen Fairley, USGS GCMRC, Using repeat photography to document dam operation effects on sand 

supply, aeolian landscapes, and terrestrial ecology in the Colorado River Ecosystem

2:45 – 3:05

(:20) Clayton Palmer, WAPA, Glen Canyon Dam hydropower production – status, trends, and experiments

3:05 – 3:20

(:15)

Stakeholder Discussion: Management implications of archeological resources, riparian 

vegetation, and hydropower and energy monitoring and research: TBD, moderator

3:20 – 3:40

(:20) BREAK

Nonnative Invasive Species

3:40– 4:00

(:20)

David Ward, USGS GCMRC, Assessing relative predation risks to native fishes from introduced 

warm-water predators

4:05 – 4:25

(:20) Brian Healy, NPS, Brown trout control

4:30 – 4:50

(:20) Charles Yackulic, USGS GCMRC, Brown trout population modeling

4:50 – 5:05

(:15)

Stakeholder Discussion: Management implications of nonnative invasive fish monitoring and 

research: TBD, moderator

5:05 Adjourn