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Andrew A. Schultz, Ph.D.

Andrew Schultz is the Acting Director of the Southwest Biological Science Center. Previously Dr. Schultz was the Chief of the SBSC's Grand Canyon Monitoring and Research Center's (GCMRC) branch.

About GCMRC

Light reflects off a wide river as it winds through a sheer red-rock canyon.
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GCMRC's Projects

Sandbar that had nonnative vegetation removal on the Colorado River in Grand Canyon
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Lake Powell Research

Lake Powell and research boat
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Science and Products

U.S. Geological Survey Grand Canyon Monitoring and Research Center: Proceedings of the fiscal year 2023 annual reporting meeting to the Glen Canyon Dam Adaptive Management Program

This proceedings is prepared for the USBR and Glen Canyon Dam Adaptive Management Program (GCDAMP) to account for work conducted and products delivered in FY 2023 by SBSC's Grand Canyon Monitoring and Research Center (GCMRC) and to inform the Technical Work Group of science conducted by GCMRC and its cooperators in support of the GCDAMP. It includes a summary of accomplishments...
Authors
Andrew Alan Schultz, Gregory Mark Anderson, David Topping, Ronald E. Griffiths, David Dean, Paul E. Grams, Keith A. Kohl, Gerard Lewis Salter, Matthew A. Kaplinski, Katherine Anne Chapman, Erich R. Mueller, Emily C. Palmquist, Bradley J. Butterfield, Joel B. Sankey, Bridget Deemer, Charles B. Yackulic, Lindsay Erika Hansen, Drew Elliot Eppehimer, Theodore A. Kennedy, Anya N. Metcalfe, Jeffrey D. Muehlbauer, Morgan Ford, Michael J. Dodrill, Maria C. Dzul, Pilar Rinker, Michael J. Pillow, David L. Ward, Josh Korman, Molly A.H. Webb, James A. Crossman, Eric J Frye, David L. Rogowski, Kimberley Dibble, Lucas S. Bair, Joshua Abbott, Tom Gushue, Erica Paige Byerley, Joseph E Thomas, Thomas A. Sabol, Bryce Anthony Mihalevich
By
Ecosystems Mission Area, Southwest Biological Science Center

Synthesis of data and studies relating to Delta Smelt biology in the San Francisco Estuary, emphasizing water year 2017

In the San Francisco Estuary (SFE), the effects of freshwater flow on the aquatic ecosystem have been studied extensively over the years and remains a contentious management issue. It is especially contentious with regards to the Delta Smelt (Hypomesus transpacificus), a species endemic to the SFE that has been listed as threatened under the Federal Endangered Species Act and endangered...
Authors
Shawn Acuna, Randy Baxter, Aaron J. Bever, Larry R. Brown, Christina Burdi, Gonzalo Castillo, Louise Conrad, Steven D. Culberson, Lauren Damon, Jared Frantzich, Lenny Grimaldo, Bruce Hammock, April Hennessy, James A. Hobbs, Shruti Khanna, Peggy W. Lehman, Michael L. MacWilliams, Brian Mahardja, Andrew Alan Schultz, Steven J. Slater, Ted Sommer, Swee J. Teh, Janet K. Thompson
By
Water Resources Mission Area, California Water Science Center

Spawning and hatching of endangered Gila Chub in captivity

Information on reproductive characteristics of the endangered Gila Chub Gila intermedia is largely limited and qualitative, and culture techniques and requirements are virtually unknown. Here we provide the first published data on spawning and selected reproductive and developmental characteristics of Gila Chub. Fish were brought to the laboratory in March 2003 from Sabino Creek, Arizona...
Authors
Andrew Alan Schultz, Scott A. Bonar
By
Cooperative Research Units

Non-USGS Publications**

**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.

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A huge canyon surrounded by deep-set cliffs opens to reveal a sunny gorge and part of the Colorado River.

Grand Canyon Monitoring and Research Projects

The Grand Canyon Monitoring and Research Center currently functions under a Triennial Work Plan (TWP) which is thoroughly reviewed and vetted both internally within the Center and through the GCDAMP Technical Work Group (TWG) and the Adaptive Management Work Group (AMWG). These advisory panels have been a part of the Glen Canyon Dam adaptive management process since the inception of the GCDAMP...
By
Ecosystems Mission Area, Land Management Research Program, Southwest Biological Science Center
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Grand Canyon Monitoring and Research Projects

The Grand Canyon Monitoring and Research Center currently functions under a Triennial Work Plan (TWP) which is thoroughly reviewed and vetted both internally within the Center and through the GCDAMP Technical Work Group (TWG) and the Adaptive Management Work Group (AMWG). These advisory panels have been a part of the Glen Canyon Dam adaptive management process since the inception of the GCDAMP...
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Science and Products

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