US Forest Service Research & Development
Contact Information
  • US Forest Service Research & Development
  • 1400 Independence Ave., SW
  • Washington, D.C. 20250-0003
  • 800-832-1355
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Andy Dolloff

C. Andrew Dolloff

Project Leader
1710 Research Center Drive
Virginia Tech
United States

Phone: 540-231-4864
Fax: 540-231-1383
Contact C. Andrew Dolloff

Current Research

  • Climate change: characterization and prediction of water temperature in headwater streams
  • Effect of climate change on transition of aquatic communities from cold-, cool-, and warmwater habitats
  • Influence of disturbances [floods, debris flows, transportation networks, water temperature] on aquatic organisms
  • American Eel freshwater distribution, age & growth, and habitat use
  • Influence of frequent prescribed fire on large wood in Atlantic coastal plain streams and aquatic communities
  • Effect of dam and reservoir operation on riverine communities

Research Interests

  • Trout and coldwater fish production ecology
  • Ecology and management of large wood in stream
  • Effectiveness of forestry Best Management Practices
  • Influence of natural [hurricanes, ice storms, microbursts, landslides and debris flows] and human-related [acid precipitation, road/stream crossings, increased temperature, water-based recreation, forest harvest] disturbance on stream fauna and ecology

Past Research

  • Effects of removal/addition of large wood in streams on coldwater fishes and their habitats (Alaska and Virginia)
  • Winter habitat use by juvenile Coho Salmon and Dolly Varden (Alaska)
  • Basinwide estimation of habitat and fish populations (Alaska, Virginia, North Carolina, Tennessee, Georgia)
  • Use of surrogate species to evaluate the impact of habitat disturbance on threatened, endangered or sensitive benthic riffle fishes
  • Manipulation of streamside management zone width and harvest intensity for water quality (Virginia, West Virginia)
  • Loss of Eastern hemlock from riparian areas in the Eastern US
  • Alternative methods for assessing fish distribution and abundance [benthic riffle fishes, underwater observation, scale dependent sampling protocols, sample extrapolation]

Why This Research is Important

The aquatic fauna of the southeastern US is among the most diverse worldwide, with many dozens of endemic species spread across 13 southeastern states. Many of these species, such as the eastern Brook Trout are highly prized both for their sport and asthetc value but are under increasing pressure from land use and climate change. Particularly in coldwater streams, the composition and character of aquatic communities are among the most compelling indicators of ecosystem heath and vitality. The response of aquatic organisms to changes in water quality and their habitats can be directly linked to disturbances and land use changes, and knowledge of the role of disturbance in structuring aquatic communities will enable managers to implement protective measures and enhancements.



  • Montana State University, Ph.D. Fisheries and Wildlife 1983
  • North Carolina State University, M.S. Zoology 1979
  • University of Maine, B.S. Wildlife Management 1975

Professional Experience

  • Project Leader and Supervisory Fishery Research Biologist, USDA USFS SRS Forest Watershed Science
    2019 - Current
  • Team Leader and Supervisory Fisheries Research Biologist , USDA Forest Service Southern Research Station, Blacksburg, Virginia
    2006 - Current
  • Project Leader and Supervisory Fisheries Research Biologist , USDA Forest Service Southern Research Station, Blacksburg, Virginia
    1993 - 2006
  • Fisheries Research Biologist , USDA Forest Service Southeastern Forest Experiment Station, Blacksburg, Virginia.
    1987 - 1993
  • Post Doctoral Fishery Scientist, USDA Forest Service Pacific Northwest Forest Experiment Station, Forestry Sciences Laboratory, Juneau, Alaska and Montana State University, Bozeman, MT
    1983 - 1987

Professional Organizations

  • Sigma Xi, The Scientific Research Honor Society, Member (1981 - Current)
  • American Institute of Fishery Research Biologists, Member (1979 - Current)
  • American Fisheries Society, Lifetime Member (1978 - Current)
    Secretary/Treasurer, Alaska Chapter AFS 1986. Faculty Advisor, VPI&SU Chapter AFS 1988-89. Trout Committee, Southern Division AFS 1988-present; Sec\Treas 1992-93, Chair 1995. President, Virginia Chapter AFS 1994-95. Associate Editor, Transactions of the American Fisheries Society 9/95-9/97. Program Committee, AFS Annual Meetings, 1997-2000, Chair 1999, Charlotte, NC. Time and Place Committee, 2000 AFS annual meeting St. Louis, MO. Program Committee, Virginia Chapter AFS 2013-2014.
  • Xi Sigma Pi Forestry Honor Society, Member (1973 - Current)
  • The Wildlife Society, Member (1972 - 2006)

Awards & Recognition

  • Award for Professional Excellence, 2009
    University of Maine Department of Wildlife Ecology
  • USDA-Forest Service Rise to the Future Award, 2004
    Mentorship Award
  • Federal Laboratory Consortium for Technology Transfer, 2000
    Recognizes the technology transfer efforts of C.A. Dolloff USDA Forest Service, SRS, Center for Aquatic Technology Transfer, for efforts in scientifically-based management of aquatic habitat and resources on forested lands.
  • USDA Forest Service Rise to the Future, 1999
    For Collaborative Aquatic Resource Stewardship (presented to the Center for Aquatic Technology Transfer (CATT)).
  • USDA-Forest Service Eastern Region Award, 1999
    Award for Riparian Management
  • USDA-Forest Service Rise to the Future Award, 1991
    For outstanding efforts in support of the program for aquatic habitat improvement.
  • USDA Unit Award for Superior Service , 1989
    For outstanding achievement in providing new information and creative methodologies to protect and enhance fish habitat on forest and range lands
  • USDA-Forest Service Research Award, 1988
    For Excellence in Technology Transfer

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Last updated on : 11/30/2021