Colleen Caldwell

Appointment: Unit Leader and Affiliate Professor

Research Areas: Fish conservation, aquatic ecology, fish physiology, aquatic toxicology

Current Projects * Habitat suitability for Gila chub reintroduction in the Upper San Francisco River, Gila National Forest (2020-2023) * Natal source and the influence of environmental bottlenecks on Largemouth bass recruitment in Elephant Butte Reservoir (2017-2022) * Influence of stream temperature, intermittency, and nonnative fishes on the current and future distribution of fishes of conservation need in the Gila and Mimbres drainage basins (2016-2021) * Use of Trojan Male Brook Trout as a Conservation Tool for Restoring Native Rio Grande Cutthroat Trout in New Mexico (2018-2023) * Impact of drought on Rio Grande cutthroat trout: Influence of flow and temperature on persistence (2015-2019) * Influence of large-scale wildfire on temporal and spatial distribution of fish and benthic invertebrate communities of the Valles Caldera National Preserve (2015-2020) * Natal origin, survival, and food web dynamics of a Rainbow Trout population in Eagle Nest Lake, New Mexico (2019-2022)

Professional Experience:

  • 2006-Present: Unit Leader, New Mexico Cooperative Fish and Wildlife Research Unit, Department of Fish, Wildlife and Conservation Ecology, New Mexico State University
  • 1994-2006: Assistant Unit Leader, Fisheries, New Mexico Cooperative Fish and Wildlife Research Unit, Department of Fishery and Wildlife Sciences, New Mexico State University
  • 1991-1994: Field Station Leader, USFWS, National Fisheries Contaminant Research Center, La Crosse, Wisconsin
  • 1988-1991: Post-doctoral Research Associate, North Carolina State University


  • Ph.D., University of Tennessee-Knoxville, 1988
  • M.S., Southwest Texas State University, 1985
  • B.S., Texas A & M University, 1982

Colleen Caldwell
NMSU | Knox Hall Rm 125
Phone: 575-646-8126
Fax: 575-646-1281