Colleen Caldwell, Ph.D.

Colleen received a B.S. in Fisheries Sciences from Texas A&M University, an M.S. in Aquatic Ecology from Texas State University, and a Ph.D. in Ecology from the University of Tennessee-Knoxville. She joined the New Mexico Unit in 1994 and in 2006 stepped up to the plate to become Unit Leader.


Only Colleen's five most recent publications are shown here. For more information about Colleen, including a full publications list, visit her profile page on the New Mexico Cooperative Fish and Wildlife Research Unit web site.
Colleen also can be reached at her New Mexico State University email address:


  • Ph D University of Tennessee 1988
  • MS Texas State University 1985
  • BS Texas A&M University 1982

Research Interests

Research interests are centered around ecological effects that environmental disturbances have on aquatic systems.
Areas of research include

  • aquatic contaminants and toxicology,
  • fish physiology, and
  • native fish conservation biology.

Teaching Interests

At New Mexico State University, Colleen teaches Environmental Biology of Fishes and Aquatic Contaminants and Toxicology (4 credit hours; both include weekly laboratory exercises). In Environmental Biology of Fishes, she asks and answers the question "what makes a fish, a fish?" In Aquatic Contaminants and Toxicology, she draws upon the enviromental toxicology literature and her research program to teach about the transport, fate and effects of contaminants in arid-lands aquatic systems.